在Android 4.4.2中,点击我的前台服务通知会杀死我的进程。
在旧设备上(三星Tab 2运行4.2.2),我可以从最近的任务中滑动活动,仍然有我的Service
在后台运行良好。然后当我点击Notification
时,我的应用程序Activity
又很高兴地启动了。
然而,一旦我在运行4.4.2的Nexus 7上点击通知,我的进程就会被杀死(直到点击在后台愉快地运行)。PendingIntent
似乎根本不开火,或者至少,它没有击中BroadcastReceiver
的第一行:
05-21 16:17:38.939: I/ActivityManager(522): Killing 2268:com.test.student/u0a242 (adj 0): remove task
我已经运行了这个答案,并使用命令dumpsys activity proccesses
,我已经确认我的服务在前台正确运行。
那么,点击这个通知会杀死我的进程是什么呢?
将服务移动到前台所涉及的代码如下:
服务:@Override
public int onStartCommand(Intent intent, int flags, int startId) {
Log.i("NativeWrappingService", "Starting Service...");
startForeground(NotificationIcon.NOTIFICATION_STUDENT, NotificationManager.getStudentIcon(this).getNotification());
return super.onStartCommand(intent, flags, startId);
}
NotificationIcon:(getStudentIcon(this).getNotification()
)
public Notification getNotification() {
Builder mBuilder = new Builder(mContext);
if(mSmallIcon != -1) mBuilder.setSmallIcon(mSmallIcon);
if(mLargeIcon != null) mBuilder.setLargeIcon(mLargeIcon);
if(mTitle != null) mBuilder.setContentTitle(mTitle);
if(mSubTitle != null) mBuilder.setContentText(mSubTitle);
if(mSubTitleExtra != null) mBuilder.setContentInfo(mSubTitleExtra);
mBuilder.setOngoing(mOngoing);
mBuilder.setAutoCancel(mAutoCancel);
mBuilder.setContentIntent(getPendingIntent(mContext, mAction, mBundle, mActivity));
return mBuilder.build();
}
private PendingIntent getPendingIntent(Context context, String action, Bundle extras, String activity) {
Intent newIntent = new Intent(context, BroadcastToOrderedBroadcast.class);
Bundle bundle;
if(extras != null) bundle = extras;
else bundle = new Bundle();
if(activity != null && !activity.equalsIgnoreCase("")) {
BundleUtils.addActivityToBundle(bundle, activity);
}
BundleUtils.addActionToBundle(bundle, action);
newIntent.putExtras(bundle);
return PendingIntent.getBroadcast(NativeService.getInstance(), mNotificationID, newIntent, PendingIntent.FLAG_UPDATE_CURRENT);
}
将FLAG_RECEIVER_FOREGROUND标志添加到通知中使用的PendingIntent中,以便允许服务以前台优先级运行。
Intent newIntent = new Intent(context, BroadcastToOrderedBroadcast.class);
newIntent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND);
return PendingIntent.getBroadcast(NativeService.getInstance(), mNotificationID, newIntent, PendingIntent.FLAG_UPDATE_CURRENT);
这是这些信息的来源:Android问题跟踪工具。