c# - uipopover controller is being dealloced monotouch -


i think, having issue uipopovercontroller being deallocated before being dismissed, odd uipopovercontroller class variable. appreciated.

here error, getting

monotouch.foundation.monotouchexception: objective-c exception thrown.  name: nsgenericexception reason: -[uipopovercontroller dealloc] reached while popover still visible.   @ at (wrapper managed-to-native) monotouch.foundation.nsobject:monotouch_release_managed_ref (intptr)   @ monotouch.foundation.nsobject.releasemanagedref () [0x00000] in /developer/monotouch/source/monotouch/src/foundation/nsobject.cs:99   @ monotouch.foundation.nsobject+nsobject_disposer.drain (monotouch.foundation.nsobject ctx) [0x00062] in /developer/monotouch/source/monotouch/src/shared/foundation/nsobject2.cs:602   @ at (wrapper managed-to-native) monotouch.uikit.uiapplication:uiapplicationmain (int,string[],intptr,intptr)   @ monotouch.uikit.uiapplication.main (system.string[] args, system.string principalclassname, system.string delegateclassname) [0x0004c] in /developer/monotouch/source/monotouch/src/uikit/uiapplication.cs:38   @ lab_assistant.application.main (system.string[] args) [0x00008] in /working/lab_assistant/main.cs:17

and here class, working on

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);         }     } } }

thank help

i bet edit called multiple times, resulting of multiple uipopovercontroller being instantiated. if it's case, fix this:

public void edit () {     if (_popup != null && _popup.popovervisible) {         _popup.dismiss (false);         _popup.dispose();     }      //your code }

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