当应用程序在后台或被杀死时，如何在收到通知时启动我的应用程序或活动？

Question

I have a requirement for my app. I have to launch my app when I received a Notification (specific notification type) when my app is in background or killed state. I didn't find any solution for background. I'm using FCM for notifications.

Actually my app support calling functionality from web side to mobile and when admin initiate call then I received a FCM push notification. when my app is foreground than it's work fine but when it is in background, than I received notification but for launch app I have to click on notification. but I need to launch app immediately. Have any one have any solution?

Answer 1

Try this one.

@Override
public void onMessageReceived(RemoteMessage remoteMessage) {
    // Check if message contains a notification payload.
    if (remoteMessage.getNotification() != null) {
        startActivity(new Intent(this, MainActivity.class));
    }
}

Answer 2

Use your app server and FCM server API: Set the data key only. Can be either collapsible or non-collapsible.

If you are sending the notification from console, then use the particular key to send the notification from the Advanced Option features.

   if (getIntent().getExtras() != null) {
     // Call your NotificationActivity here..
     Intent intent = new Intent(MainActivity.this, NotificationActivity.class);
     startActivity(intent);
    }