application openURL in Swift

Question

I am having an issue with the Appdelegate method OpenURL.

I have setup my Imported UTI\'s and Document Type. But when opening my app from a mail attachment, the app

Answer 1

This is fairly typical of a signature mismatch between the method signatures automatically generated by the Swift compiler and the actual signature. It happens when you try to pass nil from Objective-C into a Swift explicitly unwrapped optional. Change the annotation parameter to be implicitly unwrapped and you should be gtg.