基于paging3的基础功能

.gitignore

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+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx

app/.gitignore

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+/build

app/build.gradle

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+apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
+apply plugin: 'kotlin-kapt'
+apply plugin: 'kotlin-android-extensions'
+
+android {
+    compileSdkVersion rootProject.compileSdkVersion
+    defaultConfig {
+        applicationId "com.lbz.googlearchitecture"
+        minSdkVersion rootProject.minSdkVersion
+        targetSdkVersion rootProject.targetSdkVersion
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+
+    kotlinOptions {
+        jvmTarget = "1.8"
+        freeCompilerArgs += ["-Xopt-in=kotlin.RequiresOptIn"]
+    }
+
+    compileOptions {
+        sourceCompatibility 1.8
+        targetCompatibility 1.8
+    }
+
+    viewBinding {
+        enabled = true
+    }
+}
+
+dependencies {
+    implementation fileTree(dir: 'libs')
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:$coroutines"
+    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:$coroutines"
+    implementation "androidx.appcompat:appcompat:$supportLibVersion"
+    implementation "androidx.recyclerview:recyclerview:$recyclerViewVersion"
+    implementation "androidx.constraintlayout:constraintlayout:$constraintLayoutVersion"
+    implementation "com.google.android.material:material:$materialVersion"
+
+    // architecture components
+    implementation "androidx.core:core-ktx:$coreVersion"
+    implementation "androidx.lifecycle:lifecycle-extensions:$lifecycleVersion"
+    implementation "androidx.lifecycle:lifecycle-runtime-ktx:$lifecycleVersion"
+    implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:$lifecycleVersion"
+    implementation "androidx.lifecycle:lifecycle-livedata-ktx:$lifecycleVersion"
+    implementation "androidx.room:room-runtime:$roomVersion"
+    implementation "androidx.room:room-ktx:$roomVersion"
+    implementation "androidx.paging:paging-runtime:$pagingVersion"
+    kapt "androidx.room:room-compiler:$roomVersion"
+
+    // retrofit
+    implementation "com.squareup.retrofit2:retrofit:$retrofitVersion"
+    implementation "com.squareup.retrofit2:converter-gson:$retrofitVersion"
+    implementation "com.squareup.retrofit2:retrofit-mock:$retrofitVersion"
+    implementation "com.squareup.okhttp3:logging-interceptor:$okhttpLoggingInterceptorVersion"
+
+    // testing
+    testImplementation "junit:junit:$junitVersion"
+    androidTestImplementation "androidx.test:runner:$runnerVersion"
+    androidTestImplementation "androidx.test.espresso:espresso-core:$espressoVersion"
+
+}

app/proguard-rules.pro

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+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

app/src/androidTest/java/com/lbz/googlearchitecture/ExampleInstrumentedTest.kt

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+package com.lbz.googlearchitecture
+
+import androidx.test.platform.app.InstrumentationRegistry
+import androidx.test.ext.junit.runners.AndroidJUnit4
+
+import org.junit.Test
+import org.junit.runner.RunWith
+
+import org.junit.Assert.*
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+@RunWith(AndroidJUnit4::class)
+class ExampleInstrumentedTest {
+    @Test
+    fun useAppContext() {
+        // Context of the app under test.
+        val appContext = InstrumentationRegistry.getInstrumentation().targetContext
+        assertEquals("com.lbz.googlearchitecture", appContext.packageName)
+    }
+}

app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.lbz.googlearchitecture">
+
+    <uses-permission android:name="android.permission.INTERNET"/>
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme">
+        <activity android:name=".ui.MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>