Hey guys. I faced a weird buggy behaviour of Compo...

# compose

[Alexander Zhirkevich]

Hey guys. I faced a weird buggy behaviour of Compose Path operations. More in 🧵.

[Alexander Zhirkevich]

I try to create a combined path (for example donut) using path operations.

val bigCircle = Path().apply {
    addOval(Rect(0f, 0f, 100f, 100f))
}

val smallCircle = Path().apply {
    addOval(Rect(30f, 30f, 70f, 70f))
}

val donut = Path.combine(PathOperation.Xor, bigCircle, smallCircle)

drawPath(donut, Color.Black)

[Alexander Zhirkevich]

And this do the job:

[Alexander Zhirkevich]

But when i do the same but add a donut path using addPath to other path like this:

val donutWithSomethingElse = Path().apply {
    addPath(donut)
}

drawPath(donutWithSomethingElse, Color.Black)

[Alexander Zhirkevich]

I am getting this:

[Alexander Zhirkevich]

Previously i used to do the same with android.graphics.Path and it worked like a charm.
And when i started to migrate the code to Compose i faced this issue

[Alexander Zhirkevich]

Should i fill up an issue report or am i doing something wrong?

[ephemient]

fill type is set by combine but can't be by addPath

[ephemient]

if you flip the winding order of one of the circles it should work