Rustam Gilyaev

Hi, How do you add integration with SDKs that deliver the result to `onActivityResult` method of fragment/activity? For example if you'd like to implement Authentication via Facebook SDK you would:...

[Android 8+] Crash when the app is in background

4

Hi @eddieowens, In Android 8 and up it's not possible to start services when your app is in background. [Proof](https://developer.android.com/about/versions/oreo/android-8.0-changes.html#back-all) If you try to do so, you get an error....

[Bug]: Fatal Exception: java.lang.NullPointerException when calling `com.onesignal.OneSignal$OSNotificationOpenedHandler.notificationOpened()`

2

### What happened? I'm observing some crash reports in Firebase Crashlytics with the following stack trace: ``` Fatal Exception: java.lang.NullPointerException: Attempt to invoke interface method 'void com.onesignal.OneSignal$OSNotificationOpenedHandler.notificationOpened(com.onesignal.OSNotificationOpenedResult)' on a null...