android设置系统语言，字体大小，字体样式导致widget控件失效

来源：互联网发布：淘宝售后说明编辑：程序博客网时间：2024/05/20 08:42

在setting中设置系统的字体大小，样式，以及系统语言等等会对widget产生影响，造成widget控件失效。

由于在setting中设置系统的字体大小，样式，以及系统语言等等系统发出 android.appwidget.action.APPWIDGET_UPDATE的广播，

此时的解决方案如下：

自定义的MyAppWidgetProvider继承于AppWidgetProvider，监听android.appwidget.action.APPWIDGET_UPDATE广播

在该类的onReceive()回调方法中，重新注册控件监听。

private void initListener(Context context){AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);int[] appWidgetIds = appWidgetManager.getAppWidgetIds(new ComponentName(context, MyAppWidgetProvider.class));RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.appwidget_myprovider);Intent intent;PendingIntent pendingIntent;ComponentName serviceName = new ComponentName(context, MyAppWidgetService.class);/** 刷新按钮 */intent = new Intent(MyAppWidgetService.MSG_REFRESH);intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, appWidgetIds);intent.setComponent(serviceName);pendingIntent = PendingIntent.getService(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);views.setOnClickPendingIntent(R.id.appwidget_refresh_new, pendingIntent);/** 前一页 */intent = new Intent(MyAppWidgetService.MSG_PRE);intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, appWidgetIds);intent.setComponent(serviceName);pendingIntent = PendingIntent.getService(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);views.setOnClickPendingIntent(R.id.appwidget_last, pendingIntent);/** 后一页 */intent = new Intent(MyAppWidgetService.MSG_NEXT);intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, appWidgetIds);intent.setComponent(serviceName);pendingIntent = PendingIntent.getService(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);views.setOnClickPendingIntent(R.id.appwidget_next, pendingIntent);appWidgetManager.updateAppWidget(appWidgetIds, views);}

@Overridepublic void onReceive(Context context, Intent intent) {super.onReceive(context, intent);initListener(context);}