每次在UIImagePickerController()的dismiss()之后调用viewDidLoad(). [英] viewDidLoad() is called every time after dismiss() of UIImagePickerController()

问题描述

我从 ViewControllerA 中提出了 UIImagePickerController()，当我选择一个图像时，它的委托被调用，在该委托中我写了

I presented UIImagePickerController() from ViewControllerA and when I select a image its delegate called and in that delegate I wrote

func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {

        dismiss(animated: true, completion: nil)
}

但 ViewControllerA 的 viewDidLoad()也称为

推荐答案

请找到以下代码，不会每次都调用viewDidLoad.

Please find below code, viewDidLoad doesn't get called every time.

override func viewDidLoad() {
    super.viewDidLoad()
    print("View Did Load")
}

private func imagePickerController(_ picker: UIImagePickerController,
                           didFinishPickingMediaWithInfo info: [String : AnyObject]) {
    picker.dismiss(animated: true, completion: nil);

    _ = info[UIImagePickerControllerOriginalImage] as! UIImage
}

func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
    picker.dismiss(animated: true, completion: nil)
}

使用此代码打开照片库，

Open Photo Library using this code,

@IBAction func btnclicked(_ sender: Any) {
    let picker = UIImagePickerController()
    picker.sourceType = .photoLibrary
    picker.delegate = self
    self.present(picker, animated: true, completion: nil)
}

还要发布您的一些代码，以便我进行审核.

Also post some of your code so I can review it.

如有任何疑问，请通知我.

Let me know in case of any queries.

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