小编dom*_*nus的帖子

我开始使用Dagger 2并遇到一个奇怪的问题,看起来像是一个bug.

我有3个模块,它们组成一个子组件,后者又扩展/加载更高级别的组件.

子组件非常简单:只需组合模块和单个注入点:

@Singleton
@Subcomponent(
        modules = {
                NavigationDrawerModule.class,
                NavigationListModule.class,
                SwitcherModule.class
        }
)
public interface NavigationDrawerComponent {


    NavigationDrawerFragment inject(NavigationDrawerFragment object);

}

第一个模块看起来像这样 - 它提供了一般的片段级依赖关系:

@Module
public class NavigationDrawerModule {

    private final Activity activity;
    private final View rootView;
    private final LoaderManager loaderManager;

    public NavigationDrawerModule(Activity activity, View rootView, LoaderManager loaderManager) {
        this.activity = activity;
        this.rootView = rootView;
        this.loaderManager = loaderManager;
    }

    @Provides @Singleton EventBus provideLocalBus() {
        return EventBus.builder().build();
    }

    @Provides @Singleton View provideViewRoot() {
        return rootView;
    }

    @Provides @Singleton LoaderManager provideLoaderManager() …

GreenDao是否支持多列的唯一约束？相当于以下内容:

create table projects (
  _id integer primary key autoincrement,
  project_type text,
  name text,
  unique (project_type, name)
);