SherlockActivity也可以用依赖注入的方法：

场景：

    一个Activity必须继承RoboActivity才可以使用依赖注入。

若一个Activity已经继承了别的Activity了。比如SherlockActivity 如何才能使用依赖注入呢？

Roboguice提供了以下方法：

public class LabaRoboActivity extends SherlockActivity implements RoboContext {

  protected EventManager eventManager;
  protected HashMap<Key<?>, Object> scopedObjects = new HashMap<Key<?>, Object>();

  @Inject
  ContentViewListener ignored; // BUG find a better place to put this

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    final RoboInjector injector = RoboGuice.getInjector(this);
    eventManager = injector.getInstance(EventManager.class);
    injector.injectMembersWithoutViews(this);
    super.onCreate(savedInstanceState);
    eventManager.fire(new OnCreateEvent(this,savedInstanceState));
  }

  protected void onRestart() {
    super.onRestart();
    eventManager.fire(new OnRestartEvent(this));
  }

  @Override
  protected void onStart() {
    super.onStart();
    eventManager.fire(new OnStartEvent(this));
  }

  @Override
  protected void onResume() {
    super.onResume();
    eventManager.fire(new OnResumeEvent(this));
  }

  @Override
  protected void onPause() {
    super.onPause();
    eventManager.fire(new OnPauseEvent(this));
  }

  @Override
  protected void onNewIntent(Intent intent) {
    super.onNewIntent(intent);
    eventManager.fire(new OnNewIntentEvent(this));
  }

  @Override
  protected void onStop() {
    try {
      eventManager.fire(new OnStopEvent(this));
    } finally {
      super.onStop();
    }
  }

  @Override
  protected void onDestroy() {
    try {
      eventManager.fire(new OnDestroyEvent(this));
    } finally {
      try {
        RoboGuice.destroyInjector(this);
      } finally {
        super.onDestroy();
      }
    }
  }

  @Override
  public void onConfigurationChanged(Configuration newConfig) {
    final Configuration currentConfig = getResources().getConfiguration();
    super.onConfigurationChanged(newConfig);
    eventManager.fire(new OnConfigurationChangedEvent(this,currentConfig, newConfig));
  }

  @Override
  public void onContentChanged() {
    super.onContentChanged();
    RoboGuice.getInjector(this).injectViewMembers(this);
    eventManager.fire(new OnContentChangedEvent(this));
  }

  @Override
  protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    eventManager.fire(new OnActivityResultEvent(this,requestCode,resultCode,data));
  }

  @Override
  public Map<Key<?>, Object> getScopedObjectMap() {
    return scopedObjects;
  }
}

来自为知笔记(Wiz)

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