远程刷新界面 service中 RemoteViews textview
private void setWidgetText() {
RemoteViews views = new RemoteViews(getPackageName(),R.layout.music_widget);
views.setTextViewText(R.id.musicname, info);
ComponentName thisWidget = new ComponentName(this, MusicWidget.class);
AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(this);
appWidgetManager.updateAppWidget(thisWidget, views);
}