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OndrejKunc / SkiaScene

Simple API to transform SkiaSharp objects using functions like zoom and rotate or using gestures like pan and pinch.
MIT License
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Touch does not register when Compile with .NET Native tool chain selected (Debug or Release) #6

Closed WillAutioItrax closed 5 years ago

WillAutioItrax commented 5 years ago

I have a simple demo that draws a background grid of lines. Then it waits for a click/touch on the grid. Expected behavior: When it gets a touch, it draws a fat black line of length 50. Observed behavior: If "Compile with .NET Native tool chain" is checked on in UWP->Properties->Build, nothing happens. If "Compile with .NET Native tool chain" is unchecked, then the line appears where the touch occurred.

The repro is at https://bitbucket.org/WillAutio/skiafail/src/master/ I took a previous repro and modified it to show this issue.

No rush - I am off for a few days. Have a good holidays! Thanks for looking at this.

OndrejKunc commented 5 years ago

It looks like a Xamarin.Forms issue, see this answer https://stackoverflow.com/a/44175300/1325023

Not sure if I can prevent this behavior on the library level.

However the fix is easy, just just provide explicit Assembly parameter to your Xamarin.Forms.Init method in App.Xaml.cs inside UWP project:

Xamarin.Forms.Forms.Init(e, new[] { typeof(TouchTracking.Forms.UWP.TouchEffect).Assembly });

Have a good holiday too!

WillAutioItrax commented 5 years ago

@OndrejKunc Excellent! Works like a charm.