UIImagePickerController Crashing Monotouch

我正试图编写一个应用程序,但在使用uiimagepickercontroller时它经常崩溃。我想这可能是因为每次使用后我都没有处理拾音器,但它也会在第一次运行时冻结。通常我会拍一张照片,它只是冻结,从不要求“使用”照片。

你有什么建议吗?这是我的密码。有人把这个弄好了吗?

 public override void ViewDidLoad ()
    {
        base.ViewDidLoad ();

        myPicker = new UIImagePickerController();
        myPicker.Delegate = new myPickerDelegate(this);

        myAlbumButton.Clicked += delegate {
                if(UIImagePickerController.IsSourceTypeAvailable(UIImagePickerControllerSourceType.PhotoLibrary)){
                    myPicker.SourceType = UIImagePickerControllerSourceType.PhotoLibrary;
                    myPicker.AllowsEditing = true;
                    this.PresentModalViewController (myPicker, true);
                }else{
                Console.WriteLine("cannot get album");  
            }
        };


        myCameraButton.Clicked += delegate {
            if(UIImagePickerController.IsSourceTypeAvailable(UIImagePickerControllerSourceType.Camera)){
                myPicker.SourceType = UIImagePickerControllerSourceType.Camera;
                //myPicker.AllowsEditing = true;
                this.PresentModalViewController (myPicker, true);
            }else{
                Console.WriteLine("cannot get camera"); 
            }

        };

    }


    private class myPickerDelegate : UIImagePickerControllerDelegate
    {
        private TestView _vc;

        public myPickerDelegate ( TestView controller):base()
        {
            _vc = controller;   
        }

        public override void FinishedPickingImage (UIImagePickerController myPicker, UIImage image, NSDictionary editingInfo)
        {
            // TODO: Implement - see: http://go-mono.com/docs/index.aspx?link=T%3aMonoTouch.Foundation.ModelAttribute

            _vc.myImageView.Image = image;
            myPicker.DismissModalViewControllerAnimated(true);
        }
 }