修正iOS11失敗的問題
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| extension UIBarButtonSystemItem { | |
| func image() -> UIImage? { | |
| let tempItem = UIBarButtonItem(barButtonSystemItem: self, | |
| target: nil, | |
| action: nil) | |
| // add to toolbar and render it | |
| let bar = UIToolbar() | |
| bar.setItems([tempItem], | |
| animated: false) | |
| bar.snapshotView(afterScreenUpdates: true) | |
| // got image from real uibutton | |
| let itemView = tempItem.value(forKey: "view") as! UIView | |
| for view in itemView.subviews { | |
| if let button = view as? UIButton, | |
| let image = button.imageView?.image { | |
| return image | |
| } | |
| } | |
| return nil | |
| } | |
| } |
