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;
}
}