Guido Van Hoecke <gui...@gmail.com> writes: > Guido Van Hoecke <gui...@gmail.com> writes: > >> Guido Van Hoecke <gui...@gmail.com> writes: >> >>> Following method crashes on iPad. >> >> The problem might be related to the size of the font. The same code >> works fine on iphone, but of course uses a smaller fint there. (The game >> draws a character in an 8x8 grid, which means cell size and thus font >> size is much smaller on iphone) > > The ipad runs ois 5.1.1, the iphone runs 7.0.4 > > This may also be important in pinpointing the bug.
I filed a bug report at https://bugzilla.xamarin.com/show_bug.cgi?id=17691 Guido > > Guido > >>> >>> private void DrawChar (CGContext g, RectangleF frame, string c, >>> StateType state) >>> { >>> var h = Convert.ToInt32 (frame.Height * .8); >>> var s = new NSString (c); >>> var size = MCiOS.TextSize (UIFont.BoldSystemFontOfSize (h), >>> c.ToString ()); >>> var p = new PointF (frame.X + (frame.Width - size.Width) / 2, frame.Y >>> + (frame.Height - size.Height) / 2); >>> var font = UIFont.BoldSystemFontOfSize(h); >>> Debug.Assert(font != null, "Failed to get font of size " + h); >>> s.DrawString (p, new UIStringAttributes { >>> Font = font, >>> ForegroundColor = _textColors [(int)state], >>> }); >>> } >>> >>> The 'Font = font' line is painted green. >>> >>> Initially I did not use the intermediate variable but changed the code >>> so that I could check on the font being null. Turns out it isn't: I get >>> {Helvetica-Bold 56}. >>> >>> The details of the exception seem to indicate that it really crashes >>> inside MonoTouch: >>> >>> System.ArgumentNullException: Argument cannot be null. >>> Parameter name: key >>> at MonoTouch.Foundation.DictionaryContainer.SetNativeValue >>> (MonoTouch.Foundation.NSString key, INativeObject value, Boolean >>> removeNullValue) [0x0002f] in >>> /Developer/MonoTouch/Source/maccore/src/Foundation/.pmcs-compat.DictionaryContainer.cs:343 >>> at MonoTouch.UIKit.UIStringAttributes.set_Font (MonoTouch.UIKit.UIFont >>> value) [0x00000] in >>> /Developer/MonoTouch/Source/monotouch/src/UIKit/.pmcs-compat.UIStringAttributes.cs:78 >>> at XOOX.Classes.PuzzleView.DrawChar (MonoTouch.CoreGraphics.CGContext g, >>> RectangleF frame, System.String c, StateType state) [0x000ad] in >>> /Users/guivho/Mono/XOOX/XOOX/Classes/PuzzleView.cs:332 >>> at XOOX.Classes.PuzzleView.DrawCell (RectangleF frame, System.String c, >>> TrailType trail, StateType state, System.Collections.Generic.List`1 dots) >>> [0x00066] in /Users/guivho/Mono/XOOX/XOOX/Classes/PuzzleView.cs:294 >>> at XOOX.Classes.PuzzleView.DrawPuzzle () [0x00163] in >>> /Users/guivho/Mono/XOOX/XOOX/Classes/PuzzleView.cs:163 >>> at XOOX.Classes.PuzzleView.Draw (RectangleF rect) [0x00002] in >>> /Users/guivho/Mono/XOOX/XOOX/Classes/PuzzleView.cs:112 >>> 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/.pmcs-compat.UIApplication.cs:38 >>> at XOOX.Application.Main (System.String[] args) [0x00008] in >>> /Users/guivho/Mono/XOOX/XOOX/Main.cs:15 >>> >>> Is there some way I can prevent this error from happening? >>> >>> >>> Guido >>> >>> -- >>> The way I understand it, the Russians are sort of a combination of evil and >>> incompetence... sort of like the Post Office with tanks. >>> -- Emo Philips _______________________________________________ MonoTouch mailing list MonoTouch@lists.ximian.com http://lists.ximian.com/mailman/listinfo/monotouch
