Swift ImagePicker VideoCapture didFInishPickingMedia 未被调用

Question

我正在从事一个涉及视频捕捉的项目。我基本上想以编程方式捕获视频。

我定义了图像选择器并开始了视频捕捉：

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")

后来，我停止了视频拍摄：

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“捕获”不会打印，即使我知道我正在开始和停止录制，因为打印了“捕获开始”和“捕获结束”。我不确定为什么没有调用该方法。有什么建议吗？

Answer 1

尝试将 mediaTypes 设置为 kUTTypeMovie。