Hey there, do you know if there is a composable li...

# compose

[Stefano Rodriguez]

Hey there,
do you know if there is a composable like this one for Flutter?
I’ve managed to kind of replicate the functionality that I required with a combination of a WithConstraints composable and a drawLayer modifier with scaleX and scaleY, but it was much more cumbersome to achieve my expected result
https://api.flutter.dev/flutter/widgets/FittedBox-class.html

[Adam Powell]

Should be doable with just a modifier, no WithConstraints needed

[Christian]

@Adam Powell do you have sample code? or any reference material to look into?

[Adam Powell]

I would have to look into what flutter's FittedBox does precisely, but from the docs it looks like it applies a scale, potentially a clip, and performs measurement and positioning, probably modifying the constraints for the content

[Adam Powell]

So an implementation of this would probably look like

fun Modifier.fittedBox(
  // params
) = composed {

[Adam Powell]

Use a Modifier.layout { to do the measurement and positioning chained together with a .drawLayer after it to provide the scaling, and an optional clip before the layout if needed by the mode parameter

[Adam Powell]

With a remember { mutableStateOf(...) } to share the computed scaling factor between the layout modifier and the drawLayer