Context.startForegroundService然后没有调用Service.startForeground [英] Context.startForegroundService did not then call Service.startForeground

问题描述

这是我的BroadcastReciever类.该课程负责启动电话状态.

代码;

public class BroadCastRecieverBoot extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent ıntent) {
        if(Intent.ACTION_BOOT_COMPLETED.equals(ıntent.getAction()))
        {
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
                context.startForegroundService(new Intent(context, MyService.class));
                context.startForegroundService(new Intent(context, GPSTracker.class));
            } else {
                context.startService(new Intent(context, MyService.class));
                context.startService(new Intent(context, GPSTracker.class));
            }
        }
    }
}

我收到此错误;

     android.app.RemoteServiceException: Context.startForegroundService() did not then call Service.startForeground()


    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1792)

at android.os.Handler.dispatchMessage(Handler.java:106)                                            

        at android.os.Looper.loop(Looper.java:164)                                                   

        at android.app.ActivityThread.main(ActivityThread.java:6523)                                        

        at java.lang.reflect.Method.invoke(Native Method)                                                   

        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)

        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:857)

它现在不适用于Android Oreo.我不知道那是什么错误.

解决方案

根据Android 8.0的官方文档 ="noreferrer"> startForeground(int id，通知通知).

注意:定位到API Build.VERSION_CODES.P或更高版本的应用必须请求权限Manifest.permission.FOREGROUND_SERVICE才能使用此API.

It's mine BroadcastReciever class. The class working on Boot phone status.

Code ;

public class BroadCastRecieverBoot extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent ıntent) {
        if(Intent.ACTION_BOOT_COMPLETED.equals(ıntent.getAction()))
        {
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
                context.startForegroundService(new Intent(context, MyService.class));
                context.startForegroundService(new Intent(context, GPSTracker.class));
            } else {
                context.startService(new Intent(context, MyService.class));
                context.startService(new Intent(context, GPSTracker.class));
            }
        }
    }
}

I get This Error ;

     android.app.RemoteServiceException: Context.startForegroundService() did not then call Service.startForeground()


    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1792)

at android.os.Handler.dispatchMessage(Handler.java:106)                                            

        at android.os.Looper.loop(Looper.java:164)                                                   

        at android.app.ActivityThread.main(ActivityThread.java:6523)                                        

        at java.lang.reflect.Method.invoke(Native Method)                                                   

        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)

        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:857)

It doesn't work on Android Oreo now. I don't know what is the mistake of that.

解决方案

According to official document of Android 8.0 Background Execution Limits

Android 8.0 introduces the new method startForegroundService() to start a new service in the foreground. After the system has created the service, the app has five seconds to call the service's startForeground() method to show the new service's user-visible notification. If the app does not call startForeground() within the time limit, the system stops the service and declares the app to be ANR.

So, make sure you have started ongoing notification by calling startForeground (int id, Notification notification) in the onCreate() method of your service.

Note: Apps targeting API Build.VERSION_CODES.P or later must request the permission Manifest.permission.FOREGROUND_SERVICE in order to use this API.

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