当应用程序在后台时，可以在推送通知中执行操作

Question

How to get action in Push Notification when App in background?. I am using this functionality in Android Oreo getting some issue when app in background.

Answer 1

I'm using this in background services. I'm tested that in emulator, but not in real device. Check does this will work for you.

NotificationCompat.Builder builder = ...;
    Intent intent = new Intent(context, YourActivity.class);
    intent.putExtra(you can put extras);
    intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    intent.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP | Intent.FLAG_ACTIVITY_CLEAR_TOP);
    PendingIntent contentIntent = PendingIntent.getActivity(context, 0, intent,
            0);
    builder.setContentIntent(contentIntent);

Also, if you'd like to show an activity, when device is locked, put this in your activity onCreate(), this should work. One thing, when this doesn't work, is when a incoming/outgoing call screen is shown

super.onCreate(savedInstanceState);
    getWindow().addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
    setContentView(...);