Is there a way to draw based on the size of an ele...

# compose

[Fudge]

Is there a way to draw based on the size of an element?
Something like

Layout(children = {Text("Hello")},  layoutBlock = { measurables, incomingConstraints ->
    val sizeOfTheHelloText = /*calculate size*/
    Draw {
    /* draw some special border around the text */
    }
}

Or

OnChildPositioned(onPositioned = { coords->
    Draw {
    /* draw some special border around the text */
    }
}) {
    Text("Hello")
}

The problem lies in Draw, as 'there is no composition context' there. Getting the size of the text I managed to figure out how to do.
For context, I'm trying to make a button that fills up like a progress bar.

[Andrey Kulikov]

yes, you can't put Draw inside layoutBlock or onPositioned callback as both of them are executed not during the composition, but after when the underlying android view starts to be measured

[Andrey Kulikov]

but actually Draw already has what you need. the full signature is Draw { canvas, parentSize -> your code }

[Andrey Kulikov]

where parentSize is a pixel size of the parent layout for this Draw

[Fudge]

Yeah you're totally right. Don't know how I missed that

[Andrey Kulikov]

you can find a lot of examples where we use parentSize in our material components