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vogellavogella
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Adds Dagger 2 example
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‎com.vogella.android.dagger2simple/.gitignore‎

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.gradle
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/local.properties
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/.idea/workspace.xml
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/.idea/libraries
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.DS_Store
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/build
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/captures

‎com.vogella.android.dagger2simple/app/.gitignore‎

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/build

‎com.vogella.android.dagger2simple/app/build.gradle‎

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apply plugin: 'com.android.application'
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apply plugin: 'com.neenbedankt.android-apt'
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android {
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compileSdkVersion 23
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buildToolsVersion "23.0.0"
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defaultConfig {
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applicationId "com.vogella.android.dagger2simple"
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minSdkVersion 22
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targetSdkVersion 23
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versionCode 1
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versionName "1.0"
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}
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buildTypes {
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release {
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minifyEnabled false
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proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
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}
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}
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}
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dependencies {
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compile fileTree(dir: 'libs', include: ['*.jar'])
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compile 'com.google.dagger:dagger:2.0'
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apt 'com.google.dagger:dagger-compiler:2.0'
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provided 'javax.annotation:jsr250-api:1.0'
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compile 'javax.inject:javax.inject:1'
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testCompile 'junit:junit:4.12'
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}

‎com.vogella.android.dagger2simple/app/proguard-rules.pro‎

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# Add project specific ProGuard rules here.
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# By default, the flags in this file are appended to flags specified
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# in /home/vogella/Android/Sdk/tools/proguard/proguard-android.txt
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# You can edit the include path and order by changing the proguardFiles
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# directive in build.gradle.
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#
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# For more details, see
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# http://developer.android.com/guide/developing/tools/proguard.html
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# Add any project specific keep options here:
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# If your project uses WebView with JS, uncomment the following
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# and specify the fully qualified class name to the JavaScript interface
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# class:
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#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
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# public *;
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#}

‎com.vogella.android.dagger2simple/app/src/androidTest/java/com/vogella/android/dagger2simple/ApplicationTest.java‎

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package com.vogella.android.dagger2simple;
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import android.app.Application;
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import android.test.ApplicationTestCase;
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/**
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* <a href="http://d.android.com/tools/testing/testing_android.html">Testing Fundamentals</a>
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*/
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public class ApplicationTest extends ApplicationTestCase<Application> {
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public ApplicationTest() {
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super(Application.class);
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}
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}

‎com.vogella.android.dagger2simple/app/src/main/AndroidManifest.xml‎

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<?xml version="1.0" encoding="utf-8"?>
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<manifest xmlns:android="http://schemas.android.com/apk/res/android"
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package="com.vogella.android.dagger2simple" >
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<application
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android:name=".MyApplication"
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android:allowBackup="true"
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android:icon="@mipmap/ic_launcher"
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android:label="@string/app_name"
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android:theme="@style/AppTheme" >
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<activity
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android:name=".MainActivity"
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android:label="@string/app_name" >
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<intent-filter>
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<action android:name="android.intent.action.MAIN" />
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<category android:name="android.intent.category.LAUNCHER" />
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</intent-filter>
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</activity>
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</application>
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</manifest>

‎com.vogella.android.dagger2simple/app/src/main/java/com/vogella/android/dagger2simple/MainActivity.java‎

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package com.vogella.android.dagger2simple;
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import android.app.Activity;
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import android.os.Bundle;
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import android.view.Menu;
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import android.view.MenuItem;
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import android.widget.TextView;
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import android.widget.Toast;
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import javax.inject.Inject;
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public class MainActivity extends Activity {
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@Inject NetworkApi networkApi;
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_main);
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((MyApplication) getApplication()).getComponent().inject(this);
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boolean injected = networkApi == null ? false : true;
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TextView userAvailable = (TextView) findViewById(R.id.target);
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userAvailable.setText("Dependency injection worked: " + String.valueOf(injected));
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}
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}

‎com.vogella.android.dagger2simple/app/src/main/java/com/vogella/android/dagger2simple/MyApplication.java‎

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package com.vogella.android.dagger2simple;
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import android.app.Application;
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import com.vogella.android.dagger2simple.components.DaggerDiComponent;
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import com.vogella.android.dagger2simple.components.DiComponent;
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public class MyApplication extends Application {
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DiComponent component;
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@Override
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public void onCreate() {
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super.onCreate();
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component = DaggerDiComponent.builder().build();
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}
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public DiComponent getComponent() {
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return component;
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}
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}

‎com.vogella.android.dagger2simple/app/src/main/java/com/vogella/android/dagger2simple/NetworkApi.java‎

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package com.vogella.android.dagger2simple;
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public class NetworkApi {
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public boolean validateUser(String username, String password) {
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// imagine an actual network call here
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// for demo purpose return false in "real" life
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if (username == null || username.length() == 0) {
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return false;
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} else {
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return true;
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}
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}
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}

‎com.vogella.android.dagger2simple/app/src/main/java/com/vogella/android/dagger2simple/components/DiComponent.java‎

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package com.vogella.android.dagger2simple.components;
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import android.app.Activity;
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import com.vogella.android.dagger2simple.MainActivity;
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import com.vogella.android.dagger2simple.NetworkApi;
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import com.vogella.android.dagger2simple.modules.NetworkApiModule;
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import javax.inject.Singleton;
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import dagger.Component;
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@Singleton
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@Component(modules = {NetworkApiModule.class})
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public interface DiComponent {
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// to update the fields in your activities
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void inject(MainActivity activity);
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}

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