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POA DialogViewController with RefreshRequested and EntryElement crash when text entered
 

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  1. POA DialogViewController with RefreshRequested and EntryElement crash when text entered
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    <p>A DialogViewController contains an EntryElement and RefreshRequested handler is set (see code below). Run in the simulator, debug mode, type some quick random text (containing spaces) in the EntryElement. Crash will follow.</p> <p>What I am doing wrong ?</p> <p>I guess this is a bug in DialogViewController not retaining some images that is garbage collected. Is there a switch to trace garbage collector and removed objects ?</p> <p>the offending code :</p> <pre><code>[Register ("AppDelegate")] public partial class AppDelegate : UIApplicationDelegate { // class-level declarations UIWindow window; UINavigationController navController; DialogViewController dv ; public override bool FinishedLaunching (UIApplication app, NSDictionary options) { // create a new window instance based on the screen size window = new UIWindow (UIScreen.MainScreen.Bounds); navController = new UINavigationController(); var root = new RootElement("Test") { new Section("Quick type some text") { new EntryElement("that contains spaces", string.Empty, string.Empty) } }; dv = new DialogViewController(root, true); dv.RefreshRequested += HandleDvRefreshRequested; // comment this line fixes the bug window.MakeKeyAndVisible (); if (UIDevice.CurrentDevice.CheckSystemVersion (5, 0)) { window.RootViewController = navController; } else { window.AddSubview (navController.View); } return true; } void HandleDvRefreshRequested (object sender, EventArgs e) { dv.ReloadComplete(); } } </code></pre> <pre> Starting iOS simulator 5.0 Launching application Application launched. PID = 4730 Loaded assembly: /Developer/MonoTouch/usr/lib/mono/2.1/monotouch.dll [External] Loaded assembly: /Developer/MonoTouch/usr/lib/mono/2.1/System.Core.dll [External] Loaded assembly: /Developer/MonoTouch/usr/lib/mono/2.1/System.dll [External] Thread started: Loaded assembly: /Users/user/Documents/iphone-cinetoile/Cinetoile.UI2/bin/iPhoneSimulator/Debug/MyApp.exe Loaded assembly: /Developer/MonoTouch/usr/lib/mono/2.1/MonoTouch.Dialog-1.dll [External] Loaded assembly: /Developer/MonoTouch/usr/lib/mono/2.1/Mono.Security.dll [External] Loaded assembly: /Developer/MonoTouch/usr/lib/mono/2.1/System.Xml.dll [External] Stacktrace: at (wrapper managed-to-native) MonoTouch.UIKit.UIApplication.UIApplicationMain (int,string[],intptr,intptr) at MonoTouch.UIKit.UIApplication.Main (string[],string,string) [0x00042] in /Developer/MonoTouch/Source/monotouch/src/UIKit/UIApplication.cs:29 at MyApp.Application.Main (string[]) [0x00000] in /Users/user/Documents/MyApp/Main.cs:17 at (wrapper runtime-invoke) .runtime_invoke_void_object (object,intptr,intptr,intptr) </pre> <p>Native stacktrace:</p> <pre><code>0 MyApp 0x000908ec mono_handle_native_sigsegv + 284 1 MyApp 0x00005c88 mono_sigsegv_signal_handler + 248 2 libSystem.B.dylib 0x9141905b _sigtramp + 43 3 ??? 0xffffffff 0x0 + 4294967295 4 ??? 0x92c013ef 0x0 + 2462061551 5 ??? 0x92c011ee 0x0 + 2462061038 6 ??? 0x987a313c 0x0 + 2558144828 7 CoreGraphics 0x91b49e20 CGDataProviderRetain + 22 8 ??? 0x9880c456 0x0 + 2558575702 9 ImageIO 0x9754a0d2 CGImageReadCreateWithProvider + 185 10 ImageIO 0x97549fee CGImageSourceCreateWithDataProvider + 186 11 CoreGraphics 0x013c0d2f CGImageCreateWithPNGDataProvider + 87 12 WebCore 0x073ca2a5 WKGraphicsCreateImageFromBundleWithName + 373 13 WebCore 0x06c1c5bd _ZN7WebCore15GraphicsContext23drawLineForTextCheckingERKNS_10FloatPointEfNS0_21TextCheckingLineStyleE + 369 14 WebCore 0x06cf6e84 _ZN7WebCore13InlineTextBox28paintSpellingOrGrammarMarkerEPNS_15GraphicsContextERKNS_10FloatPointERKNS_14DocumentMarkerEPNS_11RenderStyleERKNS_4FontEb + 1684 15 WebCore 0x06cf6fb9 _ZN7WebCore13InlineTextBox20paintDocumentMarkersEPNS_15GraphicsContextERKNS_10FloatPointEPNS_11RenderStyleERKNS_4FontEb + 297 16 WebCore 0x06cf33fc _ZN7WebCore13InlineTextBox5paintERNS_9PaintInfoEiiii + 6490 17 WebCore 0x06cec3cd _ZN7WebCore13InlineFlowBox5paintERNS_9PaintInfoEiiii + 1065 18 WebCore 0x0724d24c _ZN7WebCore13RootInlineBox5paintERNS_9PaintInfoEiiii + 64 19 WebCore 0x071a8e2a _ZNK7WebCore17RenderLineBoxList5paintEPNS_20RenderBoxModelObjectERNS_9PaintInfoEii + 638 20 WebCore 0x07142089 _ZN7WebCore11RenderBlock11paintObjectERNS_9PaintInfoEii + 369 21 WebCore 0x0714248f _ZN7WebCore11RenderBlock5paintERNS_9PaintInfoEii + 307 22 WebCore 0x07141615 _ZN7WebCore11RenderBlock13paintChildrenERNS_9PaintInfoEii + 467 23 WebCore 0x071420ab _ZN7WebCore11RenderBlock11paintObjectERNS_9PaintInfoEii + 403 24 WebCore 0x0714248f _ZN7WebCore11RenderBlock5paintERNS_9PaintInfoEii + 307 25 WebCore 0x07141615 _ZN7WebCore11RenderBlock13paintChildrenERNS_9PaintInfoEii + 467 26 WebCore 0x071420ab _ZN7WebCore11RenderBlock11paintObjectERNS_9PaintInfoEii + 403 27 WebCore 0x0714248f _ZN7WebCore11RenderBlock5paintERNS_9PaintInfoEii + 307 28 WebCore 0x07141615 _ZN7WebCore11RenderBlock13paintChildrenERNS_9PaintInfoEii + 467 29 WebCore 0x071420ab _ZN7WebCore11RenderBlock11paintObjectERNS_9PaintInfoEii + 403 30 WebCore 0x0714248f _ZN7WebCore11RenderBlock5paintERNS_9PaintInfoEii + 307 31 WebCore 0x071961b0 _ZN7WebCore11RenderLayer10paintLayerEPS0_PNS_15GraphicsContextERKNS_7IntRectEjPNS_12RenderObjectEPN3WTF7HashMapIPNS_24OverlapTestRequestClientES4_NS9_7PtrHashISC_EENS9_10HashTraitsISC_EENSF_IS4_EEEEj + 3684 32 WebCore 0x0719648c _ZN7WebCore11RenderLayer10paintLayerEPS0_PNS_15GraphicsContextERKNS_7IntRectEjPNS_12RenderObjectEPN3WTF7HashMapIPNS_24OverlapTestRequestClientES4_NS9_7PtrHashISC_EENS9_10HashTraitsISC_EENSF_IS4_EEEEj + 4416 33 WebCore 0x071973bb _ZN7WebCore11RenderLayer5paintEPNS_15GraphicsContextERKNS_7IntRectEjPNS_12RenderObjectE + 101 34 WebCore 0x06bef809 _ZN7WebCore9FrameView13paintContentsEPNS_15GraphicsContextERKNS_7IntRectE + 591 35 WebKit 0x067a51d0 -[WebFrame(WebInternal) _drawRect:contentsOnly:] + 368 36 WebKit 0x067cc83c -[WebHTMLView drawSingleRect:] + 124 37 WebKit 0x067cc786 -[WebHTMLView drawRect:] + 118 38 WebCore 0x07392c2f _ZL12drawCallbackP6WKView6CGRectPv + 95 39 WebCore 0x073cd52c _ZL11_WKViewDrawP9CGContextP6WKView6CGRectb + 492 40 WebCore 0x073cd61f _ZL11_WKViewDrawP9CGContextP6WKView6CGRectb + 735 41 WebCore 0x073cd61f _ZL11_WKViewDrawP9CGContextP6WKView6CGRectb + 735 42 WebCore 0x073cd61f _ZL11_WKViewDrawP9CGContextP6WKView6CGRectb + 735 43 WebCore 0x073cd61f _ZL11_WKViewDrawP9CGContextP6WKView6CGRectb + 735 44 WebCore 0x073cd80e WKViewDisplayRect + 158 45 WebCore 0x073cead0 WKWindowDrawRect + 48 46 WebCore 0x0735daf0 _ZN7WebCore9TileCache9drawLayerEP9TileLayerP9CGContext + 880 47 WebCore 0x07362af1 -[TileLayer drawInContext:] + 49 48 QuartzCore 0x0417212d _ZL16backing_callbackP9CGContextPv + 88 49 QuartzCore 0x0409215d CABackingStoreUpdate_ + 2636 50 QuartzCore 0x04171fd2 _ZN2CA5Layer8display_Ev + 1370 51 QuartzCore 0x0415fcf1 -[CALayer _display] + 33 52 QuartzCore 0x04166281 _ZN2CA5Layer7displayEv + 165 53 QuartzCore 0x0415fd17 -[CALayer display] + 33 54 QuartzCore 0x04169c5c _ZN2CA5Layer17display_if_neededEPNS_11TransactionE + 256 55 QuartzCore 0x040effb9 _ZN2CA7Context18commit_transactionEPNS_11TransactionE + 395 56 QuartzCore 0x040f1ea6 _ZN2CA11Transaction6commitEv + 374 57 QuartzCore 0x040f1580 _ZN2CA11Transaction17observer_callbackEP19__CFRunLoopObservermPv + 80 58 CoreFoundation 0x011959ce __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 30 59 CoreFoundation 0x0112c670 __CFRunLoopDoObservers + 384 60 CoreFoundation 0x010f84f6 __CFRunLoopRun + 1174 61 CoreFoundation 0x010f7db4 CFRunLoopRunSpecific + 212 62 CoreFoundation 0x010f7ccb CFRunLoopRunInMode + 123 63 GraphicsServices 0x04789879 GSEventRunModal + 207 64 GraphicsServices 0x0478993e GSEventRun + 114 65 UIKit 0x02190a9b UIApplicationMain + 1175 66 ??? 0x0cda47fd 0x0 + 215631869 67 ??? 0x0cc78ea0 0x0 + 214404768 68 ??? 0x0cc78b98 0x0 + 214403992 69 ??? 0x0cc78cee 0x0 + 214404334 70 MyApp 0x00009ff2 mono_jit_runtime_invoke + 722 71 MyApp 0x00169eee mono_runtime_invoke + 126 72 MyApp 0x0016dfd4 mono_runtime_exec_main + 420 73 MyApp 0x001733f5 mono_runtime_run_main + 725 74 MyApp 0x000671f5 mono_jit_exec + 149 75 MyApp 0x002116c9 main + 2825 76 MyApp 0x00003045 start + 53 </code></pre> <pre> ================================================================= Got a SIGSEGV while executing native code. This usually indicates a fatal error in the mono runtime or one of the native libraries used by your application. ================================================================= </pre>
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    1. USLukeSkywalker
    1. USLukeSkywalker
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      1. VTUpMod
    1. CObug already reported as https://bugzilla.xamarin.com/show_bug.cgi?id=3538
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      1. POA DialogViewController with RefreshRequested and EntryElement crash when text entered
      1. USpoupou
    2. COYep, I thought it had greater visibility here.
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      1. USLukeSkywalker
 

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