iammert

public class AndroidSampleApp extends Application implements HasActivityInjector {

    @Inject
    DispatchingAndroidInjector<Activity> activityDispatchingAndroidInjector;

    @Override
    public void onCreate() {
        super.onCreate();
        //simplified
    }

iammert

@Module
public class MainActivityModule {

    @Provides
    MainView provideMainView(MainActivity mainActivity){
        return mainActivity;
    }

    @Provides
    MainPresenter provideMainPresenter(MainView mainView, ApiService apiService){

iammert

@Subcomponent(modules = MainActivityModule.class)
public interface MainActivityComponent extends AndroidInjector<MainActivity>{
    @Subcomponent.Builder
    abstract class Builder extends AndroidInjector.Builder<MainActivity>{}
}

iammert

@Module(subcomponents = {
        MainActivityComponent.class,
        DetailActivityComponent.class})
public class AppModule {

    @Provides
    @Singleton
    Context provideContext(Application application) {
        return application;
    }

iammert

@Component(modules = {
        AndroidInjectionModule.class,
        AppModule.class,
        ActivityBuilder.class})
public interface AppComponent {

    @Component.Builder
    interface Builder {
        @BindsInstance Builder application(Application application);
        AppComponent build();

iammert

@Module
public abstract class ActivityBuilder {

    @Binds
    @IntoMap
    @ActivityKey(MainActivity.class)
    abstract AndroidInjector.Factory<? extends Activity> bindMainActivity(MainActivityComponent.Builder builder);

    @Binds
    @IntoMap

iammert

JavaFile.builder("com.annotationsample", navigatorClass.build())
  .build()
  .writeTo(filer);

iammert

            TypeSpec.Builder navigatorClass = TypeSpec
                    .classBuilder("Navigator")
                    .addModifiers(Modifier.PUBLIC, Modifier.FINAL);

            for (Map.Entry<String, String> element : activitiesWithPackage.entrySet()) {
                String activityName = element.getKey();
                String packageName = element.getValue();
                ClassName activityClass = ClassName.get(packageName, activityName);
                MethodSpec intentMethod = MethodSpec
                        .methodBuilder(METHOD_PREFIX + activityName)

iammert

for (Element element : roundEnvironment.getElementsAnnotatedWith(NewIntent.class)) {

                if (element.getKind() != ElementKind.CLASS) {
                    messager.printMessage(Diagnostic.Kind.ERROR, "Can be applied to class.");
                    return true;
                }

                TypeElement typeElement = (TypeElement) element;
                activitiesWithPackage.put(
                        typeElement.getSimpleName().toString(),

iammert

public final class Navigator {
  public static Intent startMainActivity(Context context) {
    return new Intent(context, com.annotationsample.MainActivity.class);
  }
}