RoboGuice自定義模塊應用上下文

Question

如何在自定義模塊中獲取應用上下文？這裏是我的模塊代碼：

public class MyModule extends AbstractModule { 
    @Override 
    @SuppressWarnings("unchecked") 
    protected void configure() { 
     // Package Info 
     try { 
      final PackageInfo info = application.getPackageManager().getPackageInfo(
        application.getPackageName(), PackageManager.GET_META_DATA); 
      bind(PackageInfo.class).toInstance(info); 
     } catch (PackageManager.NameNotFoundException e) { 
      throw new RuntimeException(e); 
     } 
    } 
} 

我想獲取應用程序的元數據。 PackageInfo的默認模塊版本沒有元數據，因此我需要自定義綁定。

Answer 1

只是把它注射在構造函數中

public final class MyModule extends AbstractModule 
{ 
    private final Context context; 

    @Inject 
    public MyModule(final Context context) 
    { 
     super(); 
     this.context = context; 
    } 

    @Override 
    @SuppressWarnings("unchecked") 
    protected void configure() { 
     // Package Info 
     try { 
      final PackageInfo info = context.getPackageManager().getPackageInfo(
       context.getPackageName(), PackageManager.GET_META_DATA); 
      bind(PackageInfo.class).toInstance(info); 
     } catch (PackageManager.NameNotFoundException e) { 
      throw new RuntimeException(e); 
     } 
    } 

}