dismissViewControllerAnimated：完成：]：无法识别的选择发送到实例 - MonoTouch的

当我把这个行：dismissViewControllerAnimated：完成：]：无法识别的选择发送到实例 - MonoTouch的

((UIImagePickerController)sender).DismissViewController (true,() => {});

我得到这个错误。请帮助

MonoTouch.Foundation.MonoTouchException: Objective-C exception thrown. Name: NSInvalidArgumentException Reason: -[UIImagePickerController dismissViewControllerAnimated:completion:]: unrecognized selector sent to instance 0xb647ed0 
    at (wrapper managed-to-native) MonoTouch.ObjCRuntime.Messaging:void_objc_msgSend_bool_IntPtr (intptr,intptr,bool,intptr) 
    at MonoTouch.UIKit.UIViewController.DismissViewController (Boolean animated, MonoTouch.Foundation.NSAction completionHandler) [0x00036] in /Developer/MonoTouch/Source/monotouch/src/UIKit/UIViewController.g.cs:678 
    at ECPIInstructorObservationForm.Section1.Handle_FinishedPickingMedia (System.Object sender, MonoTouch.UIKit.UIImagePickerMediaPickedEventArgs e) [0x00142] in /Users/kjohnson/Projects/ECPIInstructorObservationForm/ECPIInstructorObservationForm/Section1.cs:298 
    at MonoTouch.UIKit.UIImagePickerController+_UIImagePickerControllerDelegate.FinishedPickingMedia (MonoTouch.UIKit.UIImagePickerController picker, MonoTouch.Foundation.NSDictionary info) [0x00014] in /Developer/MonoTouch/Source/monotouch/src/UIKit/UIImagePickerController.g.cs:601 
    at (wrapper managed-to-native) MonoTouch.UIKit.UIApplication:UIApplicationMain (int,string[],intptr,intptr) 
    at MonoTouch.UIKit.UIApplication.Main (System.String[] args, System.String principalClassName, System.String delegateClassName) [0x0004c] in /Developer/MonoTouch/Source/monotouch/src/UIKit/UIApplication.cs:38 
    at ECPIInstructorObservationForm.Application.Main (System.String[] args) [0x00000] in /Users/kjohnson/Projects/ECPIInstructorObservationForm/ECPIInstructorObservationForm/Main.cs:17

来源

2012-10-26 Kyle Johnson

dismissViewControllerAnimated:completion:选择器是在iOS 5.0中引入的 - 您是否在早期的iOS版本上运行？

更新

我只是想运行此代码：

var picker = new UIImagePickerController(); 
picker.DismissViewController (true,() => Console.WriteLine ("foo!"));

和它跑在我的机器，这意味着你已经显示的代码是不够的，重现该问题就好了你看到 - 也许你可以展示你如何创建和使用图像选择器？

来源

2012-10-26 10:46:53

没有我运行IOS 6 –

@KyleJohnson方式：见更新以上。 –

我结束了它。我将在今晚发布代码。 –

使用DismissViewController完成处理程序是去

picker.DismissViewController (true,() => { 
    var labelPicsViewController = new LabelPicsViewController(); 
    PresentViewController(labelPicsViewController,true,null); 
});

来源

2014-09-04 14:08:14 darrellbooker

dismissViewControllerAnimated：完成：]：无法识别的选择发送到实例 - MonoTouch的

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