Flutter Web issue. about flutter_circle_color_picker

[rydmike]

Hi,

It is the color wheel/circle in the CustomPaint that uses SweepGradient API call that is is not yet implemented in Flutter WEB that causes the crash when this package is used on Flutter Web.

I had a similar issue and reported it here:
flutter/flutter#57752

My report also contains a rough example of how the color wheel/circle can be drawn using alternative API that works on Flutter WEB too. It is included in the above same issue report and can be seen in a DartPad here:
https://dartpad.dartlang.org/dc8a915f169455463e4e2016619e00bb
The DartPad shows this issue alongside a workaround. The example work-around was just a first rough example/draft, it can be cleaned-up and shortened further. The example is MIT license so author of this package is welcome to use it to make a fix for this component too, if you so wish. I don't have time right now to look into the details of this package and make a pull request correction. (I might find some time for it later... depends 😀 )

My above Flutter issue report was a duplicate of an already known issue, the original issue report, that is being tracked by Flutter team, can be found here:
flutter/flutter#41389

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Sidenote

A Flutter Web demo/example of a color picker that includes a similar wheel/circle component under its "any color" segment in its color picker, can be seen here:
https://rydmike.github.io/colorpickerdemo/#/
It is using the above described work-around to draw the color circle.

This Tweet thread explains its usage scenarios a bit.
https://twitter.com/RydMike/status/1266037341413654531

[itome]

This is already fixed in current stable version(flutter v2.0.4).
Thank you for your reporting!