Why cancleButton of UIActionSheet becomes the first button on iOS7 device [duplicate] - swift

Question

This question already has answers here:
UIActionSheet in swift puts Cancel button top in iOS 7
(2 answers)
Closed 7 years ago.
I ran my app on iPhone5s iOS7. The indexes of buttons are wrong, cancleButton becomes the first button. I am confused that when I tap the background, it opens the album. I don't know why. So strange.
图片在这里
This is my code.
func actionsheetInIOS8Early() {
let actionSheet = UIActionSheet(title: nil, delegate: self, cancelButtonTitle: "cancle", destructiveButtonTitle: nil)
actionSheet.addButtonWithTitle("album")
if UIImagePickerController.isSourceTypeAvailable( UIImagePickerControllerSourceType.Camera) {
actionSheet.addButtonWithTitle("camera")
}
actionSheet.showInView(self.view)
}

Answer 1

When you add
let actionSheet = UIActionSheet(title: nil, delegate: self, cancelButtonTitle: "cancle", destructiveButtonTitle: nil)
this line it will add Cancel button to index 0 and then after it will add your buttons
actionSheet.addButtonWithTitle("album")
if UIImagePickerController.isSourceTypeAvailable( UIImagePickerControllerSourceType.Camera) {
actionSheet.addButtonWithTitle("camera")
}
Album button at index 1 & Camera at index 2
So If you want Cancel button at last index then you need to add like
actionSheet.addButtonWithTitle("Cancel")
after adding your button for Album and Camera.

Answer 2

Try this
let optionMenu = UIAlertController(title: "Title", message: "message", preferredStyle: .ActionSheet);
if UIImagePickerController.isSourceTypeAvailable( UIImagePickerControllerSourceType.Camera){
let cameraAction = UIAlertAction(title: "Camera", style: .Default, handler: {
(alert: UIAlertAction) -> Void in
// do something
})
optionMenu.addAction(cameraAction);
}
let cancelAction = UIAlertAction(title: "Cancel", style: .Cancel, handler: {
(alert: UIAlertAction) -> Void in
print("Cancelled")
})
optionMenu.addAction(cancelAction);
self.presentViewController(optionMenu, animated: true, completion: nil);
If u add cancel button as above, cancel button will shown at the end of the AlertController