我得到一个错误转换CFString.错误信息是：
Cannot assign a value of type ‘[CFString]’ to a value of type ‘[String].
怎么修？
picker.sourceType = UIImagePickerControllerSourceType.Camera picker.allowsEditing = false picker.mediaTypes = [kUTTypeImage] //Error Message : Cannot assign a value of type '[CFString]' to a value of type '[String]' picker.delegate = self picker.modalPresentationStyle = .Popover presentViewController(picker,animated: true,completion: nil)//
