RemoteViewsFactory grantUriPermission用于获取数据

Question

有一个带有Listview的AppWidget我想用RemoteViewsService.RemoteViewsFactory填充.

我有以下错误

E/AndroidRuntime(1203):java.lang.SecurityException:Permission Denial:读取com.crbin1.myapp.data.ProviderLTD uri内容://com.crbin1.myapp.data.ProviderLTD/TB_WIDGET3P来自pid = 413,uid = 10013要求提供者被导出,或者grantUriPermission()

如果我在清单中导出ProviderLTD(我的内容提供商),它可以工作,但我想避免导出它.

另一个解决方案是grantUriPermission().我在清单中将grantUriPermissions设置为true,但现在我不明白我的代码中我必须授予权限.

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
        }
}

Answer 1

不确定这是否仍然相关；我发现它可以通过设置“android:exported = true”对我的起作用：

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

请参阅： Android Permission denial in Widget RemoteViewsFactory for Content