Android GCM - WakefulBroadcastReceiver.startWakefulService 由于 IllegalStateException 8.0 而崩溃

Question

我们刚刚将应用程序的目标 api 迁移到 Android API 27 (8.1)，当通知到达时它一直崩溃，特别是当应用程序在后台时。

java.lang.RuntimeException: Unable to start receiver <package>.service.GCMBroadcastReceiver: java.lang.IllegalStateException: Not allowed to start service Intent { act=com.google.android.c2dm.intent.RECEIVE flg=0x1000010 pkg=<package> cmp=<package>/.service.GCMIntentService (has extras) }: app is in background uid UidRecord{b248a9d u0a85 RCVR bg:+1m4s53ms idle change:uncached procs:1 seq(0,0,0)}
    at android.app.ActivityThread.handleReceiver(ActivityThread.java:3194)
    at android.app.ActivityThread.-wrap17(Unknown Source:0)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1672)
    at android.os.Handler.dispatchMessage(Handler.java:106)
    at android.os.Looper.loop(Looper.java:164)
    at android.app.ActivityThread.main(ActivityThread.java:6494)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
 Caused by: java.lang.IllegalStateException: Not allowed to start service Intent { act=com.google.android.c2dm.intent.RECEIVE flg=0x1000010 pkg=<package> cmp=<package>/.service.GCMIntentService (has extras) }: app is in background uid UidRecord{b248a9d u0a85 RCVR bg:+1m4s53ms idle change:uncached procs:1 seq(0,0,0)}
    at android.app.ContextImpl.startServiceCommon(ContextImpl.java:1521)
    at android.app.ContextImpl.startService(ContextImpl.java:1477)
    at android.content.ContextWrapper.startService(ContextWrapper.java:650)
    at android.support.v4.content.WakefulBroadcastReceiver.startWakefulService(WakefulBroadcastReceiver.java:99)
    at <package>.service.GCMBroadcastReceiver.onReceive(GCMBroadcastReceiver.java:32)
    at android.app.ActivityThread.handleReceiver(ActivityThread.java:3187)
    at android.app.ActivityThread.-wrap17(Unknown Source:0) 
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1672) 
    at android.os.Handler.dispatchMessage(Handler.java:106) 
    at android.os.Looper.loop(Looper.java:164) 
    at android.app.ActivityThread.main(ActivityThread.java:6494) 
    at java.lang.reflect.Method.invoke(Native Method) 
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438) 
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807) 

Answer 1

我是这样解决问题的:

为什么会出现这个问题？

Due to the new Background Execution Limits of Android 8 and you should not start services background.

我是如何修复它的

将您的 GCMIntetService 迁移到 JobIntentService 而不是 IntentService。

请按照以下步骤操作:1) 为您的服务添加 BIND_JOB_SERVICE 权限:

<service android:name=".service.GCMIntentService"
        android:exported="false"
        android:permission="android.permission.BIND_JOB_SERVICE"/>

2) 在您的 GCMIntentService 中，使用 android.support.v4.app.JobIntentService 并覆盖 onHandleWork 而不是扩展 IntentService然后删除 onHandleIntent 中的 override。

public class GCMIntentService extends JobIntentService {

    // Service unique ID
    static final int SERVICE_JOB_ID = 50;

    // Enqueuing work in to this service.
    public static void enqueueWork(Context context, Intent work) {
        enqueueWork(context, GCMIntentService.class, SERVICE_JOB_ID, work);
    }

    @Override
    protected void onHandleWork(@NonNull Intent intent) {
        onHandleIntent(intent);
    }

    private void onHandleIntent(Intent intent) {
        //Handling of notification goes here
    }
}

最后，在您的 GCMBroadcastReceiver 中，将您的 GCMIntentService 加入队列。

public class GCMBroadcastReceiver extends WakefulBroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        // Explicitly specify that GcmIntentService will handle the intent.
        ComponentName comp = new ComponentName(context.getPackageName(),
                GCMIntentService.class.getName());
        // Start the service, keeping the device awake while it is launching.
        // startWakefulService(context, (intent.setComponent(comp)));

        //setResultCode(Activity.RESULT_OK);

        GCMIntentService.enqueueWork(context, (intent.setComponent(comp)));
    }
}

在我们将目标 sdk 更新到 27 后，这个实现对我有用，我希望它对你有用。