“无法添加小部件”在Fragment中
我在添加Fragment中的小部件时遇到问题。 这里是一些硬编码添加3个示例小部件：
@Override public View onCreateView（LayoutInflater inflater，ViewGroup container，Bundle savedInstanceState）{//膨胀此片段的布局View root = inflater.inflate（R.layout.fragment_widget，container，false）;
mainlayout = (ViewGroup) root.findViewById(R.id.main_layout);
mAppWidgetManager = AppWidgetManager.getInstance(getContext());
mAppWidgetHost = new AppWidgetHost(getContext(), R.id.APPWIDGET_HOST_ID);
addButton = (Button) root.findViewById(R.id.bt_add);
removeButton = (Button) root.findViewById(R.id.bt_remove);
addButton.setOnClickListener(this);
removeButton.setOnClickListener(this);
AppWidgetProviderInfo appWidgetInfo = mAppWidgetManager.getAppWidgetInfo(9);
Log.e(TAG, "createWidget: " + Integer.toString(9) + appWidgetInfo);
AppWidgetHostView hostView = mAppWidgetHost.createView(getActivity(), 9, appWidgetInfo);
hostView.setAppWidget(9, appWidgetInfo);
mainlayout.addView(hostView);
appWidgetInfo = mAppWidgetManager.getAppWidgetInfo(11);
Log.e(TAG, "createWidget: " + Integer.toString(11) + appWidgetInfo);
hostView = mAppWidgetHost.createView(getActivity(), 11, appWidgetInfo);
hostView.setAppWidget(11, appWidgetInfo);
mainlayout.addView(hostView);
appWidgetInfo = mAppWidgetManager.getAppWidgetInfo(10);
Log.e(TAG, "createWidget: " + Integer.toString(10) + appWidgetInfo);
hostView = mAppWidgetHost.createView(getActivity(), 10, appWidgetInfo);
hostView.setAppWidget(10, appWidgetInfo);
mainlayout.addView(hostView);
mAppWidgetHost.startListening();
return root;
}
首先是好的，第二个应该是天气小部件，但它只显示“无法添加小部件”，最后一个不加载电子邮件。
当我在Activity中这样做时，一切正常。 我应该怎么做才能使它在碎片中工作？
