Swift ImagePicker VideoCapture未完成未调用的PickingMedia

我正在做一个涉及视频捕获的项目。我基本上想通过编程来捕获视频

我定义了imagepicker并开始视频捕获：

if (UIImagePickerController.isSourceTypeAvailable(.camera)) {
            imagePicker.sourceType = .camera
            imagePicker.cameraDevice = UIImagePickerControllerCameraDevice.front
            imagePicker.allowsEditing = false
            imagePicker.delegate = self

            //present(imagePicker, animated: true, completion: {})
        }
        imagePicker.startVideoCapture()
        print("Capture started")

imagePicker.stopVideoCapture()
    print("capture over")

后来，我停止了视频捕获：

if (UIImagePickerController.isSourceTypeAvailable(.camera)) {
            imagePicker.sourceType = .camera
            imagePicker.cameraDevice = UIImagePickerControllerCameraDevice.front
            imagePicker.allowsEditing = false
            imagePicker.delegate = self

            //present(imagePicker, animated: true, completion: {})
        }
        imagePicker.startVideoCapture()
        print("Capture started")

imagePicker.stopVideoCapture()
    print("capture over")

我知道这应该调用我的方法：

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

    print("captured")


    if let pickedvideo:NSURL = (info[UIImagePickerControllerMediaURL] as! NSURL) {
        let selectorToCall = Selector("videoWasSavedSuccessfully.didFinishSavingWithError:context:")
        UISaveVideoAtPathToSavedPhotosAlbum(pickedvideo.relativePath!, self, selectorToCall, nil)

        let videoasset = (AVAsset(url: pickedvideo as URL))
        let playeritem = AVPlayerItem(asset: videoasset)
        let player = AVPlayer(playerItem: playeritem)
        let playerViewController = AVPlayerViewController()
        playerViewController.player = player
        self.present(playerViewController, animated: true) {
            playerViewController.player?.play()
        }
    }
}

---

但是捕获的内容不会被打印出来，即使我知道我正在开始和停止录制，因为捕获开始和捕获结束都会被打印出来。我不确定为什么没有调用该方法。有什么建议吗？

尝试将mediaTypes设置为kUTTypeMovie。

为什么要使用cocoa标签？您应该检查startVideoCapture的返回值。是否返回true？这与是否调用委托方法有什么关系？我建议添加，因为缺少媒体类型。至少我们应该添加缺少的行并检查。然后这应该是一个注释，而不是答案。但是你还不能发表评论。请不要发表评论作为答案。等到你赢得足够的声誉后再发表评论。