MPMediaPicker does not show
问题 In a sample app that I'm making for Apple, I cannot get the MPMediaPickerController to show. I've already added the NSAppleMusicUsageDescription key in the info.plist file, and this is what makes my post different from any other answers found online. I've also tried adding CoreMedia.framework. I'm using XCode 10 beta 4 The app never asks for permissions to access the media library, and when I present the picker, the mediaPickerDidCancel method is called right away. What am I doing wrong?