UIImagePickerController didFinishPickingMediaWithInfo 没有被 cameraOverlyView 调用

Question

我有带有 cameraOverlyView 的 UIImagePickerController。我在覆盖视图中添加了点击手势识别器 - 当用户点击视图时，应该停止并保存记录：

let mediaUI = UIImagePickerController()
    mediaUI.sourceType = sourceType
    mediaUI.mediaTypes = [kUTTypeMovie as String]
    mediaUI.allowsEditing = true
    mediaUI.delegate = self

    //customView stuff
    let customViewController = CustomOverlayViewController(
        nibName:"CustomOverlayViewController",
        bundle: nil
    )
    let customView:CustomOverlayView = customViewController.view as! CustomOverlayView
    customView.frame = delegate.view.frame //self.picker.view.frame
    let tapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(cameraViewTapped(tapGestureRecognizer:)))
    customView.cameraView.addGestureRecognizer(tapGestureRecognizer)
    customView.delegate = delegate


    delegate.present(mediaUI, animated: true, completion: {
        mediaUI.cameraOverlayView = customView
    })

手势识别器称之为：

@objc func cameraViewTapped(tapGestureRecognizer: UITapGestureRecognizer)
{
    if isRecording {
        self.picker!.stopVideoCapture()
        self.recordButton.isEnabled = false
        print("stopped")
        isRecording = false
    } else {
        self.picker!.startVideoCapture()
        print("started")
        isRecording = true
    }
}

委托方法：

extension HomeViewController: UIImagePickerControllerDelegate {
func imagePickerController(_ picker: UIImagePickerController,
                           didFinishPickingMediaWithInfo info: [String : Any]) {
    print("didFinishPickingMediaWithInfo")
    dismiss(animated: true, completion: nil)

    guard
        let mediaType = info[UIImagePickerControllerMediaType] as? String,
        mediaType == (kUTTypeMovie as String),
        let url = info[UIImagePickerControllerMediaURL] as? URL,
        UIVideoAtPathIsCompatibleWithSavedPhotosAlbum(url.path)
        else {
            return
    }

    // Handle a movie capture
    UISaveVideoAtPathToSavedPhotosAlbum(
        url.path,
        self,
        #selector(video(_:didFinishSavingWithError:contextInfo:)),
        nil)
}

}

我的问题是如何从选取器控制器获取记录？由于覆盖视图，未调用委托方法 didFinishPickingMediaWithInfo：UIImagePickerController didFinishPickingMediaWithInfo not being called when cameraOverlyView property is assigned

Answer 1

通过添加以下代码行解决了这个问题：

mediaUI.showsCameraControls = false