如何在蜂窩/ ics上打開應用程序部件選取器？

Question

我的應用程序具有可顯示可添加到主屏幕的應用程序小部件的開始活動。

當用戶點擊該應用程序窗口小部件時，應用程序應發送意圖打開窗口小部件列表。

但我找不到任何打開啓動器與小部件列表選擇任何意圖。可能嗎？

Answer 1

static final String EXTRA_CUSTOM_WIDGET = "custom_widget"; 
static final String SEARCH_WIDGET = "search_widget"; 
void pickappWidget(){ 
    int appWidgetId = Launcher.this.mAppWidgetHost.allocateAppWidgetId(); 

    Intent pickIntent = new Intent(AppWidgetManager.ACTION_APPWIDGET_PICK); 
    pickIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId); 
    // add the search widget 
    ArrayList<AppWidgetProviderInfo> customInfo = 
      new ArrayList<AppWidgetProviderInfo>(); 
    AppWidgetProviderInfo info = new AppWidgetProviderInfo(); 
    info.provider = new ComponentName(getPackageName(), "XXX.YYY"); 
    info.label = getString(R.string.group_widgets); 
    info.icon = R.drawable.ic_allapps; 
    customInfo.add(info); 
    pickIntent.putParcelableArrayListExtra(
      AppWidgetManager.EXTRA_CUSTOM_INFO, customInfo); 
    ArrayList<Bundle> customExtras = new ArrayList<Bundle>(); 
    Bundle b = new Bundle(); 
    b.putString(EXTRA_CUSTOM_WIDGET, SEARCH_WIDGET); 
    customExtras.add(b); 
    pickIntent.putParcelableArrayListExtra(
      AppWidgetManager.EXTRA_CUSTOM_EXTRAS, customExtras); 
    // start the pick activity 
    startActivityForResult(pickIntent, REQUEST_PICK_APPWIDGET); 
} 

，並在你的onActivityResult函數，過程從部件選擇對話框消息retur

protected void onActivityResult(int requestCode, int resultCode, Intent data) { 
    mWaitingForResult = false; 
    if (resultCode == RESULT_OK && mAddItemCellInfo != null) { 
     switch (requestCode) { 
      case REQUEST_PICK_APPWIDGET: 
       addAppWidget(data); 
       break; 
     } 
} 


void addAppWidget(Intent data) { 

    int appWidgetId = data.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1); 
    AppWidgetProviderInfo appWidget = mAppWidgetManager.getAppWidgetInfo(appWidgetId); 

    if (appWidget.configure != null) { 
     // Launch over to configure widget, if needed 
     Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_CONFIGURE); 
     intent.setComponent(appWidget.configure); 
     intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId); 

     startActivityForResult(intent, REQUEST_CREATE_APPWIDGET); 
    } else { 
     // Otherwise just add it 
     onActivityResult(REQUEST_CREATE_APPWIDGET, Activity.RESULT_OK, data); 
    } 
}