├── app
    ├── .gitignore
    ├── src
    │   └── main
    │   │   ├── res
    │   │       ├── mipmap-hdpi
    │   │       │   ├── ic_launcher.png
    │   │       │   └── ic_launcher_round.png
    │   │       ├── mipmap-mdpi
    │   │       │   ├── ic_launcher.png
    │   │       │   └── ic_launcher_round.png
    │   │       ├── mipmap-xhdpi
    │   │       │   ├── ic_launcher.png
    │   │       │   └── ic_launcher_round.png
    │   │       ├── mipmap-xxhdpi
    │   │       │   ├── ic_launcher.png
    │   │       │   └── ic_launcher_round.png
    │   │       ├── mipmap-xxxhdpi
    │   │       │   ├── ic_launcher.png
    │   │       │   └── ic_launcher_round.png
    │   │       ├── drawable
    │   │       │   ├── circle.xml
    │   │       │   └── ic_launcher_background.xml
    │   │       ├── mipmap-anydpi-v26
    │   │       │   ├── ic_launcher.xml
    │   │       │   └── ic_launcher_round.xml
    │   │       ├── values
    │   │       │   ├── strings.xml
    │   │       │   ├── colors.xml
    │   │       │   └── themes.xml
    │   │       ├── layout
    │   │       │   ├── activity_main.xml
    │   │       │   ├── item_color.xml
    │   │       │   ├── final_fragment_splash.xml
    │   │       │   ├── fragment_splash.xml
    │   │       │   └── wso3_fragment.xml
    │   │       ├── values-night
    │   │       │   └── themes.xml
    │   │       ├── xml
    │   │       │   ├── ws04_animation_todo_01.xml
    │   │       │   ├── ws04_animation_todo_02.xml
    │   │       │   ├── ws04_animation_todo_03.xml
    │   │       │   ├── ws04_solution_animation.xml
    │   │       │   └── ws04_animation_todo_04.xml
    │   │       └── drawable-v24
    │   │       │   └── ic_launcher_foreground.xml
    │   │   ├── java
    │   │       └── com
    │   │       │   └── android
    │   │       │       └── academy
    │   │       │           └── fundamentals
    │   │       │               ├── workshop03
    │   │       │                   ├── ObjectAnimatorHelper.kt
    │   │       │                   ├── ColorsAdapter.kt
    │   │       │                   ├── WS03Fragment.kt
    │   │       │                   ├── solution
    │   │       │                   │   ├── WS03SolutionFragment.kt
    │   │       │                   │   └── SolutionColorItemAnimator.kt
    │   │       │                   ├── ColorItemAnimator.kt
    │   │       │                   └── ColorsHelper.kt
    │   │       │               ├── MainActivity.kt
    │   │       │               └── ws4
    │   │       │                   ├── solution
    │   │       │                       └── WS04SolutionFragment.kt
    │   │       │                   └── WS04Fragment.kt
    │   │   └── AndroidManifest.xml
    ├── proguard-rules.pro
    └── build.gradle
├── settings.gradle
├── gradle
    └── wrapper
    │   ├── gradle-wrapper.jar
    │   └── gradle-wrapper.properties
├── README.md
├── gradle.properties
├── .gitignore
├── gradlew.bat
└── gradlew


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


--------------------------------------------------------------------------------
/settings.gradle:
--------------------------------------------------------------------------------
1 | include ':app'
2 | rootProject.name = "FundamentalsAssignments"
3 | 


--------------------------------------------------------------------------------
/gradle/wrapper/gradle-wrapper.jar:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/Android-Academy-Global/fundamentals-2020-assignments/HEAD/gradle/wrapper/gradle-wrapper.jar


--------------------------------------------------------------------------------
/app/src/main/res/mipmap-hdpi/ic_launcher.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/Android-Academy-Global/fundamentals-2020-assignments/HEAD/app/src/main/res/mipmap-hdpi/ic_launcher.png


--------------------------------------------------------------------------------
/app/src/main/res/mipmap-mdpi/ic_launcher.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/Android-Academy-Global/fundamentals-2020-assignments/HEAD/app/src/main/res/mipmap-mdpi/ic_launcher.png


--------------------------------------------------------------------------------
/app/src/main/res/mipmap-xhdpi/ic_launcher.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/Android-Academy-Global/fundamentals-2020-assignments/HEAD/app/src/main/res/mipmap-xhdpi/ic_launcher.png


--------------------------------------------------------------------------------
/app/src/main/res/mipmap-xxhdpi/ic_launcher.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/Android-Academy-Global/fundamentals-2020-assignments/HEAD/app/src/main/res/mipmap-xxhdpi/ic_launcher.png


--------------------------------------------------------------------------------
/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/Android-Academy-Global/fundamentals-2020-assignments/HEAD/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png


--------------------------------------------------------------------------------
/app/src/main/res/mipmap-hdpi/ic_launcher_round.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/Android-Academy-Global/fundamentals-2020-assignments/HEAD/app/src/main/res/mipmap-hdpi/ic_launcher_round.png


--------------------------------------------------------------------------------
/app/src/main/res/mipmap-mdpi/ic_launcher_round.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/Android-Academy-Global/fundamentals-2020-assignments/HEAD/app/src/main/res/mipmap-mdpi/ic_launcher_round.png


--------------------------------------------------------------------------------
/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/Android-Academy-Global/fundamentals-2020-assignments/HEAD/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png


--------------------------------------------------------------------------------
/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/Android-Academy-Global/fundamentals-2020-assignments/HEAD/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png


--------------------------------------------------------------------------------
/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/Android-Academy-Global/fundamentals-2020-assignments/HEAD/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
1 | # fundamentals-2020-assignments
2 | This repository will contain assignments for workshops of Fundamentals 2020 Course
3 | 
4 | Read [wiki](https://github.com/Android-Academy-Global/fundamentals-2020-assignments/wiki)!
5 | 


--------------------------------------------------------------------------------
/app/src/main/res/drawable/circle.xml:
--------------------------------------------------------------------------------
1 | <?xml version="1.0" encoding="utf-8"?>
2 | <shape xmlns:android="http://schemas.android.com/apk/res/android"
3 |     android:shape="oval">
4 | 
5 |     <solid android:color="#fff" />
6 | 
7 | </shape>


--------------------------------------------------------------------------------
/gradle/wrapper/gradle-wrapper.properties:
--------------------------------------------------------------------------------
1 | #Thu Oct 29 16:43:45 MSK 2020
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-6.5-bin.zip
7 | 


--------------------------------------------------------------------------------
/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml:
--------------------------------------------------------------------------------
1 | <?xml version="1.0" encoding="utf-8"?>
2 | <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
3 |     <background android:drawable="@drawable/ic_launcher_background" />
4 |     <foreground android:drawable="@drawable/ic_launcher_foreground" />
5 | </adaptive-icon>
6 | 


--------------------------------------------------------------------------------
/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml:
--------------------------------------------------------------------------------
1 | <?xml version="1.0" encoding="utf-8"?>
2 | <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
3 |     <background android:drawable="@drawable/ic_launcher_background" />
4 |     <foreground android:drawable="@drawable/ic_launcher_foreground" />
5 | </adaptive-icon>
6 | 


--------------------------------------------------------------------------------
/app/src/main/res/values/strings.xml:
--------------------------------------------------------------------------------
 1 | <resources>
 2 |     <string name="app_name">FundamentalsAssignments</string>
 3 | 
 4 |     <string name="predictive_animations">Predictive Animations</string>
 5 |     <string name="custom_animator">Custom Animator</string>
 6 |     <string name="change_color">Change</string>
 7 |     <string name="add_color">Add</string>
 8 |     <string name="delete_color">Delete</string>
 9 | 
10 | </resources>
11 | 


--------------------------------------------------------------------------------
/app/src/main/res/values/colors.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <resources>
 3 |     <color name="purple_200">#FFBB86FC</color>
 4 |     <color name="purple_500">#FF6200EE</color>
 5 |     <color name="purple_700">#FF3700B3</color>
 6 |     <color name="teal_200">#FF03DAC5</color>
 7 |     <color name="teal_700">#FF018786</color>
 8 |     <color name="black">#FF000000</color>
 9 |     <color name="white">#FFFFFFFF</color>
10 | </resources>
11 | 


--------------------------------------------------------------------------------
/app/src/main/res/layout/activity_main.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <FrameLayout
 3 |     android:id="@+id/fragment_container_view"
 4 |     xmlns:android="http://schemas.android.com/apk/res/android"
 5 |     xmlns:app="http://schemas.android.com/apk/res-auto"
 6 |     xmlns:tools="http://schemas.android.com/tools"
 7 |     android:layout_width="match_parent"
 8 |     android:layout_height="match_parent"
 9 |     tools:context=".MainActivity">
10 | 
11 | </FrameLayout>
12 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/android/academy/fundamentals/workshop03/ObjectAnimatorHelper.kt:
--------------------------------------------------------------------------------
 1 | package com.android.academy.fundamentals.workshop03
 2 | 
 3 | import android.animation.ArgbEvaluator
 4 | import android.animation.ObjectAnimator
 5 | 
 6 | object ObjectAnimatorHelper {
 7 |     fun ofArgb(target: Any, propertyName: String, vararg values: Int): ObjectAnimator {
 8 |         val animator = ObjectAnimator.ofInt(target, propertyName, *values)
 9 |         animator.setEvaluator(ArgbEvaluator())
10 |         return animator
11 |     }
12 | }


--------------------------------------------------------------------------------
/app/src/main/java/com/android/academy/fundamentals/MainActivity.kt:
--------------------------------------------------------------------------------
 1 | package com.android.academy.fundamentals
 2 | 
 3 | import android.os.Bundle
 4 | import androidx.appcompat.app.AppCompatActivity
 5 | import androidx.fragment.app.Fragment
 6 | 
 7 | class MainActivity : AppCompatActivity() {
 8 |     override fun onCreate(savedInstanceState: Bundle?) {
 9 |         super.onCreate(savedInstanceState)
10 |         setContentView(R.layout.activity_main)
11 | 
12 |         if (savedInstanceState == null) {
13 |             supportFragmentManager.beginTransaction()
14 |                 .replace(R.id.fragment_container_view, Fragment())
15 |                 .commit()
16 |         }
17 |     }
18 | }


--------------------------------------------------------------------------------
/app/proguard-rules.pro:
--------------------------------------------------------------------------------
 1 | # Add project specific ProGuard rules here.
 2 | # You can control the set of applied configuration files using the
 3 | # proguardFiles setting in build.gradle.
 4 | #
 5 | # For more details, see
 6 | #   http://developer.android.com/guide/developing/tools/proguard.html
 7 | 
 8 | # If your project uses WebView with JS, uncomment the following
 9 | # and specify the fully qualified class name to the JavaScript interface
10 | # class:
11 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview {
12 | #   public *;
13 | #}
14 | 
15 | # Uncomment this to preserve the line number information for
16 | # debugging stack traces.
17 | #-keepattributes SourceFile,LineNumberTable
18 | 
19 | # If you keep the line number information, uncomment this to
20 | # hide the original source file name.
21 | #-renamesourcefileattribute SourceFile
22 | 


--------------------------------------------------------------------------------
/app/src/main/res/values/themes.xml:
--------------------------------------------------------------------------------
 1 | <resources xmlns:tools="http://schemas.android.com/tools">
 2 |     <!-- Base application theme. -->
 3 |     <style name="Theme.FundamentalsAssignments" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
 4 |         <!-- Primary brand color. -->
 5 |         <item name="colorPrimary">@color/purple_500</item>
 6 |         <item name="colorPrimaryVariant">@color/purple_700</item>
 7 |         <item name="colorOnPrimary">@color/white</item>
 8 |         <!-- Secondary brand color. -->
 9 |         <item name="colorSecondary">@color/teal_200</item>
10 |         <item name="colorSecondaryVariant">@color/teal_700</item>
11 |         <item name="colorOnSecondary">@color/black</item>
12 |         <!-- Status bar color. -->
13 |         <item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
14 |         <!-- Customize your theme here. -->
15 |     </style>
16 | </resources>
17 | 


--------------------------------------------------------------------------------
/app/src/main/res/values-night/themes.xml:
--------------------------------------------------------------------------------
 1 | <resources xmlns:tools="http://schemas.android.com/tools">
 2 |     <!-- Base application theme. -->
 3 |     <style name="Theme.FundamentalsAssignments" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
 4 |         <!-- Primary brand color. -->
 5 |         <item name="colorPrimary">@color/purple_200</item>
 6 |         <item name="colorPrimaryVariant">@color/purple_700</item>
 7 |         <item name="colorOnPrimary">@color/black</item>
 8 |         <!-- Secondary brand color. -->
 9 |         <item name="colorSecondary">@color/teal_200</item>
10 |         <item name="colorSecondaryVariant">@color/teal_200</item>
11 |         <item name="colorOnSecondary">@color/black</item>
12 |         <!-- Status bar color. -->
13 |         <item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
14 |         <!-- Customize your theme here. -->
15 |     </style>
16 | </resources>
17 | 


--------------------------------------------------------------------------------
/app/src/main/res/layout/item_color.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <LinearLayout
 3 |     xmlns:android="http://schemas.android.com/apk/res/android"
 4 |     xmlns:app="http://schemas.android.com/apk/res-auto"
 5 |     xmlns:tools="http://schemas.android.com/tools"
 6 |     android:layout_width="match_parent"
 7 |     android:layout_height="wrap_content">
 8 | 
 9 |     <TextView
10 |         android:id="@+id/color"
11 |         android:layout_width="match_parent"
12 |         android:layout_height="wrap_content"
13 |         android:gravity="center"
14 |         android:textColor="@color/black"
15 |         android:textSize="24sp"
16 |         android:textStyle="bold"
17 |         app:layout_constraintBottom_toBottomOf="parent"
18 |         app:layout_constraintEnd_toEndOf="parent"
19 |         app:layout_constraintStart_toStartOf="parent"
20 |         app:layout_constraintTop_toTopOf="parent"
21 |         tools:text="#42A5F5" />
22 | 
23 | </LinearLayout>


--------------------------------------------------------------------------------
/app/src/main/AndroidManifest.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <manifest
 3 |     xmlns:android="http://schemas.android.com/apk/res/android"
 4 |     package="com.android.academy.fundamentals">
 5 | 
 6 |     <application
 7 |         android:allowBackup="true"
 8 |         android:label="@string/app_name"
 9 |         android:supportsRtl="true"
10 |         android:theme="@style/Theme.FundamentalsAssignments">
11 | 
12 |         <activity android:name=".MainActivity">
13 | 
14 |             <intent-filter>
15 |                 <action android:name="android.intent.action.MAIN" />
16 |                 <category android:name="android.intent.category.LAUNCHER" />
17 |             </intent-filter>
18 | 
19 |         </activity>
20 | 
21 |         <!-- TODO Solution: Add a "SecondActivity" class into the manifest. Like this: -->
22 | <!--        <activity android:name=".MainActivity_Solution" />-->
23 | <!--        <activity android:name=".SecondActivity_Solution" />-->
24 | 
25 |     </application>
26 | 
27 | </manifest>


--------------------------------------------------------------------------------
/app/src/main/java/com/android/academy/fundamentals/ws4/solution/WS04SolutionFragment.kt:
--------------------------------------------------------------------------------
 1 | package com.android.academy.fundamentals.ws4.solution
 2 | 
 3 | import android.os.Bundle
 4 | import android.view.View
 5 | import android.widget.Button
 6 | import androidx.constraintlayout.motion.widget.MotionLayout
 7 | import androidx.fragment.app.Fragment
 8 | import com.android.academy.fundamentals.R
 9 | 
10 | class WS04SolutionFragment : Fragment(R.layout.final_fragment_splash) {
11 | 
12 |     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
13 |         super.onViewCreated(view, savedInstanceState)
14 | 
15 |         var isTransitionToEnd = false
16 |         val motionLayout = view.findViewById<MotionLayout>(R.id.motion_layout)
17 |         val btnAnimate = view.findViewById<Button>(R.id.btn_animate)
18 |         btnAnimate.setOnClickListener {
19 |             if (!isTransitionToEnd) {
20 |                 isTransitionToEnd = true
21 |                 motionLayout.transitionToEnd()
22 |             } else {
23 |                 isTransitionToEnd = false
24 |                 motionLayout.transitionToStart()
25 |             }
26 |         }
27 |     }
28 | }


--------------------------------------------------------------------------------
/gradle.properties:
--------------------------------------------------------------------------------
 1 | # Project-wide Gradle settings.
 2 | # IDE (e.g. Android Studio) users:
 3 | # Gradle settings configured through the IDE *will override*
 4 | # any settings specified in this file.
 5 | # For more details on how to configure your build environment visit
 6 | # http://www.gradle.org/docs/current/userguide/build_environment.html
 7 | # Specifies the JVM arguments used for the daemon process.
 8 | # The setting is particularly useful for tweaking memory settings.
 9 | org.gradle.jvmargs=-Xmx2048m -Dfile.encoding=UTF-8
10 | # When configured, Gradle will run in incubating parallel mode.
11 | # This option should only be used with decoupled projects. More details, visit
12 | # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
13 | # org.gradle.parallel=true
14 | # AndroidX package structure to make it clearer which packages are bundled with the
15 | # Android operating system, and which are packaged with your app"s APK
16 | # https://developer.android.com/topic/libraries/support-library/androidx-rn
17 | android.useAndroidX=true
18 | # Automatically convert third-party libraries to use AndroidX
19 | android.enableJetifier=true
20 | # Kotlin code style for this project: "official" or "obsolete":
21 | kotlin.code.style=official
22 | 


--------------------------------------------------------------------------------
/app/build.gradle:
--------------------------------------------------------------------------------
 1 | plugins {
 2 |     id 'com.android.application'
 3 |     id 'kotlin-android'
 4 | }
 5 | 
 6 | android {
 7 |     compileSdkVersion 30
 8 |     buildToolsVersion "29.0.3"
 9 | 
10 |     defaultConfig {
11 |         applicationId "com.android.academy.fundamentals"
12 |         minSdkVersion 21
13 |         targetSdkVersion 30
14 |         versionCode 1
15 |         versionName "1.0"
16 | 
17 |         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
18 |     }
19 | 
20 |     buildTypes {
21 |         release {
22 |             minifyEnabled false
23 |             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
24 |         }
25 |     }
26 |     compileOptions {
27 |         sourceCompatibility JavaVersion.VERSION_1_8
28 |         targetCompatibility JavaVersion.VERSION_1_8
29 |     }
30 |     kotlinOptions {
31 |         jvmTarget = '1.8'
32 |     }
33 | }
34 | 
35 | dependencies {
36 | 
37 |     implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
38 |     implementation 'androidx.core:core-ktx:1.3.2'
39 |     implementation 'androidx.appcompat:appcompat:1.2.0'
40 |     implementation 'com.google.android.material:material:1.3.0'
41 |     testImplementation 'junit:junit:4.+'
42 |     androidTestImplementation 'androidx.test.ext:junit:1.1.2'
43 |     androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
44 |     implementation 'androidx.constraintlayout:constraintlayout:2.0.0'
45 | }
46 | 


--------------------------------------------------------------------------------
/app/src/main/res/xml/ws04_animation_todo_01.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <MotionScene xmlns:android="http://schemas.android.com/apk/res/android"
 3 |     xmlns:motion="http://schemas.android.com/apk/res-auto">
 4 | 
 5 |         <!--
 6 |             TODO 01( do TODO 01_01 and TODO 01_02 and run app )
 7 |         -->
 8 | 
 9 |     <ConstraintSet android:id="@+id/start">
10 |         <!--
11 |             TODO 01_01(Set some small value width and height e.g 10dp)
12 |         -->
13 |         <Constraint
14 |             android:id="@+id/box"
15 |             android:layout_width="30dp"
16 |             android:layout_height="30dp"
17 |             motion:layout_constraintBottom_toBottomOf="parent"
18 |             motion:layout_constraintEnd_toEndOf="parent"
19 |             motion:layout_constraintStart_toStartOf="parent"
20 |             motion:layout_constraintTop_toTopOf="parent" />
21 | 
22 |     </ConstraintSet>
23 | 
24 |     <ConstraintSet android:id="@+id/end">
25 |         <!--
26 |                 TODO 01_02(Set some big value width and height e.g 1000)
27 |         -->
28 |         <Constraint
29 |             android:id="@+id/box"
30 |             android:layout_width="100dp"
31 |             android:layout_height="100dp"
32 |             motion:layout_constraintBottom_toBottomOf="parent"
33 |             motion:layout_constraintEnd_toEndOf="parent"
34 |             motion:layout_constraintStart_toStartOf="parent"
35 |             motion:layout_constraintTop_toTopOf="parent" />
36 | 
37 |     </ConstraintSet>
38 | 
39 |     <Transition
40 |         motion:constraintSetEnd="@+id/end"
41 |         motion:constraintSetStart="@+id/start"
42 |         motion:duration="3000" />
43 | </MotionScene>
44 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/android/academy/fundamentals/ws4/WS04Fragment.kt:
--------------------------------------------------------------------------------
 1 | package com.android.academy.fundamentals.ws4
 2 | 
 3 | import android.os.Bundle
 4 | import android.view.View
 5 | import android.widget.Button
 6 | import androidx.constraintlayout.motion.widget.MotionLayout
 7 | import androidx.fragment.app.Fragment
 8 | import com.android.academy.fundamentals.R
 9 | 
10 | /*
11 | * There are 5 TODOs in this workshop
12 | * For TODO 00 just write animation start methods
13 | * For TODO 01 change inside fragment_splash layout app:layoutDescription="@xml/ws04_animation_todo_01"
14 | * For TODO 02 change inside fragment_splash layout app:layoutDescription="@xml/ws04_animation_todo_02"
15 | * For TODO 03 change inside fragment_splash layout app:layoutDescription="@xml/ws04_animation_todo_03"
16 | * For TODO 01 change inside fragment_splash layout app:layoutDescription="@xml/ws04_animation_todo_04"
17 | */
18 | 
19 | class WS04Fragment : Fragment(R.layout.fragment_splash) {
20 | 
21 |     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
22 |         super.onViewCreated(view, savedInstanceState)
23 | 
24 |         var isTransitionToEnd = false
25 |         val motionLayout = view.findViewById<MotionLayout>(R.id.motion_layout)
26 |         val btnAnimate = view.findViewById<Button>(R.id.btn_animate)
27 | 
28 |         btnAnimate.setOnClickListener {
29 |             if (!isTransitionToEnd) {
30 |                 isTransitionToEnd = true
31 | //              TODO 00_01 to reverse transition animation call `transitionToEnd()` method from motionLayout
32 |             } else {
33 |                 isTransitionToEnd = false
34 | //              TODO 00_02 to start transition animation call `transitionToStart()` method from motionLayout
35 |             }
36 |         }
37 |     }
38 | }


--------------------------------------------------------------------------------
/.gitignore:
--------------------------------------------------------------------------------
 1 | # Built application files
 2 | *.apk
 3 | *.aar
 4 | *.ap_
 5 | *.aab
 6 | 
 7 | # Files for the ART/Dalvik VM
 8 | *.dex
 9 | 
10 | # Java class files
11 | *.class
12 | 
13 | # Generated files
14 | bin/
15 | gen/
16 | out/
17 | #  Uncomment the following line in case you need and you don't have the release build type files in your app
18 | # release/
19 | 
20 | # Gradle files
21 | .gradle/
22 | build/
23 | .idea/
24 | 
25 | # Local configuration file (sdk path, etc)
26 | local.properties
27 | 
28 | # Proguard folder generated by Eclipse
29 | proguard/
30 | 
31 | # Log Files
32 | *.log
33 | 
34 | # Android Studio Navigation editor temp files
35 | .navigation/
36 | 
37 | # Android Studio captures folder
38 | captures/
39 | 
40 | # IntelliJ
41 | *.iml
42 | .idea/workspace.xml
43 | .idea/tasks.xml
44 | .idea/gradle.xml
45 | .idea/assetWizardSettings.xml
46 | .idea/dictionaries
47 | .idea/libraries
48 | # Android Studio 3 in .gitignore file.
49 | .idea/caches
50 | .idea/modules.xml
51 | # Comment next line if keeping position of elements in Navigation Editor is relevant for you
52 | .idea/navEditor.xml
53 | 
54 | # Keystore files
55 | # Uncomment the following lines if you do not want to check your keystore files in.
56 | #*.jks
57 | #*.keystore
58 | 
59 | # External native build folder generated in Android Studio 2.2 and later
60 | .externalNativeBuild
61 | .cxx/
62 | 
63 | # Google Services (e.g. APIs or Firebase)
64 | # google-services.json
65 | 
66 | # Freeline
67 | freeline.py
68 | freeline/
69 | freeline_project_description.json
70 | 
71 | # fastlane
72 | fastlane/report.xml
73 | fastlane/Preview.html
74 | fastlane/screenshots
75 | fastlane/test_output
76 | fastlane/readme.md
77 | 
78 | # Version control
79 | vcs.xml
80 | 
81 | # lint
82 | lint/intermediates/
83 | lint/generated/
84 | lint/outputs/
85 | lint/tmp/
86 | # lint/reports/
87 | 


--------------------------------------------------------------------------------
/app/src/main/res/drawable-v24/ic_launcher_foreground.xml:
--------------------------------------------------------------------------------
 1 | <vector xmlns:android="http://schemas.android.com/apk/res/android"
 2 |     xmlns:aapt="http://schemas.android.com/aapt"
 3 |     android:width="108dp"
 4 |     android:height="108dp"
 5 |     android:viewportWidth="108"
 6 |     android:viewportHeight="108">
 7 |     <path android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
 8 |         <aapt:attr name="android:fillColor">
 9 |             <gradient
10 |                 android:endX="85.84757"
11 |                 android:endY="92.4963"
12 |                 android:startX="42.9492"
13 |                 android:startY="49.59793"
14 |                 android:type="linear">
15 |                 <item
16 |                     android:color="#44000000"
17 |                     android:offset="0.0" />
18 |                 <item
19 |                     android:color="#00000000"
20 |                     android:offset="1.0" />
21 |             </gradient>
22 |         </aapt:attr>
23 |     </path>
24 |     <path
25 |         android:fillColor="#FFFFFF"
26 |         android:fillType="nonZero"
27 |         android:pathData="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
28 |         android:strokeWidth="1"
29 |         android:strokeColor="#00000000" />
30 | </vector>
31 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/android/academy/fundamentals/workshop03/ColorsAdapter.kt:
--------------------------------------------------------------------------------
 1 | package com.android.academy.fundamentals.workshop03
 2 | 
 3 | import android.content.Context
 4 | import android.view.LayoutInflater
 5 | import android.view.View
 6 | import android.view.ViewGroup
 7 | import android.widget.LinearLayout
 8 | import android.widget.TextView
 9 | import androidx.recyclerview.widget.RecyclerView
10 | import com.android.academy.fundamentals.R
11 | 
12 | 
13 | class ColorsAdapter(context: Context, var colors: ArrayList<Int>) : RecyclerView.Adapter<ColorsAdapter.ColorViewHolder>() {
14 | 
15 |     private val layoutInflater = LayoutInflater.from(context)
16 |     var mItemAction: View.OnClickListener? = null
17 | 
18 |     override fun onCreateViewHolder(
19 |             parent: ViewGroup,
20 |             viewType: Int
21 |     ): ColorViewHolder = ColorViewHolder(layoutInflater.inflate(R.layout.item_color, parent, false))
22 | 
23 |     override fun onBindViewHolder(holder: ColorsAdapter.ColorViewHolder, position: Int) {
24 |         val color = colors[position]
25 |         holder.container.setBackgroundColor(color)
26 |         holder.textView.text = "#" + Integer.toHexString(color)
27 |     }
28 | 
29 |     override fun getItemCount(): Int = colors.size
30 | 
31 |     override fun getItemId(position: Int): Long {
32 |         return super.getItemId(position)
33 |     }
34 | 
35 |     fun addItem(pos: Int, color: Int) {
36 |         colors.add(color)
37 |         notifyItemInserted(pos)
38 |     }
39 | 
40 |     fun changeItem(pos: Int, color: Int) {
41 |         colors[pos] = color
42 |         notifyItemChanged(pos)
43 |     }
44 | 
45 |     fun removeItem(pos: Int) {
46 |         colors.remove(pos)
47 |         notifyItemRemoved(pos)
48 |     }
49 | 
50 |     inner class ColorViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
51 | 
52 |         var textView: TextView = itemView.findViewById(R.id.color)
53 |         var container = itemView as LinearLayout
54 | 
55 |         init {
56 |             itemView.setOnClickListener(mItemAction)
57 |         }
58 |     }
59 | }


--------------------------------------------------------------------------------
/app/src/main/res/xml/ws04_animation_todo_02.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <MotionScene xmlns:android="http://schemas.android.com/apk/res/android"
 3 |     xmlns:motion="http://schemas.android.com/apk/res-auto">
 4 | 
 5 |         <!--
 6 |               TODO 02( do TODO 02_01 and TODO 02_02 and run app )
 7 |         -->
 8 | 
 9 |     <Transition
10 |         motion:constraintSetEnd="@+id/end"
11 |         motion:constraintSetStart="@+id/start"
12 |         motion:duration="3000" />
13 | 
14 |     <ConstraintSet android:id="@+id/start">
15 |         <Constraint
16 |             android:id="@+id/view"
17 |             android:layout_width="200dp"
18 |             android:layout_height="wrap_content"
19 |             motion:layout_constraintBottom_toBottomOf="parent"
20 |             motion:layout_constraintEnd_toEndOf="parent"
21 |             motion:layout_constraintStart_toStartOf="parent"
22 |             motion:layout_constraintTop_toTopOf="parent">
23 | 
24 |             <!--
25 |                 TODO 02_01(Set some color from @color/colorName e.g @color/black)
26 |             -->
27 | 
28 |             <CustomAttribute
29 |                 motion:attributeName="textColor"
30 |                 motion:customColorValue="@color/black" />
31 |         </Constraint>
32 | 
33 |     </ConstraintSet>
34 | 
35 |     <ConstraintSet android:id="@+id/end">
36 |         <Constraint
37 |             android:id="@+id/view"
38 |             android:layout_width="200dp"
39 |             android:layout_height="wrap_content"
40 |             motion:layout_constraintBottom_toBottomOf="parent"
41 |             motion:layout_constraintEnd_toEndOf="parent"
42 |             motion:layout_constraintStart_toStartOf="parent"
43 |             motion:layout_constraintTop_toTopOf="parent">
44 | 
45 |             <!--
46 |                 TODO 02_02(Set some another color from @color/colorName e.g @color/white)
47 |             -->
48 | 
49 |             <CustomAttribute
50 |                 motion:attributeName="textColor"
51 |                 motion:customColorValue="@color/teal_200" />
52 |         </Constraint>
53 | 
54 |     </ConstraintSet>
55 | </MotionScene>


--------------------------------------------------------------------------------
/app/src/main/res/layout/final_fragment_splash.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <androidx.constraintlayout.motion.widget.MotionLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3 |     xmlns:app="http://schemas.android.com/apk/res-auto"
 4 |     android:id="@+id/motion_layout"
 5 |     android:layout_width="match_parent"
 6 |     android:layout_height="match_parent"
 7 |     app:layoutDescription="@xml/ws04_solution_animation">
 8 | 
 9 |     <View
10 |         android:id="@+id/box"
11 |         android:layout_width="220dp"
12 |         android:layout_height="220dp"
13 |         android:layout_marginTop="8dp"
14 |         android:layout_marginBottom="8dp"
15 |         android:background="@drawable/circle"
16 |         android:backgroundTint="#FFD600"
17 |         app:cornerRadius="250dp"
18 |         app:layout_constraintBottom_toBottomOf="parent"
19 |         app:layout_constraintEnd_toEndOf="parent"
20 |         app:layout_constraintStart_toStartOf="parent"
21 |         app:layout_constraintTop_toTopOf="parent" />
22 | 
23 |     <TextView
24 |         android:id="@+id/view"
25 |         android:layout_width="200dp"
26 |         android:layout_height="wrap_content"
27 |         android:elevation="100dp"
28 |         android:gravity="bottom|center"
29 |         android:text="MY APPLICATION"
30 |         android:textColor="#333"
31 |         android:textSize="24sp"
32 |         android:textStyle="bold"
33 |         app:layout_constraintBottom_toBottomOf="parent"
34 |         app:layout_constraintEnd_toEndOf="parent"
35 |         app:layout_constraintStart_toStartOf="parent"
36 |         app:layout_constraintTop_toTopOf="parent" />
37 | 
38 |     <Button
39 |         android:id="@+id/btn_animate"
40 |         android:layout_width="wrap_content"
41 |         android:layout_height="wrap_content"
42 |         android:layout_marginStart="8dp"
43 |         android:layout_marginTop="8dp"
44 |         android:layout_marginEnd="8dp"
45 |         android:layout_marginBottom="8dp"
46 |         android:text="Start Animation"
47 |         app:layout_constraintBottom_toBottomOf="parent"
48 |         app:layout_constraintEnd_toEndOf="parent"
49 |         app:layout_constraintStart_toStartOf="parent"
50 |         app:layout_constraintTop_toBottomOf="@+id/textView" />
51 | 
52 | </androidx.constraintlayout.motion.widget.MotionLayout>


--------------------------------------------------------------------------------
/app/src/main/res/layout/fragment_splash.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <androidx.constraintlayout.motion.widget.MotionLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3 |     xmlns:app="http://schemas.android.com/apk/res-auto"
 4 |     xmlns:tools="http://schemas.android.com/tools"
 5 |     android:id="@+id/motion_layout"
 6 |     android:layout_width="match_parent"
 7 |     android:layout_height="match_parent"
 8 |     app:layoutDescription="@xml/ws04_animation_todo_01">
 9 | 
10 |     <View
11 |         android:id="@+id/box"
12 |         android:layout_width="220dp"
13 |         android:layout_height="220dp"
14 |         android:layout_marginTop="8dp"
15 |         android:layout_marginBottom="8dp"
16 |         android:background="@drawable/circle"
17 |         android:backgroundTint="#FFD600"
18 |         app:cornerRadius="250dp"
19 |         app:layout_constraintBottom_toBottomOf="parent"
20 |         app:layout_constraintEnd_toEndOf="parent"
21 |         app:layout_constraintStart_toStartOf="parent"
22 |         app:layout_constraintTop_toTopOf="parent" />
23 | 
24 |     <TextView
25 |         android:id="@+id/view"
26 |         android:layout_width="200dp"
27 |         android:layout_height="wrap_content"
28 |         android:elevation="100dp"
29 |         android:gravity="bottom|center"
30 |         android:text="MY APPLICATION"
31 |         android:textColor="#333"
32 |         android:textSize="24sp"
33 |         android:textStyle="bold"
34 |         app:layout_constraintBottom_toBottomOf="parent"
35 |         app:layout_constraintEnd_toEndOf="parent"
36 |         app:layout_constraintStart_toStartOf="parent"
37 |         app:layout_constraintTop_toTopOf="parent" />
38 | 
39 |     <Button
40 |         android:id="@+id/btn_animate"
41 |         android:layout_width="wrap_content"
42 |         android:layout_height="wrap_content"
43 |         android:layout_marginStart="8dp"
44 |         android:layout_marginTop="8dp"
45 |         android:layout_marginEnd="8dp"
46 |         android:layout_marginBottom="8dp"
47 |         android:text="Start Animation"
48 |         app:layout_constraintBottom_toBottomOf="parent"
49 |         app:layout_constraintEnd_toEndOf="parent"
50 |         app:layout_constraintStart_toStartOf="parent"
51 |         app:layout_constraintTop_toBottomOf="@+id/textView" />
52 | 
53 | </androidx.constraintlayout.motion.widget.MotionLayout>


--------------------------------------------------------------------------------
/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 | set DIRNAME=%~dp0
12 | if "%DIRNAME%" == "" set DIRNAME=.
13 | set APP_BASE_NAME=%~n0
14 | set APP_HOME=%DIRNAME%
15 | 
16 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
17 | set DEFAULT_JVM_OPTS=
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 Windows variants
50 | 
51 | if not "%OS%" == "Windows_NT" goto win9xME_args
52 | 
53 | :win9xME_args
54 | @rem Slurp the command line arguments.
55 | set CMD_LINE_ARGS=
56 | set _SKIP=2
57 | 
58 | :win9xME_args_slurp
59 | if "x%~1" == "x" goto execute
60 | 
61 | set CMD_LINE_ARGS=%*
62 | 
63 | :execute
64 | @rem Setup the command line
65 | 
66 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
67 | 
68 | @rem Execute Gradle
69 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
70 | 
71 | :end
72 | @rem End local scope for the variables with windows NT shell
73 | if "%ERRORLEVEL%"=="0" goto mainEnd
74 | 
75 | :fail
76 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
77 | rem the _cmd.exe /c_ return code!
78 | if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
79 | exit /b 1
80 | 
81 | :mainEnd
82 | if "%OS%"=="Windows_NT" endlocal
83 | 
84 | :omega
85 | 


--------------------------------------------------------------------------------
/app/src/main/res/layout/wso3_fragment.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <androidx.constraintlayout.widget.ConstraintLayout
 3 |     xmlns:android="http://schemas.android.com/apk/res/android"
 4 |     xmlns:app="http://schemas.android.com/apk/res-auto"
 5 |     xmlns:tools="http://schemas.android.com/tools"
 6 |     android:layout_width="match_parent"
 7 |     android:layout_height="match_parent">
 8 | 
 9 |     <androidx.recyclerview.widget.RecyclerView
10 |         android:id="@+id/recycler_view"
11 |         android:layout_width="match_parent"
12 |         android:layout_height="0dp"
13 |         android:layout_marginBottom="16dp"
14 |         app:layout_constraintBottom_toTopOf="@id/operations"
15 |         app:layout_constraintEnd_toEndOf="parent"
16 |         app:layout_constraintStart_toStartOf="parent"
17 |         app:layout_constraintTop_toTopOf="parent"
18 |         tools:listitem="@layout/item_color">
19 | 
20 |     </androidx.recyclerview.widget.RecyclerView>
21 | 
22 |     <RadioGroup
23 |         android:id="@+id/operations"
24 |         android:layout_width="wrap_content"
25 |         android:layout_height="wrap_content"
26 |         android:layout_marginBottom="16dp"
27 |         android:orientation="horizontal"
28 |         app:layout_constraintBottom_toTopOf="@id/predictive_animations"
29 |         app:layout_constraintEnd_toEndOf="parent"
30 |         app:layout_constraintStart_toStartOf="parent">
31 | 
32 |         <RadioButton
33 |             android:id="@+id/delete_color"
34 |             android:layout_width="match_parent"
35 |             android:layout_height="wrap_content"
36 |             android:checked="true"
37 |             android:text="@string/delete_color" />
38 | 
39 |         <RadioButton
40 |             android:id="@+id/add_color"
41 |             android:layout_width="match_parent"
42 |             android:layout_height="wrap_content"
43 |             android:text="@string/add_color" />
44 | 
45 |         <RadioButton
46 |             android:id="@+id/change_color"
47 |             android:layout_width="match_parent"
48 |             android:layout_height="wrap_content"
49 |             android:text="@string/change_color" />
50 |     </RadioGroup>
51 | 
52 |     <CheckBox
53 |         android:id="@+id/predictive_animations"
54 |         android:layout_width="wrap_content"
55 |         android:layout_height="wrap_content"
56 |         android:layout_marginBottom="24dp"
57 |         android:text="@string/predictive_animations"
58 |         app:layout_constraintEnd_toStartOf="@+id/custom_animator"
59 |         app:layout_constraintHorizontal_chainStyle="spread"
60 |         app:layout_constraintStart_toStartOf="parent"
61 |         app:layout_constraintBottom_toBottomOf="parent"/>
62 | 
63 |     <CheckBox
64 |         android:id="@+id/custom_animator"
65 |         android:layout_width="wrap_content"
66 |         android:layout_height="wrap_content"
67 |         android:text="@string/custom_animator"
68 |         app:layout_constraintBottom_toBottomOf="@+id/predictive_animations"
69 |         app:layout_constraintEnd_toEndOf="parent"
70 |         app:layout_constraintStart_toEndOf="@+id/predictive_animations" />
71 | 
72 | 
73 | </androidx.constraintlayout.widget.ConstraintLayout>


--------------------------------------------------------------------------------
/app/src/main/java/com/android/academy/fundamentals/workshop03/WS03Fragment.kt:
--------------------------------------------------------------------------------
 1 | package com.android.academy.fundamentals.workshop03
 2 | 
 3 | import android.os.Bundle
 4 | import android.view.LayoutInflater
 5 | import android.view.View
 6 | import android.view.ViewGroup
 7 | import android.widget.CheckBox
 8 | import android.widget.RadioGroup
 9 | import androidx.fragment.app.Fragment
10 | import androidx.recyclerview.widget.DefaultItemAnimator
11 | import androidx.recyclerview.widget.LinearLayoutManager
12 | import androidx.recyclerview.widget.RecyclerView
13 | import com.android.academy.fundamentals.R
14 | 
15 | class WS03Fragment : Fragment() {
16 | 
17 |     private lateinit var mList : RecyclerView
18 |     private lateinit var mAdapter : ColorsAdapter
19 |     private lateinit var mOperationsRadioGroup : RadioGroup
20 |     private lateinit var mPredictiveAnimationsCB : CheckBox
21 | 
22 |     private val colorsHelper = ColorsHelper()
23 | 
24 |     override fun onCreateView(
25 |             inflater: LayoutInflater,
26 |             container: ViewGroup?,
27 |             savedInstanceState: Bundle?
28 |     ): View? {
29 |         return inflater.inflate(R.layout.wso3_fragment, container, false)
30 |     }
31 | 
32 |     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
33 |         mList = view.findViewById(R.id.recycler_view)
34 |         mPredictiveAnimationsCB = view.findViewById(R.id.predictive_animations)
35 |         mOperationsRadioGroup = view.findViewById(R.id.operations)
36 |         mAdapter = ColorsAdapter(context!!, colorsHelper.generateColors(40))
37 |         mAdapter.mItemAction = View.OnClickListener {
38 |             when (mOperationsRadioGroup.checkedRadioButtonId) {
39 |                 R.id.add_color -> addItem(it)
40 |                 R.id.change_color -> changeItem(it)
41 |                 R.id.delete_color -> deleteItem(it)
42 |             }
43 |         }
44 |         mList = view.findViewById(R.id.recycler_view)
45 |         mList.adapter = mAdapter
46 |         mList.layoutManager = object : LinearLayoutManager(context) {
47 |             // TODO 01 support predictive animations
48 |             //  override fun supportsPredictiveItemAnimations()
49 |             //  return mPredictiveAnimationsCB.isChecked
50 |         }
51 |         view.findViewById<CheckBox>(R.id.custom_animator).setOnCheckedChangeListener { buttonView, isChecked ->
52 |             // TODO 02 set up custom animations for changing
53 |             //  if checked set up for list ColorItemAnimator
54 |             //  else DefaultItemAnimator
55 |         }
56 |     }
57 | 
58 |     private fun addItem(view: View) {
59 |         val pos = mList.getChildAdapterPosition(view)
60 |         if (pos != RecyclerView.NO_POSITION) {
61 |             val color: Int = colorsHelper.generateColor()
62 |             mAdapter.addItem(pos, color)
63 |             if (pos == 0) {
64 |                 mList.scrollToPosition(0)
65 |             }
66 |         }
67 |     }
68 | 
69 |     private fun changeItem(view: View) {
70 |         val pos = mList.getChildAdapterPosition(view)
71 |         if (pos != RecyclerView.NO_POSITION) {
72 |             val color: Int = colorsHelper.generateColor()
73 |             mAdapter.changeItem(pos, color)
74 |         }
75 |     }
76 | 
77 |     private fun deleteItem(view: View) {
78 |         val pos = mList.getChildAdapterPosition(view)
79 |         if (pos != RecyclerView.NO_POSITION) {
80 |             mAdapter.removeItem(pos)
81 |         }
82 |     }
83 | }


--------------------------------------------------------------------------------
/app/src/main/res/xml/ws04_animation_todo_03.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <MotionScene xmlns:android="http://schemas.android.com/apk/res/android"
 3 |     xmlns:motion="http://schemas.android.com/apk/res-auto">
 4 | 
 5 |     <!--
 6 |           TODO 03( do TODO 03_01 and TODO 03_02 and run app )
 7 |     -->
 8 | 
 9 |     <Transition
10 |         motion:constraintSetEnd="@+id/end"
11 |         motion:constraintSetStart="@+id/start"
12 |         motion:duration="3000">
13 | 
14 |         <KeyFrameSet>
15 |           <!--TODO 03_01 just un comment below KeyAttribute tag-->
16 | 
17 |           <!--<KeyAttribute
18 |                 android:scaleX="0"
19 |                 android:scaleY="0"
20 |                 motion:framePosition="0"
21 |                 motion:motionTarget="@id/box"
22 |                 motion:transitionEasing="accelerate" />
23 |           -->
24 |             <!--
25 |                 TODO 03_02 just un comment below KeyAttribute tag and set framePosition="100" as means, it's the last keyframe also to increased box scale set scaleX and scaleY 6
26 |             -->
27 | 
28 |             <!--<KeyAttribute
29 |                    android:scaleX="0"
30 |                    android:scaleY="0"
31 |                    motion:framePosition="100"
32 |                    motion:motionTarget="@id/box"
33 |                    motion:transitionEasing="accelerate" />
34 |             -->
35 |            </KeyFrameSet>
36 |        </Transition>
37 | 
38 |        <ConstraintSet android:id="@+id/start">
39 |            <Constraint
40 |                android:id="@+id/view"
41 |                android:layout_width="200dp"
42 |                android:layout_height="wrap_content"
43 |                motion:layout_constraintBottom_toBottomOf="parent"
44 |                motion:layout_constraintEnd_toEndOf="parent"
45 |                motion:layout_constraintStart_toStartOf="parent"
46 |                motion:layout_constraintTop_toTopOf="parent" />
47 | 
48 |            <Constraint
49 |                android:id="@+id/box"
50 |                android:layout_width="220dp"
51 |                android:layout_height="220dp"
52 |                android:layout_marginTop="8dp"
53 |                android:layout_marginBottom="8dp"
54 |                motion:layout_constraintBottom_toBottomOf="parent"
55 |                motion:layout_constraintEnd_toEndOf="parent"
56 |                motion:layout_constraintStart_toStartOf="parent"
57 |                motion:layout_constraintTop_toTopOf="parent" />
58 | 
59 |        </ConstraintSet>
60 | 
61 |        <ConstraintSet android:id="@+id/end">
62 |            <Constraint
63 |                android:id="@+id/view"
64 |                android:layout_width="200dp"
65 |                android:layout_height="wrap_content"
66 |                motion:layout_constraintBottom_toBottomOf="parent"
67 |                motion:layout_constraintEnd_toEndOf="parent"
68 |                motion:layout_constraintStart_toStartOf="parent"
69 |                motion:layout_constraintTop_toTopOf="parent" />
70 | 
71 |            <Constraint
72 |                android:id="@+id/box"
73 |                android:layout_width="220dp"
74 |                android:layout_height="220dp"
75 |                android:layout_marginTop="8dp"
76 |                android:layout_marginBottom="8dp"
77 |                motion:layout_constraintBottom_toBottomOf="parent"
78 |                motion:layout_constraintEnd_toEndOf="parent"
79 |                motion:layout_constraintStart_toStartOf="parent"
80 |                motion:layout_constraintTop_toTopOf="parent" />
81 | 
82 |        </ConstraintSet>
83 |    </MotionScene>


--------------------------------------------------------------------------------
/app/src/main/java/com/android/academy/fundamentals/workshop03/solution/WS03SolutionFragment.kt:
--------------------------------------------------------------------------------
 1 | package com.android.academy.fundamentals.workshop03.solution
 2 | 
 3 | import android.os.Bundle
 4 | import android.view.LayoutInflater
 5 | import android.view.View
 6 | import android.view.ViewGroup
 7 | import android.widget.CheckBox
 8 | import android.widget.RadioGroup
 9 | import androidx.fragment.app.Fragment
10 | import androidx.recyclerview.widget.DefaultItemAnimator
11 | import androidx.recyclerview.widget.LinearLayoutManager
12 | import androidx.recyclerview.widget.RecyclerView
13 | import com.android.academy.fundamentals.R
14 | import com.android.academy.fundamentals.workshop03.ColorsAdapter
15 | import com.android.academy.fundamentals.workshop03.ColorsHelper
16 | 
17 | 
18 | class WS03SolutionFragment : Fragment() {
19 | 
20 |     private lateinit var mList : RecyclerView
21 |     private lateinit var mAdapter : ColorsAdapter
22 |     private lateinit var mOperationsRadioGroup : RadioGroup
23 |     private lateinit var mPredictiveAnimationsCB : CheckBox
24 | 
25 |     private val colorsHelper = ColorsHelper()
26 | 
27 |     override fun onCreateView(
28 |             inflater: LayoutInflater,
29 |             container: ViewGroup?,
30 |             savedInstanceState: Bundle?
31 |     ): View? {
32 |         return inflater.inflate(R.layout.wso3_fragment, container, false)
33 |     }
34 | 
35 |     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
36 |         mList = view.findViewById(R.id.recycler_view)
37 |         mPredictiveAnimationsCB = view.findViewById(R.id.predictive_animations)
38 |         mOperationsRadioGroup = view.findViewById(R.id.operations)
39 |         mAdapter = ColorsAdapter(context!!, colorsHelper.generateColors(40))
40 |         mAdapter.mItemAction = View.OnClickListener {
41 |             when (mOperationsRadioGroup.checkedRadioButtonId) {
42 |                 R.id.add_color -> addItem(it)
43 |                 R.id.change_color -> changeItem(it)
44 |                 R.id.delete_color -> deleteItem(it)
45 |             }
46 |         }
47 |         mList = view.findViewById(R.id.recycler_view)
48 |         mList.adapter = mAdapter
49 |         mList.layoutManager = object : LinearLayoutManager(context) {
50 |             override fun supportsPredictiveItemAnimations(): Boolean {
51 |                 return mPredictiveAnimationsCB.isChecked
52 |             }
53 |         }
54 |         view.findViewById<CheckBox>(R.id.custom_animator).setOnCheckedChangeListener { buttonView, isChecked ->
55 |             if (isChecked) {
56 |                 mList.itemAnimator = SolutionColorItemAnimator()
57 |             } else mList.itemAnimator = DefaultItemAnimator()
58 |         }
59 |     }
60 | 
61 |     private fun addItem(view: View) {
62 |         val pos = mList.getChildAdapterPosition(view)
63 |         if (pos != RecyclerView.NO_POSITION) {
64 |             val color: Int = colorsHelper.generateColor()
65 |             mAdapter.addItem(pos, color)
66 |             if (pos == 0) {
67 |                 mList.scrollToPosition(0)
68 |             }
69 |         }
70 |     }
71 | 
72 |     private fun changeItem(view: View) {
73 |         val pos = mList.getChildAdapterPosition(view)
74 |         if (pos != RecyclerView.NO_POSITION) {
75 |             val color: Int = colorsHelper.generateColor()
76 |             mAdapter.changeItem(pos, color)
77 |         }
78 |     }
79 | 
80 |     private fun deleteItem(view: View) {
81 |         val pos = mList.getChildAdapterPosition(view)
82 |         if (pos != RecyclerView.NO_POSITION) {
83 |             mAdapter.removeItem(pos)
84 |         }
85 |     }
86 | }


--------------------------------------------------------------------------------
/app/src/main/java/com/android/academy/fundamentals/workshop03/ColorItemAnimator.kt:
--------------------------------------------------------------------------------
  1 | package com.android.academy.fundamentals.workshop03
  2 | 
  3 | import android.animation.Animator
  4 | import android.animation.AnimatorListenerAdapter
  5 | import android.animation.AnimatorSet
  6 | import android.animation.ObjectAnimator
  7 | import android.graphics.Color
  8 | import android.graphics.drawable.ColorDrawable
  9 | import android.view.View
 10 | import androidx.recyclerview.widget.DefaultItemAnimator
 11 | import androidx.recyclerview.widget.RecyclerView
 12 | import com.android.academy.fundamentals.workshop03.solution.SolutionColorItemAnimator
 13 | 
 14 | class ColorItemAnimator: DefaultItemAnimator() {
 15 | 
 16 |     private val mAnimatorMap = HashMap<RecyclerView.ViewHolder, SolutionColorItemAnimator.AnimatorInfo>()
 17 | 
 18 |     // TODO 03 reuse updated view holder
 19 |     //  override canReuseUpdatedViewHolder(...)
 20 |     //  return true value
 21 | 
 22 |     override fun obtainHolderInfo(): ItemHolderInfo {
 23 |         return ColorItemHolderInfo()
 24 |     }
 25 | 
 26 |     override fun animateChange(oldViewHolder: RecyclerView.ViewHolder, newViewHolder: RecyclerView.ViewHolder, preInfo: ItemHolderInfo, postInfo: ItemHolderInfo): Boolean {
 27 |         val newHolder = newViewHolder as ColorsAdapter.ColorViewHolder
 28 |         val startColor = (preInfo as ColorItemHolderInfo).color
 29 |         val newColor = (postInfo as ColorItemHolderInfo).color
 30 |         val oldText = preInfo.text
 31 |         val newText = postInfo.text
 32 |         val fadeToBlack: ObjectAnimator = ObjectAnimatorHelper.ofArgb(newHolder.container, "backgroundColor", startColor, Color.BLACK)
 33 |         val fadeFromBlack: ObjectAnimator = ObjectAnimatorHelper.ofArgb(newHolder.container, "backgroundColor", Color.BLACK, newColor)
 34 |         val bgAnim = AnimatorSet()
 35 |         // TODO 04 set up how to play background animation
 36 |         //  use playSequentially(fadeToBlack, fadeFromBlack)
 37 | 
 38 |         val oldTextRotate = ObjectAnimator.ofFloat(newHolder.textView, View.ROTATION_X, 0f, 90f)
 39 |         val newTextRotate = ObjectAnimator.ofFloat(newHolder.textView, View.ROTATION_X, -90f, 0f)
 40 |         val textAnim = AnimatorSet()
 41 |         // TODO 05 set up how to play text animation
 42 |         //  use playSequentially(oldTextRotate, newTextRotate)
 43 | 
 44 |         oldTextRotate.addListener(object : AnimatorListenerAdapter() {
 45 |             override fun onAnimationStart(animation: Animator) {
 46 |                 newHolder.textView.text = oldText
 47 |             }
 48 | 
 49 |             override fun onAnimationEnd(animation: Animator) {
 50 |                 newHolder.textView.text = newText
 51 |             }
 52 |         })
 53 | 
 54 |         val changeAnim = AnimatorSet()
 55 |         // TODO 06 set up playing two animations together
 56 |         //  use playTogether(bgAnim, textAnim)
 57 |         changeAnim.addListener(object : AnimatorListenerAdapter() {
 58 |             override fun onAnimationEnd(animation: Animator) {
 59 |                 dispatchAnimationFinished(newHolder)
 60 |                 mAnimatorMap.remove(newHolder)
 61 |             }
 62 |         })
 63 | 
 64 |         val runningInfo = mAnimatorMap[newHolder]
 65 |         if (runningInfo != null) {
 66 |             val firstHalf = runningInfo.oldTextRotator != null && runningInfo.oldTextRotator.isRunning
 67 |             val currentPlayTime = if (firstHalf) runningInfo.oldTextRotator.currentPlayTime else runningInfo.newTextRotator.currentPlayTime
 68 |             runningInfo.overallAnim.cancel()
 69 |             if (firstHalf) {
 70 |                 fadeToBlack.currentPlayTime = currentPlayTime
 71 |                 oldTextRotate.currentPlayTime = currentPlayTime
 72 |             } else {
 73 |                 fadeToBlack.currentPlayTime = fadeToBlack.duration
 74 |                 oldTextRotate.currentPlayTime = oldTextRotate.duration
 75 |                 fadeFromBlack.currentPlayTime = currentPlayTime
 76 |                 newTextRotate.currentPlayTime = currentPlayTime
 77 |             }
 78 |         }
 79 | 
 80 |         val runningAnimInfo = SolutionColorItemAnimator.AnimatorInfo(changeAnim, fadeToBlack, fadeFromBlack, oldTextRotate, newTextRotate)
 81 |         mAnimatorMap[newHolder] = runningAnimInfo
 82 |         // TODO 07 start animation
 83 | 
 84 |         // No other transformations are required.
 85 |         // return super.animateChange(oldViewHolder, newViewHolder, preInfo, postInfo);
 86 | 
 87 |         return false
 88 |     }
 89 | 
 90 |     internal class ColorItemHolderInfo : ItemHolderInfo() {
 91 |         var color = 0
 92 |         var text: String? = null
 93 | 
 94 |         override fun setFrom(viewHolder: RecyclerView.ViewHolder, @AdapterChanges flags: Int): ItemHolderInfo {
 95 |             super.setFrom(viewHolder, flags)
 96 |             val holder = viewHolder as ColorsAdapter.ColorViewHolder
 97 |             color = (holder.container.background as ColorDrawable).color
 98 |             text = holder.textView.text as String
 99 |             return this
100 |         }
101 |     }
102 | }


--------------------------------------------------------------------------------
/app/src/main/java/com/android/academy/fundamentals/workshop03/ColorsHelper.kt:
--------------------------------------------------------------------------------
 1 | package com.android.academy.fundamentals.workshop03
 2 | 
 3 | import android.graphics.Color
 4 | import java.util.*
 5 | import kotlin.collections.ArrayList
 6 | import kotlin.math.sqrt
 7 | 
 8 | class ColorsHelper {
 9 | 
10 |     var colors: ArrayList<Int> = arrayListOf()
11 |     private var colorsSize = 0
12 | 
13 |     init {
14 |         // Material colors
15 |         val hexColors = arrayListOf(
16 |                 // Red
17 |                 "#FFEBEE", "#FFCDD2", "#EF9A9A", "#E57373", "#EF5350", "#F44336", "#E53935", "#D32F2F", "#C62828", "#B71C1C", "#FF8A80", "#FF5252", "#FF1744", "#D50000",
18 |                 // Pink
19 |                 "#FCE4EC", "#F8BBD0", "#F48FB1", "#F06292", "#EC407A", "#E91E63", "#D81B60", "#C2185B", "#AD1457", "#880E4F", "#FF80AB", "#FF4081", "#F50057", "#C51162",
20 |                 // Purple
21 |                 "#F3E5F5", "#E1BEE7", "#CE93D8", "#BA68C8", "#AB47BC", "#9C27B0", "#8E24AA", "#7B1FA2", "#6A1B9A", "#4A148C", "#EA80FC", "#E040FB", "#D500F9", "#AA00FF",
22 |                 // Deep Purple
23 |                 "#EDE7F6", "#D1C4E9", "#B39DDB", "#9575CD", "#7E57C2", "#673AB7", "#5E35B1", "#512DA8", "#4527A0", "#311B92", "#B388FF", "#7C4DFF", "#651FFF", "#6200EA",
24 |                 // Indigo
25 |                 "#E8EAF6", "#C5CAE9", "#9FA8DA", "#7986CB", "#5C6BC0", "#3F51B5", "#3949AB", "#303F9F", "#283593", "#1A237E", "#8C9EFF", "#536DFE", "#3D5AFE", "#304FFE",
26 |                 // Blue
27 |                 "#E3F2FD", "#BBDEFB", "#90CAF9", "#64B5F6", "#42A5F5", "#2196F3", "#1E88E5", "#1976D2", "#1565C0", "#0D47A1", "#82B1FF", "#448AFF", "#2979FF", "#2962FF",
28 |                 // Light Blue
29 |                 "#E1F5FE", "#B3E5FC", "#81D4FA", "#4FC3F7", "#29B6F6", "#03A9F4", "#039BE5", "#0288D1", "#0277BD", "#01579B", "#80D8FF", "#40C4FF", "#00B0FF", "#0091EA",
30 |                 // Cyan
31 |                 "#E0F7FA", "#B2EBF2", "#80DEEA", "#4DD0E1", "#26C6DA", "#00BCD4", "#00ACC1", "#0097A7", "#00838F", "#006064", "#84FFFF", "#18FFFF", "#00E5FF", "#00B8D4",
32 |                 // Teal
33 |                 "#E0F2F1", "#B2DFDB", "#80CBC4", "#4DB6AC", "#26A69A", "#009688", "#00897B", "#00796B", "#00695C", "#004D40", "#A7FFEB", "#64FFDA", "#1DE9B6", "#00BFA5",
34 |                 // Green
35 |                 "#E8F5E9", "#C8E6C9", "#A5D6A7", "#81C784", "#66BB6A", "#4CAF50", "#43A047", "#388E3C", "#2E7D32", "#1B5E20", "#B9F6CA", "#69F0AE", "#00E676", "#00C853",
36 |                 // Light Green
37 |                 "#F1F8E9", "#DCEDC8", "#C5E1A5", "#AED581", "#9CCC65", "#8BC34A", "#7CB342", "#689F38", "#558B2F", "#33691E", "#CCFF90", "#B2FF59", "#76FF03", "#64DD17",
38 |                 // Lime
39 |                 "#F9FBE7", "#F0F4C3", "#E6EE9C", "#DCE775", "#D4E157", "#CDDC39", "#C0CA33", "#AFB42B", "#9E9D24", "#827717", "#F4FF81", "#EEFF41", "#C6FF00", "#AEEA00",
40 |                 // Yellow
41 |                 "#FFFDE7", "#FFF9C4", "#FFF59D", "#FFF176", "#FFEE58", "#FFEB3B", "#FDD835", "#FBC02D", "#F9A825", "#F57F17", "#FFFF8D", "#FFFF00", "#FFEA00", "#FFD600",
42 |                 // Amber
43 |                 "#FFF8E1", "#FFECB3", "#FFE082", "#FFD54F", "#FFCA28", "#FFC107", "#FFB300", "#FFA000", "#FF8F00", "#FF6F00", "#FFE57F", "#FFD740", "#FFC400", "#FFAB00",
44 |                 // Orange
45 |                 "#FFF3E0", "#FFE0B2", "#FFCC80", "#FFB74D", "#FFA726", "#FF9800", "#FB8C00", "#F57C00", "#EF6C00", "#E65100", "#FFD180", "#FFAB40", "#FF9100", "#FF6D00",
46 |                 // Deep Orange
47 |                 "#FBE9E7", "#FFCCBC", "#FFAB91", "#FF8A65", "#FF7043", "#FF5722", "#F4511E", "#E64A19", "#D84315", "#BF360C", "#FF9E80", "#FF6E40", "#FF3D00", "#DD2C00",
48 |                 // Brown
49 |                 "#EFEBE9", "#D7CCC8", "#BCAAA4", "#A1887F", "#8D6E63", "#795548", "#6D4C41", "#5D4037", "#4E342E", "#3E2723",
50 |                 // Grey
51 |                 "#FAFAFA", "#F5F5F5", "#EEEEEE", "#E0E0E0", "#BDBDBD", "#9E9E9E", "#757575", "#616161", "#424242", "#212121",
52 |                 // Blue Grey
53 |                 "#ECEFF1", "#CFD8DC", "#B0BEC5", "#90A4AE", "#78909C", "#607D8B", "#546E7A", "#455A64", "#37474F", "#263238",
54 |                 // Black
55 |                 "#000000",
56 |                 // White
57 |                 "#FFFFFF")
58 | 
59 |         colorsSize = hexColors.size
60 |         for ( i in 0 until colorsSize)
61 |         {
62 |             colors.add(Color.parseColor(hexColors[i]))
63 |         }
64 |     }
65 | 
66 | 
67 |     fun generateColor(): Int {
68 |         return colors[Random().nextInt(colorsSize)]
69 |     }
70 | 
71 |     fun generateColors(size: Int): ArrayList<Int> {
72 |         val colors: ArrayList<Int> = ArrayList(size)
73 |         for (i in 0 until size) {
74 |             colors.add(generateColor())
75 |         }
76 |         return colors
77 |     }
78 | 
79 |     fun getTextColor(backgroundColor: Int): Int {
80 |         val rgb = intArrayOf(Color.red(backgroundColor), Color.green(backgroundColor), Color.blue(backgroundColor))
81 |         val brightness = sqrt(rgb[0] * rgb[0] * .241 + rgb[1] * rgb[1] * .691 + rgb[2] * rgb[2] * .068).toInt()
82 |         return if (brightness >= 220) {
83 |             -0x1000000
84 |         } else -0x1
85 |     }
86 | }


--------------------------------------------------------------------------------
/app/src/main/java/com/android/academy/fundamentals/workshop03/solution/SolutionColorItemAnimator.kt:
--------------------------------------------------------------------------------
  1 | package com.android.academy.fundamentals.workshop03.solution
  2 | 
  3 | import android.animation.Animator
  4 | import android.animation.AnimatorListenerAdapter
  5 | import android.animation.AnimatorSet
  6 | import android.animation.ObjectAnimator
  7 | import android.graphics.Color
  8 | import android.graphics.drawable.ColorDrawable
  9 | import android.view.View
 10 | import androidx.recyclerview.widget.DefaultItemAnimator
 11 | import androidx.recyclerview.widget.RecyclerView
 12 | import com.android.academy.fundamentals.workshop03.ColorsAdapter.ColorViewHolder
 13 | import com.android.academy.fundamentals.workshop03.ObjectAnimatorHelper
 14 | 
 15 | 
 16 | class SolutionColorItemAnimator: DefaultItemAnimator() {
 17 | 
 18 |     private val mAnimatorMap = HashMap<RecyclerView.ViewHolder, AnimatorInfo>()
 19 | 
 20 |     override fun canReuseUpdatedViewHolder(viewHolder: RecyclerView.ViewHolder): Boolean = true
 21 | 
 22 |     override fun obtainHolderInfo(): ItemHolderInfo {
 23 |         return ColorItemHolderInfo()
 24 |     }
 25 | 
 26 |     override fun animateChange(oldViewHolder: RecyclerView.ViewHolder, newViewHolder: RecyclerView.ViewHolder, preInfo: ItemHolderInfo, postInfo: ItemHolderInfo): Boolean {
 27 |         val newHolder = newViewHolder as ColorViewHolder
 28 |         val startColor = (preInfo as ColorItemHolderInfo).color
 29 |         val newColor = (postInfo as ColorItemHolderInfo).color
 30 |         val oldText = preInfo.text
 31 |         val newText = postInfo.text
 32 |         val fadeToBlack: ObjectAnimator = ObjectAnimatorHelper.ofArgb(newHolder.container, "backgroundColor", startColor, Color.BLACK)
 33 |         val fadeFromBlack: ObjectAnimator = ObjectAnimatorHelper.ofArgb(newHolder.container, "backgroundColor", Color.BLACK, newColor)
 34 |         val bgAnim = AnimatorSet()
 35 |         bgAnim.playSequentially(fadeToBlack, fadeFromBlack)
 36 | 
 37 |         val oldTextRotate = ObjectAnimator.ofFloat(newHolder.textView, View.ROTATION_X, 0f, 90f)
 38 |         val newTextRotate = ObjectAnimator.ofFloat(newHolder.textView, View.ROTATION_X, -90f, 0f)
 39 |         val textAnim = AnimatorSet()
 40 |         textAnim.playSequentially(oldTextRotate, newTextRotate)
 41 | 
 42 |         oldTextRotate.addListener(object : AnimatorListenerAdapter() {
 43 |             override fun onAnimationStart(animation: Animator) {
 44 |                 newHolder.textView.text = oldText
 45 |             }
 46 | 
 47 |             override fun onAnimationEnd(animation: Animator) {
 48 |                 newHolder.textView.text = newText
 49 |             }
 50 |         })
 51 | 
 52 |         val changeAnim = AnimatorSet()
 53 |         changeAnim.playTogether(bgAnim, textAnim)
 54 |         changeAnim.addListener(object : AnimatorListenerAdapter() {
 55 |             override fun onAnimationEnd(animation: Animator) {
 56 |                 dispatchAnimationFinished(newHolder)
 57 |                 mAnimatorMap.remove(newHolder)
 58 |             }
 59 |         })
 60 | 
 61 |         val runningInfo = mAnimatorMap[newHolder]
 62 |         if (runningInfo != null) {
 63 |             val firstHalf = runningInfo.oldTextRotator != null && runningInfo.oldTextRotator.isRunning
 64 |             val currentPlayTime = if (firstHalf) runningInfo.oldTextRotator.currentPlayTime else runningInfo.newTextRotator.currentPlayTime
 65 |             runningInfo.overallAnim.cancel()
 66 |             if (firstHalf) {
 67 |                 fadeToBlack.currentPlayTime = currentPlayTime
 68 |                 oldTextRotate.currentPlayTime = currentPlayTime
 69 |             } else {
 70 |                 fadeToBlack.currentPlayTime = fadeToBlack.duration
 71 |                 oldTextRotate.currentPlayTime = oldTextRotate.duration
 72 |                 fadeFromBlack.currentPlayTime = currentPlayTime
 73 |                 newTextRotate.currentPlayTime = currentPlayTime
 74 |             }
 75 |         }
 76 | 
 77 |         val runningAnimInfo = AnimatorInfo(changeAnim, fadeToBlack, fadeFromBlack, oldTextRotate, newTextRotate)
 78 |         mAnimatorMap[newHolder] = runningAnimInfo
 79 |         changeAnim.start()
 80 | 
 81 |         // No other transformations are required.
 82 |         // return super.animateChange(oldViewHolder, newViewHolder, preInfo, postInfo);
 83 | 
 84 |         return false
 85 |     }
 86 | 
 87 |     internal class ColorItemHolderInfo : ItemHolderInfo() {
 88 |         var color = 0
 89 |         var text: String? = null
 90 | 
 91 |         override fun setFrom(viewHolder: RecyclerView.ViewHolder, @AdapterChanges flags: Int): ItemHolderInfo {
 92 |             super.setFrom(viewHolder, flags)
 93 |             val holder = viewHolder as ColorViewHolder
 94 |             color = (holder.container.background as ColorDrawable).color
 95 |             text = holder.textView.text as String
 96 |             return this
 97 |         }
 98 |     }
 99 | 
100 |     data class AnimatorInfo(
101 |             var overallAnim: Animator,
102 |             var fadeToBlackAnim: ObjectAnimator,
103 |             var fadeFromBlackAnim: ObjectAnimator,
104 |             var oldTextRotator: ObjectAnimator,
105 |             var newTextRotator: ObjectAnimator)
106 | }


--------------------------------------------------------------------------------
/app/src/main/res/xml/ws04_solution_animation.xml:
--------------------------------------------------------------------------------
  1 | <?xml version="1.0" encoding="utf-8"?>
  2 | <MotionScene xmlns:android="http://schemas.android.com/apk/res/android"
  3 |     xmlns:motion="http://schemas.android.com/apk/res-auto">
  4 | 
  5 |     <Transition
  6 |         motion:constraintSetEnd="@+id/end"
  7 |         motion:constraintSetStart="@+id/start"
  8 |         motion:duration="3000">
  9 | 
 10 |         <KeyFrameSet>
 11 |             <!-- Box -->
 12 |             <KeyAttribute
 13 |                 android:scaleX="0"
 14 |                 android:scaleY="0"
 15 |                 android:translationY="-250dp"
 16 |                 motion:framePosition="0"
 17 |                 motion:motionTarget="@id/box"
 18 |                 motion:transitionEasing="accelerate" />
 19 | 
 20 |             <KeyAttribute
 21 |                 android:translationY="-300dp"
 22 |                 motion:framePosition="20"
 23 |                 motion:motionTarget="@id/box"
 24 |                 motion:transitionEasing="accelerate" />
 25 | 
 26 |             <KeyAttribute
 27 |                 android:scaleX="0.4"
 28 |                 android:scaleY="0.4"
 29 |                 android:translationY="24dp"
 30 |                 motion:framePosition="50"
 31 |                 motion:motionTarget="@id/box"
 32 |                 motion:transitionEasing="accelerate" />
 33 | 
 34 |             <KeyAttribute
 35 |                 android:translationY="0dp"
 36 |                 motion:framePosition="60"
 37 |                 motion:motionTarget="@id/box"
 38 |                 motion:transitionEasing="accelerate" />
 39 | 
 40 |             <KeyAttribute
 41 |                 android:scaleX="6"
 42 |                 android:scaleY="6"
 43 |                 motion:framePosition="100"
 44 |                 motion:motionTarget="@id/box"
 45 |                 motion:transitionEasing="accelerate" />
 46 | 
 47 |             <!-- Text View -->
 48 |             <KeyAttribute
 49 |                 android:alpha="0"
 50 |                 android:scaleX="0.8"
 51 |                 android:scaleY="0.8"
 52 |                 motion:framePosition="0"
 53 |                 motion:motionTarget="@id/view"
 54 |                 motion:transitionEasing="accelerate" >
 55 |                 <CustomAttribute
 56 |                     motion:attributeName="textColor"
 57 |                     motion:customColorValue="#222" />
 58 |             </KeyAttribute>
 59 | 
 60 |             <KeyAttribute
 61 |                 android:alpha="1"
 62 |                 android:scaleX="1"
 63 |                 android:scaleY="1"
 64 |                 motion:framePosition="15"
 65 |                 motion:motionTarget="@id/view"
 66 |                 motion:transitionEasing="accelerate" />
 67 | 
 68 |             <KeyAttribute
 69 |                 motion:framePosition="50"
 70 |                 motion:motionTarget="@id/view"
 71 |                 motion:transitionEasing="accelerate" >
 72 |                 <CustomAttribute
 73 |                     motion:attributeName="textColor"
 74 |                     motion:customColorValue="#222" />
 75 |             </KeyAttribute>
 76 | 
 77 |             <KeyAttribute
 78 |                 motion:framePosition="80"
 79 |                 motion:motionTarget="@id/view"
 80 |                 motion:transitionEasing="accelerate" >
 81 |                 <CustomAttribute
 82 |                     motion:attributeName="textColor"
 83 |                     motion:customColorValue="#fff" />
 84 |             </KeyAttribute>
 85 | 
 86 |         </KeyFrameSet>
 87 |     </Transition>
 88 | 
 89 |     <ConstraintSet android:id="@+id/start">
 90 |         <Constraint
 91 |             android:id="@+id/view"
 92 |             android:layout_width="200dp"
 93 |             android:layout_height="wrap_content"
 94 |             motion:layout_constraintBottom_toBottomOf="parent"
 95 |             motion:layout_constraintEnd_toEndOf="parent"
 96 |             motion:layout_constraintStart_toStartOf="parent"
 97 |             motion:layout_constraintTop_toTopOf="parent" />
 98 | 
 99 |         <Constraint
100 |             android:id="@+id/box"
101 |             android:layout_width="220dp"
102 |             android:layout_height="220dp"
103 |             android:layout_marginTop="8dp"
104 |             android:layout_marginBottom="8dp"
105 |             motion:layout_constraintBottom_toBottomOf="parent"
106 |             motion:layout_constraintEnd_toEndOf="parent"
107 |             motion:layout_constraintStart_toStartOf="parent"
108 |             motion:layout_constraintTop_toTopOf="parent" />
109 | 
110 |     </ConstraintSet>
111 | 
112 |     <ConstraintSet android:id="@+id/end">
113 |         <Constraint
114 |             android:id="@+id/view"
115 |             android:layout_width="200dp"
116 |             android:layout_height="wrap_content"
117 |             motion:layout_constraintBottom_toBottomOf="parent"
118 |             motion:layout_constraintEnd_toEndOf="parent"
119 |             motion:layout_constraintStart_toStartOf="parent"
120 |             motion:layout_constraintTop_toTopOf="parent" />
121 | 
122 |         <Constraint
123 |             android:id="@+id/box"
124 |             android:layout_width="220dp"
125 |             android:layout_height="220dp"
126 |             android:layout_marginTop="8dp"
127 |             android:layout_marginBottom="8dp"
128 |             motion:layout_constraintBottom_toBottomOf="parent"
129 |             motion:layout_constraintEnd_toEndOf="parent"
130 |             motion:layout_constraintStart_toStartOf="parent"
131 |             motion:layout_constraintTop_toTopOf="parent" />
132 | 
133 |     </ConstraintSet>
134 | </MotionScene>


--------------------------------------------------------------------------------
/app/src/main/res/xml/ws04_animation_todo_04.xml:
--------------------------------------------------------------------------------
  1 | <?xml version="1.0" encoding="utf-8"?>
  2 | <MotionScene xmlns:android="http://schemas.android.com/apk/res/android"
  3 |     xmlns:motion="http://schemas.android.com/apk/res-auto">
  4 | 
  5 |     <!--
  6 |         TODO 04( do TODO 04_01 and TODO 04_02 and run app )
  7 |     -->
  8 | 
  9 |     <Transition
 10 |         motion:constraintSetEnd="@+id/end"
 11 |         motion:constraintSetStart="@+id/start"
 12 |         motion:duration="3000">
 13 | 
 14 |         <KeyFrameSet>
 15 |             <KeyAttribute
 16 |                 android:scaleX="0"
 17 |                 android:scaleY="0"
 18 |                 android:translationY="-250dp"
 19 |                 motion:framePosition="0"
 20 |                 motion:motionTarget="@id/box"
 21 |                 motion:transitionEasing="accelerate" />
 22 |             <!--TODO 04_01 just uncomment -->
 23 |             <!--
 24 |                 <KeyAttribute
 25 |                     android:translationY="-300dp"
 26 |                     motion:framePosition="20"
 27 |                     motion:motionTarget="@id/box"
 28 |                     motion:transitionEasing="accelerate" />
 29 | 
 30 |                 <KeyAttribute
 31 |                     android:scaleX="0.4"
 32 |                     android:scaleY="0.4"
 33 |                     android:translationY="24dp"
 34 |                     motion:framePosition="50"
 35 |                     motion:motionTarget="@id/box"
 36 |                     motion:transitionEasing="accelerate" />
 37 | 
 38 |                 <KeyAttribute
 39 |                     android:translationY="0dp"
 40 |                     motion:framePosition="60"
 41 |                     motion:motionTarget="@id/box"
 42 |                     motion:transitionEasing="accelerate" />
 43 |             -->
 44 |             <KeyAttribute
 45 |                 android:scaleX="6"
 46 |                 android:scaleY="6"
 47 |                 motion:framePosition="100"
 48 |                 motion:motionTarget="@id/box"
 49 |                 motion:transitionEasing="accelerate" />
 50 | 
 51 | 
 52 |             <!--TODO 04_02 just uncomment -->
 53 |             <!--
 54 |                 <KeyAttribute
 55 |                     android:alpha="0"
 56 |                     android:scaleX="0.8"
 57 |                     android:scaleY="0.8"
 58 |                     motion:framePosition="0"
 59 |                     motion:motionTarget="@id/view"
 60 |                     motion:transitionEasing="accelerate" >
 61 |                     <CustomAttribute
 62 |                         motion:attributeName="textColor"
 63 |                         motion:customColorValue="#222" />
 64 |                 </KeyAttribute>
 65 | 
 66 |                 <KeyAttribute
 67 |                     android:alpha="1"
 68 |                     android:scaleX="1"
 69 |                     android:scaleY="1"
 70 |                     motion:framePosition="15"
 71 |                     motion:motionTarget="@id/view"
 72 |                     motion:transitionEasing="accelerate" />
 73 | 
 74 |                 <KeyAttribute
 75 |                     motion:framePosition="50"
 76 |                     motion:motionTarget="@id/view"
 77 |                     motion:transitionEasing="accelerate" >
 78 |                     <CustomAttribute
 79 |                         motion:attributeName="textColor"
 80 |                         motion:customColorValue="#222" />
 81 |                 </KeyAttribute>
 82 | 
 83 |                 <KeyAttribute
 84 |                     motion:framePosition="80"
 85 |                     motion:motionTarget="@id/view"
 86 |                     motion:transitionEasing="accelerate" >
 87 |                     <CustomAttribute
 88 |                         motion:attributeName="textColor"
 89 |                         motion:customColorValue="#fff" />
 90 |                 </KeyAttribute>
 91 |             -->
 92 |         </KeyFrameSet>
 93 |     </Transition>
 94 | 
 95 |     <ConstraintSet android:id="@+id/start">
 96 |         <Constraint
 97 |             android:id="@+id/view"
 98 |             android:layout_width="200dp"
 99 |             android:layout_height="wrap_content"
100 |             motion:layout_constraintBottom_toBottomOf="parent"
101 |             motion:layout_constraintEnd_toEndOf="parent"
102 |             motion:layout_constraintStart_toStartOf="parent"
103 |             motion:layout_constraintTop_toTopOf="parent" />
104 | 
105 |         <Constraint
106 |             android:id="@+id/box"
107 |             android:layout_width="220dp"
108 |             android:layout_height="220dp"
109 |             android:layout_marginTop="8dp"
110 |             android:layout_marginBottom="8dp"
111 |             motion:layout_constraintBottom_toBottomOf="parent"
112 |             motion:layout_constraintEnd_toEndOf="parent"
113 |             motion:layout_constraintStart_toStartOf="parent"
114 |             motion:layout_constraintTop_toTopOf="parent" />
115 | 
116 |     </ConstraintSet>
117 | 
118 |     <ConstraintSet android:id="@+id/end">
119 |         <Constraint
120 |             android:id="@+id/view"
121 |             android:layout_width="200dp"
122 |             android:layout_height="wrap_content"
123 |             motion:layout_constraintBottom_toBottomOf="parent"
124 |             motion:layout_constraintEnd_toEndOf="parent"
125 |             motion:layout_constraintStart_toStartOf="parent"
126 |             motion:layout_constraintTop_toTopOf="parent" />
127 | 
128 |         <Constraint
129 |             android:id="@+id/box"
130 |             android:layout_width="220dp"
131 |             android:layout_height="220dp"
132 |             android:layout_marginTop="8dp"
133 |             android:layout_marginBottom="8dp"
134 |             motion:layout_constraintBottom_toBottomOf="parent"
135 |             motion:layout_constraintEnd_toEndOf="parent"
136 |             motion:layout_constraintStart_toStartOf="parent"
137 |             motion:layout_constraintTop_toTopOf="parent" />
138 | 
139 |     </ConstraintSet>
140 | </MotionScene>


--------------------------------------------------------------------------------
/gradlew:
--------------------------------------------------------------------------------
  1 | #!/usr/bin/env sh
  2 | 
  3 | ##############################################################################
  4 | ##
  5 | ##  Gradle start up script for UN*X
  6 | ##
  7 | ##############################################################################
  8 | 
  9 | # Attempt to set APP_HOME
 10 | # Resolve links: $0 may be a link
 11 | PRG="$0"
 12 | # Need this for relative symlinks.
 13 | while [ -h "$PRG" ] ; do
 14 |     ls=`ls -ld "$PRG"`
 15 |     link=`expr "$ls" : '.*-> \(.*\)$'`
 16 |     if expr "$link" : '/.*' > /dev/null; then
 17 |         PRG="$link"
 18 |     else
 19 |         PRG=`dirname "$PRG"`"/$link"
 20 |     fi
 21 | done
 22 | SAVED="`pwd`"
 23 | cd "`dirname \"$PRG\"`/" >/dev/null
 24 | APP_HOME="`pwd -P`"
 25 | cd "$SAVED" >/dev/null
 26 | 
 27 | APP_NAME="Gradle"
 28 | APP_BASE_NAME=`basename "$0"`
 29 | 
 30 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
 31 | DEFAULT_JVM_OPTS=""
 32 | 
 33 | # Use the maximum available, or set MAX_FD != -1 to use that value.
 34 | MAX_FD="maximum"
 35 | 
 36 | warn () {
 37 |     echo "$*"
 38 | }
 39 | 
 40 | die () {
 41 |     echo
 42 |     echo "$*"
 43 |     echo
 44 |     exit 1
 45 | }
 46 | 
 47 | # OS specific support (must be 'true' or 'false').
 48 | cygwin=false
 49 | msys=false
 50 | darwin=false
 51 | nonstop=false
 52 | case "`uname`" in
 53 |   CYGWIN* )
 54 |     cygwin=true
 55 |     ;;
 56 |   Darwin* )
 57 |     darwin=true
 58 |     ;;
 59 |   MINGW* )
 60 |     msys=true
 61 |     ;;
 62 |   NONSTOP* )
 63 |     nonstop=true
 64 |     ;;
 65 | esac
 66 | 
 67 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
 68 | 
 69 | # Determine the Java command to use to start the JVM.
 70 | if [ -n "$JAVA_HOME" ] ; then
 71 |     if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
 72 |         # IBM's JDK on AIX uses strange locations for the executables
 73 |         JAVACMD="$JAVA_HOME/jre/sh/java"
 74 |     else
 75 |         JAVACMD="$JAVA_HOME/bin/java"
 76 |     fi
 77 |     if [ ! -x "$JAVACMD" ] ; then
 78 |         die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
 79 | 
 80 | Please set the JAVA_HOME variable in your environment to match the
 81 | location of your Java installation."
 82 |     fi
 83 | else
 84 |     JAVACMD="java"
 85 |     which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
 86 | 
 87 | Please set the JAVA_HOME variable in your environment to match the
 88 | location of your Java installation."
 89 | fi
 90 | 
 91 | # Increase the maximum file descriptors if we can.
 92 | if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
 93 |     MAX_FD_LIMIT=`ulimit -H -n`
 94 |     if [ $? -eq 0 ] ; then
 95 |         if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
 96 |             MAX_FD="$MAX_FD_LIMIT"
 97 |         fi
 98 |         ulimit -n $MAX_FD
 99 |         if [ $? -ne 0 ] ; then
100 |             warn "Could not set maximum file descriptor limit: $MAX_FD"
101 |         fi
102 |     else
103 |         warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
104 |     fi
105 | fi
106 | 
107 | # For Darwin, add options to specify how the application appears in the dock
108 | if $darwin; then
109 |     GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
110 | fi
111 | 
112 | # For Cygwin, switch paths to Windows format before running java
113 | if $cygwin ; then
114 |     APP_HOME=`cygpath --path --mixed "$APP_HOME"`
115 |     CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
116 |     JAVACMD=`cygpath --unix "$JAVACMD"`
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 | # Escape application args
158 | save () {
159 |     for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
160 |     echo " "
161 | }
162 | APP_ARGS=$(save "$@")
163 | 
164 | # Collect all arguments for the java command, following the shell quoting and substitution rules
165 | eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
166 | 
167 | # by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
168 | if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
169 |   cd "$(dirname "$0")"
170 | fi
171 | 
172 | exec "$JAVACMD" "$@"
173 | 


--------------------------------------------------------------------------------
/app/src/main/res/drawable/ic_launcher_background.xml:
--------------------------------------------------------------------------------
  1 | <?xml version="1.0" encoding="utf-8"?>
  2 | <vector xmlns:android="http://schemas.android.com/apk/res/android"
  3 |     android:width="108dp"
  4 |     android:height="108dp"
  5 |     android:viewportWidth="108"
  6 |     android:viewportHeight="108">
  7 |     <path
  8 |         android:fillColor="#3DDC84"
  9 |         android:pathData="M0,0h108v108h-108z" />
 10 |     <path
 11 |         android:fillColor="#00000000"
 12 |         android:pathData="M9,0L9,108"
 13 |         android:strokeWidth="0.8"
 14 |         android:strokeColor="#33FFFFFF" />
 15 |     <path
 16 |         android:fillColor="#00000000"
 17 |         android:pathData="M19,0L19,108"
 18 |         android:strokeWidth="0.8"
 19 |         android:strokeColor="#33FFFFFF" />
 20 |     <path
 21 |         android:fillColor="#00000000"
 22 |         android:pathData="M29,0L29,108"
 23 |         android:strokeWidth="0.8"
 24 |         android:strokeColor="#33FFFFFF" />
 25 |     <path
 26 |         android:fillColor="#00000000"
 27 |         android:pathData="M39,0L39,108"
 28 |         android:strokeWidth="0.8"
 29 |         android:strokeColor="#33FFFFFF" />
 30 |     <path
 31 |         android:fillColor="#00000000"
 32 |         android:pathData="M49,0L49,108"
 33 |         android:strokeWidth="0.8"
 34 |         android:strokeColor="#33FFFFFF" />
 35 |     <path
 36 |         android:fillColor="#00000000"
 37 |         android:pathData="M59,0L59,108"
 38 |         android:strokeWidth="0.8"
 39 |         android:strokeColor="#33FFFFFF" />
 40 |     <path
 41 |         android:fillColor="#00000000"
 42 |         android:pathData="M69,0L69,108"
 43 |         android:strokeWidth="0.8"
 44 |         android:strokeColor="#33FFFFFF" />
 45 |     <path
 46 |         android:fillColor="#00000000"
 47 |         android:pathData="M79,0L79,108"
 48 |         android:strokeWidth="0.8"
 49 |         android:strokeColor="#33FFFFFF" />
 50 |     <path
 51 |         android:fillColor="#00000000"
 52 |         android:pathData="M89,0L89,108"
 53 |         android:strokeWidth="0.8"
 54 |         android:strokeColor="#33FFFFFF" />
 55 |     <path
 56 |         android:fillColor="#00000000"
 57 |         android:pathData="M99,0L99,108"
 58 |         android:strokeWidth="0.8"
 59 |         android:strokeColor="#33FFFFFF" />
 60 |     <path
 61 |         android:fillColor="#00000000"
 62 |         android:pathData="M0,9L108,9"
 63 |         android:strokeWidth="0.8"
 64 |         android:strokeColor="#33FFFFFF" />
 65 |     <path
 66 |         android:fillColor="#00000000"
 67 |         android:pathData="M0,19L108,19"
 68 |         android:strokeWidth="0.8"
 69 |         android:strokeColor="#33FFFFFF" />
 70 |     <path
 71 |         android:fillColor="#00000000"
 72 |         android:pathData="M0,29L108,29"
 73 |         android:strokeWidth="0.8"
 74 |         android:strokeColor="#33FFFFFF" />
 75 |     <path
 76 |         android:fillColor="#00000000"
 77 |         android:pathData="M0,39L108,39"
 78 |         android:strokeWidth="0.8"
 79 |         android:strokeColor="#33FFFFFF" />
 80 |     <path
 81 |         android:fillColor="#00000000"
 82 |         android:pathData="M0,49L108,49"
 83 |         android:strokeWidth="0.8"
 84 |         android:strokeColor="#33FFFFFF" />
 85 |     <path
 86 |         android:fillColor="#00000000"
 87 |         android:pathData="M0,59L108,59"
 88 |         android:strokeWidth="0.8"
 89 |         android:strokeColor="#33FFFFFF" />
 90 |     <path
 91 |         android:fillColor="#00000000"
 92 |         android:pathData="M0,69L108,69"
 93 |         android:strokeWidth="0.8"
 94 |         android:strokeColor="#33FFFFFF" />
 95 |     <path
 96 |         android:fillColor="#00000000"
 97 |         android:pathData="M0,79L108,79"
 98 |         android:strokeWidth="0.8"
 99 |         android:strokeColor="#33FFFFFF" />
100 |     <path
101 |         android:fillColor="#00000000"
102 |         android:pathData="M0,89L108,89"
103 |         android:strokeWidth="0.8"
104 |         android:strokeColor="#33FFFFFF" />
105 |     <path
106 |         android:fillColor="#00000000"
107 |         android:pathData="M0,99L108,99"
108 |         android:strokeWidth="0.8"
109 |         android:strokeColor="#33FFFFFF" />
110 |     <path
111 |         android:fillColor="#00000000"
112 |         android:pathData="M19,29L89,29"
113 |         android:strokeWidth="0.8"
114 |         android:strokeColor="#33FFFFFF" />
115 |     <path
116 |         android:fillColor="#00000000"
117 |         android:pathData="M19,39L89,39"
118 |         android:strokeWidth="0.8"
119 |         android:strokeColor="#33FFFFFF" />
120 |     <path
121 |         android:fillColor="#00000000"
122 |         android:pathData="M19,49L89,49"
123 |         android:strokeWidth="0.8"
124 |         android:strokeColor="#33FFFFFF" />
125 |     <path
126 |         android:fillColor="#00000000"
127 |         android:pathData="M19,59L89,59"
128 |         android:strokeWidth="0.8"
129 |         android:strokeColor="#33FFFFFF" />
130 |     <path
131 |         android:fillColor="#00000000"
132 |         android:pathData="M19,69L89,69"
133 |         android:strokeWidth="0.8"
134 |         android:strokeColor="#33FFFFFF" />
135 |     <path
136 |         android:fillColor="#00000000"
137 |         android:pathData="M19,79L89,79"
138 |         android:strokeWidth="0.8"
139 |         android:strokeColor="#33FFFFFF" />
140 |     <path
141 |         android:fillColor="#00000000"
142 |         android:pathData="M29,19L29,89"
143 |         android:strokeWidth="0.8"
144 |         android:strokeColor="#33FFFFFF" />
145 |     <path
146 |         android:fillColor="#00000000"
147 |         android:pathData="M39,19L39,89"
148 |         android:strokeWidth="0.8"
149 |         android:strokeColor="#33FFFFFF" />
150 |     <path
151 |         android:fillColor="#00000000"
152 |         android:pathData="M49,19L49,89"
153 |         android:strokeWidth="0.8"
154 |         android:strokeColor="#33FFFFFF" />
155 |     <path
156 |         android:fillColor="#00000000"
157 |         android:pathData="M59,19L59,89"
158 |         android:strokeWidth="0.8"
159 |         android:strokeColor="#33FFFFFF" />
160 |     <path
161 |         android:fillColor="#00000000"
162 |         android:pathData="M69,19L69,89"
163 |         android:strokeWidth="0.8"
164 |         android:strokeColor="#33FFFFFF" />
165 |     <path
166 |         android:fillColor="#00000000"
167 |         android:pathData="M79,19L79,89"
168 |         android:strokeWidth="0.8"
169 |         android:strokeColor="#33FFFFFF" />
170 | </vector>
171 | 


--------------------------------------------------------------------------------