Hi again. I'm trying to build a Canvas, but I don'...

# compose

[loloof64]

Hi again. I'm trying to build a Canvas, but I don't know how. I've been looking at https://developer.android.com/reference/kotlin/androidx/compose/ui/graphics/Canvas, but Canvas is an interface, and I don't know if there is a class implementing it.

[Joost Klitsie]

What are you exactly trying to do?

[loloof64]

I'm trying to draw a yellow circle inside a red rectangle. (I'm going to play with animations)

[Joost Klitsie]

I am using a DrawModifier

[Joost Klitsie]

to draw stuff

[loloof64]

Thank you. I'm gonna look at its definition 😃

[Joost Klitsie]

override fun ContentDrawScope.draw() {
 // Call drawing functions

[Joost Klitsie]

I am unsure if this fits your exact needs, but might be a good starting point 🙂

[loloof64]

Thank you. I'm going to look at the ContentDrawScope documentation also, and then try to implement it 🙂

[Joost Klitsie]

Im adding a DrawModifier

[Joost Klitsie]

Box(modifier = Modifier.myDrawModifier) {.. }

[Joost Klitsie]

fun myDrawModifier(): Modifier = composed {
    return SomeDrawModifier()
}

private class SomeDrawModifier() {
}: DrawModifier {
    override fun ContentDrawScope.draw() {
    }

}

[loloof64]

Thank you very much 🙂 Also, I think I had the wrong import : I should use import androidx.compose.foundation.Canvas

[loloof64]

Finally this worked :)

Yellow ball in red background