Android 关于在sdk version7上设置pacake的启动小部件

我正在做一个类似adw Launcher的应用程序启动程序，我在>2.1上运行我的应用程序非常好 但当2.2一切正常时，我的代码是：

case AddAdapter.ITEM_APPWIDGET: {
            int appWidgetId =     Launcher.this.mAppWidgetHost.allocateAppWidgetId();

            Intent pickIntent = new Intent(AppWidgetManager.ACTION_APPWIDGET_PICK);

            pickIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
            // start the pick activity
            startActivityForResult(pickIntent, REQUEST_PICK_APPWIDGET);
            /*if(Build.VERSION.SDK_INT<8)
            {
                Log.I("aa","ddddd");
                Intent pickIntent = new Intent(); //AppWidgetPickActivity
                pickIntent.setClassName("com.android.settings", "com.android.settings.AppWidgetPickActivity");
                //pickIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);

                startActivityForResult(pickIntent, REQUEST_PICK_APPWIDGET);

            }*/
            break;
        }

case AddAdapter.ITEM\u APPWIDGET:{
int-appWidgetId=Launcher.this.mAppWidgetHost.allocateAppWidgetId（）；
Intent pickIntent=新意图（AppWidgetManager.ACTION\u APPWIDGET\u PICK）；
pickIntent.putExtra（AppWidgetManager.EXTRA_APPWIDGET_ID，appWidgetId）；
//启动拾取活动
startActivityForResult（pickIntent、REQUEST\u PICK\u APPWIDGET）；
/*如果（Build.VERSION.SDK_INT