android - Dagger2错误:必须设置模块

我想在《匕首2》里做替身。但是，我无法找出这个编译错误：>...MyApplicationModule must be set它发生在我的LogInFragment中。如果有人试图解释这个错误。我真的很高兴。
这是myapplication类：

public class MyApplication extends Application {

    @Override
    public void onCreate() {
        super.onCreate();
        MyInjector.initialize(this);
    }
}

这是MyInjector类：

public enum MyInjector {
    INSTANCE;

    MyApplicationComponent myApplicationComponent;


    private MyInjector() {
    }

    public static void initialize(MyApplication myApplication) {

        MyApplicationComponent myApplicationComponent = DaggerMyApplicationComponent.builder()
                .myApplicationModule(new MyApplicationModule(myApplication))
                .build();
        INSTANCE.myApplicationComponent = myApplicationComponent;
    }

    public static MyApplicationComponent get() {
        return INSTANCE.myApplicationComponent;
    }

}

这是myapplicationcomponent类：

@Component (modules = {MyApplicationModule.class})
public interface MyApplicationComponent {

}

这是myapplicationmodule类

@Module
public class MyApplicationModule {

    private final MyApplication myApplication;

    public MyApplicationModule(MyApplication myApplication) {
        this.myApplication = myApplication;
    }

    @Singleton
    @Provides
    SharedPreferences providesSharedPreferences(Context context) {
        return context.getSharedPreferences("My_Pref", Context.MODE_PRIVATE);
    }

    @Singleton
    @Provides
    public Context providesMyApplicationContext() {
        return this.myApplication.getApplicationContext();
    }

    @Singleton
    @Provides
    public LocationManager providesLocationService(Context context) {
        return (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
    }

    @Singleton
    @Provides
    public MyDatabaseManager providesMyDatabaseManager(Context context) {
        return MyDatabaseManager.getInstance(context);
    }

    @Singleton
    @Provides
    public AccountSystemModel providesAccountSystemModel(Context context) {
        return MyDatabaseManager.getInstance(context);
    }

    @Singleton
    @Provides
    public MyApplication providesMyApplication(){
        return this.myApplication;
    }

}

这就是我试图缩小范围的地方
这是mylogin组件类

@Singleton
@Component(modules = {MyApplicationModule.class}, dependencies = {MyApplicationComponent.class})
public interface LogInComponent {
    LogInPresenter signInPresenter();
}

这就是Compilation Error发生的地方
这是MyLoginActivityFragment

@Override protected void injectDependencies() {
   logInComponent = DaggerLogInComponent.builder()
                    .myApplicationComponent(MyInjector.get())
                    .build();
}

最佳答案

你的LogInComponent依赖于包含MyApplicationComponent的MyApplicationModule。您不应该在LogInComponent中声明同一个模块。删除它，它将编译。
另外，通过将依赖项添加到组件接口，确保在LogInComponent中公开所需的依赖项，如下所示：

@Component (modules = {MyApplicationModule.class})
public interface MyApplicationComponent {
    Context context();
    SharedPreferences sharedPreferences();
    // ...
}

另一个技巧-如果您需要MyApplicationComponent中的所有依赖项，您可能需要阅读关于subcomponents的内容。

LoginComponent

android - Dagger2错误:必须设置模块