Small gist shows how to config Dagger 2 to an Android project
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May 7, 2020 19:55
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Dagger 2 configuration
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| // top level build.gradle | |
| buildscript { | |
| repositories { | |
| jcenter() | |
| } | |
| dependencies { | |
| classpath 'com.android.tools.build:gradle:1.5.0' | |
| classpath 'com.neenbedankt.gradle.plugins:android-apt:1.8' // apt for manage code generation | |
| } | |
| } | |
| allprojects { | |
| repositories { | |
| jcenter() | |
| } | |
| } | |
| task clean(type: Delete) { | |
| delete rootProject.buildDir | |
| } |
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| // app build.gradle | |
| apply plugin: 'com.android.application' | |
| // Use to manage code generation | |
| apply plugin: 'com.neenbedankt.android-apt' | |
| android { | |
| compileSdkVersion 23 | |
| buildToolsVersion "23.0.2" | |
| defaultConfig { | |
| applicationId "com.lenguyenthanh.nimbledagger2" | |
| minSdkVersion 15 | |
| targetSdkVersion 23 | |
| versionCode 1 | |
| versionName "1.0" | |
| } | |
| buildTypes { | |
| release { | |
| minifyEnabled false | |
| proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' | |
| } | |
| } | |
| } | |
| dependencies { | |
| compile 'com.android.support:appcompat-v7:23.2.0' | |
| compile 'com.android.support:design:23.2.0' | |
| //Dagger 2 dependency | |
| compile 'com.google.dagger:dagger:2.4' | |
| apt 'com.google.dagger:dagger-compiler:2.4' | |
| } |
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| // An example module, this module only provides one dependency - DaggerApplication object | |
| @Module | |
| public class AppModule { | |
| DaggerApplication mApplication; | |
| public AppModule(DaggerApplication application) { | |
| mApplication = application; | |
| } | |
| @Provides | |
| @Singleton | |
| DaggerApplication providesApplication() { | |
| return mApplication; | |
| } | |
| } |
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| // Example Application object, need to declare it in manifest.xml | |
| public class DaggerApplication extends Application{ | |
| protected AppComponent appComponent; | |
| // provide appComponent to use in other classes | |
| public AppComponent getAppComponent() { | |
| return appComponent; | |
| } | |
| public static DaggerApplication get(Context context) { | |
| return (DaggerApplication) context.getApplicationContext(); | |
| } | |
| @Override | |
| public void onCreate() { | |
| super.onCreate(); | |
| initializeDaggerComponent(); | |
| } | |
| // build an instance of AppComponent, we need to keep this instance for another sub components in project | |
| protected void initializeDaggerComponent() { | |
| // DaggerDaggerApplication_AppComponent is a generated class. It only appears after first success build. | |
| appComponent = DaggerDaggerApplication_AppComponent.builder() | |
| .appModule(new AppModule(this)) // add AppModule instance to the component | |
| .build(); | |
| appComponent.inject(this); // inject dependencies to this class | |
| } | |
| // AppComponent component interface - root component of the project | |
| @Singleton | |
| @Component(modules = AppModule.class) | |
| public interface AppComponent { | |
| DaggerApplication application(); | |
| void inject(DaggerApplication app); | |
| } | |
| } |
It would be great if you also add testing configuration
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