I have a master detail Page with a menu to access multiple pages.
The first page contains a SFMaps which is loaded fine.
When i navigate on an other page and come back to the first one, the app crashes only in IOS.
Erro Log :
Unhandled Exception:
System.NullReferenceException: Object reference not set to an instance of an object
at Syncfusion.SfMaps.iOS.SFShapeFileLayer.GetLatitudeLongitudeFromPoint (CoreGraphics.CGPoint pointXY) [0x0003f] in <009a2014e4c64d63a15e7a528698e0e7>:0
at Syncfusion.SfMaps.iOS.SFMap.set_Frame (CoreGraphics.CGRect value) [0x0029a] in <009a2014e4c64d63a15e7a528698e0e7>:0
at Xamarin.Forms.Platform.iOS.ViewRenderer`2[TView,TNativeView].LayoutSubviews () [0x00013] in D:\a\1\s\Xamarin.Forms.Platform.iOS\ViewRenderer.cs:77
at (wrapper managed-to-native) UIKit.UIApplication.UIApplicationMain(int,string[],intptr,intptr)
at UIKit.UIApplication.Main (System.String[] args, System.IntPtr principal, System.IntPtr delegate) [0x00005] in /Library/Frameworks/Xamarin.iOS.framework/Versions/13.6.0.12/src/Xamarin.iOS/UIKit/UIApplication.cs:86
at UIKit.UIApplication.Main (System.String[] args, System.String principalClassName, System.String delegateClassName) [0x0000e] in /Library/Frameworks/Xamarin.iOS.framework/Versions/13.6.0.12/src/Xamarin.iOS/UIKit/UIApplication.cs:65
at Aster.iOS.Application.Main (System.String[] args) [0x00001] in /Users/philippehoarau/Desktop/Aster-SAV/Aster.iOS/Main.cs:17
2019-11-26 11:13:48.358152+0400 Aster.iOS[43334:4432599] Unhandled managed exception: Object reference not set to an instance of an object (System.NullReferenceException)
at Syncfusion.SfMaps.iOS.SFShapeFileLayer.GetLatitudeLongitudeFromPoint (CoreGraphics.CGPoint pointXY) [0x0003f] in <009a2014e4c64d63a15e7a528698e0e7>:0
at Syncfusion.SfMaps.iOS.SFMap.set_Frame (CoreGraphics.CGRect value) [0x0029a] in <009a2014e4c64d63a15e7a528698e0e7>:0
at Xamarin.Forms.Platform.iOS.ViewRenderer`2[TView,TNativeView].LayoutSubviews () [0x00013] in D:\a\1\s\Xamarin.Forms.Platform.iOS\ViewRenderer.cs:77
at (wrapper managed-to-native) UIKit.UIApplication.UIApplicationMain(int,string[],intptr,intptr)
at UIKit.UIApplication.Main (System.String[] args, System.IntPtr principal, System.IntPtr delegate) [0x00005] in /Library/Frameworks/Xamarin.iOS.framework/Versions/13.6.0.12/src/Xamarin.iOS/UIKit/UIApplication.cs:86
at UIKit.UIApplication.Main (System.String[] args, System.String principalClassName, System.String delegateClassName) [0x0000e] in /Library/Frameworks/Xamarin.iOS.framework/Versions/13.6.0.12/src/Xamarin.iOS/UIKit/UIApplication.cs:65
at Aster.iOS.Application.Main (System.String[] args) [0x00001] in /Users/philippehoarau/Desktop/Aster-SAV/Aster.iOS/Main.cs:17
Version of Xamarin Form : 4.3.0.991211
Version Of Syncfusion : 17.3.0.28
Debug Fail à line 77 of Xamarin.Forms.Plateform.iOS/viewRenderer.cs
71 NativeView ITabStop.TabStop => Control;
72 #if __MOBILE__
73 public override void LayoutSubviews()
74 {
75 base.LayoutSubviews();
76 if (Control != null)
77 Control.Frame = new RectangleF(0, 0, (nfloat)Element.Width,(nfloat)Element.Height);
78 }
79
80 public override SizeF SizeThatFits(SizeF size)
81 {
82 if (Control == null)
83 return (base.SizeThatFits(size));
return Control.SizeThatFits(size);
}
with the stacktrace :
at Syncfusion.SfMaps.iOS.SFShapeFileLayer.GetLatitudeLongitudeFromPoint (CoreGraphics.CGPoint pointXY) [0x0003f] in <009a2014e4c64d63a15e7a528698e0e7>:0
at Syncfusion.SfMaps.iOS.SFMap.set_Frame (CoreGraphics.CGRect value) [0x0029a] in <009a2014e4c64d63a15e7a528698e0e7>:0
at Xamarin.Forms.Platform.iOS.ViewRenderer`2[TView,TNativeView].LayoutSubviews () [0x00013] in D:\a\1\s\Xamarin.Forms.Platform.iOS\ViewRenderer.cs:77
at (wrapper managed-to-native) UIKit.UIApplication.UIApplicationMain(int,string[],intptr,intptr)
at UIKit.UIApplication.Main (System.String[] args, System.IntPtr principal, System.IntPtr delegate) [0x00005] in /Library/Frameworks/Xamarin.iOS.framework/Versions/13.6.0.12/src/Xamarin.iOS/UIKit/UIApplication.cs:86
at UIKit.UIApplication.Main (System.String[] args, System.String principalClassName, System.String delegateClassName) [0x0000e] in /Library/Frameworks/Xamarin.iOS.framework/Versions/13.6.0.12/src/Xamarin.iOS/UIKit/UIApplication.cs:65
at Aster.iOS.Application.Main (System.String[] args) [0x00001] in /Users/philippehoarau/Desktop/Aster-SAV/Aster.iOS/Main.cs:17
Hope you cans help me ...
Regards.
