IOS 8 iPad App Crashes When UIActivityViewController Is Called

Question

When a UIActivityViewController is called on the iPhone in this app, it works perfectly, but when called on a iPad, the app crashes. Below is the code I used:

Answer 1

Swift 5:

Check if the device is iPhone or iPad and based on that add a sourceView and present the activityController

let activity = UIActivityViewController(activityItems: [self], applicationActivities: nil)
if UIDevice.current.userInterfaceIdiom == .phone {
    UIApplication.topViewController?.present(activity, animated: true, completion: nil)
} else {
    activity.popoverPresentationController?.sourceView = UIApplication.topViewController!.view
    UIApplication.topViewController?.present(activity, animated: true, completion: nil)
}