android - RemoteViewsFactory grantUriPermission来获取数据

有一个我要用RemoteViewsService.RemoteViewsFactory填充的具有Listview的AppWidget。

我有以下错误



如果我在 list 中导出ProviderLTD(我的内容提供商)，则可以使用，但我想避免导出它。

另一种解决方案是grantUriPermission()。我在 list 中将grantUriPermissions设置为true，但是现在我不明白我必须在代码中的何处授予权限。

public class Widget3pService extends RemoteViewsService {
       @Override
        public RemoteViewsFactory onGetViewFactory(Intent intent) {
           return new StackRemoteViewsFactory(this.getApplicationContext(), intent);
        }
    }


    class StackRemoteViewsFactory implements RemoteViewsService.RemoteViewsFactory {
        private List<ObjW3Task> mWidgetItems = new ArrayList<ObjW3Task>();
        private Context mContext;
        private int mAppWidgetId;

        public StackRemoteViewsFactory(Context context, Intent intent) {
            mContext = context;
            mAppWidgetId = intent.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID);
        }

        public RemoteViews getViewAt(int position) {
            // use mWidgetItems to populate ListView
            // fillInIntent for listeners
            return myRemoteViews;
        }

        public void onDataSetChanged() {
            mWidgetItems = new ArrayList<ObjW3Task>();
            // create mWidgetItems by accessing my ContentProvider class
        }
}

最佳答案

不知道这是否仍然有用；通过设置“android:exported = true”，我发现它对我有效:

<provider android:name="WeatherDataProvider" android:exported="true">

看到这个:
Android Permission denial in Widget RemoteViewsFactory for Content