├── app
    ├── .gitignore
    ├── src
    │   ├── main
    │   │   ├── res
    │   │   │   ├── mipmap-hdpi
    │   │   │   │   └── ic_launcher.png
    │   │   │   ├── mipmap-mdpi
    │   │   │   │   └── ic_launcher.png
    │   │   │   ├── mipmap-xhdpi
    │   │   │   │   └── ic_launcher.png
    │   │   │   ├── mipmap-xxhdpi
    │   │   │   │   └── ic_launcher.png
    │   │   │   ├── drawable-hdpi
    │   │   │   │   ├── ic_sort_white_asc.png
    │   │   │   │   ├── ic_sort_white_desc.png
    │   │   │   │   ├── ic_crop_original_black.png
    │   │   │   │   └── ic_error_outline_black.png
    │   │   │   ├── drawable-mdpi
    │   │   │   │   ├── ic_sort_white_asc.png
    │   │   │   │   ├── ic_sort_white_desc.png
    │   │   │   │   ├── ic_crop_original_black.png
    │   │   │   │   └── ic_error_outline_black.png
    │   │   │   ├── drawable-xhdpi
    │   │   │   │   ├── ic_sort_white_asc.png
    │   │   │   │   ├── ic_sort_white_desc.png
    │   │   │   │   ├── ic_crop_original_black.png
    │   │   │   │   └── ic_error_outline_black.png
    │   │   │   ├── drawable-xxhdpi
    │   │   │   │   ├── ic_sort_white_asc.png
    │   │   │   │   ├── ic_sort_white_desc.png
    │   │   │   │   ├── ic_crop_original_black.png
    │   │   │   │   └── ic_error_outline_black.png
    │   │   │   ├── drawable-xxxhdpi
    │   │   │   │   ├── ic_sort_white_asc.png
    │   │   │   │   ├── ic_sort_white_desc.png
    │   │   │   │   ├── ic_crop_original_black.png
    │   │   │   │   └── ic_error_outline_black.png
    │   │   │   ├── drawable
    │   │   │   │   ├── sort_toggle_state_drawable.xml
    │   │   │   │   └── selector_item_photo.xml
    │   │   │   ├── values
    │   │   │   │   ├── colors.xml
    │   │   │   │   ├── dimens.xml
    │   │   │   │   ├── strings.xml
    │   │   │   │   └── styles.xml
    │   │   │   ├── layout
    │   │   │   │   ├── view_progress.xml
    │   │   │   │   ├── view_retry.xml
    │   │   │   │   ├── activity_photo_details.xml
    │   │   │   │   ├── menu_item_sort.xml
    │   │   │   │   ├── view_photo_details.xml
    │   │   │   │   ├── list_item_photo.xml
    │   │   │   │   └── activity_photo_list.xml
    │   │   │   ├── menu
    │   │   │   │   └── photos_list.xml
    │   │   │   └── layout-land
    │   │   │   │   └── view_photo_details.xml
    │   │   ├── java
    │   │   │   └── com
    │   │   │   │   └── photoviewer
    │   │   │   │       ├── presentation
    │   │   │   │           ├── di
    │   │   │   │           │   └── modules
    │   │   │   │           │   │   ├── IntegrationTestsStaticModule.java
    │   │   │   │           │   │   ├── DiActivityModule.java
    │   │   │   │           │   │   ├── AppModule.java
    │   │   │   │           │   │   ├── DataModule.java
    │   │   │   │           │   │   ├── UseCasesModule.java
    │   │   │   │           │   │   ├── RxModule.java
    │   │   │   │           │   │   └── ApiModule.java
    │   │   │   │           ├── model
    │   │   │   │           │   ├── PhotoModel.java
    │   │   │   │           │   └── PhotoStatisticsModel.java
    │   │   │   │           ├── view
    │   │   │   │           │   ├── PhotoDetailsView.java
    │   │   │   │           │   ├── activity
    │   │   │   │           │   │   ├── DiAppCompatActivity.java
    │   │   │   │           │   │   ├── PhotoDetailsActivity.java
    │   │   │   │           │   │   └── PhotosListActivity.java
    │   │   │   │           │   ├── LoadDataView.java
    │   │   │   │           │   ├── PhotoListView.java
    │   │   │   │           │   ├── utils
    │   │   │   │           │   │   └── ImageRoundedCornersTransformation.java
    │   │   │   │           │   └── adapter
    │   │   │   │           │   │   └── PhotoAdapter.java
    │   │   │   │           ├── PhotoViewerApplication.java
    │   │   │   │           ├── mapper
    │   │   │   │           │   ├── photo
    │   │   │   │           │   │   ├── PhotoModelToPhoto.java
    │   │   │   │           │   │   └── PhotoToPhotoModel.java
    │   │   │   │           │   └── photostatistics
    │   │   │   │           │   │   ├── PhotoStatisticsToPhotoStatisticsModel.java
    │   │   │   │           │   │   └── PhotoStatisticsModelToPhotoStatistics.java
    │   │   │   │           ├── navigation
    │   │   │   │           │   └── Navigator.java
    │   │   │   │           └── presenter
    │   │   │   │           │   ├── SimplePresenter.java
    │   │   │   │           │   ├── Presenter.java
    │   │   │   │           │   ├── PhotoDetailsPresenter.java
    │   │   │   │           │   └── PhotoListPresenter.java
    │   │   │   │       ├── domain
    │   │   │   │           ├── mapper
    │   │   │   │           │   ├── LayerDataTransformer.java
    │   │   │   │           │   ├── BaseLayerDataTransformer.java
    │   │   │   │           │   ├── photo
    │   │   │   │           │   │   └── PhotoEntityToPhoto.java
    │   │   │   │           │   └── photostatisctics
    │   │   │   │           │   │   └── PhotoStatisticsToPhotoStatisticsEntity.java
    │   │   │   │           ├── PhotoStatistics.java
    │   │   │   │           ├── Photo.java
    │   │   │   │           ├── usecases
    │   │   │   │           │   ├── SimpleSubscriber.java
    │   │   │   │           │   ├── GetPhotosList.java
    │   │   │   │           │   ├── UseCase.java
    │   │   │   │           │   ├── GetPhotoDetails.java
    │   │   │   │           │   ├── SearchByTitle.java
    │   │   │   │           │   ├── GetPhotoStatistics.java
    │   │   │   │           │   └── SavePhotoStatistics.java
    │   │   │   │           └── repository
    │   │   │   │           │   ├── PhotoStatisticsRepository.java
    │   │   │   │           │   └── PhotoRepository.java
    │   │   │   │       └── data
    │   │   │   │           ├── preferences
    │   │   │   │               └── orm
    │   │   │   │               │   ├── PreferenceFile.java
    │   │   │   │               │   ├── Preference.java
    │   │   │   │               │   └── PreferencesDao.java
    │   │   │   │           ├── network
    │   │   │   │               └── PhotoRestService.java
    │   │   │   │           ├── repository
    │   │   │   │               ├── datastore
    │   │   │   │               │   ├── ServerPhotoEntityStore.java
    │   │   │   │               │   ├── PreferencesPhotoStatisticsEntityStore.java
    │   │   │   │               │   └── DatabasePhotoEntityStore.java
    │   │   │   │               ├── PhotoStatisticsEntityDataSource.java
    │   │   │   │               └── PhotoEntityDataSource.java
    │   │   │   │           ├── entity
    │   │   │   │               ├── PhotoStatisticsEntity.java
    │   │   │   │               └── PhotoEntity.java
    │   │   │   │           └── db
    │   │   │   │               ├── migrations
    │   │   │   │                   ├── CreatePhotosTable.java
    │   │   │   │                   └── Migration.java
    │   │   │   │               ├── DatabaseHelper.java
    │   │   │   │               └── DatabaseManager.java
    │   │   └── AndroidManifest.xml
    │   ├── androidTest
    │   │   ├── java
    │   │   │   └── com
    │   │   │   │   └── photoviewer
    │   │   │   │       ├── di
    │   │   │   │           └── TestsModule.java
    │   │   │   │       ├── test
    │   │   │   │           └── CucumberTestCase.java
    │   │   │   │       ├── steps
    │   │   │   │           └── PhotosListSteps.java
    │   │   │   │       ├── cucumber
    │   │   │   │           └── CucumberTestRunner.java
    │   │   │   │       ├── pages
    │   │   │   │           └── PhotosListPage.java
    │   │   │   │       └── common
    │   │   │   │           └── steps
    │   │   │   │               └── PageObject.java
    │   │   └── assets
    │   │   │   └── features
    │   │   │       └── photosList.feature
    │   └── test
    │   │   └── java
    │   │       └── com
    │   │           └── photoviewer
    │   │               ├── domain
    │   │                   └── usecases
    │   │                   │   ├── GetPhotosListTest.kt
    │   │                   │   ├── GetPhotoDetailsTest.kt
    │   │                   │   └── SearchByTitleTest.kt
    │   │               └── data
    │   │                   └── repository
    │   │                       └── PhotoEntityDataSourceTest.kt
    ├── proguard-rules.pro
    └── build.gradle
├── settings.gradle
├── gradle
    └── wrapper
    │   ├── gradle-wrapper.jar
    │   └── gradle-wrapper.properties
├── .gitignore
├── gradle.properties
├── README.md
├── gradlew.bat
├── gradlew
└── LICENSE


/app/.gitignore:
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1 | /build
2 | 


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/settings.gradle:
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1 | include ':app'
2 | 


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/gradle/wrapper/gradle-wrapper.jar:
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https://raw.githubusercontent.com/lifedemons/photoviewer/HEAD/gradle/wrapper/gradle-wrapper.jar


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/app/src/main/res/mipmap-hdpi/ic_launcher.png:
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https://raw.githubusercontent.com/lifedemons/photoviewer/HEAD/app/src/main/res/mipmap-hdpi/ic_launcher.png


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/app/src/main/res/mipmap-mdpi/ic_launcher.png:
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/app/src/main/res/mipmap-xhdpi/ic_launcher.png:
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https://raw.githubusercontent.com/lifedemons/photoviewer/HEAD/app/src/main/res/mipmap-xhdpi/ic_launcher.png


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/app/src/main/res/mipmap-xxhdpi/ic_launcher.png:
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/app/src/main/res/drawable-hdpi/ic_sort_white_asc.png:
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/app/src/main/res/drawable-mdpi/ic_sort_white_asc.png:
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/app/src/main/res/drawable-hdpi/ic_sort_white_desc.png:
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https://raw.githubusercontent.com/lifedemons/photoviewer/HEAD/app/src/main/res/drawable-hdpi/ic_sort_white_desc.png


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/app/src/main/res/drawable-mdpi/ic_sort_white_desc.png:
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/app/src/main/res/drawable-xhdpi/ic_sort_white_asc.png:
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/app/src/main/res/drawable-xhdpi/ic_sort_white_desc.png:
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/app/src/main/res/drawable-xxhdpi/ic_sort_white_asc.png:
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/app/src/main/res/drawable-xxhdpi/ic_sort_white_desc.png:
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/app/src/main/res/drawable-xxxhdpi/ic_sort_white_asc.png:
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/app/src/main/res/drawable-hdpi/ic_crop_original_black.png:
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/app/src/main/res/drawable-hdpi/ic_error_outline_black.png:
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/app/src/main/res/drawable-mdpi/ic_crop_original_black.png:
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/app/src/main/res/drawable-mdpi/ic_error_outline_black.png:
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/app/src/main/res/drawable-xxxhdpi/ic_sort_white_desc.png:
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/app/src/main/res/drawable-xhdpi/ic_crop_original_black.png:
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/app/src/main/res/drawable-xhdpi/ic_error_outline_black.png:
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/app/src/main/res/drawable-xxhdpi/ic_crop_original_black.png:
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https://raw.githubusercontent.com/lifedemons/photoviewer/HEAD/app/src/main/res/drawable-xxhdpi/ic_crop_original_black.png


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/app/src/main/res/drawable-xxhdpi/ic_error_outline_black.png:
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https://raw.githubusercontent.com/lifedemons/photoviewer/HEAD/app/src/main/res/drawable-xxhdpi/ic_error_outline_black.png


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/app/src/main/res/drawable-xxxhdpi/ic_crop_original_black.png:
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/app/src/main/res/drawable-xxxhdpi/ic_error_outline_black.png:
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https://raw.githubusercontent.com/lifedemons/photoviewer/HEAD/app/src/main/res/drawable-xxxhdpi/ic_error_outline_black.png


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/app/src/main/java/com/photoviewer/presentation/di/modules/IntegrationTestsStaticModule.java:
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1 | package com.photoviewer.presentation.di.modules;
2 | 
3 | import dagger.Module;
4 | 
5 | @Module(library = true, complete = false) public class IntegrationTestsStaticModule {
6 | }
7 | 


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/app/src/main/java/com/photoviewer/domain/mapper/LayerDataTransformer.java:
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1 | package com.photoviewer.domain.mapper;
2 | 
3 | import java.util.Collection;
4 | 
5 | public interface LayerDataTransformer<F, T> {
6 |     T transform(F from);
7 |     Collection<T> transform(Collection<F> from);
8 | }
9 | 


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/gradle/wrapper/gradle-wrapper.properties:
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1 | #Sun May 21 03:42:21 CEST 2017
2 | distributionBase=GRADLE_USER_HOME
3 | distributionPath=wrapper/dists
4 | zipStoreBase=GRADLE_USER_HOME
5 | zipStorePath=wrapper/dists
6 | distributionUrl=https\://services.gradle.org/distributions/gradle-3.3-all.zip
7 | 


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/app/src/main/res/drawable/sort_toggle_state_drawable.xml:
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1 | <?xml version="1.0" encoding="utf-8"?>
2 | <selector xmlns:android="http://schemas.android.com/apk/res/android"
3 |     android:constantSize="true">
4 |     <item android:state_checked="true"
5 |         android:drawable="@drawable/ic_sort_white_desc"/>
6 |     <item
7 |         android:drawable="@drawable/ic_sort_white_asc"/>
8 | </selector>


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/app/src/androidTest/java/com/photoviewer/di/TestsModule.java:
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 1 | package com.photoviewer.di;
 2 | 
 3 | import com.photoviewer.common.steps.PageObject;
 4 | import com.photoviewer.pages.PhotosListPage;
 5 | import com.photoviewer.presentation.di.modules.AppModule;
 6 | import dagger.Module;
 7 | 
 8 | @Module(injects = { PageObject.class, PhotosListPage.class }, addsTo = AppModule.class)
 9 | public class TestsModule {
10 | }
11 | 


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/app/src/main/res/values/colors.xml:
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 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <resources>
 3 |     <color name="indigo">#3F51B5</color>
 4 |     <color name="dark_indigo">#303F9F</color>
 5 |     <color name="pink">#FF4081</color>
 6 | 
 7 |     <color name="text_primary_dark">#DE000000</color>
 8 |     <color name="text_secondary_dark">#8A000000</color>
 9 |     <color name="text_hint_dark">#42000000</color>
10 | </resources>


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/app/src/main/java/com/photoviewer/domain/PhotoStatistics.java:
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 1 | package com.photoviewer.domain;
 2 | 
 3 | import lombok.Getter;
 4 | import lombok.Setter;
 5 | import lombok.experimental.Accessors;
 6 | 
 7 | @Accessors(prefix = "m")
 8 | public class PhotoStatistics {
 9 | 
10 |     @Setter
11 |     @Getter
12 |     private Photo mLastOpenedPhoto;
13 | 
14 |     @Setter
15 |     @Getter
16 |     private int mOpenedPhotosCount;
17 | }


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/app/src/main/res/layout/view_progress.xml:
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 1 | <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
 2 |     android:id="@+id/progress_layout"
 3 |     android:layout_width="match_parent"
 4 |     android:layout_height="match_parent"
 5 |     android:visibility="gone">
 6 | 
 7 |   <ProgressBar
 8 |       style="@style/AppTheme.ProgressBar"
 9 |       android:layout_centerInParent="true"/>
10 | 
11 | </RelativeLayout>
12 | 


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/app/src/main/res/layout/view_retry.xml:
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 1 | <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
 2 |     android:id="@+id/retry_layout"
 3 |     android:layout_width="match_parent"
 4 |     android:layout_height="match_parent"
 5 |     android:visibility="gone">
 6 | 
 7 |   <Button
 8 |       android:id="@+id/retry_button"
 9 |       style="@style/AppTheme.Button"
10 |       android:text="@string/btn_text_retry"/>
11 | 
12 | </RelativeLayout>
13 | 


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/app/src/main/res/layout/activity_photo_details.xml:
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 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3 |     android:layout_width="match_parent"
 4 |     android:layout_height="match_parent">
 5 | 
 6 |   <include
 7 |       layout="@layout/view_photo_details"/>
 8 | 
 9 |   <include
10 |       layout="@layout/view_progress"/>
11 | 
12 |   <include
13 |       layout="@layout/view_retry"/>
14 | 
15 | </RelativeLayout>


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/app/src/main/res/drawable/selector_item_photo.xml:
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1 | <?xml version="1.0" encoding="utf-8"?>
2 | <selector xmlns:android="http://schemas.android.com/apk/res/android">
3 |   <item android:drawable="@android:color/holo_blue_light" android:state_focused="true" />
4 |   <item android:drawable="@android:color/holo_blue_light" android:state_pressed="true" />
5 |   <item android:drawable="@android:color/holo_blue_light" android:state_selected="true" />
6 |   <item android:drawable="@android:color/background_light" />
7 | </selector>


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/app/src/main/java/com/photoviewer/domain/Photo.java:
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 1 | package com.photoviewer.domain;
 2 | 
 3 | import lombok.Getter;
 4 | import lombok.Setter;
 5 | import lombok.experimental.Accessors;
 6 | 
 7 | @Accessors(prefix = "m")
 8 | public class Photo {
 9 | 
10 |     @Getter
11 |     @Setter
12 |     private int mId;
13 | 
14 |     @Getter
15 |     @Setter
16 |     private String mTitle;
17 | 
18 |     @Getter
19 |     @Setter
20 |     private String mUrl;
21 | 
22 |     @Getter
23 |     @Setter
24 |     private String mThumbnailUrl;
25 | }
26 | 


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/app/src/androidTest/assets/features/photosList.feature:
--------------------------------------------------------------------------------
 1 | Feature: Browse Photos List
 2 | 
 3 |   Background:
 4 |     Given User opens Photos List
 5 | 
 6 |   @ScenarioId("FUNCTIONAL.LIST.001") @functional-scenarios
 7 |   Scenario: User can browse list
 8 |     Then User sees photo with title "a at voluptatem"
 9 | 
10 |   @ScenarioId("FUNCTIONAL.LIST.002") @functional-scenarios
11 |   Scenario: User can search for certain photo by title
12 |     When User searches for photo with title "a ea culpa eius"
13 |     Then User sees photo with title "a ea culpa eius"


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/data/preferences/orm/PreferenceFile.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.data.preferences.orm;
 2 | 
 3 | import java.lang.annotation.ElementType;
 4 | import java.lang.annotation.Retention;
 5 | import java.lang.annotation.RetentionPolicy;
 6 | import java.lang.annotation.Target;
 7 | 
 8 | @Retention(RetentionPolicy.RUNTIME)
 9 | @Target(ElementType.TYPE)
10 | public @interface PreferenceFile {
11 | 
12 |     /**
13 |      * @return the desired name of the field when it is serialized
14 |      */
15 |     String name();
16 | }
17 | 
18 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/presentation/model/PhotoModel.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.presentation.model;
 2 | 
 3 | import lombok.Getter;
 4 | import lombok.Setter;
 5 | import lombok.experimental.Accessors;
 6 | 
 7 | @Accessors(prefix = "m")
 8 | public class PhotoModel {
 9 | 
10 |     @Getter
11 |     @Setter
12 |     private int mId;
13 | 
14 |     @Getter
15 |     @Setter
16 |     private String mTitle;
17 | 
18 |     @Getter
19 |     @Setter
20 |     private String mUrl;
21 | 
22 |     @Getter
23 |     @Setter
24 |     private String mThumbnailUrl;
25 | }
26 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/presentation/di/modules/DiActivityModule.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.presentation.di.modules;
 2 | 
 3 | import com.photoviewer.presentation.view.activity.DiAppCompatActivity;
 4 | import com.photoviewer.presentation.view.activity.PhotoDetailsActivity;
 5 | import com.photoviewer.presentation.view.activity.PhotosListActivity;
 6 | import dagger.Module;
 7 | 
 8 | @Module(injects = {
 9 |     DiAppCompatActivity.class, PhotosListActivity.class, PhotoDetailsActivity.class
10 | }, addsTo = AppModule.class) public class DiActivityModule {
11 | }
12 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/presentation/model/PhotoStatisticsModel.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.presentation.model;
 2 | 
 3 | import lombok.Getter;
 4 | import lombok.Setter;
 5 | import lombok.experimental.Accessors;
 6 | 
 7 | @Accessors(prefix = "m")
 8 | public class PhotoStatisticsModel {
 9 | 
10 |     @Setter
11 |     @Getter
12 |     private PhotoModel mLastOpenedPhotoModel;
13 | 
14 |     @Setter
15 |     @Getter
16 |     private int mOpenedPhotosCount;
17 | 
18 |     public void incOpenedPhotosCount() {
19 |         mOpenedPhotosCount++;
20 |     }
21 | }
22 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/data/network/PhotoRestService.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.data.network;
 2 | 
 3 | import com.photoviewer.data.entity.PhotoEntity;
 4 | 
 5 | import java.util.List;
 6 | 
 7 | import retrofit2.http.GET;
 8 | import rx.Observable;
 9 | 
10 | /**
11 |  * RestApi for retrieving data from the network.
12 |  */
13 | public interface PhotoRestService {
14 | 
15 |     /**
16 |      * Retrieves an {@link rx.Observable} which will emit a List of {@link PhotoEntity}.
17 |      */
18 |     @GET("/photos")
19 |     Observable<List<PhotoEntity>> photoEntityList();
20 | }
21 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/presentation/view/PhotoDetailsView.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.presentation.view;
 2 | 
 3 | import com.photoviewer.presentation.model.PhotoModel;
 4 | 
 5 | /**
 6 |  * Interface representing a View in a model view presenter (MVP) pattern.
 7 |  * In this case is used as a view representing a photo profile.
 8 |  */
 9 | public interface PhotoDetailsView extends LoadDataView {
10 |   /**
11 |    * Render a photo in the UI.
12 |    *
13 |    * @param photo The {@link PhotoModel} that will be shown.
14 |    */
15 |   void renderPhoto(PhotoModel photo);
16 | }
17 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/domain/usecases/SimpleSubscriber.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.domain.usecases;
 2 | 
 3 | /**
 4 |  * Default subscriber base class to be used whenever you want default error handling.
 5 |  */
 6 | public class SimpleSubscriber<T> extends rx.Subscriber<T> {
 7 |     @Override
 8 |     public void onCompleted() {
 9 |         // no-op by default.
10 |     }
11 | 
12 |     @Override
13 |     public void onError(Throwable e) {
14 |         // no-op by default.
15 |     }
16 | 
17 |     @Override
18 |     public void onNext(T t) {
19 |         // no-op by default.
20 |     }
21 | }
22 | 


--------------------------------------------------------------------------------
/app/src/main/res/layout/menu_item_sort.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <FrameLayout
 3 |     xmlns:android="http://schemas.android.com/apk/res/android"
 4 |     android:layout_width="wrap_content"
 5 |     android:layout_height="wrap_content">
 6 |     <CheckBox
 7 |         android:id="@+id/sort_toggle_button"
 8 |         android:layout_width="wrap_content"
 9 |         android:layout_height="wrap_content"
10 |         android:button="@android:color/transparent"
11 |         android:layout_gravity="center_vertical|start"
12 |         android:background="@drawable/sort_toggle_state_drawable"/>
13 | </FrameLayout>


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/domain/mapper/BaseLayerDataTransformer.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.domain.mapper;
 2 | 
 3 | import java.util.ArrayList;
 4 | import java.util.Collection;
 5 | import java.util.List;
 6 | 
 7 | public abstract class BaseLayerDataTransformer<F, T> implements LayerDataTransformer<F, T> {
 8 | 
 9 |     @Override
10 |     public List<T> transform(Collection<F> from) {
11 |         List<T> transformed = new ArrayList<>(from.size());
12 | 
13 |         for (F fromObject : from) {
14 |             transformed.add(transform(fromObject));
15 |         }
16 | 
17 |         return transformed;
18 |     }
19 | }
20 | 


--------------------------------------------------------------------------------
/app/src/main/res/menu/photos_list.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <menu xmlns:android="http://schemas.android.com/apk/res/android"
 3 |     xmlns:appcompat="http://schemas.android.com/apk/res-auto">
 4 | 
 5 |     <item
 6 |         android:id="@+id/menu_search"
 7 |         android:title="@string/menu_search"
 8 |         appcompat:actionViewClass="android.support.v7.widget.SearchView"
 9 |         appcompat:showAsAction="always"/>
10 | 
11 |     <item
12 |         android:id="@+id/menu_sort"
13 |         android:title="@string/menu_sort"
14 |         appcompat:actionLayout="@layout/menu_item_sort"
15 |         appcompat:showAsAction="always"/>
16 | 
17 | </menu>


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/domain/repository/PhotoStatisticsRepository.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.domain.repository;
 2 | 
 3 | import com.photoviewer.data.entity.PhotoStatisticsEntity;
 4 | 
 5 | import rx.Observable;
 6 | 
 7 | public interface PhotoStatisticsRepository {
 8 |     /**
 9 |      * Get an {@link rx.Observable} which will emit {@link PhotoStatisticsEntity}.
10 |      */
11 |     Observable<PhotoStatisticsEntity> readStatistics();
12 | 
13 |     /**
14 |      * Get an {@link rx.Observable} which will emit {@link PhotoStatisticsEntity}.
15 |      */
16 |     Observable<PhotoStatisticsEntity> updateStatistics(PhotoStatisticsEntity photoStatisticsEntity);
17 | }
18 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/presentation/PhotoViewerApplication.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.presentation;
 2 | 
 3 | import android.app.Application;
 4 | import com.photoviewer.presentation.di.modules.AppModule;
 5 | import dagger.ObjectGraph;
 6 | 
 7 | public class PhotoViewerApplication extends Application {
 8 | 
 9 |     @Override
10 |     public void onCreate() {
11 |         super.onCreate();
12 |         sObjectGraph = ObjectGraph.create(new AppModule(this));
13 |     }
14 | 
15 |     private static ObjectGraph sObjectGraph;
16 | 
17 |     public static ObjectGraph getScopedGraph(Object... modules) {
18 |         return sObjectGraph.plus(modules);
19 |     }
20 | }
21 | 


--------------------------------------------------------------------------------
/app/src/main/res/layout/view_photo_details.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3 |     android:orientation="vertical"
 4 |     android:layout_width="match_parent"
 5 |     android:layout_height="match_parent">
 6 | 
 7 |   <ImageView
 8 |       android:id="@+id/cover_image_view"
 9 |       android:layout_width="match_parent"
10 |       android:layout_height="wrap_content"
11 |       android:adjustViewBounds="true"
12 |       android:background="@android:color/transparent"/>
13 | 
14 |   <TextView
15 |       android:id="@+id/title_text_view"
16 |       style="@style/AppTheme.TextViewHeader"/>
17 | 
18 | </LinearLayout>


--------------------------------------------------------------------------------
/.gitignore:
--------------------------------------------------------------------------------
 1 | # built application files
 2 | *.apk
 3 | *.ap_
 4 | local.properties
 5 | ant.properties
 6 | hockeyapp/local.properties
 7 | 
 8 | # files for the dex VM
 9 | *.dex
10 | 
11 | # Java class files
12 | *.class
13 | classes/
14 | 
15 | # generated files
16 | avds/
17 | bin/
18 | build/
19 | gen/
20 | tmp/
21 | log/**/*
22 | log
23 | .settings
24 | lint.xml
25 | .DS_Store
26 | test/.DS_Store
27 | out/
28 | 
29 | # InteliJ idea
30 | .idea/
31 | *.iml
32 | 
33 | # Robolectric tests
34 | test/robolectric/tmp/
35 | test/robolectric/emma/
36 | test/robolectric/.gradle/**/*
37 | .gradle/**/*
38 | 
39 | # Android tests
40 | test/android/coverage
41 | target/
42 | project.properties
43 | gen-external-apklibs/
44 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/data/preferences/orm/Preference.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.data.preferences.orm;
 2 | 
 3 | import java.lang.annotation.ElementType;
 4 | import java.lang.annotation.Retention;
 5 | import java.lang.annotation.RetentionPolicy;
 6 | import java.lang.annotation.Target;
 7 | 
 8 | 
 9 | @Retention(RetentionPolicy.RUNTIME)
10 | @Target(ElementType.FIELD)
11 | public @interface Preference {
12 | 
13 |     /**
14 |      * @return the desired name of the field when it is serialized
15 |      */
16 |     String name() default "";
17 |     /**
18 |      * @return the state of the field serialization - false - if it will not be serialized
19 |      */
20 |     boolean enabled() default true;
21 | }
22 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/data/repository/datastore/ServerPhotoEntityStore.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.data.repository.datastore;
 2 | 
 3 | import com.photoviewer.data.entity.PhotoEntity;
 4 | 
 5 | import com.photoviewer.data.network.PhotoRestService;
 6 | import java.util.List;
 7 | 
 8 | import javax.inject.Inject;
 9 | import rx.Observable;
10 | 
11 | public class ServerPhotoEntityStore {
12 | 
13 |     private final PhotoRestService mService;
14 | 
15 |     @Inject
16 |     public ServerPhotoEntityStore(PhotoRestService service) {
17 |         mService = service;
18 |     }
19 | 
20 |     public Observable<List<PhotoEntity>> photoEntityList() {
21 |         return mService.photoEntityList();
22 |     }
23 | }
24 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/data/entity/PhotoStatisticsEntity.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.data.entity;
 2 | 
 3 | import com.photoviewer.data.preferences.orm.Preference;
 4 | import com.photoviewer.data.preferences.orm.PreferenceFile;
 5 | 
 6 | import lombok.Getter;
 7 | import lombok.Setter;
 8 | import lombok.experimental.Accessors;
 9 | 
10 | @Accessors(prefix = "m")
11 | @PreferenceFile(name = "photos_opening_statistics")
12 | public class PhotoStatisticsEntity {
13 | 
14 |     @Setter
15 |     @Getter
16 |     @Preference(name = "last_opened_photo_id")
17 |     private int mLastOpenedPhotoId;
18 | 
19 |     @Setter
20 |     @Getter
21 |     @Preference(name = "opened_photos_count")
22 |     private int mOpenedPhotosCount;
23 | }
24 | 


--------------------------------------------------------------------------------
/app/proguard-rules.pro:
--------------------------------------------------------------------------------
 1 | # Add project specific ProGuard rules here.
 2 | # By default, the flags in this file are appended to flags specified
 3 | # in C:\Users\Diogo\AppData\Local\Android\sdk/tools/proguard/proguard-android.txt
 4 | # You can edit the include path and order by changing the proguardFiles
 5 | # directive in build.gradle.
 6 | #
 7 | # For more details, see
 8 | #   http://developer.android.com/guide/developing/tools/proguard.html
 9 | 
10 | # Add any project specific keep options here:
11 | 
12 | # If your project uses WebView with JS, uncomment the following
13 | # and specify the fully qualified class name to the JavaScript interface
14 | # class:
15 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview {
16 | #   public *;
17 | #}
18 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/domain/mapper/photo/PhotoEntityToPhoto.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.domain.mapper.photo;
 2 | 
 3 | import com.photoviewer.data.entity.PhotoEntity;
 4 | import com.photoviewer.domain.Photo;
 5 | import com.photoviewer.domain.mapper.BaseLayerDataTransformer;
 6 | 
 7 | public class PhotoEntityToPhoto extends BaseLayerDataTransformer<PhotoEntity, Photo> {
 8 |     @Override
 9 |     public Photo transform(PhotoEntity from) {
10 |         Photo transformed = new Photo();
11 | 
12 |         transformed.setId(from.getId());
13 |         transformed.setTitle(from.getTitle());
14 |         transformed.setUrl(from.getUrl());
15 |         transformed.setThumbnailUrl(from.getThumbnailUrl());
16 | 
17 |         return transformed;
18 |     }
19 | }
20 | 


--------------------------------------------------------------------------------
/app/src/main/res/layout-land/view_photo_details.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3 |     android:orientation="horizontal"
 4 |     android:layout_width="match_parent"
 5 |     android:layout_height="match_parent">
 6 | 
 7 |     <ImageView
 8 |         android:id="@+id/cover_image_view"
 9 |         android:layout_width="wrap_content"
10 |         android:layout_height="match_parent"
11 |         android:adjustViewBounds="true"
12 |         android:background="@android:color/transparent"/>
13 | 
14 |     <TextView
15 |         android:id="@+id/title_text_view"
16 |         android:layout_gravity="center_vertical"
17 |         style="@style/AppTheme.TextViewHeader"/>
18 | 
19 | </LinearLayout>


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/presentation/mapper/photo/PhotoModelToPhoto.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.presentation.mapper.photo;
 2 | 
 3 | import com.photoviewer.domain.Photo;
 4 | import com.photoviewer.domain.mapper.BaseLayerDataTransformer;
 5 | import com.photoviewer.presentation.model.PhotoModel;
 6 | 
 7 | public class PhotoModelToPhoto extends BaseLayerDataTransformer<PhotoModel, Photo> {
 8 |     @Override
 9 |     public Photo transform(PhotoModel from) {
10 |         Photo transformed = new Photo();
11 | 
12 |         transformed.setId(from.getId());
13 |         transformed.setTitle(from.getTitle());
14 |         transformed.setThumbnailUrl(from.getThumbnailUrl());
15 |         transformed.setUrl(from.getUrl());
16 | 
17 |         return transformed;
18 |     }
19 | }
20 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/presentation/mapper/photo/PhotoToPhotoModel.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.presentation.mapper.photo;
 2 | 
 3 | import com.photoviewer.domain.Photo;
 4 | import com.photoviewer.presentation.model.PhotoModel;
 5 | import com.photoviewer.domain.mapper.BaseLayerDataTransformer;
 6 | 
 7 | public class PhotoToPhotoModel extends BaseLayerDataTransformer<Photo, PhotoModel> {
 8 |     @Override
 9 |     public PhotoModel transform(Photo from) {
10 |         PhotoModel transformed = new PhotoModel();
11 | 
12 |         transformed.setId(from.getId());
13 |         transformed.setTitle(from.getTitle());
14 |         transformed.setUrl(from.getUrl());
15 |         transformed.setThumbnailUrl(from.getThumbnailUrl());
16 | 
17 |         return transformed;
18 |     }
19 | }


--------------------------------------------------------------------------------
/app/src/main/res/values/dimens.xml:
--------------------------------------------------------------------------------
 1 | <resources>
 2 |     <!-- Default screen margins, per the Android Design guidelines. -->
 3 |     <dimen name="activity_horizontal_margin">16dp</dimen>
 4 |     <dimen name="activity_vertical_margin">16dp</dimen>
 5 | 
 6 |     <!--User Header stuff-->
 7 |     <dimen name="header_text_size">26sp</dimen>
 8 |     <dimen name="header_margin">5dp</dimen>
 9 |     <dimen name="image_view_cover_height">140dp</dimen>
10 | 
11 |     <!--Listview rows stuff-->
12 |     <dimen name="list_view_row_padding">5dp</dimen>
13 |     <dimen name="list_view_row_text_size">18sp</dimen>
14 |     <dimen name="list_view_row_icon_rounding_radius">10dp</dimen>
15 |     <dimen name="list_view_row_icon_width">70dp</dimen>
16 |     <dimen name="list_view_row_icon_padding">5dp</dimen>
17 | </resources>
18 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/presentation/view/activity/DiAppCompatActivity.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.presentation.view.activity;
 2 | 
 3 | import android.os.Bundle;
 4 | import android.support.v7.app.AppCompatActivity;
 5 | import butterknife.ButterKnife;
 6 | import com.photoviewer.presentation.PhotoViewerApplication;
 7 | import com.photoviewer.presentation.di.modules.DiActivityModule;
 8 | 
 9 | public class DiAppCompatActivity extends AppCompatActivity {
10 | 
11 |   @Override protected void onCreate(Bundle savedInstanceState) {
12 |     PhotoViewerApplication.getScopedGraph(new DiActivityModule()).inject(this);
13 |     super.onCreate(savedInstanceState);
14 |   }
15 | 
16 |   @Override public void onContentChanged() {
17 |     super.onContentChanged();
18 |     ButterKnife.bind(this);
19 |   }
20 | }
21 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/presentation/di/modules/AppModule.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.presentation.di.modules;
 2 | 
 3 | import android.content.Context;
 4 | import android.content.res.Resources;
 5 | import dagger.Module;
 6 | import dagger.Provides;
 7 | import javax.inject.Singleton;
 8 | 
 9 | @Module(library = true, includes = {
10 |     ApiModule.class, DataModule.class, UseCasesModule.class, RxModule.class,
11 |     IntegrationTestsStaticModule.class
12 | }) public class AppModule {
13 |   private Context mContext;
14 | 
15 |   public AppModule(Context context) {
16 |     mContext = context;
17 |   }
18 | 
19 |   @Provides Context providesApplicationContext() {
20 |     return mContext;
21 |   }
22 | 
23 |   @Provides @Singleton Resources getApplicationResources() {
24 |     return mContext.getResources();
25 |   }
26 | }
27 | 


--------------------------------------------------------------------------------
/app/src/androidTest/java/com/photoviewer/test/CucumberTestCase.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.test;
 2 | 
 3 | import com.photoviewer.BuildConfig;
 4 | import cucumber.api.CucumberOptions;
 5 | 
 6 | @CucumberOptions(features = "features", // Scenarios
 7 |     glue = { "com.photoviewer.steps" }, // Steps
 8 |     format = {
 9 |         "pretty", // Cucumber report formats and location to store them on device
10 |         "html:" + CucumberTestCase.REPORTS_PATH + "cucumber-html-report",
11 |         "json:" + CucumberTestCase.REPORTS_PATH + "cucumber.json",
12 |         "junit:" + CucumberTestCase.REPORTS_PATH + "cucumber.xml"
13 |     },
14 |     tags = { "@functional-scenarios" })
15 | class CucumberTestCase {
16 |   public static final String REPORTS_PATH =
17 |       "/data/data/" + BuildConfig.APPLICATION_ID + "/cucumber-reports/";
18 | }
19 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/data/db/migrations/CreatePhotosTable.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.data.db.migrations;
 2 | 
 3 | 
 4 | import android.database.sqlite.SQLiteDatabase;
 5 | import android.util.Log;
 6 | 
 7 | import com.j256.ormlite.support.ConnectionSource;
 8 | import com.j256.ormlite.table.TableUtils;
 9 | import com.photoviewer.data.entity.PhotoEntity;
10 | import com.photoviewer.data.db.DatabaseManager;
11 | 
12 | import java.sql.SQLException;
13 | 
14 | public class CreatePhotosTable extends Migration {
15 |     @Override
16 |     public void up(SQLiteDatabase db, ConnectionSource connectionSource) {
17 |         try {
18 |             TableUtils.createTable(connectionSource, PhotoEntity.class);
19 |         } catch (SQLException e) {
20 |             Log.wtf(DatabaseManager.LOG_TAG_DB, "Creation of PhotosTable failed", e);
21 |         }
22 |     }
23 | }
24 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/presentation/navigation/Navigator.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.presentation.navigation;
 2 | 
 3 | import android.content.Context;
 4 | import android.content.Intent;
 5 | 
 6 | import com.photoviewer.presentation.view.activity.PhotoDetailsActivity;
 7 | import javax.inject.Inject;
 8 | 
 9 | /**
10 |  * Class used to navigate through the application.
11 |  */
12 | public class Navigator {
13 | 
14 |   @Inject public Navigator() {}
15 | 
16 |   /**
17 |    * Goes to the photo details screen.
18 |    *
19 |    * @param context A Context needed to open the activity.
20 |    */
21 |   public void navigateToPhotoDetails(Context context, int photoId) {
22 |     if (context != null) {
23 |       Intent intentToLaunch = PhotoDetailsActivity.getCallingIntent(context, photoId);
24 |       context.startActivity(intentToLaunch);
25 |     }
26 |   }
27 | }
28 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/presentation/presenter/SimplePresenter.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.presentation.presenter;
 2 | 
 3 | /**
 4 |  * Empty Presenter class to be used whenever you want to implement only some methods.
 5 |  */
 6 | public class SimplePresenter implements Presenter {
 7 | 
 8 |     @Override
 9 |     public void create() {
10 |         // no-op by default.
11 |     }
12 | 
13 |     @Override
14 |     public void start() {
15 |         // no-op by default.
16 |     }
17 | 
18 |     @Override
19 |     public void resume() {
20 |         // no-op by default.
21 |     }
22 | 
23 |     @Override
24 |     public void pause() {
25 |         // no-op by default.
26 |     }
27 | 
28 |     @Override
29 |     public void stop() {
30 |         // no-op by default.
31 |     }
32 | 
33 |     @Override
34 |     public void destroy() {
35 |         // no-op by default.
36 |     }
37 | }
38 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/presentation/di/modules/DataModule.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.presentation.di.modules;
 2 | 
 3 | import com.photoviewer.data.repository.PhotoEntityDataSource;
 4 | import com.photoviewer.data.repository.PhotoStatisticsEntityDataSource;
 5 | import com.photoviewer.domain.repository.PhotoRepository;
 6 | import com.photoviewer.domain.repository.PhotoStatisticsRepository;
 7 | import dagger.Module;
 8 | import dagger.Provides;
 9 | import javax.inject.Singleton;
10 | 
11 | @Module(library = true, complete = false) public class DataModule {
12 | 
13 |   @Provides @Singleton
14 |   public PhotoRepository providesPhotoRepository(PhotoEntityDataSource repository) {
15 |     return repository;
16 |   }
17 | 
18 |   @Provides @Singleton public PhotoStatisticsRepository providesPhotoStatisticsRepository(
19 |       PhotoStatisticsEntityDataSource repository) {
20 |     return repository;
21 |   }
22 | }
23 | 


--------------------------------------------------------------------------------
/gradle.properties:
--------------------------------------------------------------------------------
 1 | # Project-wide Gradle settings.
 2 | 
 3 | # IDE (e.g. Android Studio) users:
 4 | # Gradle settings configured through the IDE *will override*
 5 | # any settings specified in this file.
 6 | 
 7 | # For more details on how to configure your build environment visit
 8 | # http://www.gradle.org/docs/current/userguide/build_environment.html
 9 | 
10 | # Specifies the JVM arguments used for the daemon process.
11 | # The setting is particularly useful for tweaking memory settings.
12 | # Default value: -Xmx10248m -XX:MaxPermSize=256m
13 | # org.gradle.jvmargs=-Xmx2048m -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
14 | 
15 | # When configured, Gradle will run in incubating parallel mode.
16 | # This option should only be used with decoupled projects. More details, visit
17 | # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
18 | # org.gradle.parallel=true


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/presentation/di/modules/UseCasesModule.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.presentation.di.modules;
 2 | 
 3 | import dagger.Module;
 4 | 
 5 | @Module(library = true, complete = false) public class UseCasesModule {
 6 | //  @Provides @Singleton GetPhotoDetails providesGetPhotoDetails(GetPhotoDetails useCase) {
 7 | //    return useCase;
 8 | //  }
 9 | //
10 | //  @Provides @Singleton GetPhotosList providesGetPhotosList(GetPhotosList useCase) {
11 | //    return useCase;
12 | //  }
13 | //
14 | //  @Provides @Singleton GetPhotoStatistics providesGetPhotoStatistics(GetPhotoStatistics useCase) {
15 | //    return useCase;
16 | //  }
17 | //
18 | //  @Provides @Singleton SavePhotoStatistics providesSavePhotoStatistics(
19 | //      SavePhotoStatistics useCase) {
20 | //    return useCase;
21 | //  }
22 | //
23 | //  @Provides @Singleton SearchByTitle providesSearchByTitle(SearchByTitle useCase) {
24 | //    return useCase;
25 | //  }
26 | }
27 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | # Photo Viewer Sample
 2 | This is the sample of Clean Architecture in Real Conditions
 3 | 
 4 | This project has been influenced by:
 5 | 
 6 | **1. Uncle Bob**
 7 | 
 8 | (http://blog.8thlight.com/uncle-bob/2012/08/13/the-clean-architecture.html)
 9 | 
10 | **2. Fernando Cejas**
11 | 
12 | (http://fernandocejas.com/2015/07/18/architecting-android-the-evolution/)
13 | 
14 | **Technical stack:**
15 | 
16 | ***Languages:*** Java/Kotlin(for Unit tests)
17 | 
18 | ***DI:*** Dagger/Butterknife
19 | 
20 | ***Persistency:*** DB: ORMLite, Preferences: Own PreferenceDAO 
21 | 
22 | ***Networking:*** Retrofit, Picasso, OkHttp
23 | 
24 | ***Asynchronous programming:*** RxJava
25 | 
26 | ***UI:*** Design Support Library, AppCompat, RecyclerView
27 | 
28 | ***Cool sources:*** Retrolambda, Lombok
29 | 
30 | ***Unit Testing:*** Mockito
31 | 
32 | ***Functional testing:*** Cucumber + PageObject via Espresso
33 | 
34 | **2. Next steps:**
35 | 
36 | a. Integrate with Flickr + more functions
37 | 


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/app/src/main/java/com/photoviewer/domain/mapper/photostatisctics/PhotoStatisticsToPhotoStatisticsEntity.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.domain.mapper.photostatisctics;
 2 | 
 3 | import com.photoviewer.data.entity.PhotoStatisticsEntity;
 4 | import com.photoviewer.domain.Photo;
 5 | import com.photoviewer.domain.PhotoStatistics;
 6 | import com.photoviewer.domain.mapper.BaseLayerDataTransformer;
 7 | 
 8 | public class PhotoStatisticsToPhotoStatisticsEntity extends BaseLayerDataTransformer<PhotoStatistics, PhotoStatisticsEntity> {
 9 |     @Override
10 |     public PhotoStatisticsEntity transform(PhotoStatistics from) {
11 |         PhotoStatisticsEntity transformed = new PhotoStatisticsEntity();
12 | 
13 |         Photo lastOpenedPhoto = from.getLastOpenedPhoto();
14 |         transformed.setLastOpenedPhotoId(lastOpenedPhoto != null ? lastOpenedPhoto.getId() : 0);
15 |         transformed.setOpenedPhotosCount(from.getOpenedPhotosCount());
16 | 
17 |         return transformed;
18 |     }
19 | }
20 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/data/repository/PhotoStatisticsEntityDataSource.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.data.repository;
 2 | 
 3 | import com.photoviewer.data.entity.PhotoStatisticsEntity;
 4 | import com.photoviewer.data.repository.datastore.PreferencesPhotoStatisticsEntityStore;
 5 | import com.photoviewer.domain.repository.PhotoStatisticsRepository;
 6 | 
 7 | import javax.inject.Inject;
 8 | import rx.Observable;
 9 | 
10 | public class PhotoStatisticsEntityDataSource implements PhotoStatisticsRepository {
11 | 
12 |     @Inject PreferencesPhotoStatisticsEntityStore mStatisticsEntityStore;
13 | 
14 |     @Override
15 |     public Observable<PhotoStatisticsEntity> readStatistics() {
16 |         return mStatisticsEntityStore.readStatistics();
17 |     }
18 | 
19 |     @Override
20 |     public Observable<PhotoStatisticsEntity> updateStatistics(PhotoStatisticsEntity photoStatisticsEntity) {
21 |         return mStatisticsEntityStore.updateStatistics(photoStatisticsEntity);
22 |     }
23 | }
24 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/presentation/di/modules/RxModule.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.presentation.di.modules;
 2 | 
 3 | import dagger.Module;
 4 | import dagger.Provides;
 5 | import javax.inject.Named;
 6 | import javax.inject.Singleton;
 7 | import rx.Scheduler;
 8 | import rx.android.schedulers.AndroidSchedulers;
 9 | import rx.schedulers.Schedulers;
10 | 
11 | @Module(library = true, complete = false) public class RxModule {
12 | 
13 |   public static final String COMPUTATION = "computation";
14 |   public static final String IO = "io";
15 |   public static final String MAIN_THREAD = "main_thread";
16 | 
17 |   @Provides @Singleton @Named(IO) Scheduler provideIoScheduler() {
18 |     return Schedulers.io();
19 |   }
20 | 
21 |   @Provides @Singleton @Named(MAIN_THREAD) Scheduler provideMainScheduler() {
22 |     return AndroidSchedulers.mainThread();
23 |   }
24 | 
25 |   @Provides @Singleton @Named(COMPUTATION) Scheduler provideComputationScheduler() {
26 |     return Schedulers.computation();
27 |   }
28 | }
29 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/presentation/view/LoadDataView.java:
--------------------------------------------------------------------------------
 1 | /**
 2 |  * Copyright (C) 2014 android10.org. All rights reserved.
 3 |  * @author Fernando Cejas (the android10 coder)
 4 |  */
 5 | package com.photoviewer.presentation.view;
 6 | 
 7 | import android.content.Context;
 8 | 
 9 | /**
10 |  * Interface representing a View that will use to load data.
11 |  */
12 | public interface LoadDataView {
13 |   /**
14 |    * Show a view with a progress bar indicating a loading process.
15 |    */
16 |   void showLoading();
17 | 
18 |   /**
19 |    * Hide a loading view.
20 |    */
21 |   void hideLoading();
22 | 
23 |   /**
24 |    * Show a retry view in case of an error when retrieving data.
25 |    */
26 |   void showRetry();
27 | 
28 |   /**
29 |    * Hide a retry view shown if there was an error when retrieving data.
30 |    */
31 |   void hideRetry();
32 | 
33 |   /**
34 |    * Show an error message
35 |    *
36 |    * @param message A string representing an error.
37 |    */
38 |   void showError(String message);
39 | }
40 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/domain/repository/PhotoRepository.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.domain.repository;
 2 | 
 3 | import com.photoviewer.data.entity.PhotoEntity;
 4 | import com.photoviewer.domain.Photo;
 5 | 
 6 | import java.util.List;
 7 | 
 8 | import rx.Observable;
 9 | 
10 | /**
11 |  * Interface that represents a Repository for getting {@link Photo} related data.
12 |  */
13 | public interface PhotoRepository {
14 |     /**
15 |      * Get an {@link rx.Observable} which will emit a List of {@link PhotoEntity}.
16 |      */
17 |     Observable<List<PhotoEntity>> photos();
18 | 
19 |     /**
20 |      * Get an {@link rx.Observable} which will emit a List of {@link PhotoEntity},
21 |      * whom titles match searched title.
22 |      * @param title The photos' Title used to retrieve photo data.
23 |      */
24 |     Observable<List<PhotoEntity>> searchPhotosByTitle(String title);
25 | 
26 |     /**
27 |      * Get an {@link rx.Observable} which will emit a {@link PhotoEntity}.
28 |      *
29 |      * @param photoId The photo id used to retrieve photo data.
30 |      */
31 |     Observable<PhotoEntity> photo(final int photoId);
32 | }
33 | 


--------------------------------------------------------------------------------
/app/src/androidTest/java/com/photoviewer/steps/PhotosListSteps.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.steps;
 2 | 
 3 | import com.photoviewer.pages.PhotosListPage;
 4 | import cucumber.api.java.After;
 5 | import cucumber.api.java.en.Given;
 6 | import cucumber.api.java.en.Then;
 7 | import cucumber.api.java.en.When;
 8 | 
 9 | public class PhotosListSteps {
10 | 
11 |   private PhotosListPage mPhotosListPage;
12 | 
13 |   public PhotosListSteps(PhotosListPage photosListPage) {
14 |     mPhotosListPage = photosListPage;
15 |   }
16 | 
17 |   @After("@functional-scenarios") public void tearDown() throws Exception {
18 |     mPhotosListPage.tearDown();
19 |   }
20 | 
21 |   @Given("^User opens Photos List")
22 |   public void user_opens_the_login_page() {
23 |     mPhotosListPage.open();
24 |   }
25 | 
26 |   @Then("^User sees photo with title \"([^\"]*)\"$")
27 |   public void userSeesPhotoWithTitle(String title) throws Throwable {
28 |     mPhotosListPage.checkListContainsPhoto(title);
29 |   }
30 | 
31 |   @When("^User searches for photo with title \"([^\"]*)\"$")
32 |   public void userSearchesForPhotoWithTitle(String title) throws Throwable {
33 |     mPhotosListPage.doSearchForPhoto(title);
34 |   }
35 | }
36 | 


--------------------------------------------------------------------------------
/app/src/main/AndroidManifest.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <manifest xmlns:android="http://schemas.android.com/apk/res/android"
 3 |     package="com.photoviewer" >
 4 | 
 5 |     <uses-permission android:name="android.permission.INTERNET" />
 6 |     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
 7 | 
 8 |     <application
 9 |         android:name=".presentation.PhotoViewerApplication"
10 |         android:allowBackup="true"
11 |         android:icon="@mipmap/ic_launcher"
12 |         android:label="@string/app_name"
13 |         android:theme="@style/AppTheme" >
14 | 
15 |         <activity
16 |             android:name=".presentation.view.activity.PhotosListActivity">
17 |             <intent-filter>
18 |                 <action android:name="android.intent.action.MAIN" />
19 |                 <category android:name="android.intent.category.LAUNCHER" />
20 |             </intent-filter>
21 |         </activity>
22 | 
23 |         <activity
24 |             android:name=".presentation.view.activity.PhotoDetailsActivity"
25 |             android:label="@string/activity_title_photo_details">
26 |         </activity>
27 |     </application>
28 | </manifest>
29 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/domain/usecases/GetPhotosList.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.domain.usecases;
 2 | 
 3 | import com.photoviewer.data.repository.PhotoEntityDataSource;
 4 | import com.photoviewer.domain.Photo;
 5 | import com.photoviewer.domain.mapper.photo.PhotoEntityToPhoto;
 6 | import com.photoviewer.presentation.di.modules.RxModule;
 7 | import java.util.List;
 8 | import javax.inject.Inject;
 9 | import javax.inject.Named;
10 | import rx.Observable;
11 | import rx.Scheduler;
12 | 
13 | public class GetPhotosList extends UseCase<List<Photo>> {
14 | 
15 |   private PhotoEntityDataSource mPhotoEntityDataSource;
16 |   private final PhotoEntityToPhoto mPhotoTransformer;
17 | 
18 |   @Inject public GetPhotosList(@Named(RxModule.COMPUTATION) Scheduler executionScheduler,
19 |       @Named(RxModule.MAIN_THREAD) Scheduler observingScheduler,
20 |       PhotoEntityDataSource photoEntityDataSource) {
21 |     super(executionScheduler, observingScheduler);
22 |     mPhotoTransformer = new PhotoEntityToPhoto();
23 |     mPhotoEntityDataSource = photoEntityDataSource;
24 |   }
25 | 
26 |   @Override protected Observable<List<Photo>> call() {
27 |     return mPhotoEntityDataSource.photos().map(mPhotoTransformer::transform);
28 |   }
29 | }
30 | 
31 | 


--------------------------------------------------------------------------------
/app/src/main/res/values/strings.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <resources>
 3 |     <string name="app_name">PhotoViewer</string>
 4 |     <string name="url">https://github.com/lifedemons/photoviewer</string>
 5 | 
 6 |     <string name="activity_title_photo_list">Photos List</string>
 7 |     <string name="activity_title_photo_details">Photo Details</string>
 8 | 
 9 |     <string name="btn_text_load_data">Load Sample Data</string>
10 |     <string name="btn_text_retry">Retry</string>
11 | 
12 |     <string name="view_text_email">Email:</string>
13 |     <string name="view_text_followers">Followers:</string>
14 |     <string name="view_text_description">Description:</string>
15 | 
16 |     <string name="string_content_description">Non accessible view</string>
17 | 
18 |     //Exception messages
19 |     <string name="exception_message_generic">There was an application error</string>
20 |     <string name="exception_message_no_connection">There is no internet connection</string>
21 |     <string name="exception_message_photo_not_found">Cannot retrieve photo data. Check your internet connection</string>
22 | 
23 |     //Menus
24 |     <string name="menu_search">Search</string>
25 |     <string name="menu_sort">Sort</string>
26 | 
27 | </resources>
28 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/domain/usecases/UseCase.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.domain.usecases;
 2 | 
 3 | import rx.Observable;
 4 | import rx.Scheduler;
 5 | import rx.Subscriber;
 6 | import rx.Subscription;
 7 | import rx.subscriptions.Subscriptions;
 8 | 
 9 | public abstract class UseCase<T> {
10 | 
11 |     private Subscription subscription = Subscriptions.empty();
12 |     private final Scheduler executionScheduler;
13 |     private final Scheduler observingScheduler;
14 | 
15 |     protected UseCase(Scheduler executionScheduler,
16 |                       Scheduler observingScheduler) {
17 |         this.executionScheduler = executionScheduler;
18 |         this.observingScheduler = observingScheduler;
19 |     }
20 | 
21 |     protected abstract Observable<T> call();
22 | 
23 |     @SuppressWarnings("unchecked")
24 |     public void execute(Subscriber UseCaseSubscriber) {
25 |         this.subscription = this.call()
26 |                 .subscribeOn(executionScheduler)
27 |                 .observeOn(observingScheduler)
28 |                 .subscribe(UseCaseSubscriber);
29 |     }
30 | 
31 |     public void unsubscribe() {
32 |         if (!subscription.isUnsubscribed()) {
33 |             subscription.unsubscribe();
34 |         }
35 |     }
36 | }
37 | 


--------------------------------------------------------------------------------
/app/src/main/res/layout/list_item_photo.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3 |     xmlns:tools="http://schemas.android.com/tools"
 4 |     tools:ignore="UseCompoundDrawables"
 5 |     android:layout_width="match_parent"
 6 |     android:layout_height="76dp"
 7 |     android:orientation="horizontal"
 8 |     android:padding="@dimen/list_view_row_padding"
 9 |     android:background="@drawable/selector_item_photo">
10 | 
11 |   <ImageView
12 |       android:id="@+id/avatar"
13 |       android:layout_width="@dimen/list_view_row_icon_width"
14 |       android:layout_height="@dimen/list_view_row_icon_width"
15 |       android:src="@drawable/ic_crop_original_black"
16 |       android:paddingLeft="@dimen/list_view_row_icon_padding"
17 |       android:paddingRight="@dimen/list_view_row_icon_padding"
18 |       android:contentDescription="@string/string_content_description"/>
19 | 
20 |   <TextView
21 |       android:id="@+id/title"
22 |       android:layout_width="match_parent"
23 |       android:layout_height="match_parent"
24 |       android:textSize="@dimen/list_view_row_text_size"
25 |       android:gravity="center_vertical"
26 |       android:lines="2"
27 |       android:ellipsize="end"/>
28 | 
29 | </LinearLayout>
30 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/domain/usecases/GetPhotoDetails.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.domain.usecases;
 2 | 
 3 | import com.photoviewer.data.repository.PhotoEntityDataSource;
 4 | import com.photoviewer.domain.Photo;
 5 | import com.photoviewer.domain.mapper.photo.PhotoEntityToPhoto;
 6 | import com.photoviewer.presentation.di.modules.RxModule;
 7 | import javax.inject.Inject;
 8 | import javax.inject.Named;
 9 | import lombok.Setter;
10 | import lombok.experimental.Accessors;
11 | import rx.Observable;
12 | import rx.Scheduler;
13 | 
14 | @Accessors(prefix = "m") public class GetPhotoDetails extends UseCase<Photo> {
15 | 
16 |   @Setter private int mPhotoId;
17 |   private final PhotoEntityToPhoto mPhotoTransformer;
18 | 
19 |   private PhotoEntityDataSource mPhotoEntityDataSource;
20 | 
21 |   @Inject public GetPhotoDetails(@Named(RxModule.COMPUTATION) Scheduler executionScheduler,
22 |       @Named(RxModule.MAIN_THREAD) Scheduler observingScheduler,
23 |       PhotoEntityDataSource photoEntityDataSource) {
24 |     super(executionScheduler, observingScheduler);
25 |     mPhotoTransformer = new PhotoEntityToPhoto();
26 |     mPhotoEntityDataSource = photoEntityDataSource;
27 |   }
28 | 
29 |   @Override protected Observable<Photo> call() {
30 |     return this.mPhotoEntityDataSource.photo(mPhotoId).map(mPhotoTransformer::transform);
31 |   }
32 | }
33 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/presentation/mapper/photostatistics/PhotoStatisticsToPhotoStatisticsModel.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.presentation.mapper.photostatistics;
 2 | 
 3 | import com.photoviewer.domain.Photo;
 4 | import com.photoviewer.domain.PhotoStatistics;
 5 | import com.photoviewer.presentation.mapper.photo.PhotoToPhotoModel;
 6 | import com.photoviewer.presentation.model.PhotoStatisticsModel;
 7 | import com.photoviewer.domain.mapper.BaseLayerDataTransformer;
 8 | 
 9 | public class PhotoStatisticsToPhotoStatisticsModel extends BaseLayerDataTransformer<PhotoStatistics, PhotoStatisticsModel> {
10 | 
11 |     private PhotoToPhotoModel mPhotoToPhotoModelTransformer;
12 | 
13 |     public PhotoStatisticsToPhotoStatisticsModel() {
14 |         mPhotoToPhotoModelTransformer = new PhotoToPhotoModel();
15 |     }
16 | 
17 |     @Override
18 |     public PhotoStatisticsModel transform(PhotoStatistics from) {
19 |         PhotoStatisticsModel transformed = new PhotoStatisticsModel();
20 | 
21 |         transformed.setOpenedPhotosCount(from.getOpenedPhotosCount());
22 | 
23 |         Photo lastOpenedPhoto = from.getLastOpenedPhoto();
24 |         if (lastOpenedPhoto != null) {
25 |             transformed.setLastOpenedPhotoModel(mPhotoToPhotoModelTransformer.transform(lastOpenedPhoto));
26 |         }
27 | 
28 |         return transformed;
29 |     }
30 | }
31 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/presentation/mapper/photostatistics/PhotoStatisticsModelToPhotoStatistics.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.presentation.mapper.photostatistics;
 2 | 
 3 | import com.photoviewer.domain.PhotoStatistics;
 4 | import com.photoviewer.presentation.mapper.photo.PhotoModelToPhoto;
 5 | import com.photoviewer.presentation.model.PhotoModel;
 6 | import com.photoviewer.presentation.model.PhotoStatisticsModel;
 7 | import com.photoviewer.domain.mapper.BaseLayerDataTransformer;
 8 | 
 9 | public class PhotoStatisticsModelToPhotoStatistics extends BaseLayerDataTransformer<PhotoStatisticsModel, PhotoStatistics> {
10 | 
11 |     private PhotoModelToPhoto mPhotoModelToPhotoTransformer;
12 | 
13 |     public PhotoStatisticsModelToPhotoStatistics() {
14 |         mPhotoModelToPhotoTransformer = new PhotoModelToPhoto();
15 |     }
16 | 
17 |     @Override
18 |     public PhotoStatistics transform(PhotoStatisticsModel from) {
19 |         PhotoStatistics transformed = new PhotoStatistics();
20 | 
21 |         PhotoModel lastOpenedPhotoModel = from.getLastOpenedPhotoModel();
22 | 
23 |         if (lastOpenedPhotoModel != null) {
24 |             transformed.setLastOpenedPhoto(mPhotoModelToPhotoTransformer.transform(lastOpenedPhotoModel));
25 |             transformed.setOpenedPhotosCount(from.getOpenedPhotosCount());
26 |         }
27 | 
28 |         return transformed;
29 |     }
30 | }
31 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/data/db/DatabaseHelper.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.data.db;
 2 | 
 3 | import android.content.Context;
 4 | import android.database.sqlite.SQLiteDatabase;
 5 | import android.support.annotation.NonNull;
 6 | 
 7 | import com.j256.ormlite.android.apptools.OrmLiteSqliteOpenHelper;
 8 | import com.j256.ormlite.support.ConnectionSource;
 9 | import com.photoviewer.data.db.migrations.CreatePhotosTable;
10 | import com.photoviewer.data.db.migrations.Migration;
11 | 
12 | public class DatabaseHelper extends OrmLiteSqliteOpenHelper {
13 |     private static final Migration[] MIGRATIONS = new Migration[]{
14 |             new CreatePhotosTable()
15 |     };
16 | 
17 |     public DatabaseHelper(Context context, String databaseName) {
18 |         super(context, databaseName, null, MIGRATIONS.length);
19 |     }
20 | 
21 |     @Override
22 |     public void onCreate(@NonNull SQLiteDatabase sqLiteDatabase, ConnectionSource connectionSource) {
23 |         for (Migration migration : MIGRATIONS) {
24 |             migration.up(sqLiteDatabase, connectionSource);
25 |         }
26 |     }
27 | 
28 |     @Override
29 |     public void onUpgrade(@NonNull SQLiteDatabase sqLiteDatabase, ConnectionSource connectionSource, int oldVersion, int newVersion) {
30 |         for (int i = oldVersion; i < newVersion; i++) {
31 |             MIGRATIONS[i].up(sqLiteDatabase, connectionSource);
32 |         }
33 |     }
34 | }
35 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/domain/usecases/SearchByTitle.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.domain.usecases;
 2 | 
 3 | import com.photoviewer.data.repository.PhotoEntityDataSource;
 4 | import com.photoviewer.domain.Photo;
 5 | import com.photoviewer.domain.mapper.photo.PhotoEntityToPhoto;
 6 | 
 7 | import com.photoviewer.presentation.di.modules.RxModule;
 8 | import java.util.List;
 9 | 
10 | import javax.inject.Inject;
11 | import javax.inject.Named;
12 | import lombok.Setter;
13 | import lombok.experimental.Accessors;
14 | import rx.Observable;
15 | import rx.Scheduler;
16 | 
17 | @Accessors(prefix = "m") public class SearchByTitle extends UseCase<List<Photo>> {
18 | 
19 |   @Setter private String mSearchedTitle;
20 |   private PhotoEntityDataSource mPhotoEntityDataSource;
21 |   private final PhotoEntityToPhoto photoTransformer;
22 | 
23 |   @Inject public SearchByTitle(@Named(RxModule.COMPUTATION) Scheduler executionScheduler,
24 |       @Named(RxModule.MAIN_THREAD) Scheduler observingScheduler,
25 |       PhotoEntityDataSource photoEntityDataSource) {
26 |     super(executionScheduler, observingScheduler);
27 |     mPhotoEntityDataSource = photoEntityDataSource;
28 |     photoTransformer = new PhotoEntityToPhoto();
29 |   }
30 | 
31 |   @Override protected Observable<List<Photo>> call() {
32 |     return this.mPhotoEntityDataSource.searchPhotosByTitle(mSearchedTitle)
33 |         .map(photoTransformer::transform);
34 |   }
35 | }
36 | 
37 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/presentation/presenter/Presenter.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.presentation.presenter;
 2 | 
 3 | /**
 4 |  * Interface representing a Presenter in a model view presenter (MVP) pattern.
 5 |  */
 6 | public interface Presenter {
 7 | 
 8 |     /**
 9 |      * Method that control the lifecycle of the view. It should be called in the view's
10 |      * (Activity or Fragment) onCreate() method.
11 |      */
12 |     void create();
13 | 
14 |     /**
15 |      * Method that control the lifecycle of the view. It should be called in the view's
16 |      * (Activity or Fragment) onStart() method.
17 |      */
18 |     void start();
19 | 
20 |     /**
21 |      * Method that control the lifecycle of the view. It should be called in the view's
22 |      * (Activity or Fragment) onResume() method.
23 |      */
24 |     void resume();
25 | 
26 |     /**
27 |      * Method that control the lifecycle of the view. It should be called in the view's
28 |      * (Activity or Fragment) onPause() method.
29 |      */
30 |     void pause();
31 | 
32 |     /**
33 |      * Method that control the lifecycle of the view. It should be called in the view's
34 |      * (Activity or Fragment) onStop() method.
35 |      */
36 |     void stop();
37 | 
38 |     /**
39 |      * Method that control the lifecycle of the view. It should be called in the view's
40 |      * (Activity or Fragment) onDestroy() method.
41 |      */
42 |     void destroy();
43 | }
44 | 
45 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/data/entity/PhotoEntity.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.data.entity;
 2 | 
 3 | import com.google.gson.annotations.SerializedName;
 4 | import com.j256.ormlite.field.DatabaseField;
 5 | import com.j256.ormlite.table.DatabaseTable;
 6 | 
 7 | import lombok.Getter;
 8 | import lombok.Setter;
 9 | import lombok.experimental.Accessors;
10 | 
11 | @Accessors(prefix = "m")
12 | @DatabaseTable(tableName = "photos")
13 | public class PhotoEntity {
14 | 
15 |     public interface Fields {
16 |         String ID = "id";
17 |         String ALBUM_ID = "albumId";
18 |         String TITLE = "title";
19 |         String URL = "url";
20 |         String THUMBNAIL_URL = "thumbnailUrl";
21 |     }
22 | 
23 |     @SerializedName(Fields.ID)
24 |     @Getter
25 |     @Setter
26 |     @DatabaseField(id = true, columnName = Fields.ID)
27 |     private int mId;
28 | 
29 |     @SerializedName(Fields.ALBUM_ID)
30 |     @Getter
31 |     @DatabaseField(columnName = Fields.ALBUM_ID)
32 |     private int mAlbumId;
33 | 
34 |     @SerializedName(Fields.TITLE)
35 |     @Getter
36 |     @Setter
37 |     @DatabaseField(columnName = Fields.TITLE)
38 |     private String mTitle;
39 | 
40 |     @SerializedName(Fields.URL)
41 |     @Getter
42 |     @DatabaseField(columnName = Fields.URL)
43 |     private String mUrl;
44 | 
45 |     @SerializedName(Fields.THUMBNAIL_URL)
46 |     @Getter
47 |     @DatabaseField(columnName = Fields.THUMBNAIL_URL)
48 |     private String mThumbnailUrl;
49 | }


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/domain/usecases/GetPhotoStatistics.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.domain.usecases;
 2 | 
 3 | import com.photoviewer.data.repository.PhotoStatisticsEntityDataSource;
 4 | import com.photoviewer.domain.PhotoStatistics;
 5 | 
 6 | import com.photoviewer.presentation.di.modules.RxModule;
 7 | import javax.inject.Inject;
 8 | import javax.inject.Named;
 9 | import lombok.experimental.Accessors;
10 | import rx.Observable;
11 | import rx.Scheduler;
12 | 
13 | @Accessors(prefix = "m") public class GetPhotoStatistics extends UseCase<PhotoStatistics> {
14 | 
15 |   @Inject PhotoStatisticsEntityDataSource mPhotoStatisticsEntityDataSource;
16 |   @Inject GetPhotoDetails mGetPhotoDetailsUseCase;
17 | 
18 |   @Inject public GetPhotoStatistics(@Named(RxModule.COMPUTATION) Scheduler executionScheduler,
19 |       @Named(RxModule.MAIN_THREAD) Scheduler observingScheduler) {
20 |     super(executionScheduler, observingScheduler);
21 |   }
22 | 
23 |   @Override protected Observable<PhotoStatistics> call() {
24 |     return mPhotoStatisticsEntityDataSource.readStatistics().
25 |         switchMap(photoStatisticsEntity -> {
26 |           mGetPhotoDetailsUseCase.setPhotoId(photoStatisticsEntity.getLastOpenedPhotoId());
27 |           return mGetPhotoDetailsUseCase.call().map(photo -> {
28 |             PhotoStatistics merged = new PhotoStatistics();
29 | 
30 |             merged.setLastOpenedPhoto(photo);
31 |             merged.setOpenedPhotosCount(photoStatisticsEntity.getOpenedPhotosCount());
32 | 
33 |             return merged;
34 |           });
35 |         });
36 |   }
37 | }
38 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/presentation/view/PhotoListView.java:
--------------------------------------------------------------------------------
 1 | /**
 2 |  * Copyright (C) 2014 android10.org. All rights reserved.
 3 |  *
 4 |  * @author Fernando Cejas (the android10 coder)
 5 |  */
 6 | package com.photoviewer.presentation.view;
 7 | 
 8 | import com.photoviewer.presentation.model.PhotoModel;
 9 | import com.photoviewer.presentation.model.PhotoStatisticsModel;
10 | 
11 | import java.util.Collection;
12 | 
13 | /**
14 |  * Interface representing a View in a model view presenter (MVP) pattern.
15 |  * In this case is used as a view representing a list of {@link PhotoModel}.
16 |  */
17 | public interface PhotoListView extends LoadDataView {
18 |     /**
19 |      * Render a photo list in the UI.
20 |      *
21 |      * @param photoModelCollection The collection of {@link PhotoModel} that will be shown.
22 |      */
23 |     void renderPhotoList(Collection<PhotoModel> photoModelCollection);
24 | 
25 |     /**
26 |      * View a {@link PhotoModel} profile/details.
27 |      *
28 |      * @param photoModel The photo that will be shown.
29 |      */
30 |     void viewPhoto(PhotoModel photoModel);
31 | 
32 | 
33 |     /**
34 |      * View a {@link PhotoStatisticsModel} profile/details.
35 |      *
36 |      * @param photoStatisticsModel The PhotoStatisticsModel that will be shown.
37 |      */
38 |     void renderPhotoStatisticsModel(PhotoStatisticsModel photoStatisticsModel);
39 | 
40 |     /**
41 |      * Highlights text entries in list items.
42 |      *
43 |      * @param textToHighlight text to highlight.
44 |      */
45 |     void highlightTextInList(String textToHighlight);
46 | }
47 | 


--------------------------------------------------------------------------------
/app/src/androidTest/java/com/photoviewer/cucumber/CucumberTestRunner.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.cucumber;
 2 | 
 3 | import android.os.Bundle;
 4 | import android.support.test.runner.AndroidJUnitRunner;
 5 | import com.photoviewer.BuildConfig;
 6 | import cucumber.api.android.CucumberInstrumentationCore;
 7 | 
 8 | public class CucumberTestRunner extends AndroidJUnitRunner {
 9 |   /**
10 |    * This is the item Cucumber uses to identify the tags parameter, see method
11 |    * {@link cucumber.runtime.android.Arguments#getCucumberOptionsString(Bundle)}
12 |    */
13 |   private static final String CUCUMBER_TAGS_KEY = "tags";
14 |   private final CucumberInstrumentationCore instrumentationCore =
15 |       new CucumberInstrumentationCore(this);
16 | 
17 |   @Override public void onCreate(final Bundle bundle) {
18 |     super.onCreate(bundle);
19 | 
20 |     reformatTagsList(bundle);
21 |     instrumentationCore.create(bundle);
22 |   }
23 | 
24 |   private void reformatTagsList(Bundle bundle) {
25 |     // Read tags passed as parameters and overwrite @CucumberOptions tags inside CucumberTestCase.java
26 |     final String tags = BuildConfig.CUCUMBER_TAGS;
27 |     if (!tags.isEmpty()) {
28 |       // Reformat tags list to separate items with '--' as expected by Cucumber library, see method
29 |       // cucumber-android-1.2.2.jar\cucumber\runtime\android\Arguments.class @ appendOption()
30 |       bundle.putString(CUCUMBER_TAGS_KEY, tags.replaceAll(",", "--").replaceAll("\\s", ""));
31 |     }
32 |   }
33 | 
34 |   @Override public void onStart() {
35 |     waitForIdleSync();
36 |     instrumentationCore.start();
37 |   }
38 | }
39 | 


--------------------------------------------------------------------------------
/app/src/androidTest/java/com/photoviewer/pages/PhotosListPage.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.pages;
 2 | 
 3 | import com.photoviewer.R;
 4 | import com.photoviewer.common.steps.PageObject;
 5 | import com.photoviewer.presentation.view.activity.PhotosListActivity;
 6 | 
 7 | import static android.support.test.espresso.Espresso.onView;
 8 | import static android.support.test.espresso.action.ViewActions.click;
 9 | import static android.support.test.espresso.action.ViewActions.typeText;
10 | import static android.support.test.espresso.assertion.ViewAssertions.matches;
11 | import static android.support.test.espresso.matcher.ViewMatchers.hasDescendant;
12 | import static android.support.test.espresso.matcher.ViewMatchers.withId;
13 | import static android.support.test.espresso.matcher.ViewMatchers.withText;
14 | 
15 | public class PhotosListPage extends PageObject<PhotosListActivity> {
16 | 
17 |   private interface Locators {
18 |     int PHOTOS_LIST_VIEW = R.id.photos_list;
19 |     int PHOTOS_SEARCH_BUTTON = R.id.menu_search;
20 |     int SEARCH_SRC_TEXT = android.support.design.R.id.search_src_text;
21 |   }
22 | 
23 |   public PhotosListPage() {
24 |     super(PhotosListActivity.class);
25 |   }
26 | 
27 |   public void open() {
28 |     getActivity();
29 |   }
30 | 
31 |   public void checkListContainsPhoto(String title) {
32 |     onView(withId(Locators.PHOTOS_LIST_VIEW)).check(matches(hasDescendant(withText(title))));
33 |   }
34 | 
35 |   public void doSearchForPhoto(String title) {
36 |     onView(withId(Locators.PHOTOS_SEARCH_BUTTON)).perform(click());
37 |     onView(withId(Locators.SEARCH_SRC_TEXT)).perform(typeText(title));
38 |   }
39 | }
40 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/data/db/migrations/Migration.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.data.db.migrations;
 2 | 
 3 | import android.database.Cursor;
 4 | import android.database.sqlite.SQLiteDatabase;
 5 | 
 6 | import com.j256.ormlite.support.ConnectionSource;
 7 | 
 8 | public abstract class Migration {
 9 |     public abstract void up(SQLiteDatabase db, ConnectionSource connectionSource);
10 | 
11 |     void addColumns(SQLiteDatabase db, String tableName, String... columnDefinitions) {
12 |         for (String definition : columnDefinitions) {
13 |             String sql = generateAddColumnSql(tableName, definition);
14 |             String columnName = definition.split(" ")[0];
15 |             if (!columnExists(db, tableName, columnName)) {
16 |                 db.execSQL(sql);
17 |             }
18 |         }
19 |     }
20 | 
21 |     boolean columnExists(SQLiteDatabase db, String tableName, String columnName) {
22 |         String sql = "PRAGMA TABLE_INFO(" + tableName + ")";
23 |         Cursor cursor = db.rawQuery(sql, null);
24 | 
25 |         cursor.moveToFirst();
26 | 
27 |         do {
28 |             String candidateColumnName = cursor.getString(cursor.getColumnIndex("name"));
29 | 
30 |             if (candidateColumnName.equals(columnName)) {
31 |                 cursor.close();
32 |                 return true;
33 |             }
34 |         } while (cursor.moveToNext());
35 | 
36 |         cursor.close();
37 | 
38 |         return false;
39 |     }
40 | 
41 |     private String generateAddColumnSql(String tableName, String columnDefinition) {
42 |         return "ALTER TABLE " + tableName + " ADD COLUMN " + columnDefinition;
43 |     }
44 | }


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/presentation/view/utils/ImageRoundedCornersTransformation.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.presentation.view.utils;
 2 | 
 3 | import android.graphics.Bitmap;
 4 | import android.graphics.BitmapShader;
 5 | import android.graphics.Canvas;
 6 | import android.graphics.Paint;
 7 | import android.graphics.RectF;
 8 | import android.graphics.Shader;
 9 | 
10 | public class ImageRoundedCornersTransformation implements
11 |         com.squareup.picasso.Transformation {
12 |     private final int radius;
13 |     private final int margin;
14 | 
15 |     // radius is corner radius in dp
16 |     // margin is the board in dp
17 |     public ImageRoundedCornersTransformation(final int radius, final int margin) {
18 |         this.radius = radius;
19 |         this.margin = margin;
20 |     }
21 | 
22 |     @Override
23 |     public Bitmap transform(final Bitmap source) {
24 |         final Paint paint = new Paint();
25 |         paint.setAntiAlias(true);
26 |         paint.setShader(new BitmapShader(source, Shader.TileMode.CLAMP,
27 |                 Shader.TileMode.CLAMP));
28 | 
29 |         Bitmap output = Bitmap.createBitmap(source.getWidth(),
30 |                 source.getHeight(), Bitmap.Config.ARGB_8888);
31 |         Canvas canvas = new Canvas(output);
32 |         canvas.drawRoundRect(new RectF(margin, margin, source.getWidth()
33 |                 - margin, source.getHeight() - margin), radius, radius, paint);
34 | 
35 |         if (source != output) {
36 |             source.recycle();
37 |         }
38 | 
39 |         return output;
40 |     }
41 | 
42 |     @Override
43 |     public String key() {
44 |         return "rounded";
45 |     }
46 | }


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/domain/usecases/SavePhotoStatistics.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.domain.usecases;
 2 | 
 3 | import com.photoviewer.data.entity.PhotoStatisticsEntity;
 4 | import com.photoviewer.data.repository.PhotoStatisticsEntityDataSource;
 5 | import com.photoviewer.domain.PhotoStatistics;
 6 | import com.photoviewer.domain.mapper.photostatisctics.PhotoStatisticsToPhotoStatisticsEntity;
 7 | 
 8 | import com.photoviewer.presentation.di.modules.RxModule;
 9 | import javax.inject.Inject;
10 | import javax.inject.Named;
11 | import lombok.Setter;
12 | import lombok.experimental.Accessors;
13 | import rx.Observable;
14 | import rx.Scheduler;
15 | 
16 | @Accessors(prefix = "m")
17 | public class SavePhotoStatistics extends UseCase<Void> {
18 |     private final PhotoStatisticsToPhotoStatisticsEntity mPhotoStatisticsToPhotoStatisticsEntityTransformer;
19 | 
20 |     @Setter
21 |     private PhotoStatistics mPhotoStatistics;
22 | 
23 |     @Inject PhotoStatisticsEntityDataSource mPhotoStatisticsEntityDataSource;
24 | 
25 |     @Inject public SavePhotoStatistics(@Named(RxModule.COMPUTATION) Scheduler executionScheduler,
26 |         @Named(RxModule.MAIN_THREAD) Scheduler observingScheduler) {
27 |         super(executionScheduler, observingScheduler);
28 |         mPhotoStatisticsToPhotoStatisticsEntityTransformer =
29 |             new PhotoStatisticsToPhotoStatisticsEntity();
30 |     }
31 | 
32 |     @Override
33 |     protected Observable<Void> call() {
34 |         PhotoStatisticsEntity photoStatisticsEntity = mPhotoStatisticsToPhotoStatisticsEntityTransformer.transform(mPhotoStatistics);
35 |         return mPhotoStatisticsEntityDataSource.updateStatistics(photoStatisticsEntity).map(photoStatisticsEntity1 -> null);
36 |     }
37 | }


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/data/db/DatabaseManager.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.data.db;
 2 | 
 3 | import android.content.Context;
 4 | import android.util.Log;
 5 | 
 6 | import com.j256.ormlite.dao.Dao;
 7 | import com.j256.ormlite.dao.DaoManager;
 8 | import com.j256.ormlite.support.ConnectionSource;
 9 | import com.photoviewer.data.entity.PhotoEntity;
10 | 
11 | import java.sql.SQLException;
12 | import javax.inject.Inject;
13 | 
14 | public class DatabaseManager {
15 | 
16 |     public static final String LOG_TAG_DB = "Photos:Database";
17 |     public static final String DEFAULT_DATABASE_NAME = "photo_viewer";
18 | 
19 |     private final ConnectionSource mConnectionSource;
20 | 
21 |     //DAOs
22 |     private Dao<PhotoEntity, Integer> mPhotosDao;
23 | 
24 |     @Inject
25 |     public DatabaseManager(Context context) {
26 |         this(context, DEFAULT_DATABASE_NAME);
27 |     }
28 | 
29 |     public DatabaseManager(Context context, String databaseName) {
30 |         DatabaseHelper databaseHelper = new DatabaseHelper(context, databaseName);
31 |         mConnectionSource = databaseHelper.getConnectionSource(); // force database creation/upgrade eagerly
32 |     }
33 | 
34 |     public Dao<PhotoEntity, Integer> getPhotosDao() {
35 |         if (mPhotosDao == null) {
36 |             createPhotoEntityDao();
37 |         }
38 | 
39 |         return mPhotosDao;
40 |     }
41 | 
42 |     private void createPhotoEntityDao() {
43 |         try {
44 |             mPhotosDao = DaoManager.createDao(mConnectionSource, PhotoEntity.class);
45 |             mPhotosDao.setObjectCache(true);
46 |         } catch (SQLException e) {
47 |             Log.wtf(LOG_TAG_DB, "Creation of Dao<" + PhotoEntity.class + "> failed", e);
48 |         }
49 |     }
50 | }
51 | 


--------------------------------------------------------------------------------
/app/src/androidTest/java/com/photoviewer/common/steps/PageObject.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.common.steps;
 2 | 
 3 | import android.app.Activity;
 4 | import android.support.test.espresso.Espresso;
 5 | import android.support.test.espresso.IdlingResource;
 6 | import android.support.test.rule.ActivityTestRule;
 7 | import com.jakewharton.espresso.OkHttp3IdlingResource;
 8 | import com.photoviewer.di.TestsModule;
 9 | import com.photoviewer.presentation.PhotoViewerApplication;
10 | import javax.inject.Inject;
11 | import okhttp3.OkHttpClient;
12 | import org.junit.Rule;
13 | 
14 | public class PageObject<T extends Activity> {
15 | 
16 |   @Rule public ActivityTestRule<T> mActivityRule;
17 | 
18 |   @Inject OkHttpClient mOkHttpClient;
19 | 
20 |   private T mActivity;
21 |   private IdlingResource mOkHttp3IdlingResource;
22 | 
23 |   public PageObject(Class<T> activityClass) {
24 |     mActivityRule = new ActivityTestRule<>(activityClass, false, false);
25 | 
26 |     injectFieldsFromApp();
27 |     setUpIdlingResources();
28 |   }
29 | 
30 |   private void injectFieldsFromApp() {
31 |     PhotoViewerApplication.getScopedGraph(new TestsModule()).inject(this);
32 |   }
33 | 
34 |   private void setUpIdlingResources() {
35 |     mOkHttp3IdlingResource = OkHttp3IdlingResource.create("OkHttp", mOkHttpClient);
36 |     Espresso.registerIdlingResources(mOkHttp3IdlingResource);
37 |   }
38 | 
39 |   public T getActivity() {
40 |     mActivity = mActivityRule.launchActivity(null);
41 | 
42 |     return mActivity;
43 |   }
44 | 
45 |   public void tearDown() throws Exception {
46 |     mActivity.finish();
47 |     tearDownIdlingResources();
48 |   }
49 | 
50 |   private void tearDownIdlingResources() {
51 |     Espresso.unregisterIdlingResources(mOkHttp3IdlingResource);
52 |   }
53 | }
54 | 


--------------------------------------------------------------------------------
/app/src/test/java/com/photoviewer/domain/usecases/GetPhotosListTest.kt:
--------------------------------------------------------------------------------
 1 | @file:Suppress("IllegalIdentifier")
 2 | 
 3 | package com.photoviewer.domain.usecases
 4 | 
 5 | import com.nhaarman.mockito_kotlin.mock
 6 | import com.nhaarman.mockito_kotlin.whenever
 7 | import com.photoviewer.data.entity.PhotoEntity
 8 | import com.photoviewer.data.repository.PhotoEntityDataSource
 9 | import com.photoviewer.domain.Photo
10 | import org.junit.Before
11 | import org.junit.Test
12 | import rx.Observable.just
13 | import rx.Scheduler
14 | import rx.observers.TestSubscriber
15 | import java.util.*
16 | import kotlin.test.assertEquals
17 | 
18 | class GetPhotosListTest {
19 | 
20 |     private val mPhotoEntityDataSource: PhotoEntityDataSource = mock()
21 |     private val mMockScheduler: Scheduler = mock()
22 | 
23 |     private lateinit var mGetPhotosList: GetPhotosList
24 |     private lateinit var mTestSubscriber: TestSubscriber<List<Photo>>
25 | 
26 |     @Before fun setUp() {
27 |         mTestSubscriber = TestSubscriber.create()
28 |         mGetPhotosList = GetPhotosList(mMockScheduler, mMockScheduler, mPhotoEntityDataSource)
29 |     }
30 | 
31 |     @Test fun `should get particular photo`() {
32 |         val photos = createPhotosList()
33 | 
34 |         assumeDataSourceHasRequestedPhotos(photos)
35 | 
36 |         mGetPhotosList.call().subscribe(mTestSubscriber)
37 | 
38 |         assertEquals(photos.size, mTestSubscriber.onNextEvents[0].size)
39 |     }
40 | 
41 |     private fun assumeDataSourceHasRequestedPhotos(photos: ArrayList<PhotoEntity>) {
42 |         whenever(mPhotoEntityDataSource.photos()).thenReturn(just<List<PhotoEntity>>(photos))
43 |     }
44 | 
45 |     private fun createPhotosList() = ArrayList<PhotoEntity>().apply {
46 |         add(PhotoEntity())
47 |     }
48 | }
49 | 
50 | 
51 | 


--------------------------------------------------------------------------------
/app/src/main/res/values/styles.xml:
--------------------------------------------------------------------------------
 1 | <resources>
 2 | 
 3 |     <!-- Base application theme. -->
 4 |     <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
 5 |         <item name="colorPrimary">@color/indigo</item>
 6 |         <item name="colorPrimaryDark">@color/dark_indigo</item>
 7 |         <item name="colorAccent">@color/pink</item>
 8 |     </style>
 9 | 
10 |     <style name="AppTheme.ProgressBar">
11 |         <item name="android:layout_width">wrap_content</item>
12 |         <item name="android:layout_height">wrap_content</item>
13 |         <item name="android:layout_centerInParent">true</item>
14 |         <item name="android:layout_gravity">center</item>
15 |         <item name="android:visibility">visible</item>
16 |     </style>
17 | 
18 |     <style name="AppTheme.Button">
19 |         <item name="android:layout_width">wrap_content</item>
20 |         <item name="android:layout_height">wrap_content</item>
21 |         <item name="android:layout_centerVertical">true</item>
22 |         <item name="android:layout_centerHorizontal">true</item>
23 |         <item name="android:layout_gravity">center</item>
24 |     </style>
25 | 
26 |     <style name="AppTheme.TextViewHeader">
27 |         <item name="android:layout_width">match_parent</item>
28 |         <item name="android:layout_height">wrap_content</item>
29 |         <item name="android:textSize">@dimen/header_text_size</item>
30 |         <item name="android:gravity">center</item>
31 |         <item name="android:background">@android:color/background_light</item>
32 |     </style>
33 | 
34 |     <style name="AppTheme.TextViewTitle">
35 |         <item name="android:layout_width">match_parent</item>
36 |         <item name="android:layout_height">wrap_content</item>
37 |         <item name="android:layout_marginTop">@dimen/header_margin</item>
38 |         <item name="android:textStyle">bold</item>
39 |     </style>
40 | 
41 | </resources>
42 | 


--------------------------------------------------------------------------------
/app/src/test/java/com/photoviewer/domain/usecases/GetPhotoDetailsTest.kt:
--------------------------------------------------------------------------------
 1 | @file:Suppress("IllegalIdentifier")
 2 | 
 3 | package com.photoviewer.domain.usecases
 4 | 
 5 | import com.nhaarman.mockito_kotlin.mock
 6 | import com.nhaarman.mockito_kotlin.whenever
 7 | import com.photoviewer.data.entity.PhotoEntity
 8 | import com.photoviewer.data.repository.PhotoEntityDataSource
 9 | import com.photoviewer.domain.Photo
10 | import org.junit.Before
11 | import org.junit.Test
12 | import org.mockito.Matchers.anyInt
13 | import rx.Observable
14 | import rx.Scheduler
15 | import rx.observers.TestSubscriber
16 | import kotlin.test.assertEquals
17 | 
18 | class GetPhotoDetailsTest {
19 | 
20 |     private val mPhotoEntityDataSource: PhotoEntityDataSource = mock()
21 |     private val mScheduler: Scheduler = mock()
22 | 
23 |     private lateinit var mGetPhotoDetails: GetPhotoDetails
24 |     private lateinit var mTestSubscriber: TestSubscriber<Photo>
25 | 
26 | 
27 |     companion object {
28 |         private val FAKE_PHOTO_ID = 123
29 |     }
30 | 
31 |     @Before fun setUp() {
32 |         mTestSubscriber = TestSubscriber.create()
33 |         mGetPhotoDetails = GetPhotoDetails(mScheduler, mScheduler, mPhotoEntityDataSource)
34 |     }
35 | 
36 |     @Test fun `should get particular photo`() {
37 |         val photoEntity = createPhotoEntity()
38 |         assumeDataSourceHasRequestedPhoto(photoEntity)
39 | 
40 |         mGetPhotoDetails.setPhotoId(FAKE_PHOTO_ID)
41 |         mGetPhotoDetails.call().subscribe(mTestSubscriber)
42 | 
43 |         assertEquals(FAKE_PHOTO_ID, mTestSubscriber.onNextEvents[0].id)
44 |     }
45 | 
46 |     private fun createPhotoEntity() = PhotoEntity().apply {
47 |         id = FAKE_PHOTO_ID
48 |     }
49 | 
50 |     private fun assumeDataSourceHasRequestedPhoto(photoEntity: PhotoEntity) {
51 |         whenever(mPhotoEntityDataSource.photo(anyInt())).thenReturn(
52 |                 Observable.just(photoEntity))
53 |     }
54 | }
55 | 


--------------------------------------------------------------------------------
/app/src/test/java/com/photoviewer/domain/usecases/SearchByTitleTest.kt:
--------------------------------------------------------------------------------
 1 | @file:Suppress("IllegalIdentifier")
 2 | package com.photoviewer.domain.usecases
 3 | 
 4 | import com.nhaarman.mockito_kotlin.mock
 5 | import com.nhaarman.mockito_kotlin.whenever
 6 | import com.photoviewer.data.entity.PhotoEntity
 7 | import com.photoviewer.data.repository.PhotoEntityDataSource
 8 | import com.photoviewer.domain.Photo
 9 | import org.junit.Before
10 | import org.junit.Test
11 | import rx.Observable.just
12 | import rx.Scheduler
13 | import rx.observers.TestSubscriber
14 | import java.util.*
15 | import kotlin.test.assertEquals
16 | 
17 | class SearchByTitleTest {
18 | 
19 |     private val mMockPhotoEntityDataSource: PhotoEntityDataSource = mock()
20 |     private val mMockScheduler: Scheduler = mock()
21 | 
22 |     private lateinit var mSearchByTitle: SearchByTitle
23 |     private lateinit var mTestSubscriber: TestSubscriber<List<Photo>>
24 | 
25 |     companion object {
26 |         private val FAKE_PHOTO_TITLE = "Fake Title"
27 |     }
28 | 
29 |     @Before fun setUp() {
30 |         mTestSubscriber = TestSubscriber.create()
31 |         mSearchByTitle = SearchByTitle(mMockScheduler, mMockScheduler, mMockPhotoEntityDataSource)
32 |     }
33 | 
34 |     @Test fun `should search by title`() {
35 |         val photos = createPhotosList()
36 | 
37 |         assumeDataSourceHasSearchedContent(photos)
38 | 
39 |         mSearchByTitle.setSearchedTitle(FAKE_PHOTO_TITLE)
40 |         mSearchByTitle.call().subscribe(mTestSubscriber)
41 | 
42 |         assertEquals(photos.size, mTestSubscriber.onNextEvents[0].size)
43 |     }
44 | 
45 |     private fun assumeDataSourceHasSearchedContent(photos: ArrayList<PhotoEntity>) {
46 |         whenever(mMockPhotoEntityDataSource.searchPhotosByTitle(FAKE_PHOTO_TITLE)).thenReturn(
47 |                 just<List<PhotoEntity>>(photos))
48 |     }
49 | 
50 |     private fun createPhotosList() = ArrayList<PhotoEntity>().apply {
51 |         add(PhotoEntity().apply { title = FAKE_PHOTO_TITLE })
52 |     }
53 | }


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/presentation/di/modules/ApiModule.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.presentation.di.modules;
 2 | 
 3 | import android.content.Context;
 4 | import com.jakewharton.picasso.OkHttp3Downloader;
 5 | import com.photoviewer.BuildConfig;
 6 | import com.photoviewer.data.network.PhotoRestService;
 7 | import com.squareup.picasso.Picasso;
 8 | import dagger.Module;
 9 | import dagger.Provides;
10 | import javax.inject.Singleton;
11 | import okhttp3.OkHttpClient;
12 | import okhttp3.logging.HttpLoggingInterceptor;
13 | import retrofit2.Retrofit;
14 | import retrofit2.adapter.rxjava.RxJavaCallAdapterFactory;
15 | import retrofit2.converter.gson.GsonConverterFactory;
16 | 
17 | @Module(library = true, complete = false) public class ApiModule {
18 | 
19 |   private static String API_BASE_URL = "http://jsonplaceholder.typicode.com";
20 | 
21 |   @Provides @Singleton PhotoRestService provideOrderRatingService(OkHttpClient httpClient) {
22 |     return create(httpClient);
23 |   }
24 | 
25 |   public static PhotoRestService create(OkHttpClient client) {
26 |     return new Retrofit.Builder().addConverterFactory(GsonConverterFactory.create())
27 |         .addCallAdapterFactory(RxJavaCallAdapterFactory.create())
28 |         .baseUrl(API_BASE_URL)
29 |         .client(client)
30 |         .build()
31 |         .create(PhotoRestService.class);
32 |   }
33 | 
34 |   @Provides @Singleton OkHttpClient provideHttpClient() {
35 |     return createOkHttpClient();
36 |   }
37 | 
38 |   private static OkHttpClient createOkHttpClient() {
39 |     OkHttpClient.Builder builder = new OkHttpClient.Builder();
40 |     if (BuildConfig.DEBUG) {
41 |       HttpLoggingInterceptor interceptor =
42 |           new HttpLoggingInterceptor().setLevel(HttpLoggingInterceptor.Level.BODY);
43 |       builder.addInterceptor(interceptor);
44 |     }
45 |     return builder.build();
46 |   }
47 | 
48 |   @Provides @Singleton Picasso providePicasso(OkHttpClient httpClient, Context context) {
49 | 
50 |     Picasso.Builder builder = new Picasso.Builder(context);
51 |     Picasso picasso = builder.downloader(new OkHttp3Downloader(httpClient)).build();
52 | 
53 |     return picasso;
54 |   }
55 | }
56 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/data/repository/datastore/PreferencesPhotoStatisticsEntityStore.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.data.repository.datastore;
 2 | 
 3 | import android.content.Context;
 4 | 
 5 | import com.photoviewer.data.entity.PhotoStatisticsEntity;
 6 | import com.photoviewer.data.preferences.orm.PreferencesDao;
 7 | 
 8 | import javax.inject.Inject;
 9 | import lombok.Setter;
10 | import lombok.experimental.Accessors;
11 | import rx.Observable;
12 | import rx.Subscriber;
13 | 
14 | @Accessors(prefix = "m")
15 | public class PreferencesPhotoStatisticsEntityStore {
16 | 
17 |     @Setter
18 |     private PreferencesDao<PhotoStatisticsEntity> mStatisticsDao;
19 | 
20 |     @Inject
21 |     public PreferencesPhotoStatisticsEntityStore(Context context) {
22 |         setStatisticsDao(new PreferencesDao<>(PhotoStatisticsEntity.class, context));
23 |     }
24 | 
25 |     public Observable<PhotoStatisticsEntity> readStatistics() {
26 |         return Observable.create(new Observable.OnSubscribe<PhotoStatisticsEntity>() {
27 |             @Override
28 |             public void call(Subscriber<? super PhotoStatisticsEntity> subscriber) {
29 |                 try {
30 |                     PhotoStatisticsEntity statistics = mStatisticsDao.read();
31 |                     subscriber.onNext(statistics);
32 |                     subscriber.onCompleted();
33 |                 } catch (Throwable e) {
34 |                     subscriber.onError(e);
35 |                 }
36 |             }
37 |         });
38 |     }
39 | 
40 |     public Observable<PhotoStatisticsEntity> updateStatistics(PhotoStatisticsEntity photoStatisticsEntity) {
41 |         return Observable.create(new Observable.OnSubscribe<PhotoStatisticsEntity>() {
42 |             @Override
43 |             public void call(Subscriber<? super PhotoStatisticsEntity> subscriber) {
44 |                 try {
45 |                     PhotoStatisticsEntity oldStatistics = mStatisticsDao.read();
46 |                     mStatisticsDao.save(photoStatisticsEntity);
47 |                     subscriber.onNext(oldStatistics);
48 |                     subscriber.onCompleted();
49 |                 } catch (Throwable e) {
50 |                     subscriber.onError(e);
51 |                 }
52 |             }
53 |         });
54 |     }
55 | }
56 | 


--------------------------------------------------------------------------------
/app/src/main/res/layout/activity_photo_list.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3 |     xmlns:app="http://schemas.android.com/apk/res-auto"
 4 |     android:layout_width="match_parent"
 5 |     android:layout_height="match_parent">
 6 | 
 7 |     <android.support.design.widget.AppBarLayout
 8 |         android:layout_width="match_parent"
 9 |         android:layout_height="wrap_content"
10 |         android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">
11 | 
12 |         <android.support.v7.widget.Toolbar
13 |             android:id="@+id/toolbar"
14 |             android:layout_width="match_parent"
15 |             android:layout_height="wrap_content"
16 |             app:layout_scrollFlags="scroll|enterAlways"
17 |             app:popupTheme="@style/ThemeOverlay.AppCompat.Light">
18 | 
19 |             <RelativeLayout
20 |                 android:layout_width="wrap_content"
21 |                 android:layout_height="wrap_content">
22 | 
23 |                 <ImageView
24 |                     android:id="@+id/last_opened_photo_image_view"
25 |                     android:layout_width="wrap_content"
26 |                     android:layout_height="wrap_content"
27 |                     android:adjustViewBounds="true"
28 |                     android:src="@drawable/ic_error_outline_black"/>
29 | 
30 |                 <TextView
31 |                     android:id="@+id/opened_photo_count_text_view"
32 |                     android:layout_width="wrap_content"
33 |                     android:layout_height="wrap_content"
34 |                     android:layout_centerInParent="true"
35 |                     android:textColor="@android:color/white"
36 |                     android:textSize="24sp"/>
37 |             </RelativeLayout>
38 |         </android.support.v7.widget.Toolbar>
39 | 
40 |     </android.support.design.widget.AppBarLayout>
41 | 
42 |     <android.support.v7.widget.RecyclerView
43 |         android:id="@+id/photos_list"
44 |         android:layout_width="match_parent"
45 |         android:layout_height="match_parent"
46 |         android:scrollbars="vertical"
47 |         app:layout_behavior="@string/appbar_scrolling_view_behavior" />
48 | 
49 |     <include layout="@layout/view_progress" />
50 | 
51 |     <include layout="@layout/view_retry" />
52 | 
53 | </android.support.design.widget.CoordinatorLayout>


--------------------------------------------------------------------------------
/gradlew.bat:
--------------------------------------------------------------------------------
 1 | @if "%DEBUG%" == "" @echo off
 2 | @rem ##########################################################################
 3 | @rem
 4 | @rem  Gradle startup script for Windows
 5 | @rem
 6 | @rem ##########################################################################
 7 | 
 8 | @rem Set local scope for the variables with windows NT shell
 9 | if "%OS%"=="Windows_NT" setlocal
10 | 
11 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
12 | set DEFAULT_JVM_OPTS=
13 | 
14 | set DIRNAME=%~dp0
15 | if "%DIRNAME%" == "" set DIRNAME=.
16 | set APP_BASE_NAME=%~n0
17 | set APP_HOME=%DIRNAME%
18 | 
19 | @rem Find java.exe
20 | if defined JAVA_HOME goto findJavaFromJavaHome
21 | 
22 | set JAVA_EXE=java.exe
23 | %JAVA_EXE% -version >NUL 2>&1
24 | if "%ERRORLEVEL%" == "0" goto init
25 | 
26 | echo.
27 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
28 | echo.
29 | echo Please set the JAVA_HOME variable in your environment to match the
30 | echo location of your Java installation.
31 | 
32 | goto fail
33 | 
34 | :findJavaFromJavaHome
35 | set JAVA_HOME=%JAVA_HOME:"=%
36 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe
37 | 
38 | if exist "%JAVA_EXE%" goto init
39 | 
40 | echo.
41 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
42 | echo.
43 | echo Please set the JAVA_HOME variable in your environment to match the
44 | echo location of your Java installation.
45 | 
46 | goto fail
47 | 
48 | :init
49 | @rem Get command-line arguments, handling Windowz variants
50 | 
51 | if not "%OS%" == "Windows_NT" goto win9xME_args
52 | if "%@eval[2+2]" == "4" goto 4NT_args
53 | 
54 | :win9xME_args
55 | @rem Slurp the command line arguments.
56 | set CMD_LINE_ARGS=
57 | set _SKIP=2
58 | 
59 | :win9xME_args_slurp
60 | if "x%~1" == "x" goto execute
61 | 
62 | set CMD_LINE_ARGS=%*
63 | goto execute
64 | 
65 | :4NT_args
66 | @rem Get arguments from the 4NT Shell from JP Software
67 | set CMD_LINE_ARGS=%$
68 | 
69 | :execute
70 | @rem Setup the command line
71 | 
72 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
73 | 
74 | @rem Execute Gradle
75 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
76 | 
77 | :end
78 | @rem End local scope for the variables with windows NT shell
79 | if "%ERRORLEVEL%"=="0" goto mainEnd
80 | 
81 | :fail
82 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
83 | rem the _cmd.exe /c_ return code!
84 | if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
85 | exit /b 1
86 | 
87 | :mainEnd
88 | if "%OS%"=="Windows_NT" endlocal
89 | 
90 | :omega
91 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/data/repository/PhotoEntityDataSource.java:
--------------------------------------------------------------------------------
 1 | package com.photoviewer.data.repository;
 2 | 
 3 | import com.photoviewer.data.entity.PhotoEntity;
 4 | import com.photoviewer.data.repository.datastore.DatabasePhotoEntityStore;
 5 | import com.photoviewer.data.repository.datastore.ServerPhotoEntityStore;
 6 | import com.photoviewer.domain.repository.PhotoRepository;
 7 | 
 8 | import java.util.List;
 9 | 
10 | import javax.inject.Inject;
11 | import rx.Observable;
12 | import rx.Observer;
13 | import rx.Subscriber;
14 | 
15 | public class PhotoEntityDataSource implements PhotoRepository {
16 | 
17 |     private DatabasePhotoEntityStore mDatabasePhotoEntityStore;
18 |     private ServerPhotoEntityStore mServerPhotoEntityStore;
19 | 
20 |     @Inject
21 |     public PhotoEntityDataSource(DatabasePhotoEntityStore databasePhotoEntityStore, ServerPhotoEntityStore serverPhotoEntityStore) {
22 |         mDatabasePhotoEntityStore = databasePhotoEntityStore;
23 |         mServerPhotoEntityStore = serverPhotoEntityStore;
24 |     }
25 | 
26 |     @Override
27 |     public Observable<List<PhotoEntity>> photos() {
28 |         return Observable.create(new Observable.OnSubscribe<List<PhotoEntity>>() {
29 |             @Override
30 |             public void call(Subscriber<? super List<PhotoEntity>> subscriber) {
31 |                 queryDatabaseForAll(subscriber);
32 |             }
33 |         });
34 |     }
35 | 
36 |     @Override
37 |     public Observable<List<PhotoEntity>> searchPhotosByTitle(String title) {
38 |         return mDatabasePhotoEntityStore.queryForTitle(title);
39 |     }
40 | 
41 |     @Override
42 |     public Observable<PhotoEntity> photo(int photoId) {
43 |         return mDatabasePhotoEntityStore.queryForId(photoId);
44 |     }
45 | 
46 |     private void queryDatabaseForAll(final Subscriber<? super List<PhotoEntity>> subscriber) {
47 |         mDatabasePhotoEntityStore.queryForAll().subscribe(new Observer<List<PhotoEntity>>() {
48 |             @Override
49 |             public void onCompleted() {
50 | 
51 |             }
52 | 
53 |             @Override
54 |             public void onError(Throwable e) {
55 |                 subscriber.onError(e);
56 |                 fetchServerForAll(subscriber);
57 |             }
58 | 
59 |             @Override
60 |             public void onNext(List<PhotoEntity> photoEntities) {
61 |                 if (photoEntities.size() != 0) {
62 |                     subscriber.onNext(photoEntities);
63 |                     subscriber.onCompleted();
64 |                 } else {
65 |                     fetchServerForAll(subscriber);
66 |                 }
67 |             }
68 |         });
69 |     }
70 | 
71 |     private void fetchServerForAll(Subscriber<? super List<PhotoEntity>> subscriber) {
72 |         mServerPhotoEntityStore.photoEntityList().subscribe(new Observer<List<PhotoEntity>>() {
73 |             @Override
74 |             public void onCompleted() {
75 |                 subscriber.onCompleted();
76 |             }
77 | 
78 |             @Override
79 |             public void onError(Throwable e) {
80 |                 subscriber.onError(e);
81 |             }
82 | 
83 |             @Override
84 |             public void onNext(List<PhotoEntity> photoEntities) {
85 |                 subscriber.onNext(photoEntities);
86 |                 mDatabasePhotoEntityStore.
87 |                         saveAll(photoEntities).
88 |                         subscribe();
89 |             }
90 |         });
91 |     }
92 | }
93 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/presentation/presenter/PhotoDetailsPresenter.java:
--------------------------------------------------------------------------------
  1 | package com.photoviewer.presentation.presenter;
  2 | 
  3 | import android.support.annotation.NonNull;
  4 | 
  5 | import com.photoviewer.domain.Photo;
  6 | import com.photoviewer.domain.usecases.GetPhotoDetails;
  7 | import com.photoviewer.domain.usecases.SimpleSubscriber;
  8 | import com.photoviewer.presentation.mapper.photo.PhotoToPhotoModel;
  9 | import com.photoviewer.presentation.model.PhotoModel;
 10 | import com.photoviewer.presentation.view.PhotoDetailsView;
 11 | import javax.inject.Inject;
 12 | 
 13 | /**
 14 |  * {@link Presenter} that controls communication between views and models of the presentation
 15 |  * layer.
 16 |  */
 17 | public class PhotoDetailsPresenter extends SimplePresenter {
 18 | 
 19 |     private final GetPhotoDetails mGetPhotoDetailsUseCase;
 20 |     private final PhotoToPhotoModel mPhotoModelTransformer;
 21 |     /**
 22 |      * id used to retrieve photo details
 23 |      */
 24 |     private int mPhotoId;
 25 |     private PhotoDetailsView mViewDetailsView;
 26 | 
 27 |     @Inject
 28 |     public PhotoDetailsPresenter(GetPhotoDetails getPhotoDetailsUseCase) {
 29 |         mGetPhotoDetailsUseCase = getPhotoDetailsUseCase;
 30 |         mPhotoModelTransformer = new PhotoToPhotoModel();
 31 |     }
 32 | 
 33 |     public void setView(@NonNull PhotoDetailsView view) {
 34 |         mViewDetailsView = view;
 35 |     }
 36 | 
 37 |     @Override
 38 |     public void destroy() {
 39 |         mGetPhotoDetailsUseCase.unsubscribe();
 40 |     }
 41 | 
 42 |     /**
 43 |      * Initializes the presenter by start retrieving photo details.
 44 |      */
 45 |     public void initialize(int photoId) {
 46 |         mPhotoId = photoId;
 47 |         loadPhotoDetails();
 48 |     }
 49 | 
 50 |     /**
 51 |      * Loads photo details.
 52 |      */
 53 |     private void loadPhotoDetails() {
 54 |         hideViewRetry();
 55 |         showViewLoading();
 56 |         getPhotoDetails();
 57 |     }
 58 | 
 59 |     private void showViewLoading() {
 60 |         mViewDetailsView.showLoading();
 61 |     }
 62 | 
 63 |     private void hideViewLoading() {
 64 |         mViewDetailsView.hideLoading();
 65 |     }
 66 | 
 67 |     private void showViewRetry() {
 68 |         mViewDetailsView.showRetry();
 69 |     }
 70 | 
 71 |     private void hideViewRetry() {
 72 |         mViewDetailsView.hideRetry();
 73 |     }
 74 | 
 75 |     private void showErrorMessage() {
 76 |         //TODO implement
 77 |         String errorMessage = "Error happened";
 78 |         mViewDetailsView.showError(errorMessage);
 79 |     }
 80 | 
 81 |     private void showPhotoDetailsInView(Photo photo) {
 82 |         final PhotoModel photoModel = mPhotoModelTransformer.transform(photo);
 83 |         mViewDetailsView.renderPhoto(photoModel);
 84 |     }
 85 | 
 86 |     private void getPhotoDetails() {
 87 |         mGetPhotoDetailsUseCase.setPhotoId(mPhotoId);
 88 |         mGetPhotoDetailsUseCase.execute(new PhotoDetailsSubscriber());
 89 |     }
 90 | 
 91 |     private final class PhotoDetailsSubscriber extends SimpleSubscriber<Photo> {
 92 | 
 93 |         @Override
 94 |         public void onCompleted() {
 95 |             PhotoDetailsPresenter.this.hideViewLoading();
 96 |         }
 97 | 
 98 |         @Override
 99 |         public void onError(Throwable e) {
100 |             PhotoDetailsPresenter.this.hideViewLoading();
101 |             PhotoDetailsPresenter.this.showErrorMessage();
102 |             PhotoDetailsPresenter.this.showViewRetry();
103 |         }
104 | 
105 |         @Override
106 |         public void onNext(Photo photo) {
107 |             PhotoDetailsPresenter.this.showPhotoDetailsInView(photo);
108 |         }
109 |     }
110 | }
111 | 


--------------------------------------------------------------------------------
/app/src/test/java/com/photoviewer/data/repository/PhotoEntityDataSourceTest.kt:
--------------------------------------------------------------------------------
  1 | @file:Suppress("IllegalIdentifier")
  2 | 
  3 | package com.photoviewer.data.repository
  4 | 
  5 | import com.nhaarman.mockito_kotlin.mock
  6 | import com.nhaarman.mockito_kotlin.whenever
  7 | import com.photoviewer.data.entity.PhotoEntity
  8 | import com.photoviewer.data.repository.datastore.DatabasePhotoEntityStore
  9 | import com.photoviewer.data.repository.datastore.ServerPhotoEntityStore
 10 | import com.photoviewer.domain.usecases.SimpleSubscriber
 11 | import org.junit.Before
 12 | import org.junit.Test
 13 | import org.mockito.Mockito.verify
 14 | import org.mockito.Mockito.verifyZeroInteractions
 15 | import rx.Observable.just
 16 | import java.util.*
 17 | 
 18 | class PhotoEntityDataSourceTest {
 19 | 
 20 |     private val mDatabasePhotoEntityStore: DatabasePhotoEntityStore = mock()
 21 |     private val mServerPhotoEntityStore: ServerPhotoEntityStore = mock()
 22 | 
 23 |     private lateinit var mPhotoEntityDataSource: PhotoEntityDataSource
 24 | 
 25 |     companion object {
 26 |         private val FAKE_PHOTO_ID = 31
 27 |     }
 28 | 
 29 |     @Before fun setUp() {
 30 |         mPhotoEntityDataSource = PhotoEntityDataSource(mDatabasePhotoEntityStore, mServerPhotoEntityStore)
 31 |     }
 32 | 
 33 |     @Test fun `should query database on getting photos`() {
 34 |         val photosList = createPhotosList()
 35 | 
 36 |         assumeDatabaseIsEmpty()
 37 |         assumeServerHasRequestedContent(photosList)
 38 | 
 39 |         mPhotoEntityDataSource.photos().subscribe(SimpleSubscriber<List<PhotoEntity>>())
 40 | 
 41 |         verify(mDatabasePhotoEntityStore).queryForAll()
 42 |     }
 43 | 
 44 |     @Test fun `should query server on getting photos if database does not have them`() {
 45 |         val photosList = createPhotosList()
 46 | 
 47 |         assumeDatabaseIsEmpty()
 48 |         assumeServerHasRequestedContent(photosList)
 49 | 
 50 |         mPhotoEntityDataSource.photos().subscribe(SimpleSubscriber<List<PhotoEntity>>())
 51 | 
 52 |         verify(mServerPhotoEntityStore).photoEntityList()
 53 |     }
 54 | 
 55 |     @Test fun `should save retrieved photos from server on getting photos`() {
 56 |         val photosList = createPhotosList()
 57 | 
 58 |         assumeDatabaseIsEmpty()
 59 |         assumeServerHasRequestedContent(photosList)
 60 | 
 61 |         mPhotoEntityDataSource.photos().subscribe(SimpleSubscriber<List<PhotoEntity>>())
 62 | 
 63 |         verify(mDatabasePhotoEntityStore).saveAll(photosList)
 64 |     }
 65 | 
 66 |     private fun createPhotosList() = ArrayList<PhotoEntity>().apply {
 67 |         add(PhotoEntity())
 68 |     }
 69 | 
 70 |     private fun assumeDatabaseIsEmpty() {
 71 |         whenever(mDatabasePhotoEntityStore.queryForAll()).thenReturn(
 72 |                 just<List<PhotoEntity>>(ArrayList<PhotoEntity>()))
 73 |     }
 74 | 
 75 |     private fun assumeServerHasRequestedContent(photosList: List<PhotoEntity>) {
 76 |         whenever(mServerPhotoEntityStore.photoEntityList()).thenReturn(just<List<PhotoEntity>>(photosList))
 77 |     }
 78 | 
 79 |     @Test fun `should not query server on getting photos if database has them`() {
 80 |         val photoEntities = createPhotosList()
 81 |         assumeDatabaseHasRequestesContent(photoEntities)
 82 |         assumeServerHasRequestedContent(photoEntities)
 83 | 
 84 |         mPhotoEntityDataSource.photos().subscribe()
 85 | 
 86 |         verify(mDatabasePhotoEntityStore).queryForAll()
 87 |         verifyZeroInteractions(mServerPhotoEntityStore)
 88 |     }
 89 | 
 90 |     private fun assumeDatabaseHasRequestesContent(photoEntities: List<PhotoEntity>) {
 91 |         whenever(mDatabasePhotoEntityStore.queryForAll()).thenReturn(just<List<PhotoEntity>>(photoEntities))
 92 |     }
 93 | 
 94 |     @Test fun `should query only database on getting particular photo`() {
 95 |         val photoEntity = PhotoEntity()
 96 |         whenever(mDatabasePhotoEntityStore.queryForId(FAKE_PHOTO_ID)).thenReturn(
 97 |                 just(photoEntity))
 98 | 
 99 |         mPhotoEntityDataSource.photo(FAKE_PHOTO_ID).subscribe()
100 | 
101 |         verify(mDatabasePhotoEntityStore).queryForId(FAKE_PHOTO_ID)
102 |     }
103 | }
104 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/data/repository/datastore/DatabasePhotoEntityStore.java:
--------------------------------------------------------------------------------
  1 | package com.photoviewer.data.repository.datastore;
  2 | 
  3 | import android.util.Log;
  4 | 
  5 | import com.j256.ormlite.dao.Dao;
  6 | import com.j256.ormlite.misc.TransactionManager;
  7 | import com.j256.ormlite.stmt.PreparedQuery;
  8 | import com.j256.ormlite.stmt.QueryBuilder;
  9 | import com.j256.ormlite.stmt.SelectArg;
 10 | import com.photoviewer.data.entity.PhotoEntity;
 11 | import com.photoviewer.data.db.DatabaseManager;
 12 | 
 13 | import java.sql.SQLException;
 14 | import java.util.Collection;
 15 | import java.util.List;
 16 | 
 17 | import javax.inject.Inject;
 18 | import rx.Observable;
 19 | import rx.Subscriber;
 20 | 
 21 | public class DatabasePhotoEntityStore {
 22 | 
 23 |     private static final String LOG_TAG = DatabasePhotoEntityStore.class.getSimpleName();
 24 |     private static final String PERCENT = "%";
 25 | 
 26 |     private Dao<PhotoEntity, Integer> mPhotosDao;
 27 | 
 28 |     //Search prepared fields, for faster search
 29 |     private PreparedQuery<PhotoEntity> mSearchByTitleQuery;
 30 |     private SelectArg mSearchByTitleQuerySelectArg;
 31 | 
 32 |     @Inject
 33 |     public DatabasePhotoEntityStore(DatabaseManager databaseManager) {
 34 |         mPhotosDao = databaseManager.getPhotosDao();
 35 |         prepareSearchByTitleQuery();
 36 |     }
 37 | 
 38 |     public Observable<List<PhotoEntity>> queryForAll() {
 39 |         return Observable.create(new Observable.OnSubscribe<List<PhotoEntity>>() {
 40 |             @Override
 41 |             public void call(Subscriber<? super List<PhotoEntity>> subscriber) {
 42 |                 try {
 43 |                     List<PhotoEntity> photos = mPhotosDao.queryForAll();
 44 |                     subscriber.onNext(photos);
 45 |                     subscriber.onCompleted();
 46 |                 } catch (SQLException e) {
 47 |                     subscriber.onError(e);
 48 |                 }
 49 |             }
 50 |         });
 51 |     }
 52 | 
 53 |     public Observable<Void> saveAll(final Collection<PhotoEntity> entities) {
 54 |         return Observable.create(new Observable.OnSubscribe<Void>() {
 55 |             @Override
 56 |             public void call(Subscriber<? super Void> subscriber) {
 57 |                 try {
 58 |                     saveAllSynchronous(entities);
 59 |                     subscriber.onNext(null);
 60 |                     subscriber.onCompleted();
 61 |                 } catch (SQLException e) {
 62 |                     subscriber.onError(e);
 63 |                 }
 64 |             }
 65 |         });
 66 |     }
 67 | 
 68 |     public void saveAllSynchronous(final Collection<PhotoEntity> entities) throws SQLException {
 69 |         TransactionManager.callInTransaction(mPhotosDao.getConnectionSource(),
 70 |                 () -> {
 71 |                     for (PhotoEntity photoEntity : entities) {
 72 |                         mPhotosDao.createOrUpdate(photoEntity);
 73 |                     }
 74 |                     return null;
 75 |                 });
 76 |     }
 77 | 
 78 |     public Observable<PhotoEntity> queryForId(int photoId) {
 79 |         return Observable.create(new Observable.OnSubscribe<PhotoEntity>() {
 80 |             @Override
 81 |             public void call(Subscriber<? super PhotoEntity> subscriber) {
 82 |                 try {
 83 |                     PhotoEntity photo = mPhotosDao.queryForId(photoId);
 84 |                     subscriber.onNext(photo);
 85 |                     subscriber.onCompleted();
 86 |                 } catch (SQLException e) {
 87 |                     subscriber.onError(e);
 88 |                 }
 89 |             }
 90 |         });
 91 |     }
 92 | 
 93 |     public Observable<List<PhotoEntity>> queryForTitle(String title) {
 94 |         return Observable.create(new Observable.OnSubscribe<List<PhotoEntity>>() {
 95 |             @Override
 96 |             public void call(Subscriber<? super List<PhotoEntity>> subscriber) {
 97 |                 try {
 98 |                     mSearchByTitleQuerySelectArg.setValue(PERCENT + title + PERCENT);
 99 |                     List<PhotoEntity> photos = mPhotosDao.query(mSearchByTitleQuery);
100 |                     subscriber.onNext(photos);
101 |                     subscriber.onCompleted();
102 |                 } catch (SQLException e) {
103 |                     subscriber.onError(e);
104 |                 }
105 |             }
106 |         });
107 |     }
108 | 
109 |     private void prepareSearchByTitleQuery() {
110 |         try {
111 |             QueryBuilder<PhotoEntity, Integer> queryBuilder = mPhotosDao.queryBuilder();
112 |             mSearchByTitleQuerySelectArg = new SelectArg();
113 |             queryBuilder.where().like(PhotoEntity.Fields.TITLE, mSearchByTitleQuerySelectArg);
114 |             mSearchByTitleQuery = queryBuilder.prepare();
115 |         } catch (SQLException e) {
116 |             Log.wtf(LOG_TAG, "Preparing of SearchByTitleQuery failed", e);
117 |         }
118 |     }
119 | }
120 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/presentation/view/activity/PhotoDetailsActivity.java:
--------------------------------------------------------------------------------
  1 | package com.photoviewer.presentation.view.activity;
  2 | 
  3 | import android.content.Context;
  4 | import android.content.Intent;
  5 | import android.os.Bundle;
  6 | import android.view.View;
  7 | import android.widget.Button;
  8 | import android.widget.ImageView;
  9 | import android.widget.RelativeLayout;
 10 | import android.widget.TextView;
 11 | import android.widget.Toast;
 12 | import butterknife.BindView;
 13 | import com.photoviewer.R;
 14 | import com.photoviewer.presentation.model.PhotoModel;
 15 | import com.photoviewer.presentation.presenter.PhotoDetailsPresenter;
 16 | import com.photoviewer.presentation.view.PhotoDetailsView;
 17 | import com.squareup.picasso.Picasso;
 18 | import javax.inject.Inject;
 19 | 
 20 | /**
 21 |  * Activity that shows details of a certain photo.
 22 |  */
 23 | public class PhotoDetailsActivity extends DiAppCompatActivity implements PhotoDetailsView {
 24 | 
 25 |     private static final String INTENT_EXTRA_PARAM_PHOTO_ID = "INTENT_PARAM_PHOTO_ID";
 26 |     private static final String INSTANCE_STATE_PARAM_PHOTO_ID = "STATE_PARAM_PHOTO_ID";
 27 | 
 28 |     @Inject PhotoDetailsPresenter mPhotoDetailsPresenter;
 29 |     @Inject Picasso mPicasso;
 30 | 
 31 |     //Content Views
 32 |     @BindView(R.id.cover_image_view) ImageView mCoverImageView;
 33 |     @BindView(R.id.title_text_view) TextView mTitleTextView;
 34 | 
 35 |     //Data Loading Views
 36 |     @BindView(R.id.progress_layout) RelativeLayout mProgressView;
 37 |     @BindView(R.id.retry_layout) RelativeLayout mRetryView;
 38 |     @BindView(R.id.retry_button) Button mRetryButton;
 39 | 
 40 |     private int mPhotoId;
 41 | 
 42 |     public static Intent getCallingIntent(Context context, int photoId) {
 43 |         Intent callingIntent = new Intent(context, PhotoDetailsActivity.class);
 44 |         callingIntent.putExtra(INTENT_EXTRA_PARAM_PHOTO_ID, photoId);
 45 | 
 46 |         return callingIntent;
 47 |     }
 48 | 
 49 |     @Override
 50 |     protected void onCreate(Bundle savedInstanceState) {
 51 |         super.onCreate(savedInstanceState);
 52 | 
 53 |         setContentView(R.layout.activity_photo_details);
 54 | 
 55 |         initialize(savedInstanceState);
 56 |         setUpUI();
 57 |     }
 58 | 
 59 |     @Override
 60 |     protected void onSaveInstanceState(Bundle outState) {
 61 |         if (outState != null) {
 62 |             outState.putInt(INSTANCE_STATE_PARAM_PHOTO_ID, mPhotoId);
 63 |         }
 64 |         super.onSaveInstanceState(outState);
 65 |     }
 66 | 
 67 |     /**
 68 |      * Initializes this activity.
 69 |      */
 70 |     private void initialize(Bundle savedInstanceState) {
 71 |         if (savedInstanceState == null) {
 72 |             this.mPhotoId = getIntent().getIntExtra(INTENT_EXTRA_PARAM_PHOTO_ID, -1);
 73 |         } else {
 74 |             this.mPhotoId = savedInstanceState.getInt(INSTANCE_STATE_PARAM_PHOTO_ID);
 75 |         }
 76 |         mPhotoDetailsPresenter.setView(this);
 77 |         mPhotoDetailsPresenter.initialize(mPhotoId);
 78 |     }
 79 | 
 80 |     private void setUpUI() {
 81 | //        setSupportActionBar(mToolbar);
 82 | 
 83 |         mRetryButton.setOnClickListener(v -> onButtonRetryClick());
 84 |     }
 85 | 
 86 |     @Override
 87 |     public void onResume() {
 88 |         super.onResume();
 89 |         this.mPhotoDetailsPresenter.resume();
 90 |     }
 91 | 
 92 |     @Override
 93 |     public void onPause() {
 94 |         super.onPause();
 95 |         mPhotoDetailsPresenter.pause();
 96 |     }
 97 | 
 98 |     @Override
 99 |     public void onDestroy() {
100 |         super.onDestroy();
101 |         mPhotoDetailsPresenter.destroy();
102 |     }
103 | 
104 |     @Override
105 |     public void showLoading() {
106 |         mProgressView.setVisibility(View.VISIBLE);
107 |         setProgressBarIndeterminateVisibility(true);
108 |     }
109 | 
110 |     @Override
111 |     public void hideLoading() {
112 |         mProgressView.setVisibility(View.GONE);
113 |         setProgressBarIndeterminateVisibility(false);
114 |     }
115 | 
116 |     @Override
117 |     public void showRetry() {
118 |         mRetryView.setVisibility(View.VISIBLE);
119 |     }
120 | 
121 |     @Override
122 |     public void hideRetry() {
123 |         mRetryView.setVisibility(View.GONE);
124 |     }
125 | 
126 |     @Override
127 |     public void showError(String message) {
128 |         showToastMessage(message);
129 |     }
130 | 
131 |     private void showToastMessage(String message) {
132 |         Toast.makeText(this, message, Toast.LENGTH_SHORT).show();
133 |     }
134 | 
135 |     /**
136 |      * Loads all photos.
137 |      */
138 |     private void loadPhotoDetails() {
139 |         if (mPhotoDetailsPresenter != null) {
140 |             mPhotoDetailsPresenter.initialize(mPhotoId);
141 |         }
142 |     }
143 | 
144 |     void onButtonRetryClick() {
145 |         loadPhotoDetails();
146 |     }
147 | 
148 |     @Override
149 |     public void renderPhoto(PhotoModel photoModel) {
150 |         if (photoModel != null) {
151 |             mPicasso.load(photoModel.getUrl())
152 |                     .placeholder(R.drawable.ic_crop_original_black)
153 |                     .error(R.drawable.ic_error_outline_black)
154 |                     .into(mCoverImageView);
155 |             mTitleTextView.setText(photoModel.getTitle());
156 |         }
157 |     }
158 | }
159 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/presentation/view/adapter/PhotoAdapter.java:
--------------------------------------------------------------------------------
  1 | package com.photoviewer.presentation.view.adapter;
  2 | 
  3 | import android.content.Context;
  4 | import android.support.v7.widget.RecyclerView;
  5 | import android.text.Html;
  6 | import android.view.LayoutInflater;
  7 | import android.view.View;
  8 | import android.view.ViewGroup;
  9 | import android.widget.ImageView;
 10 | import android.widget.TextView;
 11 | import com.photoviewer.R;
 12 | import com.photoviewer.presentation.model.PhotoModel;
 13 | import com.photoviewer.presentation.view.utils.ImageRoundedCornersTransformation;
 14 | import com.squareup.picasso.Picasso;
 15 | import com.squareup.picasso.Transformation;
 16 | import java.util.Collection;
 17 | import java.util.List;
 18 | 
 19 | /**
 20 |  * Adapter that manages a collection of {@link PhotoModel}.
 21 |  */
 22 | public class PhotoAdapter extends RecyclerView.Adapter<PhotoAdapter.PhotoViewHolder> {
 23 | 
 24 |     private final LayoutInflater mLayoutInflater;
 25 |     private final Context mContext;
 26 |   private final Picasso mPicasso;
 27 |   private List<PhotoModel> mPhotoModelsList;
 28 |     private OnItemClickListener mOnItemClickListener;
 29 |     private Transformation mImageTransformation;
 30 | 
 31 | 
 32 |     //Highlighting
 33 |     private String mTextToHighlight;
 34 |     private static final String STRING_PREPARED_HIGHLIGHT_MARKUP = "<font color='red'>%s</font>";
 35 | 
 36 |   public PhotoAdapter(Context context, Collection<PhotoModel> photoModelsCollection,
 37 |       Picasso picasso) {
 38 |     validatePhotosCollection(photoModelsCollection);
 39 |     mContext = context;
 40 |     mLayoutInflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
 41 |     mPhotoModelsList = (List<PhotoModel>) photoModelsCollection;
 42 |     mPicasso = picasso;
 43 | 
 44 |     setupTransformation();
 45 |   }
 46 | 
 47 |     public void highlightText(String textToHighlight) {
 48 |         mTextToHighlight = textToHighlight;
 49 |     }
 50 | 
 51 |     @Override
 52 |     public int getItemCount() {
 53 |         return (mPhotoModelsList != null) ? mPhotoModelsList.size() : 0;
 54 |     }
 55 | 
 56 |     @Override
 57 |     public PhotoViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
 58 |         View view = mLayoutInflater.inflate(R.layout.list_item_photo, parent, false);
 59 |         PhotoViewHolder photoViewHolder = new PhotoViewHolder(view);
 60 | 
 61 |         return photoViewHolder;
 62 |     }
 63 | 
 64 |   @Override public void onBindViewHolder(PhotoViewHolder holder, final int position) {
 65 |     final PhotoModel photoModel = mPhotoModelsList.get(position);
 66 |     setText(holder.mTextViewTitle, photoModel.getTitle());
 67 |     mPicasso.load(photoModel.getThumbnailUrl())
 68 |         .placeholder(R.drawable.ic_crop_original_black)
 69 |         .error(R.drawable.ic_error_outline_black)
 70 |         .transform(mImageTransformation)
 71 |         .into(holder.mPhotoImageView);
 72 | 
 73 |     holder.itemView.setOnClickListener(v -> {
 74 |       if (PhotoAdapter.this.mOnItemClickListener != null) {
 75 |         PhotoAdapter.this.mOnItemClickListener.onItemClicked(photoModel);
 76 |       }
 77 |     });
 78 |   }
 79 | 
 80 |     private void setText(TextView textView, String original) {
 81 |         if (mTextToHighlight != null && !mTextToHighlight.isEmpty()) {
 82 |             String preparedMarkup = String.format(STRING_PREPARED_HIGHLIGHT_MARKUP, mTextToHighlight);
 83 |             String highlighted = original.replaceAll(mTextToHighlight, preparedMarkup);
 84 |             textView.setText(Html.fromHtml(highlighted));
 85 |         } else {
 86 |             textView.setText(original);
 87 |         }
 88 |     }
 89 | 
 90 |     @Override
 91 |     public long getItemId(int position) {
 92 |         return position;
 93 |     }
 94 | 
 95 |     public void setPhotosCollection(Collection<PhotoModel> photoModelsCollection) {
 96 |         validatePhotosCollection(photoModelsCollection);
 97 |         mPhotoModelsList = (List<PhotoModel>) photoModelsCollection;
 98 |         notifyDataSetChanged();
 99 |     }
100 | 
101 |     public void setOnItemClickListener(OnItemClickListener onItemClickListener) {
102 |         mOnItemClickListener = onItemClickListener;
103 |     }
104 | 
105 |     private void setupTransformation() {
106 |         int radius = (int) mContext.getResources().getDimension(R.dimen.list_view_row_icon_rounding_radius);
107 |         mImageTransformation = new ImageRoundedCornersTransformation(radius, 0);
108 |     }
109 | 
110 |     private void validatePhotosCollection(Collection<PhotoModel> photoModelsCollection) {
111 |         if (photoModelsCollection == null) {
112 |             throw new IllegalArgumentException("The list cannot be null");
113 |         }
114 |     }
115 | 
116 |     public interface OnItemClickListener {
117 |         void onItemClicked(PhotoModel photoModel);
118 |     }
119 | 
120 |     static class PhotoViewHolder extends RecyclerView.ViewHolder {
121 |         private TextView mTextViewTitle;
122 |         private ImageView mPhotoImageView;
123 | 
124 |         public PhotoViewHolder(View itemView) {
125 |             super(itemView);
126 |             findViews(itemView);
127 |         }
128 | 
129 |         private void findViews(View itemView) {
130 |             mTextViewTitle = (TextView) itemView.findViewById(R.id.title);
131 |             mPhotoImageView = (ImageView) itemView.findViewById(R.id.avatar);
132 |         }
133 |     }
134 | }
135 | 


--------------------------------------------------------------------------------
/app/build.gradle:
--------------------------------------------------------------------------------
  1 | apply plugin: 'com.android.application'
  2 | apply plugin: 'kotlin-android'
  3 | apply plugin: 'kotlin-android-extensions'
  4 | apply plugin: 'me.tatarka.retrolambda'
  5 | 
  6 | // Libraries versions
  7 | def lib = [lombok        : "1.16.8",
  8 |            kotlin        : "1.1.2-3",
  9 |            dagger        : "1.2.5",
 10 |            butterknife   : "8.6.0",
 11 |            googleSupport : "25.3.1",
 12 |            rxJava        : "1.2.1",
 13 |            ormlite       : "5.0",
 14 |            okhttp3       : "3.8.0",
 15 |            retrofit2     : "2.3.0",
 16 |            picasso       : "2.5.2",
 17 |            testSupport   : "0.5",
 18 |            cucumber      : "1.2.2",
 19 |            espresso      : "2.2.2"]
 20 | 
 21 | android {
 22 |   compileSdkVersion 25
 23 |   buildToolsVersion '25.0.2'
 24 | 
 25 |   defaultConfig {
 26 |     applicationId "com.photoviewer"
 27 |     minSdkVersion 17
 28 |     targetSdkVersion 25
 29 |     versionCode 1
 30 |     versionName "1.0"
 31 |     testInstrumentationRunner "com.photoviewer.cucumber.CucumberTestRunner"
 32 |   }
 33 |   buildTypes {
 34 |     debug {
 35 |       minifyEnabled false
 36 |       buildConfigField "String", "CUCUMBER_TAGS", "\"${getCucumberTags()}\""
 37 |     }
 38 | 
 39 |     release {
 40 |       minifyEnabled false
 41 |       proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
 42 |     }
 43 |   }
 44 | 
 45 |   lintOptions {
 46 |     checkReleaseBuilds false
 47 |     abortOnError false
 48 |   }
 49 | 
 50 |   compileOptions {
 51 |     sourceCompatibility JavaVersion.VERSION_1_8
 52 |     targetCompatibility JavaVersion.VERSION_1_8
 53 |   }
 54 | 
 55 |   packagingOptions {
 56 |     exclude 'META-INF/LICENSE.txt'
 57 |     exclude 'META-INF/NOTICE.txt'
 58 |     exclude 'META-INF/services/javax.annotation.processing.Processor'
 59 |   }
 60 | }
 61 | 
 62 | dependencies {
 63 |   compile fileTree(dir: 'libs', include: ['*.jar'])
 64 | 
 65 |   provided "org.projectlombok:lombok:${lib.lombok}"
 66 |   compile "org.jetbrains.kotlin:kotlin-stdlib:${lib.kotlin}"
 67 | 
 68 |   // Dependency Injection
 69 |   compile "com.squareup.dagger:dagger:${lib.dagger}"
 70 |   provided "com.squareup.dagger:dagger-compiler:${lib.dagger}"
 71 | 
 72 |   // View Injection
 73 |   compile "com.jakewharton:butterknife:${lib.butterknife}"
 74 |   annotationProcessor "com.jakewharton:butterknife-compiler:${lib.butterknife}"
 75 | 
 76 |   // Google libraries
 77 |   compile "com.android.support:support-annotations:${lib.googleSupport}"
 78 |   compile "com.android.support:appcompat-v7:${lib.googleSupport}"
 79 |   compile "com.android.support:design:${lib.googleSupport}"
 80 |   compile "com.android.support:recyclerview-v7:${lib.googleSupport}"
 81 | 
 82 |   // ReactiveX
 83 |   compile "io.reactivex:rxandroid:${lib.rxJava}"
 84 | 
 85 |   // Database
 86 |   compile "com.j256.ormlite:ormlite-core:${lib.ormlite}"
 87 |   compile "com.j256.ormlite:ormlite-android:${lib.ormlite}"
 88 | 
 89 |   // OkHttp
 90 |   compile "com.squareup.okhttp3:okhttp-urlconnection:${lib.okhttp3}"
 91 |   compile "com.squareup.okhttp3:okhttp:${lib.okhttp3}"
 92 |   compile "com.squareup.okhttp3:logging-interceptor:${lib.okhttp3}"
 93 | 
 94 |   // Retrofit
 95 |   compile "com.squareup.retrofit2:retrofit:${lib.retrofit2}"
 96 |   compile "com.squareup.retrofit2:adapter-rxjava:${lib.retrofit2}"
 97 |   compile "com.squareup.retrofit2:converter-gson:${lib.retrofit2}"
 98 | 
 99 |   // Image Loader
100 |   compile "com.squareup.picasso:picasso:${lib.picasso}"
101 |   compile "com.jakewharton.picasso:picasso2-okhttp3-downloader:1.1.0"
102 | 
103 |   // Unit test
104 |   testCompile 'junit:junit:4.12'
105 |   testCompile 'org.mockito:mockito-core:2.6.5'
106 |   testCompile 'org.assertj:assertj-core:1.7.1'
107 | 
108 |   // Kotlin Unit Tests
109 |   testCompile "org.jetbrains.kotlin:kotlin-test:${lib.kotlin}"
110 |   testCompile "org.jetbrains.kotlin:kotlin-test-junit:${lib.kotlin}"
111 |   testCompile "com.nhaarman:mockito-kotlin:1.2.0"
112 | 
113 |   // Android Tests
114 |   androidTestCompile("com.android.support.test:runner:${lib.testSupport}") {
115 |     exclude module: 'support-annotations'
116 |   }
117 |   androidTestCompile("com.android.support.test:rules:${lib.testSupport}") {
118 |     exclude module: 'support-annotations'
119 |   }
120 | 
121 |   // Cucumber
122 |   androidTestCompile "info.cukes:cucumber-android:${lib.cucumber}"
123 |   androidTestCompile "info.cukes:cucumber-picocontainer:${lib.cucumber}"
124 | 
125 |   // Espresso
126 |   androidTestCompile("com.android.support.test.espresso:espresso-core:${lib.espresso}") {
127 |     exclude module: 'support-annotations'
128 |   }
129 |   androidTestCompile ("com.android.support.test.espresso:espresso-idling-resource:${lib.espresso}") {
130 |     exclude module: 'support-annotations'
131 |   }
132 |   androidTestCompile ("com.android.support.test.espresso:espresso-contrib:${lib.espresso}") {
133 |     exclude module: 'support-annotations'
134 |     exclude module: 'appcompat-v7'
135 |     exclude module: 'recyclerview-v7'
136 |     exclude module: 'support-v4'
137 |     exclude module: 'design'
138 |   }
139 | 
140 |   androidTestCompile ("com.jakewharton.espresso:okhttp3-idling-resource:1.0.0") {
141 |     exclude module: 'okio'
142 |     exclude module: 'support-annotations'
143 |     exclude module: 'okhttp'
144 |   }
145 | }
146 | 
147 | /**
148 |  *  Read Cucumber tags from command line like: ./gradlew connectedAndroidTest -Dtags="@functional-scenarios,@nougat"*/
149 | def getCucumberTags() {
150 |   return project.hasProperty("tags") ? project.getProperties().get("tags") : ""
151 | }
152 | 


--------------------------------------------------------------------------------
/gradlew:
--------------------------------------------------------------------------------
  1 | #!/usr/bin/env bash
  2 | 
  3 | ##############################################################################
  4 | ##
  5 | ##  Gradle start up script for UN*X
  6 | ##
  7 | ##############################################################################
  8 | 
  9 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
 10 | DEFAULT_JVM_OPTS=""
 11 | 
 12 | APP_NAME="Gradle"
 13 | APP_BASE_NAME=`basename "$0"`
 14 | 
 15 | # Use the maximum available, or set MAX_FD != -1 to use that value.
 16 | MAX_FD="maximum"
 17 | 
 18 | warn ( ) {
 19 |     echo "$*"
 20 | }
 21 | 
 22 | die ( ) {
 23 |     echo
 24 |     echo "$*"
 25 |     echo
 26 |     exit 1
 27 | }
 28 | 
 29 | # OS specific support (must be 'true' or 'false').
 30 | cygwin=false
 31 | msys=false
 32 | darwin=false
 33 | case "`uname`" in
 34 |   CYGWIN* )
 35 |     cygwin=true
 36 |     ;;
 37 |   Darwin* )
 38 |     darwin=true
 39 |     ;;
 40 |   MINGW* )
 41 |     msys=true
 42 |     ;;
 43 | esac
 44 | 
 45 | # For Cygwin, ensure paths are in UNIX format before anything is touched.
 46 | if $cygwin ; then
 47 |     [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
 48 | fi
 49 | 
 50 | # Attempt to set APP_HOME
 51 | # Resolve links: $0 may be a link
 52 | PRG="$0"
 53 | # Need this for relative symlinks.
 54 | while [ -h "$PRG" ] ; do
 55 |     ls=`ls -ld "$PRG"`
 56 |     link=`expr "$ls" : '.*-> \(.*\)$'`
 57 |     if expr "$link" : '/.*' > /dev/null; then
 58 |         PRG="$link"
 59 |     else
 60 |         PRG=`dirname "$PRG"`"/$link"
 61 |     fi
 62 | done
 63 | SAVED="`pwd`"
 64 | cd "`dirname \"$PRG\"`/" >&-
 65 | APP_HOME="`pwd -P`"
 66 | cd "$SAVED" >&-
 67 | 
 68 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
 69 | 
 70 | # Determine the Java command to use to start the JVM.
 71 | if [ -n "$JAVA_HOME" ] ; then
 72 |     if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
 73 |         # IBM's JDK on AIX uses strange locations for the executables
 74 |         JAVACMD="$JAVA_HOME/jre/sh/java"
 75 |     else
 76 |         JAVACMD="$JAVA_HOME/bin/java"
 77 |     fi
 78 |     if [ ! -x "$JAVACMD" ] ; then
 79 |         die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
 80 | 
 81 | Please set the JAVA_HOME variable in your environment to match the
 82 | location of your Java installation."
 83 |     fi
 84 | else
 85 |     JAVACMD="java"
 86 |     which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
 87 | 
 88 | Please set the JAVA_HOME variable in your environment to match the
 89 | location of your Java installation."
 90 | fi
 91 | 
 92 | # Increase the maximum file descriptors if we can.
 93 | if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
 94 |     MAX_FD_LIMIT=`ulimit -H -n`
 95 |     if [ $? -eq 0 ] ; then
 96 |         if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
 97 |             MAX_FD="$MAX_FD_LIMIT"
 98 |         fi
 99 |         ulimit -n $MAX_FD
100 |         if [ $? -ne 0 ] ; then
101 |             warn "Could not set maximum file descriptor limit: $MAX_FD"
102 |         fi
103 |     else
104 |         warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
105 |     fi
106 | fi
107 | 
108 | # For Darwin, add options to specify how the application appears in the dock
109 | if $darwin; then
110 |     GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
111 | fi
112 | 
113 | # For Cygwin, switch paths to Windows format before running java
114 | if $cygwin ; then
115 |     APP_HOME=`cygpath --path --mixed "$APP_HOME"`
116 |     CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
117 | 
118 |     # We build the pattern for arguments to be converted via cygpath
119 |     ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
120 |     SEP=""
121 |     for dir in $ROOTDIRSRAW ; do
122 |         ROOTDIRS="$ROOTDIRS$SEP$dir"
123 |         SEP="|"
124 |     done
125 |     OURCYGPATTERN="(^($ROOTDIRS))"
126 |     # Add a user-defined pattern to the cygpath arguments
127 |     if [ "$GRADLE_CYGPATTERN" != "" ] ; then
128 |         OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
129 |     fi
130 |     # Now convert the arguments - kludge to limit ourselves to /bin/sh
131 |     i=0
132 |     for arg in "$@" ; do
133 |         CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
134 |         CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
135 | 
136 |         if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
137 |             eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
138 |         else
139 |             eval `echo args$i`="\"$arg\""
140 |         fi
141 |         i=$((i+1))
142 |     done
143 |     case $i in
144 |         (0) set -- ;;
145 |         (1) set -- "$args0" ;;
146 |         (2) set -- "$args0" "$args1" ;;
147 |         (3) set -- "$args0" "$args1" "$args2" ;;
148 |         (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
149 |         (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
150 |         (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
151 |         (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
152 |         (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
153 |         (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
154 |     esac
155 | fi
156 | 
157 | # Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
158 | function splitJvmOpts() {
159 |     JVM_OPTS=("$@")
160 | }
161 | eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
162 | JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
163 | 
164 | exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
165 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/data/preferences/orm/PreferencesDao.java:
--------------------------------------------------------------------------------
  1 | package com.photoviewer.data.preferences.orm;
  2 | 
  3 | import android.content.Context;
  4 | import android.content.SharedPreferences;
  5 | import android.util.Log;
  6 | 
  7 | import com.google.gson.Gson;
  8 | 
  9 | import java.lang.annotation.Annotation;
 10 | import java.lang.reflect.Constructor;
 11 | import java.lang.reflect.Field;
 12 | import java.lang.reflect.InvocationTargetException;
 13 | import java.util.Arrays;
 14 | import java.util.HashMap;
 15 | import java.util.List;
 16 | import java.util.Map;
 17 | 
 18 | public class PreferencesDao<T> {
 19 | 
 20 |     public static final String EMPTY_STRING = "";
 21 |     private static final String TAG = PreferencesDao.class.getSimpleName();
 22 |     final Context mContext;
 23 |     private final SharedPreferences mSharedPreferences;
 24 |     private final Class<T> mType;
 25 | 
 26 |     private Map<String, Field> mFieldsPreferencesMap;
 27 | 
 28 |     public PreferencesDao(Class<T> type, Context context) {
 29 |         mContext = context;
 30 |         mType = type;
 31 |         mSharedPreferences = mContext.getSharedPreferences(getName(), Context.MODE_PRIVATE);
 32 |     }
 33 | 
 34 |     public void save(T model) {
 35 |         SharedPreferences.Editor e = mSharedPreferences.edit();
 36 |         convertModelToEditor(model, e);
 37 |         e.apply();
 38 |     }
 39 | 
 40 |     public T read() {
 41 |         T model = newModel();
 42 | 
 43 |         convertPreferencesToModel(model);
 44 | 
 45 |         return model;
 46 |     }
 47 | 
 48 |     public void delete() {
 49 |         mSharedPreferences.edit().clear();
 50 |     }
 51 | 
 52 |     private String getName() {
 53 |         Class<T> type = getType();
 54 |         for (Annotation annotation : type.getDeclaredAnnotations()) {
 55 |             if (annotation.annotationType().isAssignableFrom(PreferenceFile.class)) {
 56 |                 PreferenceFile preferenceFileAnnotation = (PreferenceFile)annotation;
 57 |                 return preferenceFileAnnotation.name();
 58 |             }
 59 |         }
 60 | 
 61 |         return type.getSimpleName();
 62 |     }
 63 | 
 64 |     private void convertModelToEditor(T model, SharedPreferences.Editor editor) {
 65 |         buildFieldsMap();
 66 | 
 67 |         for (Map.Entry<String, Field> entry : mFieldsPreferencesMap.entrySet()) {
 68 |             String preferenceName = entry.getKey();
 69 |             Field field = entry.getValue();
 70 |             putValueToEditor(editor, preferenceName, model, field);
 71 |         }
 72 |     }
 73 | 
 74 |     private void putValueToEditor(SharedPreferences.Editor editor, String preferenceName, T model, Field field) {
 75 |         field.setAccessible(true);
 76 | 
 77 |         try {
 78 |             if (field.getType().equals(boolean.class)) {
 79 |                 boolean booleanValue = field.getBoolean(model);
 80 |                 editor.putBoolean(preferenceName, booleanValue);
 81 |                 return;
 82 |             }
 83 |             if (field.getType().equals(int.class)) {
 84 |                 int integerValue = field.getInt(model);
 85 |                 editor.putInt(preferenceName, integerValue);
 86 |                 return;
 87 |             }
 88 |             if (field.getType().equals(float.class)) {
 89 |                 float floatValue = field.getFloat(model);
 90 |                 editor.putFloat(preferenceName, floatValue);
 91 |                 return;
 92 |             }
 93 |             if (field.getType().equals(long.class)) {
 94 |                 long longValue = field.getLong(model);
 95 |                 editor.putLong(preferenceName, longValue);
 96 |                 return;
 97 |             }
 98 |             if (field.getType().equals(String.class)) {
 99 |                 String stringValue = (String) field.get(model);
100 |                 editor.putString(preferenceName, stringValue);
101 |                 return;
102 |             }
103 | 
104 |             Gson gson = new Gson();
105 |             editor.putString(preferenceName, gson.toJson(field.get(model)));
106 |         } catch (IllegalAccessException e) {
107 |             Log.wtf(TAG, "Exception during converting of Field's value to Preference", e);
108 |         }
109 |     }
110 | 
111 |     private synchronized void buildFieldsMap() {
112 | 
113 |         if(mFieldsPreferencesMap != null) {
114 |             return;
115 |         } else {
116 |             mFieldsPreferencesMap = new HashMap<>();
117 |         }
118 | 
119 |         Class<T> type = getType();
120 |         List<Field> fields = Arrays.asList(type.getDeclaredFields());
121 | 
122 |         for (Field field : fields) {
123 |             handleField(field);
124 |         }
125 |     }
126 | 
127 |     private void handleField(Field field) {
128 |         Annotation[] annotations = field.getDeclaredAnnotations();
129 | 
130 |         for(Annotation annotation : annotations) {
131 |             if(annotation.annotationType().isAssignableFrom(Preference.class)) {
132 |                 Preference preferenceAnnotation = (Preference) annotation;
133 | 
134 |                 if (!preferenceAnnotation.enabled()) {
135 |                     return;
136 |                 }
137 | 
138 |                 if (!preferenceAnnotation.name().isEmpty()) {
139 |                     mFieldsPreferencesMap.put(preferenceAnnotation.name(), field);
140 |                     return;
141 |                 }
142 |             }
143 |         }
144 | 
145 |         mFieldsPreferencesMap.put(field.getName(), field);
146 |     }
147 | 
148 |     private void convertPreferencesToModel(T model) {
149 |         buildFieldsMap();
150 | 
151 |         for (Map.Entry<String, Field> entry : mFieldsPreferencesMap.entrySet()) {
152 |             String preferenceName = entry.getKey();
153 |             Field field = entry.getValue();
154 |             setValueToModel(preferenceName, model, field);
155 |         }
156 |     }
157 | 
158 |     private void setValueToModel(String preferenceName, T model, Field field) {
159 |         field.setAccessible(true);
160 | 
161 |         try {
162 |             if (field.getType().equals(boolean.class)) {
163 |                 boolean booleanValue = mSharedPreferences.getBoolean(preferenceName, false);
164 |                 field.setBoolean(model, booleanValue);
165 |                 return;
166 |             }
167 |             if (field.getType().equals(int.class)) {
168 |                 int integerValue = mSharedPreferences.getInt(preferenceName, 0);
169 |                 field.setInt(model, integerValue);
170 |                 return;
171 |             }
172 |             if (field.getType().equals(float.class)) {
173 |                 float floatValue = mSharedPreferences.getFloat(preferenceName, 0f);
174 |                 field.setFloat(model, floatValue);
175 |                 return;
176 |             }
177 |             if (field.getType().equals(long.class)) {
178 |                 long longValue = mSharedPreferences.getLong(preferenceName, 0L);
179 |                 field.setLong(model, longValue);
180 |                 return;
181 |             }
182 |             if (field.getType().equals(String.class)) {
183 |                 String stringValue = mSharedPreferences.getString(preferenceName, EMPTY_STRING);
184 |                 field.set(model, stringValue);
185 |                 return;
186 |             }
187 | 
188 |             Gson gson = new Gson();
189 |             String stringValue = mSharedPreferences.getString(preferenceName, EMPTY_STRING);
190 |             field.set(model, gson.fromJson(stringValue, field.getDeclaringClass()));
191 |         } catch (IllegalAccessException e) {
192 |             Log.wtf(TAG, "Exception during converting of Preference to Field's value", e);
193 |         }
194 |     }
195 | 
196 |     private T newModel() {
197 |         Class<T> type = getType();
198 |         Constructor<T> emptyConstructor = (Constructor <T>) type.getConstructors()[0];
199 |         try {
200 |             T model = emptyConstructor.newInstance(null);
201 |             return model;
202 |         } catch (InstantiationException e) {
203 |             Log.wtf(TAG, e);
204 |         } catch (InvocationTargetException e) {
205 |             Log.wtf(TAG, e);
206 |         } catch (IllegalAccessException e) {
207 |             Log.wtf(TAG, e);
208 |         }
209 |         return null;
210 |     }
211 | 
212 |     private Class<T> getType(){
213 |         return mType;
214 |     }
215 | }
216 | 
217 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/presentation/presenter/PhotoListPresenter.java:
--------------------------------------------------------------------------------
  1 | package com.photoviewer.presentation.presenter;
  2 | 
  3 | import android.support.annotation.NonNull;
  4 | 
  5 | import com.photoviewer.domain.Photo;
  6 | import com.photoviewer.domain.PhotoStatistics;
  7 | import com.photoviewer.domain.usecases.GetPhotoStatistics;
  8 | import com.photoviewer.domain.usecases.GetPhotosList;
  9 | import com.photoviewer.domain.usecases.SavePhotoStatistics;
 10 | import com.photoviewer.domain.usecases.SearchByTitle;
 11 | import com.photoviewer.domain.usecases.SimpleSubscriber;
 12 | import com.photoviewer.presentation.mapper.photo.PhotoToPhotoModel;
 13 | import com.photoviewer.presentation.mapper.photostatistics.PhotoStatisticsModelToPhotoStatistics;
 14 | import com.photoviewer.presentation.mapper.photostatistics.PhotoStatisticsToPhotoStatisticsModel;
 15 | import com.photoviewer.presentation.model.PhotoModel;
 16 | import com.photoviewer.presentation.model.PhotoStatisticsModel;
 17 | import com.photoviewer.presentation.view.PhotoListView;
 18 | 
 19 | import java.util.ArrayList;
 20 | import java.util.Collections;
 21 | import java.util.Comparator;
 22 | import java.util.List;
 23 | import javax.inject.Inject;
 24 | 
 25 | /**
 26 |  * {@link Presenter} that controls communication between views and models of the presentation
 27 |  * layer.
 28 |  */
 29 | public class PhotoListPresenter extends SimplePresenter {
 30 | 
 31 |     private PhotoStatisticsModel mPhotoStatisticsModel;
 32 | 
 33 |     private PhotoListView mViewList;
 34 | 
 35 |     //Use cases
 36 |     private final GetPhotosList mGetPhotoListUseCase;
 37 |     private final SearchByTitle mSearchByTitleUseCase;
 38 |     private final GetPhotoStatistics mGetPhotoStatisticsUseCase;
 39 |     private final SavePhotoStatistics mSavePhotoStatisticsUseCase;
 40 | 
 41 |     //Transformers
 42 |     private PhotoToPhotoModel mPhotoModelTransformer;
 43 |     private PhotoStatisticsToPhotoStatisticsModel mPhotoStatisticsToPhotoStatisticsModelTransformer;
 44 |     private PhotoStatisticsModelToPhotoStatistics mPhotoStatisticsModelToPhotoStatisticsTransformer;
 45 | 
 46 |     private AlphabetPhotoModelTitleComparator mModelTitleComparator = new AlphabetPhotoModelTitleComparator(true);
 47 |     private String mSearchedTitle;
 48 | 
 49 |     @Inject
 50 |     public PhotoListPresenter(GetPhotosList getPhotoListUseCase,
 51 |                               SearchByTitle searchByTitleUseCase,
 52 |                               GetPhotoStatistics getPhotoStatistics,
 53 |                               SavePhotoStatistics savePhotoStatistics) {
 54 | 
 55 |         mGetPhotoListUseCase = getPhotoListUseCase;
 56 |         mSearchByTitleUseCase = searchByTitleUseCase;
 57 |         mGetPhotoStatisticsUseCase = getPhotoStatistics;
 58 |         mSavePhotoStatisticsUseCase = savePhotoStatistics;
 59 | 
 60 |         createTransformers();
 61 |     }
 62 | 
 63 |     private void createTransformers() {
 64 |         mPhotoModelTransformer = new PhotoToPhotoModel();
 65 |         mPhotoStatisticsModelToPhotoStatisticsTransformer = new PhotoStatisticsModelToPhotoStatistics();
 66 |         mPhotoStatisticsToPhotoStatisticsModelTransformer = new PhotoStatisticsToPhotoStatisticsModel();
 67 |     }
 68 | 
 69 |     public void setView(@NonNull PhotoListView view) {
 70 |         mViewList = view;
 71 |     }
 72 | 
 73 |     @Override public void destroy() {
 74 |         mGetPhotoListUseCase.unsubscribe();
 75 |     }
 76 | 
 77 |     /**
 78 |      * Initializes the presenter by start retrieving the photo list.
 79 |      */
 80 |     public void initialize() {
 81 |         loadPhotoList();
 82 |         loadPhotoStatistics();
 83 |     }
 84 | 
 85 |     private void loadPhotoStatistics() {
 86 |         mGetPhotoStatisticsUseCase.execute(new PhotoStatisticsSubscriber());
 87 |     }
 88 | 
 89 |     public void sort(boolean ascending) {
 90 |         mModelTitleComparator = new AlphabetPhotoModelTitleComparator(ascending);
 91 | 
 92 |         if(mSearchedTitle == null || mSearchedTitle.isEmpty()) {
 93 |             loadPhotoList();
 94 |             mViewList.highlightTextInList(null);
 95 |         } else {
 96 |             searchByTitle(mSearchedTitle);
 97 |         }
 98 |     }
 99 | 
100 |     public void searchByTitle(String title) {
101 |         mSearchedTitle = title;
102 | 
103 |         if (title == null || title.isEmpty()) {
104 |             loadPhotoList();
105 |         } else {
106 |             showViewLoading();
107 |             mSearchByTitleUseCase.setSearchedTitle(title);
108 |             mSearchByTitleUseCase.execute(new PhotoListSubscriber());
109 |         }
110 | 
111 |         mViewList.highlightTextInList(title);
112 |     }
113 | 
114 |     public void onPhotoClicked(PhotoModel photoModel) {
115 |         mViewList.viewPhoto(photoModel);
116 |         updatePhotoStatisticsModel(photoModel);
117 |     }
118 | 
119 |     private void updatePhotoStatisticsModel(PhotoModel photoModel) {
120 |         mPhotoStatisticsModel.incOpenedPhotosCount();
121 |         mPhotoStatisticsModel.setLastOpenedPhotoModel(photoModel);
122 | 
123 |         PhotoStatistics photoStatistics = mPhotoStatisticsModelToPhotoStatisticsTransformer.transform(mPhotoStatisticsModel);
124 |         mSavePhotoStatisticsUseCase.setPhotoStatistics(photoStatistics);
125 |         mSavePhotoStatisticsUseCase.execute(new SimpleSubscriber<>());
126 | 
127 |         mViewList.renderPhotoStatisticsModel(mPhotoStatisticsModel);
128 |     }
129 | 
130 |     /**
131 |      * Loads all photos.
132 |      */
133 |     public void loadPhotoList() {
134 |         hideViewRetry();
135 |         showViewLoading();
136 |         getPhotoList();
137 |     }
138 | 
139 |     private void showViewLoading() {
140 |         mViewList.showLoading();
141 |     }
142 | 
143 |     private void hideViewLoading() {
144 |         mViewList.hideLoading();
145 |     }
146 | 
147 |     private void showViewRetry() {
148 |         mViewList.showRetry();
149 |     }
150 | 
151 |     private void hideViewRetry() {
152 |         mViewList.hideRetry();
153 |     }
154 | 
155 |     private void showErrorMessage() {
156 |         //TODO implement
157 |         String errorMessage = "Error happened";
158 |         mViewList.showError(errorMessage);
159 |     }
160 | 
161 |     private void showPhotoStatisticsInView(PhotoStatistics photoStatistics) {
162 |         mPhotoStatisticsModel = mPhotoStatisticsToPhotoStatisticsModelTransformer.transform(photoStatistics);
163 |         mViewList.renderPhotoStatisticsModel(mPhotoStatisticsModel);
164 |     }
165 | 
166 |     private void showPhotoListInView(List<Photo> photoList) {
167 |         final List<PhotoModel> photoModelsList =
168 |                 new ArrayList<>(mPhotoModelTransformer.transform(photoList));
169 | 
170 |         Collections.sort(photoModelsList, mModelTitleComparator);
171 | 
172 |         mViewList.renderPhotoList(photoModelsList);
173 |     }
174 | 
175 |     private void getPhotoList() {
176 |         mGetPhotoListUseCase.execute(new PhotoListSubscriber());
177 |     }
178 | 
179 |     private final class PhotoListSubscriber extends SimpleSubscriber<List<Photo>> {
180 | 
181 |         @Override
182 |         public void onCompleted() {
183 |             PhotoListPresenter.this.hideViewLoading();
184 |         }
185 | 
186 |         @Override
187 |         public void onError(Throwable e) {
188 |             PhotoListPresenter.this.hideViewLoading();
189 |             PhotoListPresenter.this.showErrorMessage();
190 |             PhotoListPresenter.this.showViewRetry();
191 |         }
192 | 
193 |         @Override
194 |         public void onNext(List<Photo> photos) {
195 |             PhotoListPresenter.this.showPhotoListInView(photos);
196 |         }
197 |     }
198 | 
199 |     private final class PhotoStatisticsSubscriber extends SimpleSubscriber<PhotoStatistics> {
200 | 
201 |         @Override
202 |         public void onCompleted() {
203 |             PhotoListPresenter.this.hideViewLoading();
204 |         }
205 | 
206 |         @Override
207 |         public void onError(Throwable e) {
208 |             PhotoListPresenter.this.showPhotoStatisticsInView(new PhotoStatistics());
209 |         }
210 | 
211 |         @Override
212 |         public void onNext(PhotoStatistics photoStatistics) {
213 |             PhotoListPresenter.this.showPhotoStatisticsInView(photoStatistics);
214 |         }
215 |     }
216 | 
217 |     private class AlphabetPhotoModelTitleComparator implements Comparator<PhotoModel> {
218 |         private boolean mIsAscending;
219 | 
220 |         AlphabetPhotoModelTitleComparator(boolean isAscending) {
221 |             mIsAscending = isAscending;
222 |         }
223 | 
224 |         @Override
225 |         public int compare(@NonNull PhotoModel lhs, @NonNull PhotoModel rhs) {
226 |             return lhs.getTitle().compareToIgnoreCase(rhs.getTitle())
227 |                     * (mIsAscending ? 1 : -1);
228 |         }
229 |     }
230 | }
231 | 
232 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/photoviewer/presentation/view/activity/PhotosListActivity.java:
--------------------------------------------------------------------------------
  1 | package com.photoviewer.presentation.view.activity;
  2 | 
  3 | import android.app.SearchManager;
  4 | import android.content.Context;
  5 | import android.os.Bundle;
  6 | import android.support.v7.widget.LinearLayoutManager;
  7 | import android.support.v7.widget.RecyclerView;
  8 | import android.support.v7.widget.SearchView;
  9 | import android.support.v7.widget.Toolbar;
 10 | import android.view.Menu;
 11 | import android.view.MenuInflater;
 12 | import android.view.MenuItem;
 13 | import android.view.View;
 14 | import android.widget.Button;
 15 | import android.widget.CheckBox;
 16 | import android.widget.ImageView;
 17 | import android.widget.RelativeLayout;
 18 | import android.widget.TextView;
 19 | import android.widget.Toast;
 20 | import butterknife.BindView;
 21 | import com.jakewharton.picasso.OkHttp3Downloader;
 22 | import com.photoviewer.R;
 23 | import com.photoviewer.presentation.model.PhotoModel;
 24 | import com.photoviewer.presentation.model.PhotoStatisticsModel;
 25 | import com.photoviewer.presentation.navigation.Navigator;
 26 | import com.photoviewer.presentation.presenter.PhotoListPresenter;
 27 | import com.photoviewer.presentation.view.PhotoListView;
 28 | import com.photoviewer.presentation.view.adapter.PhotoAdapter;
 29 | import com.photoviewer.presentation.view.utils.ImageRoundedCornersTransformation;
 30 | import com.squareup.picasso.Picasso;
 31 | import com.squareup.picasso.Transformation;
 32 | import java.util.ArrayList;
 33 | import java.util.Collection;
 34 | import javax.inject.Inject;
 35 | import okhttp3.OkHttpClient;
 36 | 
 37 | public class PhotosListActivity extends DiAppCompatActivity implements PhotoListView {
 38 | 
 39 |     @Inject PhotoListPresenter mPhotoListPresenter;
 40 |     @Inject Navigator mNavigator;
 41 |     @Inject Picasso mPicasso;
 42 | 
 43 |     //Toolbar Views
 44 |     @BindView(R.id.toolbar) Toolbar mToolbar;
 45 |     @BindView(R.id.last_opened_photo_image_view) ImageView mLastOpenedImageView;
 46 |     @BindView(R.id.opened_photo_count_text_view) TextView mOpenedPhotosCountView;
 47 | 
 48 |     //Content Views
 49 |     @BindView(R.id.photos_list) RecyclerView mPhotoListView;
 50 | 
 51 |     //Data Loading Views
 52 |     @BindView(R.id.progress_layout) RelativeLayout mProgressView;
 53 |     @BindView(R.id.retry_layout) RelativeLayout mRetryView;
 54 |     @BindView(R.id.retry_button) Button mRetryButton;
 55 | 
 56 |     private CheckBox mSortMenuCheckBox;
 57 | 
 58 |     private PhotoAdapter mPhotosListAdapter;
 59 |     private Transformation mImageTransformation;
 60 | 
 61 |     @Override
 62 |     public void onCreate(Bundle savedInstanceState) {
 63 |         super.onCreate(savedInstanceState);
 64 |         setContentView(R.layout.activity_photo_list);
 65 | 
 66 |         initialize();
 67 |         loadPhotoList();
 68 |         setUpUI();
 69 |     }
 70 | 
 71 |     @Override
 72 |     public boolean onCreateOptionsMenu(Menu menu) {
 73 |         MenuInflater inflater = getMenuInflater();
 74 |         inflater.inflate(R.menu.photos_list, menu);
 75 |         setUpSearchMenu(menu);
 76 |         setUpSortMenu(menu);
 77 |         return true;
 78 |     }
 79 | 
 80 |     private void setUpSortMenu(Menu menu) {
 81 |         mSortMenuCheckBox = (CheckBox) menu.
 82 |                 findItem(R.id.menu_sort).
 83 |                 getActionView().
 84 |                 findViewById(R.id.sort_toggle_button);
 85 | 
 86 |         mSortMenuCheckBox.setOnCheckedChangeListener((buttonView, isChecked) -> {
 87 |             mPhotoListPresenter.sort(!isChecked);
 88 |         });
 89 |     }
 90 | 
 91 |     private void setUpSearchMenu(Menu menu) {
 92 |         // Associate searchable configuration with the SearchView
 93 |         SearchManager searchManager =
 94 |                 (SearchManager) getSystemService(Context.SEARCH_SERVICE);
 95 |         SearchView searchView =
 96 |                 (SearchView) menu.findItem(R.id.menu_search).getActionView();
 97 |         searchView.setSearchableInfo(
 98 |                 searchManager.getSearchableInfo(getComponentName()));
 99 | 
100 |         searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
101 |             @Override
102 |             public boolean onQueryTextSubmit(String query) {
103 |                 return false;
104 |             }
105 | 
106 |             @Override
107 |             public boolean onQueryTextChange(String newText) {
108 |                 mPhotoListPresenter.searchByTitle(newText);
109 |                 return true;
110 |             }
111 |         });
112 |         searchView.setOnCloseListener(() -> {
113 |             mPhotoListPresenter.searchByTitle(null);
114 |             return false;
115 |         });
116 |     }
117 | 
118 |     @Override
119 |     public boolean onOptionsItemSelected(MenuItem item) {
120 |         int id = item.getItemId();
121 | 
122 |         if (id == R.id.menu_sort) {
123 |             onSortMenuSelected();
124 |             return true;
125 |         }
126 | 
127 |         return super.onOptionsItemSelected(item);
128 |     }
129 | 
130 |     private void onSortMenuSelected() {
131 |         mSortMenuCheckBox.toggle();
132 |     }
133 | 
134 |     @Override
135 |     public void onResume() {
136 |         super.onResume();
137 |         mPhotoListPresenter.resume();
138 |     }
139 | 
140 |     @Override
141 |     public void onPause() {
142 |         super.onPause();
143 |         mPhotoListPresenter.pause();
144 |     }
145 | 
146 |     @Override
147 |     public void onDestroy() {
148 |         super.onDestroy();
149 |         mPhotoListPresenter.destroy();
150 |     }
151 | 
152 |     private void initialize() {
153 |         mPhotoListPresenter.setView(this);
154 |     }
155 | 
156 |     private void setUpUI() {
157 |         setSupportActionBar(mToolbar);
158 |         getSupportActionBar().setTitle("");
159 | 
160 |         mPhotoListView.setLayoutManager(new LinearLayoutManager(this));
161 | 
162 |         mPhotosListAdapter = new PhotoAdapter(this, new ArrayList<>(), mPicasso);
163 |         mPhotosListAdapter.setOnItemClickListener(onItemClickListener);
164 |         mPhotoListView.setAdapter(mPhotosListAdapter);
165 | 
166 |         mRetryButton.setOnClickListener(v -> onButtonRetryClick());
167 | 
168 |         setupTransformation();
169 |     }
170 | 
171 |     private void setupTransformation() {
172 |         int radius = (int) getResources().getDimension(R.dimen.list_view_row_icon_rounding_radius);
173 |         mImageTransformation = new ImageRoundedCornersTransformation(radius, 0);
174 |     }
175 | 
176 |     @Override
177 |     public void showLoading() {
178 |         mProgressView.setVisibility(View.VISIBLE);
179 |         setProgressBarIndeterminateVisibility(true);
180 |     }
181 | 
182 |     @Override
183 |     public void hideLoading() {
184 |         mProgressView.setVisibility(View.GONE);
185 |         setProgressBarIndeterminateVisibility(false);
186 |     }
187 | 
188 |     @Override
189 |     public void showRetry() {
190 |         mRetryView.setVisibility(View.VISIBLE);
191 |     }
192 | 
193 |     @Override
194 |     public void hideRetry() {
195 |         mRetryView.setVisibility(View.GONE);
196 |     }
197 | 
198 |     @Override
199 |     public void showError(String message) {
200 |         showToastMessage(message);
201 |     }
202 | 
203 |     protected void showToastMessage(String message) {
204 |         Toast.makeText(this, message, Toast.LENGTH_SHORT).show();
205 |     }
206 | 
207 |     /**
208 |      * Loads all photos.
209 |      */
210 |     private void loadPhotoList() {
211 |         mPhotoListPresenter.initialize();
212 |     }
213 | 
214 |     void onButtonRetryClick() {
215 |         loadPhotoList();
216 |     }
217 | 
218 |     private PhotoAdapter.OnItemClickListener onItemClickListener =
219 |             new PhotoAdapter.OnItemClickListener() {
220 |                 @Override
221 |                 public void onItemClicked(PhotoModel photoModel) {
222 |                     if (PhotosListActivity.this.mPhotoListPresenter != null && photoModel != null) {
223 |                         PhotosListActivity.this.mPhotoListPresenter.onPhotoClicked(photoModel);
224 |                     }
225 |                 }
226 |             };
227 | 
228 |     @Override
229 |     public void renderPhotoList(Collection<PhotoModel> photoModelCollection) {
230 |         if (photoModelCollection != null) {
231 |             this.mPhotosListAdapter.setPhotosCollection(photoModelCollection);
232 |         }
233 |     }
234 | 
235 |     @Override
236 |     public void viewPhoto(PhotoModel photoModel) {
237 |         mNavigator.navigateToPhotoDetails(this, photoModel.getId());
238 |     }
239 | 
240 |     @Override
241 |     public void renderPhotoStatisticsModel(PhotoStatisticsModel photoStatisticsModel) {
242 |         mOpenedPhotosCountView.setText(Integer.toString(photoStatisticsModel.getOpenedPhotosCount()));
243 | 
244 |         PhotoModel lastOpenedPhotoModel = photoStatisticsModel.getLastOpenedPhotoModel();
245 |         if (lastOpenedPhotoModel != null) {
246 |             mPicasso.load(lastOpenedPhotoModel.getThumbnailUrl())
247 |                     .transform(mImageTransformation)
248 |                     .placeholder(R.drawable.ic_crop_original_black)
249 |                     .error(R.drawable.ic_error_outline_black)
250 |                     .into(mLastOpenedImageView);
251 |         }
252 |     }
253 | 
254 |     @Override
255 |     public void highlightTextInList(String textToHighlight) {
256 |         mPhotosListAdapter.highlightText(textToHighlight);
257 |     }
258 | }
259 | 


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