無法為相機膠卷中的視頻檢索 URL Swift 5

Question

下面是我的代碼：

@IBAction func selectVideoButton(_ sender: UIButton) {
    let videoPicker = UIImagePickerController()
    videoPicker.sourceType = UIImagePickerController.SourceType.photoLibrary
    videoPicker.mediaTypes = [kUTTypeImage as String, kUTTypeMovie as String]
    videoPicker.delegate = self
    present(videoPicker, animated: true, completion: nil)
}


func retrieveURL(_picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey: Any]) {
    if let videoURL = info[.mediaURL] {
        print("Here is the URL: \(videoURL)")
        return
    }
}

我沒有收到任何錯誤，選擇視頻后應用程序不會崩潰，它似乎沒有做任何事情。 抱歉，如果某處有此問題的答案，找不到與 swift 5 或有效的答案相關的問題。

我嘗試將“任何”更改為字符串，然后相應地修改 videoURL，但這也不起作用。

Answer 1

您需要正確的委托方法

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

    if let videoURL = info[.mediaURL] {
        print("Here is the URL: \(videoURL)") 
    }
    picker.dismiss(animated:true,completion:nil) // add this 
}

Answer 2

func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
   let videoURL = info[UIImagePickerControllerMediaURL] as? URL
   print(videoURL)
   imagePickerController.dismissViewControllerAnimated(true, completion: nil)
}