Does Compose provide a way to measure intrinsic text width/height, synchronously, offscreen OUTSIDE ...

# compose

[Brian G]

Does Compose provide a way to measure intrinsic text width/height, synchronously, offscreen OUTSIDE of @Composable function? I'm integrating with a legacy system and it requires measuring certain things ahead of time, with View's you can simply do:

val view = MyView(context)
view.measure(widthMeasureSpec, heightMeasureSpec)
return Pair(textView.measuredWidth, view.measuredHeight)

I guess I could use ComposeView for this but I'm wondering if there is something more directly available in Compose API.

[Adam Powell]

Can you describe the system you're working with a bit more? What is being measured and why?

[Brian G]

It's a custom layout system that's badly integrated into Android (trust me, I'm trying to migrate away ASAP). I need the intrinsic width/height of a TextView specifically, as we still use Android to render the text.

[Brian G]

If there's a lower level API to calculate intrinsic text size specifically (with all the same font/formatting params as Text()), that would also work.

[Adam Powell]

There is but its name escapes me at the moment, @Siyamed probably knows it off the top of his head or you could search back in this channel's history for text measurement

[Brian G]

Ahh, I found TextDelegate used by CoreText which might be it, it's marked as internal but looks like it will work 🙂

[Adam Powell]

I think there was something else that isn't marked internal. Expect anything marked internal to change in incompatible ways between stable releases.

[Brian G]

Yeah I see that internally uses MultiParagraphIntrinsics which is not marked internal. Also found ParagraphIntrinsics . Cool! I think one of those will work for my silly use case.

[Brian G]

Better yet, there's Paragraph which takes a width parameter, this is exactly what I need 🙂