Question

所有

我写了一个服务来更新系统状态，我使用startForeground将服务放到前台，同时添加一个通知给它。在通知中，我使用remoteView来获得三个带有三个OnClickPendingIntent的图像。其中一个是发送回服务，并执行通知更新代码。

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;

在收到意图后更新通知的代码：

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

 notificationManager.notify(NOTIFICATION_ONGOING, notify);

我的问题是：在调用我的更新功能后，通知图像实际上已经改变了;然而，通知面板仍然存在!! 它不会像启动活动那样消失。

我是否可以为通知，pendingIntent设置一个标志，或者在接收服务意图后我可以使用哪些API调用？

Answer 1

在其他地方找到我的问题：
1. Android: How to collapse status bar on android 4.2? 2. Preventing status bar expansion

首先，将使用权限行添加到AndroidManifest.xml

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

第二，使用以下代码使其起作用：

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){}

这很黑，但确实有效。

如何在通知中向服务发送PendingIntent后隐藏通知面板

1 个答案: