如何在通知中向服务发送待处理意图后隐藏通知面板

Question

All

我编写一个服务来更新系统状态，并使用 startForeground 将服务置于前台，并向其添加通知。在通知中，我使用 remoteView 拥有三个图像和三个 OnClickPendingIntent。其中之一是发送回服务，并执行通知更新代码。

用于创建通知的代码：

 Intent intentApp = new Intent(this,ScreenOffWidgetConfigure.class);
 intentApp.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
 PendingIntent piApp = PendingIntent.getActivity(this, 0, intentApp, 0);
 Intent intentOnOff = new Intent(CV.SERVICE_INTENT_ACTION);
 intentOnOff.putExtra(CV.SERVICEACTION, CV.SERVICEACTION_TOGGLE);
 PendingIntent piOnOff = PendingIntent.getService(this, 0, intentOnOff, 0);
 Intent intentScreenOff = new Intent(CV.SERVICE_INTENT_ACTION);
 intentScreenOff.putExtra(CV.SERVICEACTION, CV.SERVICEACTION_SCREENOFF);
 PendingIntent piScreenOff = PendingIntent.getService(this, 1, intentScreenOff, 0);
 // setup remoteview
 RemoteViews remoteViews = new RemoteViews(getPackageName(), R.layout.layout_notification);
 remoteViews.setOnClickPendingIntent(R.id.image_logo, piApp);
 remoteViews.setOnClickPendingIntent(R.id.image_status, piOnOff);
 remoteViews.setOnClickPendingIntent(R.id.image_screenoff, piScreenOff);
 if(CV.getPrefChargingOn(this) && CV.isPlugged(this))
 {
     remoteViews.setImageViewResource(R.id.image_status,R.drawable.widget_charging_on);
 }
 else
 {
     if(CV.getPrefAutoOnoff(this))
     remoteViews.setImageViewResource(R.id.image_status,R.drawable.widget_on);
     else
     remoteViews.setImageViewResource(R.id.image_status,R.drawable.widget_off);
 }
 // build the notification
 Notification noti = new Notification.Builder(this)
 .setContent(remoteViews)
 .setSmallIcon(R.drawable.ic_launcher)
 .setOngoing(true)
 .build();
 return noti;

收到意向后更新通知的代码：

 Notification notify = createNotification();
 final NotificationManager notificationManager = (NotificationManager) getApplicationContext()
                        .getSystemService(getApplicationContext().NOTIFICATION_SERVICE);
 notificationManager.notify(NOTIFICATION_ONGOING, notify);

我的

问题是：调用我的更新函数后，通知图像实际上发生了变化;但是，通知面板仍然存在！！它不会像启动活动时那样消失。

是否有我可以为通知、挂起意图设置的标志，或者在服务中收到意图后可以使用哪些 API 调用？

Answer 1

在其他地方找到我的问题答案：
1. 安卓：如何在安卓 4.2 上折叠状态栏？2. 防止状态栏扩展

首先，向 Android 清单添加使用权限行.xml

<uses-permission android:name="android.permission.EXPAND_STATUS_BAR"/>

其次，使用以下代码使其工作：

try
{
    Object service  = getSystemService("statusbar");
    Class<?> statusbarManager = Class.forName("android.app.StatusBarManager");
    if (Build.VERSION.SDK_INT <= 16) 
    {
        Method collapse = statusbarManager.getMethod("collapse");
        collapse.setAccessible(true);
        collapse.invoke(service);
    } 
    else 
    {
        Method collapse2 = statusbarManager.getMethod("collapsePanels");
        collapse2.setAccessible(true);
        collapse2.invoke(service);
    }
}catch(Exception ex){}

这很笨拙，但它确实有效。