Warning while setting up PushNotificationIOS on foreground in React Native

Question

I am getting the following warning on Xcode while setting up foreground push notification on IOS:

Assigning to 'id<UNUserNotificationCenterDelegate> _Nullable' 
from incompatible type 'AppDelegate *const __strong'

this warning appears on the last line of this snippet:

// Define UNUserNotificationCenter
  UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
  center.delegate = self;

My app compiles and runs as expected. I have no experience with objective-c, so I have no idea what this is about. How can I solve it?

Answer 1

I had the same issue and solved it by adding UNUserNotificationCenterDelegate to my AppDelegate interfaces:

@interface AppDelegate : UIResponder <UIApplicationDelegate,UNUserNotificationCenterDelegate>