如果fragment实现自定义接口，则Dagger会抛出错误

@Component(modules = {YourModule.class})
interface YourComponent {
    void inject(YourFragment fragment);

    @Component.Builder
    interface Builder {
        @BindsInstance Builder fragment(YourFragment fragment);
        YourComponent build();
    }
}

@Scope
@Retention(RetentionPolicy.RUNTIME)
public @interface FragmentScope {}

@FragmentScope
@Component(modules = {YourModule.class})
interface YourComponent {
    void inject(YourFragment fragment);
}

public class YourFragment extends Fragment {
    private YourComponent component;

    @Override
    public void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        component = DaggerYourComponent.builder()
                .yourModule(new YourModule())
                .fragment(this)
                .build();
        component.inject(this);
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        component = null;
    }
}