我将PhotoBrowser
(它继承自UIViewController
)作为presentedViewController
。我是从UITableViewController
提出来的。当我点击按钮时,PhotoBrowser
呈现actionMainController
(它继承自UIAlertController
)。我想调用另一个UIAlertController
,当我选择actionMainController中的一个动作并在其被解除后立即显示第二个UIAlertController
但是完成块不起作用。我想补充说,忽略actionMainController
成功,它有效
class PhotoBrowser: SKPhotoBrowser {
// MARK: - Controllers
private var actionMainController = UIAlertController()
// MARK: - Lifecycle
override func viewDidLoad() {
super.viewDidLoad()
}
// MARK: - override var
override var prefersStatusBarHidden: Bool {
return true
}
// MARK: - functions
func editAvatar() {
debugPrint("removePhoto")
actionMainController = UIAlertController(title: nil, message: nil, preferredStyle: .actionSheet)
actionMainController.addAction(UIAlertAction(title: "Cancel", style: .cancel, handler: nil))
let deleteAction = UIAlertAction(title: "Delete Photo", style: .destructive) { (action) in
self.deletePhoto()
}
let takePhoto = UIAlertAction(title: "Take Photo", style: .default) { (action) in
}
let choosePhoto = UIAlertAction(title: "Choose Photo", style: .default) { (action) in
}
actionMainController.addAction(deleteAction)
actionMainController.addAction(takePhoto)
actionMainController.addAction(choosePhoto)
present(actionMainController, animated: true, completion: nil)
}
private func deletePhoto() {
actionMainController.dismiss(animated: true) {
// TODO: it
// self.showDeleteActionSheet()
}
showDeleteActionSheet()
}
private func showDeleteActionSheet() {
let deleteActionController = UIAlertController(title: nil, message: nil, preferredStyle: .actionSheet)
deleteActionController.addAction(UIAlertAction(title: "Cancel", style: .cancel, handler: nil))
let deleteAction = UIAlertAction(title: "Delete Photo", style: .destructive) { (action) in
}
deleteActionController.addAction(deleteAction)
present(deleteActionController, animated: true, completion: nil)
}
}
答案 0 :(得分:1)
您的完成处理程序未被调用,因为您的警报已被解除,并且您再次尝试关闭警报。
let deleteAction = UIAlertAction(title: "Delete Photo", style: .destructive) { (action) in
self.showDeleteActionSheet()
}
相反,你应该在Action的完成处理程序上做一些工作
{{1}}