uipopover控制器正在處理單點觸摸

我認爲，我有一個問題，其中UIPopoverController被解僱之前被解僱，這是奇怪的，因爲UIPopoverController是一個類變量。任何幫助將非常感激。uipopover控制器正在處理單點觸摸

以下是錯誤，我越來越

MonoTouch.Foundation.MonoTouchException: Objective-C exception thrown. Name: NSGenericException Reason: -[UIPopoverController dealloc] reached while popover is still visible. 
    at at (wrapper managed-to-native) MonoTouch.Foundation.NSObject:monotouch_release_managed_ref (intptr) 
    at MonoTouch.Foundation.NSObject.ReleaseManagedRef() [0x00000] in /Developer/MonoTouch/Source/monotouch/src/Foundation/NSObject.cs:99 
    at MonoTouch.Foundation.NSObject+NSObject_Disposer.Drain (MonoTouch.Foundation.NSObject ctx) [0x00062] in /Developer/MonoTouch/Source/monotouch/src/shared/Foundation/NSObject2.cs:602 
    at 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 Lab_assistant.Application.Main (System.String[] args) [0x00008] in /working/Lab_assistant/Main.cs:17

這裏是類，我的工作

using System.Drawing; 
using MonoTouch.Foundation; 
using MonoTouch.UIKit; 

namespace Lab_assistant 
{ 
[Register("ViewView")] 
public class ViewView:UIView 
{ 
    public Block _b { set; get;} 
    public EventHandler _touched; 
    private UIView _popViewText; 
    private UIViewController _Controller; 
    private UIPopoverController _popUp; 
    Boolean edit; 

    public ViewView (Block b,BlockManger.Del TheMethod) 
    { 
     _b = b; 
     this.Frame = b._location; 
     this.BackgroundColor = UIColor.White; 
     this.AddGestureRecognizer (new UILongPressGestureRecognizer (tapped)); 
     TheMethod (_b,this); 
     this.Frame = new System.Drawing.RectangleF(b._location.Location, new System.Drawing.SizeF (b._location.Width, b._location.Height + 2)); 
    } 

    [Export("tapped")] 
    protected void tapped(UIGestureRecognizer sender) 
    { 
     TouchOccoured(); 
    } 

    public void Edit() 
    { 
     UIButton btn = new UIButton (UIButtonType.RoundedRect); 
     _popViewText = new UIView(new System.Drawing.RectangleF(new System.Drawing.PointF(0,0), new System.Drawing.SizeF(200,200))); 
     _popViewText.BackgroundColor = UIColor.DarkGray; 
     btn.Hidden = false; 
     btn.Frame = new System.Drawing.RectangleF(new System.Drawing.PointF(0,31),new System.Drawing.SizeF(100,30)); 
     btn.SetTitle ("Remove", UIControlState.Normal); 

     UIButton btn2 = new UIButton (UIButtonType.RoundedRect); 
     btn2.Hidden = false; 
     btn2.Frame = new System.Drawing.RectangleF(new System.Drawing.PointF(0,0),new System.Drawing.SizeF(100,30)); 
     btn2.SetTitle ("Resize", UIControlState.Normal); 

     _popViewText.AddSubview (btn); 
     _popViewText.AddSubview (btn2); 
     _Controller = new UIViewController(); 
     _Controller.Add (_popViewText); 
     _popUp = new UIPopoverController(_Controller); 

     btn.TouchUpInside += (object sender, EventArgs e) => 
     { 
      this.RemoveFromSuperview(); 
      edit = false; 
     }; 
    } 

    public void EditBlock() 
    { 
     if (!edit) 
     { 
      edit = true; 
      _popUp.PopoverContentSize = new SizeF (200, 200); 
      _popUp.PresentFromRect (new System.Drawing.RectangleF (new PointF(0,0), new System.Drawing.SizeF (20, 20)), this, UIPopoverArrowDirection.Left, true); 
      //_popViewText = new UIView (rec); 
     } 
    } 

    public void TouchOccoured() 
    { 
     if(_touched != null) 
     { 
      this.Edit(); 
      this.EditBlock(); 

      _touched (this, null); 
     } 
    } 
} 
}

非常感謝你的幫助

來源

2013-10-07 Ryan Dunn

我敢打賭Edit被稱爲多次，導致多個UIPopoverController被實例化。如果是這樣的話，你可以用這樣的東西來解決它：

public void Edit() 
{ 
    if (_popup != null && _popup.PopoverVisible) { 
     _popup.Dismiss (false); 
     _popup.Dispose(); 
    } 

    //your code 
}

來源

2013-10-07 09:56:01

非常感謝你，我打電話編輯作爲長時間壓縮的結果，這導致它被稱爲多次 –

一對夫婦的點子：

確保Edit只被調用一次。
確保ViewView不會被處理（您可以通過實施Dispose重載並在其中放置斷點或Console.WriteLine來輕鬆完成此操作）。

來源

2013-10-07 09:48:01

uipopover控制器正在處理單點觸摸

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