java - Android dagger 2.11 中的 BroadcastReceiver

Question

我正在尝试在 android 中使用 dagger 注入(inject)广播接收器。我正在使用 Dagger 2.11。我有 BroadcastReceiver 模块类、组件类，并在 Application 类中实现 HasBroadcastReceiverInjector 。我是否必须在 Application 类中实现 HasBroadcastReceiverInjector，或者我可以在 Activity 类中实现 HasBroadcastReceiverInjector 。有没有人成功用 Dagger 注入(inject)BroadcastReceiver，或者有人知道我做错了什么

这是我的 BroadcastReceiver 模块类

@Subcomponent(modules = LikeBroadcastReceiverModule.class)
public interface LikeBroadcastReceiverComponent extends AndroidInjector<LikeBroadcaseReceiver> {

@Subcomponent.Builder
abstract class Builder extends AndroidInjector.Builder<LikeBroadcaseReceiver>{}}

这是我的 BroadcastReceiver 模块类

@Module
public class LikeBroadcastReceiverModule {

@Provides
public LikeBroadcastReceiverView provideBroadcastView(LikeBroadcaseReceiver likeBroadcaseReceiver){
    return likeBroadcaseReceiver;
}

@Provides
public BroadcastReceiverPresenter providePresenter(){
    return new BroadcastReceiverPresenterImpl();
}}

这是我的应用程序类

public class EasyDriveApplication extends Application implements HasActivityInjector, HasBroadcastReceiverInjector{

@Inject
DispatchingAndroidInjector<Activity> activityDispatchingAndroidInjector;

@Inject
DispatchingAndroidInjector<BroadcastReceiver> broadcastReceiverDispatchingAndroidInjector;

@Override
public void onCreate() {
    super.onCreate();
    //Fabric.with(this, new Crashlytics());
    DaggerAppComponent.builder().application(this).build().inject(this);
}

@Override
public AndroidInjector<Activity> activityInjector() {
    return activityDispatchingAndroidInjector;
}

@Override
public AndroidInjector<BroadcastReceiver> broadcastReceiverInjector() {
    return broadcastReceiverDispatchingAndroidInjector;
}}

这是我的 AppComponent 类

@Singleton
@Component(modules = {
    AndroidInjectionModule.class,
    AppModule.class,
    DaoModule.class,
    MapperModule.class,
    UseCaseModule.class,
    ThreadingModule.class,
    UtilsModule.class,
    BroadcastReceiverBuilder.class,
    ActivityBuilder.class
    })
public interface AppComponent {

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

void inject(EasyDriveApplication app);}

我的 BroadcastReceiverBuilder 类看起来像

@Module
public abstract class BroadcastReceiverBuilder {

@Binds
@IntoMap
@BroadcastReceiverKey(LikeBroadcaseReceiver.class)
abstract AndroidInjector.Factory<? extends BroadcastReceiver> bindLikeBroadcastReceiver(LikeBroadcastReceiverComponent.Builder builder);}

这是我收到的错误

Error:(46, 10) error: com.presentation.dagger.broadcastReceiver.LikeBroadcastReceiverComponent.Builder cannot be provided without an @Provides-annotated method. com.presentation.dagger.broadcastReceiver.LikeBroadcastReceiverComponent.Builder is injected at com.presentation.dagger.application.module.BroadcastReceiverBuilder.bindLikeBroadcastReceiver(builder) java.util.Map,javax.inject.Provider>> is injected at dagger.android.DispatchingAndroidInjector.(injectorFactories) dagger.android.DispatchingAndroidInjector is injected at com.presentation.dagger.application.EasyDriveApplication.broadcastReceiverDispatchingAndroidInjector com.presentation.dagger.application.EasyDriveApplication is injected at com.presentation.dagger.application.AppComponent.inject(app)

Answer 1

我在尝试找到一种将依赖注入(inject)到 BroadcastReceiver 的方法时发现了此页面，对于遇到问题的其他人来说，这里是如何做到这一点

@Provides
fun providesBlah() : Blah = Blah()

class BlahBroadcastReceiver : BroadcastReceiver() {

@Inject
lateinit var blah: Blah

override fun onReceive(context: Context, intent: Intent) {
    (context.applicationContext as MyApplication).component().inject(this)
}

}