├── .idea
    ├── .name
    ├── copyright
    │   └── profiles_settings.xml
    ├── encodings.xml
    ├── vcs.xml
    ├── modules.xml
    ├── runConfigurations.xml
    ├── gradle.xml
    ├── compiler.xml
    └── misc.xml
├── app
    ├── .gitignore
    ├── libs
    │   ├── volley_lib.jar
    │   ├── fastjson-1.1.43.jar
    │   └── universal-image-loader-1.9.3.jar
    ├── src
    │   ├── main
    │   │   ├── res
    │   │   │   ├── drawable
    │   │   │   │   ├── messi.png
    │   │   │   │   ├── last_page_nor.png
    │   │   │   │   ├── next_page_nor.png
    │   │   │   │   ├── last_page_pressed.png
    │   │   │   │   ├── next_page_pressed.png
    │   │   │   │   ├── board_list_content_bg.9.png
    │   │   │   │   ├── image_default.xml
    │   │   │   │   ├── next_page_selector.xml
    │   │   │   │   └── last_page_selector.xml
    │   │   │   ├── mipmap-hdpi
    │   │   │   │   └── ic_launcher.png
    │   │   │   ├── mipmap-mdpi
    │   │   │   │   └── ic_launcher.png
    │   │   │   ├── mipmap-xhdpi
    │   │   │   │   └── ic_launcher.png
    │   │   │   ├── mipmap-xxhdpi
    │   │   │   │   └── ic_launcher.png
    │   │   │   ├── mipmap-xxxhdpi
    │   │   │   │   └── ic_launcher.png
    │   │   │   ├── values
    │   │   │   │   ├── strings.xml
    │   │   │   │   ├── styles.xml
    │   │   │   │   └── dimens.xml
    │   │   │   ├── values-w820dp
    │   │   │   │   └── dimens.xml
    │   │   │   ├── menu
    │   │   │   │   └── menu_main.xml
    │   │   │   └── layout
    │   │   │   │   ├── test.xml
    │   │   │   │   ├── activity_main.xml
    │   │   │   │   ├── activity_hotel_list.xml
    │   │   │   │   ├── list_footer_layout.xml
    │   │   │   │   └── hotel_list_item_layout.xml
    │   │   ├── java
    │   │   │   └── com
    │   │   │   │   └── itheima
    │   │   │   │       └── datastorage
    │   │   │   │           ├── util
    │   │   │   │               ├── LogUtil.java
    │   │   │   │               ├── ToastUtil.java
    │   │   │   │               └── HotelSQLiteOpenHelper.java
    │   │   │   │           ├── MainActivity.java
    │   │   │   │           ├── model
    │   │   │   │               └── Hotel.java
    │   │   │   │           ├── ui
    │   │   │   │               └── BaseViewHolder.java
    │   │   │   │           ├── MainApplication.java
    │   │   │   │           ├── hotel
    │   │   │   │               ├── HotelListAdapter.java
    │   │   │   │               └── HotelListActivity.java
    │   │   │   │           └── net
    │   │   │   │               └── DataCenter.java
    │   │   └── AndroidManifest.xml
    │   ├── test
    │   │   └── java
    │   │   │   └── com
    │   │   │       └── itheima
    │   │   │           └── datastorage
    │   │   │               └── ExampleUnitTest.java
    │   └── androidTest
    │   │   └── java
    │   │       └── com
    │   │           └── itheima
    │   │               └── datastorage
    │   │                   ├── ApplicationTest.java
    │   │                   └── LrucacheTest.java
    ├── proguard-rules.pro
    └── build.gradle
├── settings.gradle
├── screenshot.gif
├── screenshot_1.png
├── gradle
    └── wrapper
    │   ├── gradle-wrapper.jar
    │   └── gradle-wrapper.properties
├── .gitignore
├── README.md
├── gradle.properties
├── gradlew.bat
└── gradlew


/.idea/.name:
--------------------------------------------------------------------------------
1 | DataStorage


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


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


--------------------------------------------------------------------------------
/screenshot.gif:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/jiyouliang/DataStorage/HEAD/screenshot.gif


--------------------------------------------------------------------------------
/screenshot_1.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/jiyouliang/DataStorage/HEAD/screenshot_1.png


--------------------------------------------------------------------------------
/app/libs/volley_lib.jar:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/jiyouliang/DataStorage/HEAD/app/libs/volley_lib.jar


--------------------------------------------------------------------------------
/app/libs/fastjson-1.1.43.jar:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/jiyouliang/DataStorage/HEAD/app/libs/fastjson-1.1.43.jar


--------------------------------------------------------------------------------
/.idea/copyright/profiles_settings.xml:
--------------------------------------------------------------------------------
1 | <component name="CopyrightManager">
2 |   <settings default="" />
3 | </component>


--------------------------------------------------------------------------------
/app/src/main/res/drawable/messi.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/jiyouliang/DataStorage/HEAD/app/src/main/res/drawable/messi.png


--------------------------------------------------------------------------------
/gradle/wrapper/gradle-wrapper.jar:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/jiyouliang/DataStorage/HEAD/gradle/wrapper/gradle-wrapper.jar


--------------------------------------------------------------------------------
/.gitignore:
--------------------------------------------------------------------------------
1 | *.iml
2 | .gradle
3 | /local.properties
4 | /.idea/workspace.xml
5 | /.idea/libraries
6 | .DS_Store
7 | /build
8 | /captures
9 | 


--------------------------------------------------------------------------------
/app/libs/universal-image-loader-1.9.3.jar:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/jiyouliang/DataStorage/HEAD/app/libs/universal-image-loader-1.9.3.jar


--------------------------------------------------------------------------------
/app/src/main/res/drawable/last_page_nor.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/jiyouliang/DataStorage/HEAD/app/src/main/res/drawable/last_page_nor.png


--------------------------------------------------------------------------------
/app/src/main/res/drawable/next_page_nor.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/jiyouliang/DataStorage/HEAD/app/src/main/res/drawable/next_page_nor.png


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


--------------------------------------------------------------------------------
/app/src/main/res/mipmap-mdpi/ic_launcher.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/jiyouliang/DataStorage/HEAD/app/src/main/res/mipmap-mdpi/ic_launcher.png


--------------------------------------------------------------------------------
/app/src/main/res/mipmap-xhdpi/ic_launcher.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/jiyouliang/DataStorage/HEAD/app/src/main/res/mipmap-xhdpi/ic_launcher.png


--------------------------------------------------------------------------------
/app/src/main/res/drawable/last_page_pressed.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/jiyouliang/DataStorage/HEAD/app/src/main/res/drawable/last_page_pressed.png


--------------------------------------------------------------------------------
/app/src/main/res/drawable/next_page_pressed.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/jiyouliang/DataStorage/HEAD/app/src/main/res/drawable/next_page_pressed.png


--------------------------------------------------------------------------------
/app/src/main/res/mipmap-xxhdpi/ic_launcher.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/jiyouliang/DataStorage/HEAD/app/src/main/res/mipmap-xxhdpi/ic_launcher.png


--------------------------------------------------------------------------------
/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/jiyouliang/DataStorage/HEAD/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png


--------------------------------------------------------------------------------
/app/src/main/res/drawable/board_list_content_bg.9.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/jiyouliang/DataStorage/HEAD/app/src/main/res/drawable/board_list_content_bg.9.png


--------------------------------------------------------------------------------
/.idea/encodings.xml:
--------------------------------------------------------------------------------
1 | <?xml version="1.0" encoding="UTF-8"?>
2 | <project version="4">
3 |   <component name="Encoding">
4 |     <file url="PROJECT" charset="UTF-8" />
5 |   </component>
6 | </project>


--------------------------------------------------------------------------------
/.idea/vcs.xml:
--------------------------------------------------------------------------------
1 | <?xml version="1.0" encoding="UTF-8"?>
2 | <project version="4">
3 |   <component name="VcsDirectoryMappings">
4 |     <mapping directory="" vcs="" />
5 |   </component>
6 | </project>


--------------------------------------------------------------------------------
/app/src/main/res/values/strings.xml:
--------------------------------------------------------------------------------
1 | <resources>
2 |     <string name="app_name">DataStorage</string>
3 |     <string name="action_settings">Settings</string>
4 |     <string name="title_activity_hotel_list">HotelListActivity</string>
5 | </resources>
6 | 


--------------------------------------------------------------------------------
/app/src/main/res/values/styles.xml:
--------------------------------------------------------------------------------
1 | <resources>
2 | 
3 |     <!-- Base application theme. -->
4 |     <style name="AppTheme" parent="android:Theme.Light.NoTitleBar">
5 |         <!-- Customize your theme here. -->
6 |     </style>
7 | 
8 | </resources>
9 | 


--------------------------------------------------------------------------------
/app/src/main/res/drawable/image_default.xml:
--------------------------------------------------------------------------------
1 | <?xml version="1.0" encoding="utf-8"?>
2 | <shape xmlns:android="http://schemas.android.com/apk/res/android" >
3 |     <solid android:color="#f0f0f0"/>
4 |     
5 |     <corners android:radius="3dp"/>
6 | 
7 | </shape>
8 | 


--------------------------------------------------------------------------------
/app/src/main/res/values/dimens.xml:
--------------------------------------------------------------------------------
1 | <resources>
2 |     <!-- Default screen margins, per the Android Design guidelines. -->
3 |     <dimen name="activity_horizontal_margin">16dp</dimen>
4 |     <dimen name="activity_vertical_margin">16dp</dimen>
5 | </resources>
6 | 


--------------------------------------------------------------------------------
/gradle/wrapper/gradle-wrapper.properties:
--------------------------------------------------------------------------------
1 | #Wed Oct 21 11:34:03 PDT 2015
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-2.8-all.zip
7 | 


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


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


--------------------------------------------------------------------------------
/app/src/main/java/com/itheima/datastorage/util/LogUtil.java:
--------------------------------------------------------------------------------
 1 | package com.itheima.datastorage.util;
 2 | 
 3 | import android.util.Log;
 4 | 
 5 | /**
 6 |  * Created by youliang.ji on 2016/5/3.
 7 |  */
 8 | public class LogUtil {
 9 | 
10 |     private static final  String TAG = "result";
11 | 
12 |     public static void d(String msg){
13 |         Log.d(TAG, msg);
14 |     }
15 | }
16 | 


--------------------------------------------------------------------------------
/.idea/modules.xml:
--------------------------------------------------------------------------------
1 | <?xml version="1.0" encoding="UTF-8"?>
2 | <project version="4">
3 |   <component name="ProjectModuleManager">
4 |     <modules>
5 |       <module fileurl="file://$PROJECT_DIR$/DataStorage.iml" filepath="$PROJECT_DIR$/DataStorage.iml" />
6 |       <module fileurl="file://$PROJECT_DIR$/app/app.iml" filepath="$PROJECT_DIR$/app/app.iml" />
7 |     </modules>
8 |   </component>
9 | </project>


--------------------------------------------------------------------------------
/app/src/main/res/values-w820dp/dimens.xml:
--------------------------------------------------------------------------------
1 | <resources>
2 |     <!-- Example customization of dimensions originally defined in res/values/dimens.xml
3 |          (such as screen margins) for screens with more than 820dp of available width. This
4 |          would include 7" and 10" devices in landscape (~960dp and ~1280dp respectively). -->
5 |     <dimen name="activity_horizontal_margin">64dp</dimen>
6 | </resources>
7 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/itheima/datastorage/util/ToastUtil.java:
--------------------------------------------------------------------------------
 1 | package com.itheima.datastorage.util;
 2 | 
 3 | import android.content.Context;
 4 | import android.widget.Toast;
 5 | 
 6 | /**
 7 |  * Created by youliang.ji on 2016/5/4.
 8 |  */
 9 | public class ToastUtil {
10 | 
11 |     public static void showToast(Context context, String msg){
12 |         Toast.makeText(context, msg, Toast.LENGTH_SHORT).show();
13 |     }
14 | }
15 | 


--------------------------------------------------------------------------------
/app/src/test/java/com/itheima/datastorage/ExampleUnitTest.java:
--------------------------------------------------------------------------------
 1 | package com.itheima.datastorage;
 2 | 
 3 | import org.junit.Test;
 4 | 
 5 | import static org.junit.Assert.*;
 6 | 
 7 | /**
 8 |  * To work on unit tests, switch the Test Artifact in the Build Variants view.
 9 |  */
10 | public class ExampleUnitTest {
11 |     @Test
12 |     public void addition_isCorrect() throws Exception {
13 |         assertEquals(4, 2 + 2);
14 |     }
15 | }


--------------------------------------------------------------------------------
/app/src/androidTest/java/com/itheima/datastorage/ApplicationTest.java:
--------------------------------------------------------------------------------
 1 | package com.itheima.datastorage;
 2 | 
 3 | import android.app.Application;
 4 | import android.test.ApplicationTestCase;
 5 | 
 6 | /**
 7 |  * <a href="http://d.android.com/tools/testing/testing_android.html">Testing Fundamentals</a>
 8 |  */
 9 | public class ApplicationTest extends ApplicationTestCase<Application> {
10 |     public ApplicationTest() {
11 |         super(Application.class);
12 |     }
13 | }


--------------------------------------------------------------------------------
/app/src/main/res/menu/menu_main.xml:
--------------------------------------------------------------------------------
 1 | <menu xmlns:android="http://schemas.android.com/apk/res/android"
 2 |     xmlns:app="http://schemas.android.com/apk/res-auto"
 3 |     xmlns:tools="http://schemas.android.com/tools"
 4 |     tools:context="com.itheima.datastorage.MainActivity">
 5 |     <item
 6 |         android:id="@+id/action_settings"
 7 |         android:orderInCategory="100"
 8 |         android:title="@string/action_settings"
 9 |         app:showAsAction="never" />
10 | </menu>
11 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | ## 三级存储：如何将网络json存储到内存，缓存到数据库（文件也是一样的道理）
 2 | 
 3 | ### 1.JSON三级存储
 4 | 
 5 | 你听过图片三级存储，但肯定没听过如何处理json三级存储
 6 | 
 7 | ### 2.截图
 8 | 
 9 | ![](screenshot.gif)
10 | 
11 | ### 3.使用技术
12 | 
13 | * 1.Lrucache处理内存存储
14 | * 2.Volley请求网络
15 | * 3.UniversalImageLoader加载图片
16 | * 4.Sqllite存储缓存处理
17 | 
18 | ### 4.Usage
19 | 
20 | 结合服务器使用
21 | 
22 | * 1.服务器：[https://github.com/jiyouliang/VolleyTest](https://github.com/jiyouliang/VolleyTest "VolleyTest")部署到MyEclipse
23 | * 2.客户端：DataStorage
24 | 	* DataCenter类中改成你的ip，如下图
25 | 
26 | ![](screenshot_1.png)
27 | 
28 | 
29 | 
30 | 


--------------------------------------------------------------------------------
/.idea/runConfigurations.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <project version="4">
 3 |   <component name="RunConfigurationProducerService">
 4 |     <option name="ignoredProducers">
 5 |       <set>
 6 |         <option value="org.jetbrains.plugins.gradle.execution.test.runner.AllInPackageGradleConfigurationProducer" />
 7 |         <option value="org.jetbrains.plugins.gradle.execution.test.runner.TestClassGradleConfigurationProducer" />
 8 |         <option value="org.jetbrains.plugins.gradle.execution.test.runner.TestMethodGradleConfigurationProducer" />
 9 |       </set>
10 |     </option>
11 |   </component>
12 | </project>


--------------------------------------------------------------------------------
/app/src/main/res/layout/test.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3 |     android:layout_width="match_parent"
 4 |     android:layout_height="match_parent"
 5 |     android:orientation="vertical">
 6 | 
 7 |     <ImageView
 8 |         android:layout_width="240dp"
 9 |         android:layout_height="240dp"
10 |         android:background="@drawable/messi" />
11 | 
12 |     <ImageView
13 |         android:layout_width="match_parent"
14 |         android:layout_height="match_parent"
15 |         android:background="#dd000000" />
16 | 
17 | </RelativeLayout>


--------------------------------------------------------------------------------
/app/src/main/res/layout/activity_main.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3 |     xmlns:tools="http://schemas.android.com/tools"
 4 |     android:layout_width="match_parent"
 5 |     android:layout_height="match_parent"
 6 |     tools:context="com.itheima.datastorage.MainActivity">
 7 | 
 8 |     <Button
 9 |         android:onClick="hotelList"
10 |         android:layout_centerInParent="true"
11 |         android:layout_width="match_parent"
12 |         android:layout_height="wrap_content"
13 |         android:text="进入酒店列表页" />
14 | </RelativeLayout>
15 | 


--------------------------------------------------------------------------------
/.idea/gradle.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <project version="4">
 3 |   <component name="GradleSettings">
 4 |     <option name="linkedExternalProjectsSettings">
 5 |       <GradleProjectSettings>
 6 |         <option name="distributionType" value="DEFAULT_WRAPPED" />
 7 |         <option name="externalProjectPath" value="$PROJECT_DIR$" />
 8 |         <option name="gradleJvm" value="1.7" />
 9 |         <option name="modules">
10 |           <set>
11 |             <option value="$PROJECT_DIR$" />
12 |             <option value="$PROJECT_DIR$/app" />
13 |           </set>
14 |         </option>
15 |       </GradleProjectSettings>
16 |     </option>
17 |   </component>
18 | </project>


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


--------------------------------------------------------------------------------
/app/src/main/java/com/itheima/datastorage/MainActivity.java:
--------------------------------------------------------------------------------
 1 | package com.itheima.datastorage;
 2 | 
 3 | import android.app.Activity;
 4 | import android.content.Intent;
 5 | import android.os.Bundle;
 6 | import android.view.View;
 7 | 
 8 | import com.itheima.datastorage.hotel.HotelListActivity;
 9 | 
10 | public class MainActivity extends Activity {
11 | 
12 |     @Override
13 |     protected void onCreate(Bundle savedInstanceState) {
14 |         super.onCreate(savedInstanceState);
15 |         setContentView(R.layout.activity_main);
16 |     }
17 | 
18 |     /**
19 |      * 进入酒店列表页
20 |      * @param v
21 |      */
22 |     public void hotelList(View v){
23 |         Intent intent = new Intent(this, HotelListActivity.class);
24 |         startActivity(intent);
25 |     }
26 | 
27 | }
28 | 


--------------------------------------------------------------------------------
/.idea/compiler.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <project version="4">
 3 |   <component name="CompilerConfiguration">
 4 |     <resourceExtensions />
 5 |     <wildcardResourcePatterns>
 6 |       <entry name="!?*.java" />
 7 |       <entry name="!?*.form" />
 8 |       <entry name="!?*.class" />
 9 |       <entry name="!?*.groovy" />
10 |       <entry name="!?*.scala" />
11 |       <entry name="!?*.flex" />
12 |       <entry name="!?*.kt" />
13 |       <entry name="!?*.clj" />
14 |       <entry name="!?*.aj" />
15 |     </wildcardResourcePatterns>
16 |     <annotationProcessing>
17 |       <profile default="true" name="Default" enabled="false">
18 |         <processorPath useClasspath="true" />
19 |       </profile>
20 |     </annotationProcessing>
21 |   </component>
22 | </project>


--------------------------------------------------------------------------------
/app/src/main/res/layout/activity_hotel_list.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3 |     android:layout_width="match_parent"
 4 |     android:layout_height="match_parent"
 5 |     android:background="#ffffff">
 6 | 
 7 |     <ListView
 8 |         android:id="@+id/listView"
 9 |         android:layout_width="match_parent"
10 |         android:layout_height="match_parent" />
11 | 
12 |     <ProgressBar
13 |         android:id="@+id/progressBar"
14 |         style="?android:attr/progressBarStyleSmall"
15 |         android:layout_width="38dp"
16 |         android:layout_height="38dp"
17 |         android:layout_centerHorizontal="true"
18 |         android:layout_centerVertical="true"
19 |         android:indeterminate="false" />
20 | 
21 | 
22 | </RelativeLayout>
23 | 
24 | 


--------------------------------------------------------------------------------
/app/build.gradle:
--------------------------------------------------------------------------------
 1 | apply plugin: 'com.android.application'
 2 | 
 3 | android {
 4 |     compileSdkVersion 19
 5 |     buildToolsVersion "23.0.3"
 6 | 
 7 |     defaultConfig {
 8 |         applicationId "com.itheima.datastorage"
 9 |         minSdkVersion 8
10 |         targetSdkVersion 19
11 |         versionCode 1
12 |         versionName "1.0"
13 |     }
14 |     buildTypes {
15 |         release {
16 |             minifyEnabled false
17 |             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
18 |         }
19 |     }
20 | }
21 | 
22 | dependencies {
23 |     compile fileTree(dir: 'libs', include: ['*.jar'])
24 |     compile 'com.android.support:appcompat-v7:19.1.0'
25 |     compile files('libs/fastjson-1.1.43.jar')
26 |     compile files('libs/volley_lib.jar')
27 |     compile files('libs/universal-image-loader-1.9.3.jar')
28 | }
29 | 


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


--------------------------------------------------------------------------------
/app/src/main/java/com/itheima/datastorage/util/HotelSQLiteOpenHelper.java:
--------------------------------------------------------------------------------
 1 | package com.itheima.datastorage.util;
 2 | 
 3 | import android.content.Context;
 4 | import android.database.sqlite.SQLiteDatabase;
 5 | import android.database.sqlite.SQLiteOpenHelper;
 6 | 
 7 | /**
 8 |  * Created by youliang.ji on 2016/5/23.
 9 |  */
10 | public class HotelSQLiteOpenHelper extends SQLiteOpenHelper {
11 |     public final static String HOTEL_TABLE = "hotel_list";
12 | 
13 |     public HotelSQLiteOpenHelper(Context context) {
14 |         super(context, "heima.db", null, 1);
15 |     }
16 | 
17 |     @Override
18 |     public void onCreate(SQLiteDatabase db) {
19 |         db.execSQL("CREATE TABLE "+HOTEL_TABLE+"(id INTEGER PRIMARY KEY AUTOINCREMENT,pagenum INTEGER,data VARCHAR(20),time VARCHAR(20))");
20 |     }
21 | 
22 |     @Override
23 |     public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
24 | 
25 |     }
26 | 
27 |     /**
28 |      * 删除Least recently unused数据
29 |      */
30 |     public void deleteLruData(){
31 | 
32 |     }
33 | 
34 | 
35 | }
36 | 


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


--------------------------------------------------------------------------------
/app/src/main/java/com/itheima/datastorage/model/Hotel.java:
--------------------------------------------------------------------------------
 1 | package com.itheima.datastorage.model;
 2 | 
 3 | import java.io.Serializable;
 4 | 
 5 | /**酒店对象
 6 |  * Created by youliang.ji on 2016/5/1.
 7 |  */
 8 | public class Hotel implements Serializable {
 9 | 
10 |     private String price;//价格：价格为什么是字符串，很多公司所有返回json数据都是字符串，为了统一，当然如果你们公司返回double也没问题
11 |     private String name;//酒店名称
12 |     private String img;//酒店图片url
13 | 
14 |     public String getPrice() {
15 |         return price;
16 |     }
17 | 
18 |     public void setPrice(String price) {
19 |         this.price = price;
20 |     }
21 | 
22 |     public String getName() {
23 |         return name;
24 |     }
25 | 
26 |     public void setName(String name) {
27 |         this.name = name;
28 |     }
29 | 
30 |     public String getImg() {
31 |         return img;
32 |     }
33 | 
34 |     public void setImg(String img) {
35 |         this.img = img;
36 |     }
37 | 
38 |     @Override
39 |     public String toString() {
40 |         return "Hotel{" +
41 |                 "price='" + price + '\'' +
42 |                 ", name='" + name + '\'' +
43 |                 ", img='" + img + '\'' +
44 |                 '}';
45 |     }
46 | }
47 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/itheima/datastorage/ui/BaseViewHolder.java:
--------------------------------------------------------------------------------
 1 | package com.itheima.datastorage.ui;
 2 | 
 3 | import android.content.Context;
 4 | import android.util.SparseArray;
 5 | import android.view.LayoutInflater;
 6 | import android.view.View;
 7 | import android.view.ViewGroup;
 8 | 
 9 | /**
10 |  * 通用ViewHolder，避免每个Adapter都需要写ViewHolder
11 |  *
12 |  * @author YouLiang.Ji
13 |  */
14 | public class BaseViewHolder {
15 | 
16 |     private SparseArray<View> mView;
17 |     private int mPosition;
18 |     private View mConvertView;
19 | 
20 |     public BaseViewHolder(Context context, ViewGroup parent, int layoutId, int position) {
21 |         mPosition = position;
22 |         mView = new SparseArray<View>();
23 |         mConvertView = LayoutInflater.from(context).inflate(layoutId, parent, false);
24 |         mConvertView.setTag(this);
25 |     }
26 | 
27 |     public static BaseViewHolder getViewHolder(Context context, View convertView, ViewGroup parent, int layoutId, int position) {
28 |         if (convertView == null) {
29 |             return new BaseViewHolder(context, parent, layoutId, position);
30 |         } else {
31 |             BaseViewHolder viewHolder = (BaseViewHolder) convertView.getTag();
32 |             viewHolder.mPosition = position;
33 |             return viewHolder;
34 |         }
35 |     }
36 | 
37 |     public View getConvertView() {
38 |         return mConvertView;
39 |     }
40 | 
41 |     /**
42 |      * 通过id获取控件
43 |      */
44 |     public <T extends View> T findViewById(int viewId) {
45 |         View view = mView.get(viewId);
46 |         if (view == null) {
47 |             view = mConvertView.findViewById(viewId);
48 |             mView.put(viewId, view);
49 |         }
50 |         return (T) view;
51 |     }
52 | }
53 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/itheima/datastorage/MainApplication.java:
--------------------------------------------------------------------------------
 1 | package com.itheima.datastorage;
 2 | 
 3 | import android.app.Application;
 4 | import android.content.Context;
 5 | 
 6 | import com.nostra13.universalimageloader.cache.disc.naming.Md5FileNameGenerator;
 7 | import com.nostra13.universalimageloader.core.ImageLoader;
 8 | import com.nostra13.universalimageloader.core.ImageLoaderConfiguration;
 9 | import com.nostra13.universalimageloader.core.assist.QueueProcessingType;
10 | 
11 | /**
12 |  * Created by youliang.ji on 2016/5/1.
13 |  */
14 | public class MainApplication extends Application {
15 | 
16 |     @Override
17 |     public void onCreate() {
18 |         super.onCreate();
19 |         initImageLoader(getApplicationContext());
20 |     }
21 | 
22 |     /**
23 |      * 初始化ImageLoader
24 |      * @param context
25 |      */
26 |     public static void initImageLoader(Context context) {
27 |         // This configuration tuning is custom. You can tune every option, you may tune some of them,
28 |         // or you can create default configuration by
29 |         //  ImageLoaderConfiguration.createDefault(this);
30 |         // method.
31 |         ImageLoaderConfiguration.Builder config = new ImageLoaderConfiguration.Builder(context);
32 |         config.threadPriority(Thread.NORM_PRIORITY - 2);
33 |         config.denyCacheImageMultipleSizesInMemory();
34 |         config.diskCacheFileNameGenerator(new Md5FileNameGenerator());
35 |         config.diskCacheSize(50 * 1024 * 1024); // 50 MiB
36 |         config.tasksProcessingOrder(QueueProcessingType.LIFO);
37 |         config.writeDebugLogs(); // Remove for release app
38 | 
39 |         // Initialize ImageLoader with configuration.
40 |         ImageLoader.getInstance().init(config.build());
41 |     }
42 | }
43 | 


--------------------------------------------------------------------------------
/app/src/main/res/layout/list_footer_layout.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3 |     android:layout_width="match_parent"
 4 |     android:background="#f0f0f0"
 5 |     android:paddingTop="4dp"
 6 |     android:paddingBottom="4dp"
 7 |     android:paddingLeft="2dp"
 8 |     android:paddingRight="2dp"
 9 |     android:layout_height="wrap_content" >
10 |     
11 |     
12 |      <RelativeLayout
13 |         android:id="@+id/rl_bottom"
14 |         android:layout_width="match_parent"
15 |         android:layout_centerVertical="true"
16 |         android:layout_height="46dp"
17 |         android:paddingLeft="14dp"
18 |         android:paddingRight="14dp"
19 |         android:background="@drawable/board_list_content_bg" >
20 | 
21 |         <ImageView
22 |             android:id="@+id/iv_last_page"
23 |             android:layout_width="wrap_content"
24 |             android:layout_height="wrap_content"
25 |             android:layout_centerVertical="true"
26 |             android:src="@drawable/last_page_selector" />
27 | 
28 |         <TextView
29 |             android:id="@+id/tv_cur_page"
30 |             android:layout_width="wrap_content"
31 |             android:textSize="18sp"
32 |             android:gravity="center"
33 |             android:layout_height="wrap_content"
34 |             android:layout_centerInParent="true"
35 |             android:text="第3页" />
36 | 
37 |         <ImageView
38 |             android:id="@+id/iv_next_page"
39 |             android:layout_width="wrap_content"
40 |             android:layout_height="wrap_content"
41 |             android:layout_alignParentRight="true"
42 |             android:layout_centerVertical="true"
43 |             android:src="@drawable/next_page_selector" />
44 |     </RelativeLayout>
45 | 
46 | </RelativeLayout>
47 | 


--------------------------------------------------------------------------------
/app/src/main/res/layout/hotel_list_item_layout.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3 |     android:layout_width="match_parent"
 4 |     android:layout_height="wrap_content"
 5 |     android:orientation="horizontal"
 6 |     android:padding="8dp" >
 7 | 
 8 |     <ImageView
 9 |         android:id="@+id/image"
10 |         android:layout_width="80dp"
11 |         android:layout_height="80dp"
12 |         android:layout_gravity="center_vertical"
13 |         android:background="@drawable/image_default"
14 |         android:scaleType="fitXY" />
15 | 
16 |     <LinearLayout
17 |         android:id="@+id/rl_right_container"
18 |         android:layout_width="fill_parent"
19 |         android:layout_height="match_parent"
20 |         android:layout_marginLeft="10dp"
21 |         android:orientation="vertical">
22 | 
23 |         <TextView
24 |             android:id="@+id/tv_name"
25 |             android:layout_width="fill_parent"
26 |             android:layout_height="0dp"
27 |             android:layout_weight="1"
28 |             android:gravity="center_vertical"
29 |             android:ellipsize="end"
30 |             android:singleLine="true"
31 |             android:text="标题标题标题标题标题标题标题标题标题标题标题标题标题标题标题标题标题标题标题标题"
32 |             android:textColor="#343434"
33 |             android:textSize="18sp" />
34 | 
35 |         <TextView
36 |             android:id="@+id/tv_price"
37 |             android:layout_width="fill_parent"
38 |             android:layout_height="0dp"
39 |             android:layout_weight="1"
40 |             android:gravity="center_vertical"
41 |             android:ellipsize="end"
42 |             android:maxLines="1"
43 |             android:text="北京市海淀区"
44 |             android:textColor="#E74C3C"
45 |             android:textSize="14sp" />
46 |     </LinearLayout>
47 | 
48 | </LinearLayout>


--------------------------------------------------------------------------------
/.idea/misc.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <project version="4">
 3 |   <component name="EntryPointsManager">
 4 |     <entry_points version="2.0" />
 5 |   </component>
 6 |   <component name="NullableNotNullManager">
 7 |     <option name="myDefaultNullable" value="android.support.annotation.Nullable" />
 8 |     <option name="myDefaultNotNull" value="android.support.annotation.NonNull" />
 9 |     <option name="myNullables">
10 |       <value>
11 |         <list size="4">
12 |           <item index="0" class="java.lang.String" itemvalue="org.jetbrains.annotations.Nullable" />
13 |           <item index="1" class="java.lang.String" itemvalue="javax.annotation.Nullable" />
14 |           <item index="2" class="java.lang.String" itemvalue="edu.umd.cs.findbugs.annotations.Nullable" />
15 |           <item index="3" class="java.lang.String" itemvalue="android.support.annotation.Nullable" />
16 |         </list>
17 |       </value>
18 |     </option>
19 |     <option name="myNotNulls">
20 |       <value>
21 |         <list size="4">
22 |           <item index="0" class="java.lang.String" itemvalue="org.jetbrains.annotations.NotNull" />
23 |           <item index="1" class="java.lang.String" itemvalue="javax.annotation.Nonnull" />
24 |           <item index="2" class="java.lang.String" itemvalue="edu.umd.cs.findbugs.annotations.NonNull" />
25 |           <item index="3" class="java.lang.String" itemvalue="android.support.annotation.NonNull" />
26 |         </list>
27 |       </value>
28 |     </option>
29 |   </component>
30 |   <component name="ProjectLevelVcsManager" settingsEditedManually="false">
31 |     <OptionsSetting value="true" id="Add" />
32 |     <OptionsSetting value="true" id="Remove" />
33 |     <OptionsSetting value="true" id="Checkout" />
34 |     <OptionsSetting value="true" id="Update" />
35 |     <OptionsSetting value="true" id="Status" />
36 |     <OptionsSetting value="true" id="Edit" />
37 |     <ConfirmationsSetting value="0" id="Add" />
38 |     <ConfirmationsSetting value="0" id="Remove" />
39 |   </component>
40 |   <component name="ProjectRootManager" version="2" languageLevel="JDK_1_6" default="true" assert-keyword="true" jdk-15="true" project-jdk-name="1.7" project-jdk-type="JavaSDK">
41 |     <output url="file://$PROJECT_DIR$/build/classes" />
42 |   </component>
43 |   <component name="ProjectType">
44 |     <option name="id" value="Android" />
45 |   </component>
46 | </project>


--------------------------------------------------------------------------------
/app/src/main/java/com/itheima/datastorage/hotel/HotelListAdapter.java:
--------------------------------------------------------------------------------
 1 | package com.itheima.datastorage.hotel;
 2 | 
 3 | import android.content.Context;
 4 | import android.graphics.Color;
 5 | import android.util.Log;
 6 | import android.view.View;
 7 | import android.view.ViewGroup;
 8 | import android.widget.ArrayAdapter;
 9 | import android.widget.ImageView;
10 | import android.widget.TextView;
11 | 
12 | import com.itheima.datastorage.R;
13 | import com.itheima.datastorage.model.Hotel;
14 | import com.itheima.datastorage.ui.BaseViewHolder;
15 | import com.nostra13.universalimageloader.core.DisplayImageOptions;
16 | import com.nostra13.universalimageloader.core.ImageLoader;
17 | import com.nostra13.universalimageloader.core.display.FadeInBitmapDisplayer;
18 | import com.nostra13.universalimageloader.core.display.SimpleBitmapDisplayer;
19 | 
20 | import java.util.List;
21 | 
22 | /**酒店列表适配器
23 |  * Created by youliang.ji on 2016/5/1.
24 |  */
25 | public class HotelListAdapter extends ArrayAdapter<Hotel>{
26 | 
27 |     private DisplayImageOptions options;
28 | 
29 |     public HotelListAdapter(Context context,  List<Hotel> data) {
30 |         super(context, 0, data);
31 | 
32 |         setImageLoaderOptions();
33 |     }
34 | 
35 |     private void setImageLoaderOptions() {
36 |         options = new DisplayImageOptions.Builder()
37 |                 .showImageOnLoading(R.drawable.image_default)
38 |                 .showImageForEmptyUri(R.drawable.image_default)
39 |                 .showImageOnFail(R.drawable.image_default)
40 |                 .cacheInMemory(true)
41 |                 .cacheOnDisk(true)
42 |                 .considerExifParams(true)
43 |                 .displayer(new SimpleBitmapDisplayer())//default
44 |                 .build();
45 |     }
46 | 
47 |     @Override
48 |     public View getView(int position, View convertView, ViewGroup parent) {
49 |         BaseViewHolder holder = BaseViewHolder.getViewHolder(getContext(), convertView, parent, R.layout.hotel_list_item_layout, position);
50 | 
51 |         Hotel hotel = getItem(position);
52 |         ImageView mImageView = holder.findViewById(R.id.image);
53 |         TextView mTvName = holder.findViewById(R.id.tv_name);
54 |         TextView mTvPrice = holder.findViewById(R.id.tv_price);
55 |         ImageLoader.getInstance().displayImage(hotel.getImg(), mImageView);
56 |         mTvName.setText(hotel.getName());
57 |         mTvPrice.setText("价格："+hotel.getPrice());
58 | 
59 |         return holder.getConvertView();
60 |     }
61 | }
62 | 


--------------------------------------------------------------------------------
/app/src/androidTest/java/com/itheima/datastorage/LrucacheTest.java:
--------------------------------------------------------------------------------
 1 | package com.itheima.datastorage;
 2 | 
 3 | 
 4 | import android.database.Cursor;
 5 | import android.database.sqlite.SQLiteDatabase;
 6 | import android.support.v4.util.LruCache;
 7 | 
 8 | import com.itheima.datastorage.util.HotelSQLiteOpenHelper;
 9 | import com.itheima.datastorage.util.LogUtil;
10 | 
11 | import java.util.Map;
12 | 
13 | /**
14 |  * Created by youliang.ji on 2016/5/24.
15 |  */
16 | public class LrucacheTest extends ApplicationTest {
17 | 
18 |     private LruCache<String, String> lruCache;
19 | 
20 |     public void test(){
21 |         if(lruCache == null){
22 |             lruCache = new LruCache<String, String>(9){
23 |                 @Override
24 |                 protected int sizeOf(String key, String value) {
25 |                     return value.getBytes().length;
26 |                 }
27 |             };
28 |         }
29 | 
30 |         lruCache.put("1", "AAA");
31 |         lruCache.put("2", "BBB");
32 |         print();
33 |         lruCache.put("3", "CCC");
34 |         print();
35 |         lruCache.put("4", "DDD");
36 |         print();
37 |         String value = lruCache.get("2");
38 |         LogUtil.d("key=2,value="+value);
39 |         print();
40 |         String value4 = lruCache.get("4");
41 |         LogUtil.d("key=4,value=" + value4);
42 |         print();
43 |         lruCache.put("5","EEE");
44 |         print();
45 | 
46 | 
47 |     }
48 | 
49 |     private void print(){
50 |         LogUtil.d("==========打印开始==========");
51 |         for(Map.Entry<String, String> entry : lruCache.snapshot().entrySet()){
52 |             LogUtil.d("key="+entry.getKey()+",value="+entry.getValue());
53 |         }
54 |         LogUtil.d("==========打印结束==========");
55 |     }
56 | 
57 |     public void test2(){
58 |         String value1 = "1464054613534";
59 |         String value2 = "1464054629950";
60 | 
61 | 
62 |     }
63 | 
64 |     /**
65 |      *测试数据库排序
66 |      */
67 |     public void test4(){
68 |         HotelSQLiteOpenHelper sqLiteOpenHelper = new HotelSQLiteOpenHelper(getContext());
69 |         SQLiteDatabase db = sqLiteOpenHelper.getWritableDatabase();
70 |         if(db != null){
71 |             Cursor cursor = db.query(HotelSQLiteOpenHelper.HOTEL_TABLE, new String[]{"pagenum"}, null, null, null, null, "time ASC");
72 |             if(cursor != null){
73 |                 if (cursor.moveToFirst()){
74 |                     int pagenum = cursor.getInt(0);
75 |                     LogUtil.d("pagenum="+pagenum);
76 |                 }
77 |                 cursor.close();
78 |             }
79 |             db.close();
80 |         }
81 | 
82 |     }
83 | }
84 | 


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


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


--------------------------------------------------------------------------------
/app/src/main/java/com/itheima/datastorage/hotel/HotelListActivity.java:
--------------------------------------------------------------------------------
  1 | package com.itheima.datastorage.hotel;
  2 | 
  3 | import android.app.Activity;
  4 | import android.app.AlertDialog;
  5 | import android.content.DialogInterface;
  6 | import android.os.Bundle;
  7 | import android.view.View;
  8 | import android.widget.ImageView;
  9 | import android.widget.ListView;
 10 | import android.widget.ProgressBar;
 11 | import android.widget.TextView;
 12 | import android.widget.Toast;
 13 | 
 14 | import com.alibaba.fastjson.JSON;
 15 | import com.android.volley.RequestQueue;
 16 | import com.android.volley.Response;
 17 | import com.android.volley.VolleyError;
 18 | import com.android.volley.toolbox.Volley;
 19 | import com.itheima.datastorage.R;
 20 | import com.itheima.datastorage.model.Hotel;
 21 | import com.itheima.datastorage.net.DataCenter;
 22 | import com.itheima.datastorage.util.LogUtil;
 23 | 
 24 | import java.util.ArrayList;
 25 | import java.util.List;
 26 | 
 27 | public class HotelListActivity extends Activity implements View.OnClickListener, Response.Listener<String>, Response.ErrorListener {
 28 | 
 29 |     private ListView mListView;
 30 |     private List<Hotel> hotelList;
 31 |     private HotelListAdapter mAdapter;
 32 |     private int pagenum = 1;//当前页码
 33 |     private String reqFlag = this.getClass().getName();//标记volley请求，当页面finish时，通过标取消请求（volley和activity什么周期绑定）
 34 |     private RequestQueue queue;
 35 |     private View listFooterView;
 36 |     private ImageView mImageLastPage;//上一页
 37 |     private ImageView mImageNextPage;//下一页
 38 |     private TextView mTvCurPage;//当前页码
 39 |     private ProgressBar mProgressBar;
 40 |     private final static int PAGE_SIZE = 10;//每页10条数据
 41 |     private AlertDialog dialog;
 42 | 
 43 | 
 44 |     @Override
 45 |     protected void onCreate(Bundle savedInstanceState) {
 46 |         super.onCreate(savedInstanceState);
 47 |         setContentView(R.layout.activity_hotel_list);
 48 | 
 49 |         initView();
 50 |         initData();
 51 |         setListener();
 52 |     }
 53 | 
 54 |     private void setListener() {
 55 |         mImageLastPage.setOnClickListener(this);
 56 |         mImageNextPage.setOnClickListener(this);
 57 |     }
 58 | 
 59 |     private void initData() {
 60 |         queue = Volley.newRequestQueue(this);
 61 |         DataCenter.getInstance(this).getHotelList(reqFlag, queue, pagenum, this, this);
 62 |     }
 63 | 
 64 |     private void initView() {
 65 |         mListView = (ListView) findViewById(R.id.listView);
 66 |         mProgressBar = (ProgressBar) findViewById(R.id.progressBar);
 67 |         listFooterView = View.inflate(this, R.layout.list_footer_layout, null);
 68 |         mTvCurPage = (TextView) listFooterView.findViewById(R.id.tv_cur_page);
 69 |         mImageLastPage = (ImageView) listFooterView.findViewById(R.id.iv_last_page);
 70 |         mImageNextPage = (ImageView) listFooterView.findViewById(R.id.iv_next_page);
 71 |         mTvCurPage.setText("第1页");
 72 | 
 73 |         hotelList = new ArrayList<Hotel>();
 74 |         mAdapter = new HotelListAdapter(this, hotelList);
 75 |         mListView.addFooterView(listFooterView);
 76 |         mListView.setAdapter(mAdapter);
 77 | 
 78 |     }
 79 | 
 80 |     @Override
 81 |     public void onClick(View v) {
 82 |         switch (v.getId()) {
 83 |             case R.id.iv_last_page://上一页
 84 |                 pagenum--;
 85 |                 showProgressBar();
 86 |                 DataCenter.getInstance(this).getHotelList(reqFlag, queue, pagenum, this, this);
 87 | 
 88 |                 break;
 89 |             case R.id.iv_next_page://下一页
 90 |                 showProgressBar();
 91 |                 pagenum++;
 92 |                 DataCenter.getInstance(this).getHotelList(reqFlag, queue, pagenum, this, this);
 93 |                 break;
 94 |         }
 95 |     }
 96 | 
 97 | 
 98 |     @Override
 99 |     public void onResponse(String result) {
100 |         LogUtil.d(result);
101 | 
102 |         List<Hotel> hotels = JSON.parseArray(result, Hotel.class);
103 |         if (hotels != null && hotels.size() > 0) {
104 |             hotelList.clear();
105 |             hotelList.addAll(hotels);
106 |             mAdapter.notifyDataSetChanged();
107 |             mTvCurPage.setText("第" + pagenum + "页");
108 |         }
109 |         hideProgressBar();
110 | 
111 |         if (pagenum == 1) {//第一页，不显示返回上一页按钮
112 |             mImageLastPage.setVisibility(View.INVISIBLE);
113 |         } else {
114 |             mImageLastPage.setVisibility(View.VISIBLE);
115 |         }
116 |         if (hotelList.size() < PAGE_SIZE) {
117 |             mImageNextPage.setVisibility(View.INVISIBLE);
118 |         } else {
119 |             mImageNextPage.setVisibility(View.VISIBLE);
120 |         }
121 |     }
122 | 
123 |     @Override
124 |     public void onErrorResponse(VolleyError error) {
125 |         hideProgressBar();
126 |         LogUtil.d(error.getMessage());
127 |         if (dialog == null) {
128 |             dialog = new AlertDialog.Builder(this)
129 |                     .setTitle("网络异常!")
130 |                     .setMessage("请检查MyEclipse服务器是否开启，或访问地址是否正确。若未下载服务器代码，请下载：https://github.com/jiyouliang/VolleyTest")
131 |                     .setPositiveButton("确定", new DialogInterface.OnClickListener() {
132 |                         @Override
133 |                         public void onClick(DialogInterface dialog, int which) {
134 |                             dialog.dismiss();
135 |                         }
136 |                     })
137 |                     .create();
138 |         }
139 |         dialog.show();
140 |     }
141 | 
142 |     private void showProgressBar() {
143 |         mProgressBar.setVisibility(View.VISIBLE);
144 |     }
145 | 
146 |     private void hideProgressBar() {
147 |         mProgressBar.setVisibility(View.GONE);
148 |     }
149 | 
150 |     @Override
151 |     public void finish() {
152 |         queue.cancelAll(reqFlag);//页面消失，取消发送
153 |         LogUtil.d("退出页面，Volley已经和Activity声明周期联动");
154 |         Toast.makeText(HotelListActivity.this, "退出酒店模块", Toast.LENGTH_SHORT).show();
155 |         if (dialog != null && dialog.isShowing()) dialog.dismiss();
156 |         DataCenter.getInstance(this).deleteAllData();
157 |         super.finish();
158 |     }
159 | }
160 | 


--------------------------------------------------------------------------------
/app/src/main/java/com/itheima/datastorage/net/DataCenter.java:
--------------------------------------------------------------------------------
  1 | package com.itheima.datastorage.net;
  2 | 
  3 | import android.content.ContentValues;
  4 | import android.content.Context;
  5 | import android.database.Cursor;
  6 | import android.database.sqlite.SQLiteDatabase;
  7 | import android.os.Handler;
  8 | import android.support.v4.util.LruCache;
  9 | import android.text.TextUtils;
 10 | import android.widget.Toast;
 11 | 
 12 | import com.android.volley.RequestQueue;
 13 | import com.android.volley.Response;
 14 | import com.android.volley.toolbox.StringRequest;
 15 | import com.itheima.datastorage.util.HotelSQLiteOpenHelper;
 16 | import com.itheima.datastorage.util.LogUtil;
 17 | 
 18 | import java.io.File;
 19 | import java.util.Map;
 20 | 
 21 | /**
 22 |  * 数据中心：获取数据，存储数据
 23 |  * Created by youliang.ji on 2016/5/23.
 24 |  */
 25 | public class DataCenter {
 26 | 
 27 |     private static DataCenter instance;
 28 |     private Context context;
 29 |     private final static String url = "http://192.168.0.104:8080/VolleyTest/HotelList";
 30 |     private MemoryLrucache memoryCache;
 31 |     private HotelSQLiteOpenHelper sqLiteOpenHelper;
 32 |     private String cacheData;
 33 |     private MyHandler handler;
 34 |     /**内存最大存储*/
 35 |     private final static int MAX_SIZE_MEMORY = 3 * 1024;//3KB，正式开发肯定没这么小，这里为了测试
 36 |     /**缓存最大存储*/
 37 |     private final static int MAX_SIZE_CACHE = 30 * 1024;//30KB，正式开发肯定没这么小，这里为了测试
 38 | 
 39 |     private DataCenter() {
 40 |     }
 41 | 
 42 |     public static DataCenter getInstance(Context context) {
 43 |         if (instance == null) {
 44 |             synchronized (DataCenter.class) {
 45 |                 instance = new DataCenter();
 46 |                 instance.context = context;
 47 |             }
 48 |         }
 49 |         return instance;
 50 |     }
 51 | 
 52 |     /**
 53 |      * 获取酒店列表数据
 54 |      *
 55 |      * @param reqFlag     请求标识
 56 |      * @param queue       请求队列
 57 |      * @param pagenum     页码
 58 |      * @param listener    成功回调
 59 |      * @param errListener 错误回调
 60 |      */
 61 |     public void getHotelList(final String reqFlag, RequestQueue queue, final int pagenum,
 62 |                              final Response.Listener<String> listener, Response.ErrorListener errListener) {
 63 |         if (exitInMemory(pagenum)) {
 64 |             listener.onResponse(getFromMemory(pagenum));
 65 |             return;
 66 |         } else if(exitInCache(pagenum)){
 67 |             showToast("从缓存中获取第"+pagenum+"页数据");
 68 |             LogUtil.d("缓冲中存在第页"+pagenum+"数据:"+cacheData);
 69 |             listener.onResponse(cacheData);
 70 |             return;
 71 |         }else {
 72 |             getFromInternet(reqFlag, queue, pagenum, listener, errListener);
 73 |         }
 74 |     }
 75 | 
 76 |     /**
 77 |      * 从网络获取数据
 78 |      *
 79 |      * @param reqFlag
 80 |      * @param queue
 81 |      * @param pagenum
 82 |      * @param listener
 83 |      * @param errListener
 84 |      */
 85 |     private void getFromInternet(String reqFlag, RequestQueue queue, final int pagenum, final Response.Listener<String> listener, Response.ErrorListener errListener) {
 86 |         StringRequest request = new StringRequest(url + "?pagenum=" + pagenum, new Response.Listener<String>() {
 87 |             @Override
 88 |             public void onResponse(String response) {
 89 |                 LogUtil.d("从网络获取第"+pagenum+"页数据");
 90 |                 showToast("从网络获取第" + pagenum+"页数据");
 91 |                 //存储到内存中
 92 |                 storeToMemory(pagenum, response);
 93 |                 storeToCache(pagenum, response);
 94 |                 listener.onResponse(response);
 95 |             }
 96 |         }, errListener);
 97 |         request.setTag(reqFlag);
 98 |         queue.add(request);//发起网络请求
 99 |     }
100 | 
101 |     /**
102 |      * 数据存储到内存中
103 |      *
104 |      * @param data
105 |      */
106 |     private void storeToMemory(int pagenum, String data) {
107 |         if (memoryCache == null) {
108 |             memoryCache = new MemoryLrucache();
109 |         }
110 |         LogUtil.d("将第" + pagenum + "页数据存储到内存");
111 |         memoryCache.put(pagenum + "", data);
112 |         printMemoryData();
113 |     }
114 | 
115 |     private String getFromMemory(int pagenum) {
116 |         String data = memoryCache.get(pagenum + "");
117 |         LogUtil.d("从内存获取第" + pagenum + "页数据:" + data);
118 |         showToast("从内存获取第" + pagenum + "页数据");
119 |         printMemoryData();
120 |         return data;
121 |     }
122 | 
123 |     private boolean exitInMemory(int pagenum) {
124 |         if (memoryCache == null) {
125 |             LogUtil.d("内存中不存在第" + pagenum + "页数据");
126 |             return false;
127 |         }
128 |         String data = memoryCache.get(pagenum + "");
129 |         boolean exit = !TextUtils.isEmpty(data);
130 |         if (exit) {
131 |             LogUtil.d("内存中存在第" + pagenum + "页数据");
132 |         } else {
133 |             LogUtil.d("内存中不存在第" + pagenum + "页数据");
134 |         }
135 |         return exit;
136 |     }
137 | 
138 |     class MemoryLrucache extends LruCache<String, String> {
139 | 
140 | 
141 |         public MemoryLrucache() {
142 |             super(MAX_SIZE_MEMORY);
143 |         }
144 | 
145 |         @Override
146 |         protected int sizeOf(String key, String value) {
147 |             return value.getBytes().length;
148 |         }
149 |     }
150 | 
151 |     /**
152 |      * 打印内存中的数据
153 |      */
154 |     private void printMemoryData() {
155 |         Map<String, String> snapshot = memoryCache.snapshot();
156 |         LogUtil.d("打印内存中的数据 start");
157 |         for (Map.Entry<String, String> entry : snapshot.entrySet()) {
158 |             LogUtil.d("key=" + entry.getKey() + ",value=" + entry.getValue());
159 |         }
160 |         LogUtil.d("打印内存中的数据 end");
161 |     }
162 | 
163 |     /**
164 |      * 存储到缓冲中
165 |      *
166 |      * @param pagenum
167 |      * @param data
168 |      */
169 |     private void storeToCache(int pagenum, String data) {
170 |         if (sqLiteOpenHelper == null) {
171 |             sqLiteOpenHelper = new HotelSQLiteOpenHelper(context);
172 |         }
173 | 
174 |         SQLiteDatabase db = sqLiteOpenHelper.getWritableDatabase();
175 |         ContentValues contentValues = new ContentValues();
176 |         contentValues.put("pagenum", pagenum);
177 |         contentValues.put("data", data);
178 |         contentValues.put("time", System.currentTimeMillis() + "");
179 |         db.insert(HotelSQLiteOpenHelper.HOTEL_TABLE, null, contentValues);
180 | 
181 |         LogUtil.d("将第" + pagenum + "页数据存储到缓存中");
182 |         db.close();
183 | 
184 |         while (!canCache()){//如果没有足够空间缓冲，先删除数据，指导空间足够
185 |             LogUtil.d("没有足够空间存储数据");
186 |             deleteLruCache();
187 |         }
188 |     }
189 | 
190 |     private boolean exitInCache(int pagenum) {
191 |         if (sqLiteOpenHelper == null) {
192 |             sqLiteOpenHelper = new HotelSQLiteOpenHelper(context);
193 |         }
194 |         SQLiteDatabase db = sqLiteOpenHelper.getReadableDatabase();
195 |         boolean exitInCache = false;
196 |         Cursor cursor = db.query(HotelSQLiteOpenHelper.HOTEL_TABLE, new String[]{"data"}, "pagenum=?", new String[]{pagenum + ""}, null, null, null);
197 |         if(cursor != null){
198 |             if(cursor.moveToFirst()){
199 |                 cacheData = cursor.getString(0);
200 |                 if(!TextUtils.isEmpty(cacheData)){
201 |                     exitInCache = true;
202 |                     storeToMemory(pagenum, cacheData);
203 |                 }
204 |             }
205 |             cursor.close();
206 |         }
207 |         db.close();
208 |         if(!exitInCache) {
209 |             LogUtil.d("缓冲中不存在第页"+pagenum+"数据");
210 |         }
211 |         return exitInCache;
212 |     }
213 | 
214 |     private void showToast(final String msg){
215 |         if(handler == null){
216 |             handler = new MyHandler();
217 |         }
218 |         handler.post(new Runnable() {
219 |             @Override
220 |             public void run() {
221 |                 Toast.makeText(context, msg, Toast.LENGTH_SHORT).show();
222 |             }
223 |         });
224 | 
225 |     }
226 | 
227 |     public void deleteAllData(){
228 | 
229 |         new Thread(){
230 |             @Override
231 |             public void run() {
232 |                 deleteMemoryCache();
233 |                 deleteCache();
234 |                 super.run();
235 |             }
236 |         }.start();
237 |     }
238 | 
239 |     /**
240 |      * 删除内存中数据
241 |      */
242 |     private void deleteMemoryCache(){
243 |         LogUtil.d("删除内存中的数据");
244 |         showToast("删除内存数据");
245 |         memoryCache = null;
246 |     }
247 | 
248 |     /**
249 |      * 删除最近最少使用的数据
250 |      */
251 |     private void deleteLruCache(){
252 |         int pagenum = getDeleteCacheIndex();
253 |         LogUtil.d("需要删除第"+pagenum+"页数据");
254 |         if(pagenum > 0){
255 |             SQLiteDatabase db = sqLiteOpenHelper.getWritableDatabase();
256 |             if(db != null){
257 |                 int index = db.delete(HotelSQLiteOpenHelper.HOTEL_TABLE, "pagenum=?", new String[]{pagenum + ""});
258 |                 LogUtil.d("删除，index="+index);
259 |                 db.close();
260 |             }
261 |         }
262 |     }
263 | 
264 |     /**
265 |      * 获取需要删除的页码
266 |      * @return
267 |      */
268 |     private int getDeleteCacheIndex(){
269 |         int pagenum = -1;
270 |         SQLiteDatabase db = sqLiteOpenHelper.getWritableDatabase();
271 |         if(db != null){
272 |             Cursor cursor = db.query(HotelSQLiteOpenHelper.HOTEL_TABLE, new String[]{"pagenum"}, null, null, null, null, "time ASC");
273 |             if(cursor != null){
274 |                 if (cursor.moveToFirst()){
275 |                    pagenum = cursor.getInt(0);
276 |                     LogUtil.d("需要删除页码pagenum="+pagenum);
277 |                 }
278 |                 cursor.close();
279 |             }
280 |             db.close();
281 |         }
282 |         return pagenum;
283 |     }
284 | 
285 | 
286 |     /**
287 |      * 是否还有空间存储到数据库
288 |      * @return
289 |      */
290 |     private boolean canCache(){
291 |         long size = getCacheSize();
292 |         return (size <= MAX_SIZE_CACHE);
293 |     }
294 | 
295 |     /**
296 |      * 获取缓存数据库大小
297 |      * @return
298 |      */
299 |     private long getCacheSize(){
300 |         SQLiteDatabase db = sqLiteOpenHelper.getReadableDatabase();
301 |         String path = db.getPath();
302 |         File file = null;
303 |         if(path != null){
304 |             file = new File(path);
305 |         }
306 |         db.close();
307 |         LogUtil.d("获取数据库文件大小："+file.length());
308 |         return file.length();//byte
309 |     }
310 | 
311 |     /**
312 |      * 删除缓冲数据
313 |      */
314 |     private void deleteCache(){
315 |         if (sqLiteOpenHelper == null) {
316 |             sqLiteOpenHelper = new HotelSQLiteOpenHelper(context);
317 |         }
318 |         SQLiteDatabase db = sqLiteOpenHelper.getWritableDatabase();
319 |         if(db != null){
320 |             int delete = db.delete(HotelSQLiteOpenHelper.HOTEL_TABLE, null, null);
321 |             LogUtil.d("删除缓冲中的数据："+delete);
322 |             db.close();
323 |         }
324 |         cacheData = null;
325 |         showToast("删除缓存数据");
326 |     }
327 | 
328 |     class MyHandler extends Handler{}
329 | }
330 | 


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