├── app
    ├── .gitignore
    ├── src
    │   ├── main
    │   │   ├── res
    │   │   │   ├── values
    │   │   │   │   ├── strings.xml
    │   │   │   │   ├── colors.xml
    │   │   │   │   └── styles.xml
    │   │   │   ├── 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
    │   │   │   ├── mipmap-anydpi-v26
    │   │   │   │   ├── ic_launcher.xml
    │   │   │   │   └── ic_launcher_round.xml
    │   │   │   ├── layout
    │   │   │   │   ├── cell.xml
    │   │   │   │   └── activity_main.xml
    │   │   │   ├── drawable-v24
    │   │   │   │   └── ic_launcher_foreground.xml
    │   │   │   └── drawable
    │   │   │   │   └── ic_launcher_background.xml
    │   │   ├── java
    │   │   │   └── com
    │   │   │   │   └── example
    │   │   │   │       └── pagingdemo
    │   │   │   │           ├── StudentDao.java
    │   │   │   │           ├── Student.java
    │   │   │   │           ├── StudentsDatabase.java
    │   │   │   │           ├── MyPagedAdapter.java
    │   │   │   │           └── MainActivity.java
    │   │   └── AndroidManifest.xml
    │   ├── test
    │   │   └── java
    │   │   │   └── com
    │   │   │       └── example
    │   │   │           └── pagingdemo
    │   │   │               └── ExampleUnitTest.java
    │   └── androidTest
    │   │   └── java
    │   │       └── com
    │   │           └── example
    │   │               └── pagingdemo
    │   │                   └── ExampleInstrumentedTest.java
    ├── proguard-rules.pro
    └── build.gradle
├── settings.gradle
├── gradle
    └── wrapper
    │   ├── gradle-wrapper.jar
    │   └── gradle-wrapper.properties
├── README.md
├── .gitignore
├── .idea
    ├── misc.xml
    ├── runConfigurations.xml
    ├── gradle.xml
    └── codeStyles
    │   └── Project.xml
├── gradle.properties
├── gradlew.bat
└── gradlew


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


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


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/app/src/main/res/values/strings.xml:
--------------------------------------------------------------------------------
1 | <resources>
2 |     <string name="app_name">PagingDemo</string>
3 | </resources>
4 | 


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/gradle/wrapper/gradle-wrapper.jar:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/longway777/PagingDemo/HEAD/gradle/wrapper/gradle-wrapper.jar


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/README.md:
--------------------------------------------------------------------------------
1 | # Paging
2 | Source code for video tutorials of "Android 基础教程" on bilibili.com [longway777](https://space.bilibili.com/137860026)  
3 | 


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/app/src/main/res/mipmap-hdpi/ic_launcher.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/longway777/PagingDemo/HEAD/app/src/main/res/mipmap-hdpi/ic_launcher.png


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/app/src/main/res/mipmap-mdpi/ic_launcher.png:
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https://raw.githubusercontent.com/longway777/PagingDemo/HEAD/app/src/main/res/mipmap-mdpi/ic_launcher.png


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/app/src/main/res/mipmap-xhdpi/ic_launcher.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/longway777/PagingDemo/HEAD/app/src/main/res/mipmap-xhdpi/ic_launcher.png


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/app/src/main/res/mipmap-xxhdpi/ic_launcher.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/longway777/PagingDemo/HEAD/app/src/main/res/mipmap-xxhdpi/ic_launcher.png


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/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png:
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https://raw.githubusercontent.com/longway777/PagingDemo/HEAD/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png


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/app/src/main/res/mipmap-hdpi/ic_launcher_round.png:
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https://raw.githubusercontent.com/longway777/PagingDemo/HEAD/app/src/main/res/mipmap-hdpi/ic_launcher_round.png


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/app/src/main/res/mipmap-mdpi/ic_launcher_round.png:
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https://raw.githubusercontent.com/longway777/PagingDemo/HEAD/app/src/main/res/mipmap-mdpi/ic_launcher_round.png


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/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png:
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https://raw.githubusercontent.com/longway777/PagingDemo/HEAD/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png


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/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png:
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https://raw.githubusercontent.com/longway777/PagingDemo/HEAD/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png


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/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png:
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https://raw.githubusercontent.com/longway777/PagingDemo/HEAD/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png


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/app/src/main/res/values/colors.xml:
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1 | <?xml version="1.0" encoding="utf-8"?>
2 | <resources>
3 |     <color name="colorPrimary">#008577</color>
4 |     <color name="colorPrimaryDark">#00574B</color>
5 |     <color name="colorAccent">#D81B60</color>
6 | </resources>
7 | 


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/.gitignore:
--------------------------------------------------------------------------------
 1 | *.iml
 2 | .gradle
 3 | /local.properties
 4 | /.idea/caches
 5 | /.idea/libraries
 6 | /.idea/modules.xml
 7 | /.idea/workspace.xml
 8 | /.idea/navEditor.xml
 9 | /.idea/assetWizardSettings.xml
10 | .DS_Store
11 | /build
12 | /captures
13 | .externalNativeBuild
14 | .cxx
15 | 


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/gradle/wrapper/gradle-wrapper.properties:
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1 | #Fri Nov 01 00:13:23 CST 2019
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-5.4.1-all.zip
7 | 


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/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml:
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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>


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/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>


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/.idea/misc.xml:
--------------------------------------------------------------------------------
1 | <?xml version="1.0" encoding="UTF-8"?>
2 | <project version="4">
3 |   <component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" project-jdk-name="1.8" project-jdk-type="JavaSDK">
4 |     <output url="file://$PROJECT_DIR$/build/classes" />
5 |   </component>
6 |   <component name="ProjectType">
7 |     <option name="id" value="Android" />
8 |   </component>
9 | </project>


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/app/src/main/res/values/styles.xml:
--------------------------------------------------------------------------------
 1 | <resources>
 2 | 
 3 |     <!-- Base application theme. -->
 4 |     <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
 5 |         <!-- Customize your theme here. -->
 6 |         <item name="colorPrimary">@color/colorPrimary</item>
 7 |         <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
 8 |         <item name="colorAccent">@color/colorAccent</item>
 9 |     </style>
10 | 
11 | </resources>
12 | 


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/app/src/test/java/com/example/pagingdemo/ExampleUnitTest.java:
--------------------------------------------------------------------------------
 1 | package com.example.pagingdemo;
 2 | 
 3 | import org.junit.Test;
 4 | 
 5 | import static org.junit.Assert.*;
 6 | 
 7 | /**
 8 |  * Example local unit test, which will execute on the development machine (host).
 9 |  *
10 |  * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
11 |  */
12 | public class ExampleUnitTest {
13 |     @Test
14 |     public void addition_isCorrect() {
15 |         assertEquals(4, 2 + 2);
16 |     }
17 | }


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/app/src/main/java/com/example/pagingdemo/StudentDao.java:
--------------------------------------------------------------------------------
 1 | package com.example.pagingdemo;
 2 | 
 3 | import androidx.paging.DataSource;
 4 | import androidx.room.Dao;
 5 | import androidx.room.Insert;
 6 | import androidx.room.Query;
 7 | 
 8 | @Dao
 9 | public interface StudentDao {
10 |     @Insert
11 |     void insertStudents(Student... students);
12 | 
13 |     @Query("DELETE FROM student_table")
14 |     void deleteAllStudents();
15 | 
16 |     @Query("SELECT * FROM student_table ORDER BY id")
17 |     DataSource.Factory<Integer, Student> getAllStudents();
18 | }
19 | 


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/.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>


--------------------------------------------------------------------------------
/.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 |         <compositeConfiguration>
 7 |           <compositeBuild compositeDefinitionSource="SCRIPT" />
 8 |         </compositeConfiguration>
 9 |         <option name="distributionType" value="DEFAULT_WRAPPED" />
10 |         <option name="externalProjectPath" value="$PROJECT_DIR$" />
11 |         <option name="resolveModulePerSourceSet" value="false" />
12 |         <option name="testRunner" value="PLATFORM" />
13 |       </GradleProjectSettings>
14 |     </option>
15 |   </component>
16 | </project>


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/app/src/main/java/com/example/pagingdemo/Student.java:
--------------------------------------------------------------------------------
 1 | package com.example.pagingdemo;
 2 | 
 3 | import androidx.room.ColumnInfo;
 4 | import androidx.room.Entity;
 5 | import androidx.room.PrimaryKey;
 6 | 
 7 | @Entity(tableName = "student_table")
 8 | public class Student {
 9 |     @PrimaryKey(autoGenerate = true)
10 |     private int id;
11 |     @ColumnInfo(name = "student_number")
12 |     private int studentNumber;
13 | 
14 |     public int getId() {
15 |         return id;
16 |     }
17 | 
18 |     public void setId(int id) {
19 |         this.id = id;
20 |     }
21 | 
22 |     public int getStudentNumber() {
23 |         return studentNumber;
24 |     }
25 | 
26 |     public void setStudentNumber(int studentNumber) {
27 |         this.studentNumber = studentNumber;
28 |     }
29 | }
30 | 


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/app/src/main/java/com/example/pagingdemo/StudentsDatabase.java:
--------------------------------------------------------------------------------
 1 | package com.example.pagingdemo;
 2 | 
 3 | import android.content.Context;
 4 | 
 5 | import androidx.room.Database;
 6 | import androidx.room.Room;
 7 | import androidx.room.RoomDatabase;
 8 | 
 9 | @Database(entities = {Student.class}, version = 1, exportSchema = false)
10 | public abstract class StudentsDatabase extends RoomDatabase {
11 |     private static StudentsDatabase instance;
12 | 
13 |     static synchronized StudentsDatabase getInstance(Context context) {
14 |         if (instance == null) {
15 |             instance = Room.databaseBuilder(context, StudentsDatabase.class, "students_database")
16 |                     .build();
17 |         }
18 |         return instance;
19 |     }
20 | 
21 |     abstract StudentDao getStudentDao();
22 | }
23 | 


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/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.example.pagingdemo">
 4 | 
 5 |     <application
 6 |         android:allowBackup="true"
 7 |         android:icon="@mipmap/ic_launcher"
 8 |         android:label="@string/app_name"
 9 |         android:roundIcon="@mipmap/ic_launcher_round"
10 |         android:supportsRtl="true"
11 |         android:theme="@style/AppTheme">
12 |         <activity android:name=".MainActivity">
13 |             <intent-filter>
14 |                 <action android:name="android.intent.action.MAIN" />
15 | 
16 |                 <category android:name="android.intent.category.LAUNCHER" />
17 |             </intent-filter>
18 |         </activity>
19 |     </application>
20 | 
21 | </manifest>


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/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 | 


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/app/src/main/res/layout/cell.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3 |     xmlns:app="http://schemas.android.com/apk/res-auto"
 4 |     android:layout_width="match_parent"
 5 |     android:layout_height="wrap_content">
 6 | 
 7 |     <TextView
 8 |         android:id="@+id/textView"
 9 |         android:layout_width="wrap_content"
10 |         android:layout_height="wrap_content"
11 |         android:layout_marginTop="8dp"
12 |         android:layout_marginBottom="8dp"
13 |         android:text="TextView"
14 |         android:textSize="24sp"
15 |         app:layout_constraintBottom_toBottomOf="parent"
16 |         app:layout_constraintEnd_toEndOf="parent"
17 |         app:layout_constraintStart_toStartOf="parent"
18 |         app:layout_constraintTop_toTopOf="parent" />
19 | </androidx.constraintlayout.widget.ConstraintLayout>


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/app/src/androidTest/java/com/example/pagingdemo/ExampleInstrumentedTest.java:
--------------------------------------------------------------------------------
 1 | package com.example.pagingdemo;
 2 | 
 3 | import android.content.Context;
 4 | 
 5 | import androidx.test.platform.app.InstrumentationRegistry;
 6 | import androidx.test.ext.junit.runners.AndroidJUnit4;
 7 | 
 8 | import org.junit.Test;
 9 | import org.junit.runner.RunWith;
10 | 
11 | import static org.junit.Assert.*;
12 | 
13 | /**
14 |  * Instrumented test, which will execute on an Android device.
15 |  *
16 |  * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
17 |  */
18 | @RunWith(AndroidJUnit4.class)
19 | public class ExampleInstrumentedTest {
20 |     @Test
21 |     public void useAppContext() {
22 |         // Context of the app under test.
23 |         Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
24 | 
25 |         assertEquals("com.example.pagingdemo", appContext.getPackageName());
26 |     }
27 | }
28 | 


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/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=-Xmx1536m
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 | 
21 | 


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/app/build.gradle:
--------------------------------------------------------------------------------
 1 | apply plugin: 'com.android.application'
 2 | 
 3 | android {
 4 |     compileSdkVersion 28
 5 |     defaultConfig {
 6 |         applicationId "com.example.pagingdemo"
 7 |         minSdkVersion 19
 8 |         targetSdkVersion 28
 9 |         versionCode 1
10 |         versionName "1.0"
11 |         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
12 |     }
13 |     buildTypes {
14 |         release {
15 |             minifyEnabled false
16 |             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
17 |         }
18 |     }
19 | }
20 | 
21 | dependencies {
22 |     def paging_version = "2.1.0"
23 |     implementation "androidx.paging:paging-runtime:$paging_version"
24 |     def room_version = "2.2.1"
25 | 
26 |     implementation "androidx.room:room-runtime:$room_version"
27 |     annotationProcessor "androidx.room:room-compiler:$room_version"
28 |     implementation fileTree(dir: 'libs', include: ['*.jar'])
29 |     implementation 'androidx.appcompat:appcompat:1.1.0'
30 |     implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
31 |     testImplementation 'junit:junit:4.12'
32 |     androidTestImplementation 'androidx.test.ext:junit:1.1.1'
33 |     androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
34 | }
35 | 


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/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
 8 |         android:fillType="evenOdd"
 9 |         android:pathData="M32,64C32,64 38.39,52.99 44.13,50.95C51.37,48.37 70.14,49.57 70.14,49.57L108.26,87.69L108,109.01L75.97,107.97L32,64Z"
10 |         android:strokeWidth="1"
11 |         android:strokeColor="#00000000">
12 |         <aapt:attr name="android:fillColor">
13 |             <gradient
14 |                 android:endX="78.5885"
15 |                 android:endY="90.9159"
16 |                 android:startX="48.7653"
17 |                 android:startY="61.0927"
18 |                 android:type="linear">
19 |                 <item
20 |                     android:color="#44000000"
21 |                     android:offset="0.0" />
22 |                 <item
23 |                     android:color="#00000000"
24 |                     android:offset="1.0" />
25 |             </gradient>
26 |         </aapt:attr>
27 |     </path>
28 |     <path
29 |         android:fillColor="#FFFFFF"
30 |         android:fillType="nonZero"
31 |         android:pathData="M66.94,46.02L66.94,46.02C72.44,50.07 76,56.61 76,64L32,64C32,56.61 35.56,50.11 40.98,46.06L36.18,41.19C35.45,40.45 35.45,39.3 36.18,38.56C36.91,37.81 38.05,37.81 38.78,38.56L44.25,44.05C47.18,42.57 50.48,41.71 54,41.71C57.48,41.71 60.78,42.57 63.68,44.05L69.11,38.56C69.84,37.81 70.98,37.81 71.71,38.56C72.44,39.3 72.44,40.45 71.71,41.19L66.94,46.02ZM62.94,56.92C64.08,56.92 65,56.01 65,54.88C65,53.76 64.08,52.85 62.94,52.85C61.8,52.85 60.88,53.76 60.88,54.88C60.88,56.01 61.8,56.92 62.94,56.92ZM45.06,56.92C46.2,56.92 47.13,56.01 47.13,54.88C47.13,53.76 46.2,52.85 45.06,52.85C43.92,52.85 43,53.76 43,54.88C43,56.01 43.92,56.92 45.06,56.92Z"
32 |         android:strokeWidth="1"
33 |         android:strokeColor="#00000000" />
34 | </vector>
35 | 


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/app/src/main/java/com/example/pagingdemo/MyPagedAdapter.java:
--------------------------------------------------------------------------------
 1 | package com.example.pagingdemo;
 2 | 
 3 | import android.view.LayoutInflater;
 4 | import android.view.View;
 5 | import android.view.ViewGroup;
 6 | import android.widget.TextView;
 7 | 
 8 | import androidx.annotation.NonNull;
 9 | import androidx.paging.PagedListAdapter;
10 | import androidx.recyclerview.widget.DiffUtil;
11 | import androidx.recyclerview.widget.RecyclerView;
12 | 
13 | public class MyPagedAdapter extends PagedListAdapter<Student, MyPagedAdapter.MyViewHolder> {
14 |     public MyPagedAdapter() {
15 |         super(new DiffUtil.ItemCallback<Student>() {
16 |             @Override
17 |             public boolean areItemsTheSame(@NonNull Student oldItem, @NonNull Student newItem) {
18 |                 return oldItem.getId() == newItem.getId();
19 |             }
20 | 
21 |             @Override
22 |             public boolean areContentsTheSame(@NonNull Student oldItem, @NonNull Student newItem) {
23 |                 return oldItem.getStudentNumber() == newItem.getStudentNumber();
24 |             }
25 |         });
26 |     }
27 | 
28 |     @NonNull
29 |     @Override
30 |     public MyViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
31 |         LayoutInflater inflater = LayoutInflater.from(parent.getContext());
32 |         View view = inflater.inflate(R.layout.cell, parent, false);
33 |         return new MyViewHolder(view);
34 |     }
35 | 
36 |     @Override
37 |     public void onBindViewHolder(@NonNull MyViewHolder holder, int position) {
38 |         Student student = getItem(position);
39 |         if (student == null) {
40 |             holder.textView.setText("loading");
41 |         } else {
42 |             holder.textView.setText(String.valueOf(student.getStudentNumber()));
43 | 
44 |         }
45 |     }
46 | 
47 |     static class MyViewHolder extends RecyclerView.ViewHolder {
48 |         TextView textView;
49 | 
50 |         public MyViewHolder(@NonNull View itemView) {
51 |             super(itemView);
52 |             textView = itemView.findViewById(R.id.textView);
53 |         }
54 |     }
55 | }
56 | 


--------------------------------------------------------------------------------
/app/src/main/res/layout/activity_main.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <androidx.constraintlayout.widget.ConstraintLayout 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:layout_width="match_parent"
 6 |     android:layout_height="match_parent"
 7 |     tools:context=".MainActivity">
 8 | 
 9 |     <androidx.constraintlayout.widget.Guideline
10 |         android:id="@+id/guideline"
11 |         android:layout_width="wrap_content"
12 |         android:layout_height="wrap_content"
13 |         android:orientation="horizontal"
14 |         app:layout_constraintGuide_percent="0.9056088" />
15 | 
16 |     <Button
17 |         android:id="@+id/buttonPopulate"
18 |         android:layout_width="wrap_content"
19 |         android:layout_height="wrap_content"
20 |         android:text="生成"
21 |         app:layout_constraintBottom_toBottomOf="parent"
22 |         app:layout_constraintEnd_toStartOf="@+id/buttonClear"
23 |         app:layout_constraintHorizontal_bias="0.5"
24 |         app:layout_constraintStart_toStartOf="parent"
25 |         app:layout_constraintTop_toTopOf="@+id/guideline" />
26 | 
27 |     <Button
28 |         android:id="@+id/buttonClear"
29 |         android:layout_width="wrap_content"
30 |         android:layout_height="wrap_content"
31 |         android:text="清空"
32 |         app:layout_constraintBottom_toBottomOf="parent"
33 |         app:layout_constraintEnd_toEndOf="parent"
34 |         app:layout_constraintHorizontal_bias="0.5"
35 |         app:layout_constraintStart_toEndOf="@+id/buttonPopulate"
36 |         app:layout_constraintTop_toTopOf="@+id/guideline" />
37 | 
38 |     <androidx.recyclerview.widget.RecyclerView
39 |         android:id="@+id/recyclerView"
40 |         android:layout_width="0dp"
41 |         android:layout_height="0dp"
42 |         app:layout_constraintBottom_toTopOf="@+id/guideline"
43 |         app:layout_constraintEnd_toEndOf="parent"
44 |         app:layout_constraintStart_toStartOf="parent"
45 |         app:layout_constraintTop_toTopOf="parent" />
46 | </androidx.constraintlayout.widget.ConstraintLayout>


--------------------------------------------------------------------------------
/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 | 


--------------------------------------------------------------------------------
/.idea/codeStyles/Project.xml:
--------------------------------------------------------------------------------
  1 | <component name="ProjectCodeStyleConfiguration">
  2 |   <code_scheme name="Project" version="173">
  3 |     <codeStyleSettings language="XML">
  4 |       <indentOptions>
  5 |         <option name="CONTINUATION_INDENT_SIZE" value="4" />
  6 |       </indentOptions>
  7 |       <arrangement>
  8 |         <rules>
  9 |           <section>
 10 |             <rule>
 11 |               <match>
 12 |                 <AND>
 13 |                   <NAME>xmlns:android</NAME>
 14 |                   <XML_ATTRIBUTE />
 15 |                   <XML_NAMESPACE>^$</XML_NAMESPACE>
 16 |                 </AND>
 17 |               </match>
 18 |             </rule>
 19 |           </section>
 20 |           <section>
 21 |             <rule>
 22 |               <match>
 23 |                 <AND>
 24 |                   <NAME>xmlns:.*</NAME>
 25 |                   <XML_ATTRIBUTE />
 26 |                   <XML_NAMESPACE>^$</XML_NAMESPACE>
 27 |                 </AND>
 28 |               </match>
 29 |               <order>BY_NAME</order>
 30 |             </rule>
 31 |           </section>
 32 |           <section>
 33 |             <rule>
 34 |               <match>
 35 |                 <AND>
 36 |                   <NAME>.*:id</NAME>
 37 |                   <XML_ATTRIBUTE />
 38 |                   <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
 39 |                 </AND>
 40 |               </match>
 41 |             </rule>
 42 |           </section>
 43 |           <section>
 44 |             <rule>
 45 |               <match>
 46 |                 <AND>
 47 |                   <NAME>.*:name</NAME>
 48 |                   <XML_ATTRIBUTE />
 49 |                   <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
 50 |                 </AND>
 51 |               </match>
 52 |             </rule>
 53 |           </section>
 54 |           <section>
 55 |             <rule>
 56 |               <match>
 57 |                 <AND>
 58 |                   <NAME>name</NAME>
 59 |                   <XML_ATTRIBUTE />
 60 |                   <XML_NAMESPACE>^$</XML_NAMESPACE>
 61 |                 </AND>
 62 |               </match>
 63 |             </rule>
 64 |           </section>
 65 |           <section>
 66 |             <rule>
 67 |               <match>
 68 |                 <AND>
 69 |                   <NAME>style</NAME>
 70 |                   <XML_ATTRIBUTE />
 71 |                   <XML_NAMESPACE>^$</XML_NAMESPACE>
 72 |                 </AND>
 73 |               </match>
 74 |             </rule>
 75 |           </section>
 76 |           <section>
 77 |             <rule>
 78 |               <match>
 79 |                 <AND>
 80 |                   <NAME>.*</NAME>
 81 |                   <XML_ATTRIBUTE />
 82 |                   <XML_NAMESPACE>^$</XML_NAMESPACE>
 83 |                 </AND>
 84 |               </match>
 85 |               <order>BY_NAME</order>
 86 |             </rule>
 87 |           </section>
 88 |           <section>
 89 |             <rule>
 90 |               <match>
 91 |                 <AND>
 92 |                   <NAME>.*</NAME>
 93 |                   <XML_ATTRIBUTE />
 94 |                   <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
 95 |                 </AND>
 96 |               </match>
 97 |               <order>ANDROID_ATTRIBUTE_ORDER</order>
 98 |             </rule>
 99 |           </section>
100 |           <section>
101 |             <rule>
102 |               <match>
103 |                 <AND>
104 |                   <NAME>.*</NAME>
105 |                   <XML_ATTRIBUTE />
106 |                   <XML_NAMESPACE>.*</XML_NAMESPACE>
107 |                 </AND>
108 |               </match>
109 |               <order>BY_NAME</order>
110 |             </rule>
111 |           </section>
112 |         </rules>
113 |       </arrangement>
114 |     </codeStyleSettings>
115 |   </code_scheme>
116 | </component>


--------------------------------------------------------------------------------
/app/src/main/java/com/example/pagingdemo/MainActivity.java:
--------------------------------------------------------------------------------
  1 | package com.example.pagingdemo;
  2 | 
  3 | import android.os.AsyncTask;
  4 | import android.os.Bundle;
  5 | import android.util.Log;
  6 | import android.view.View;
  7 | import android.widget.Button;
  8 | 
  9 | import androidx.appcompat.app.AppCompatActivity;
 10 | import androidx.lifecycle.LiveData;
 11 | import androidx.lifecycle.Observer;
 12 | import androidx.paging.LivePagedListBuilder;
 13 | import androidx.paging.PagedList;
 14 | import androidx.recyclerview.widget.DividerItemDecoration;
 15 | import androidx.recyclerview.widget.LinearLayoutManager;
 16 | import androidx.recyclerview.widget.RecyclerView;
 17 | 
 18 | public class MainActivity extends AppCompatActivity {
 19 |     RecyclerView recyclerView;
 20 |     Button buttonPopulate, buttonClear;
 21 |     StudentDao studentDao;
 22 |     StudentsDatabase studentsDatabase;
 23 |     MyPagedAdapter pagedAdapter;
 24 |     LiveData<PagedList<Student>> allStudentsLivePaged;
 25 | 
 26 |     @Override
 27 |     protected void onCreate(Bundle savedInstanceState) {
 28 |         super.onCreate(savedInstanceState);
 29 |         setContentView(R.layout.activity_main);
 30 |         recyclerView = findViewById(R.id.recyclerView);
 31 |         pagedAdapter = new MyPagedAdapter();
 32 |         recyclerView.setLayoutManager(new LinearLayoutManager(this, LinearLayoutManager.VERTICAL, false));
 33 |         recyclerView.addItemDecoration(new DividerItemDecoration(this, DividerItemDecoration.VERTICAL));
 34 |         recyclerView.setAdapter(pagedAdapter);
 35 |         studentsDatabase = StudentsDatabase.getInstance(this);
 36 |         studentDao = studentsDatabase.getStudentDao();
 37 |         allStudentsLivePaged = new LivePagedListBuilder<>(studentDao.getAllStudents(), 2)
 38 |                 .build();
 39 |         allStudentsLivePaged.observe(this, new Observer<PagedList<Student>>() {
 40 |             @Override
 41 |             public void onChanged(final PagedList<Student> students) {
 42 |                 pagedAdapter.submitList(students);
 43 |                 students.addWeakCallback(null, new PagedList.Callback() {
 44 |                     @Override
 45 |                     public void onChanged(int position, int count) {
 46 |                         Log.d("myLog", "onChanged: " + students);
 47 |                     }
 48 | 
 49 |                     @Override
 50 |                     public void onInserted(int position, int count) {
 51 | 
 52 |                     }
 53 | 
 54 |                     @Override
 55 |                     public void onRemoved(int position, int count) {
 56 | 
 57 |                     }
 58 |                 });
 59 |             }
 60 |         });
 61 | 
 62 |         buttonPopulate = findViewById(R.id.buttonPopulate);
 63 |         buttonClear = findViewById(R.id.buttonClear);
 64 | 
 65 |         buttonPopulate.setOnClickListener(new View.OnClickListener() {
 66 |             @Override
 67 |             public void onClick(View v) {
 68 |                 Student[] students = new Student[1000];
 69 |                 for (int i = 0; i < 1000; i++) {
 70 |                     Student student = new Student();
 71 |                     student.setStudentNumber(i);
 72 |                     students[i] = student;
 73 |                 }
 74 |                 new InsertAsyncTask(studentDao).execute(students);
 75 |                 new InsertAsyncTask(studentDao).execute();
 76 |             }
 77 |         });
 78 | 
 79 |         buttonClear.setOnClickListener(new View.OnClickListener() {
 80 |             @Override
 81 |             public void onClick(View v) {
 82 |                 new ClearAsyncTask(studentDao).execute();
 83 |             }
 84 |         });
 85 | 
 86 | 
 87 |     }
 88 | 
 89 |     static class InsertAsyncTask extends AsyncTask<Student, Void, Void> {
 90 |         StudentDao studentDao;
 91 | 
 92 |         public InsertAsyncTask(StudentDao studentDao) {
 93 |             this.studentDao = studentDao;
 94 |         }
 95 | 
 96 |         @Override
 97 |         protected Void doInBackground(Student... students) {
 98 |             studentDao.insertStudents(students);
 99 |             return null;
100 |         }
101 |     }
102 | 
103 |     static class ClearAsyncTask extends AsyncTask<Void, Void, Void> {
104 |         StudentDao studentDao;
105 | 
106 |         public ClearAsyncTask(StudentDao studentDao) {
107 |             this.studentDao = studentDao;
108 |         }
109 | 
110 |         @Override
111 |         protected Void doInBackground(Void... voids) {
112 |             studentDao.deleteAllStudents();
113 |             return null;
114 |         }
115 |     }
116 | }
117 | 


--------------------------------------------------------------------------------
/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="#008577"
  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
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170 | </vector>
171 | 


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