Android通知栏点击通知消失

直接上代码：

private void showNotification() {    int icon = R.drawable.ic_launcher; //通知图标      CharSequence tickerText = "标题"; //状态栏(Status Bar)显示的通知文本提示      long when = System.currentTimeMillis(); //通知产生的时间，会在通知信息里显示    Notification notification = new Notification();    notification.flags = Notification.FLAG_AUTO_CANCEL;    notification.icon = icon;    notification.tickerText = tickerText;    notification.when = when;    Intent appIntent = new Intent(Intent.ACTION_MAIN);        //appIntent.setAction(Intent.ACTION_MAIN);        appIntent.addCategory(Intent.CATEGORY_LAUNCHER);        appIntent.setComponent(new ComponentName(getActivity().getPackageName(), getActivity().getPackageName() + "." + getActivity().getLocalClassName()));         appIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK| Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);//关键的一步，设置启动模式            NotificationManager notificationManager = (NotificationManager) getActivity().getSystemService(Context.NOTIFICATION_SERVICE);    PendingIntent pendingIntent = PendingIntent.getActivity(getActivity(), 0, appIntent, 0);    notification.setLatestEventInfo(getActivity(), "标题",     "内容"),     pendingIntent);        notificationManager.notify(1, notification);}