Is there a way to apply a VisualTransformation or something similar to BTF2 at this point?

This https://cs.android.com/androidx/platform/frameworks/support/+/androidx-main:compose/[…]nsformation&sq=&ss=androidx%2Fplatform%2Fframeworks%2Fsupport is what we got for btf1. Otherwise you probably either gotta do something yourself, or wait for 2

I've been using a visualTransformation with the original BTF, but I don't know how to apply it to BTF2. The original BTF takes it as a parameter, and I used it both there and on the decoration box. BTF2 doesn't have that parameter, but I still used it on the decoration box, but it doesn't show it.

Isn’t

InputTransformation

the alternative in BTF2? https://developer.android.com/reference/kotlin/androidx/compose/foundation/text2/input/InputTransformation

I'm not positive, but it looks like the decoration box just uses it to compute a state (it's just an enum), so I guess displaying the result in orig BTF happens from its visualtransform parameter

Maybe take a step back here, what is it that you are trying to achieve in the first place?

InputTransform happens between user input and saving the field's value. I'm only trying to transform the visual output

Aha, so something like this https://cs.android.com/androidx/platform/frameworks/support/+/androidx-main:compose/[…]rmation.allCaps&ss=androidx%2Fplatform%2Fframeworks%2Fsupport doesn’t just change the visuals, but translates the value you get out of it too then you say?

2023-09-20 03_36_05-.png

I’ve seen this the other day https://x.com/halilozercan/status/1700187684474438093 which makes me think there must be a way to edit the output UI without editing the text field state itself, but I haven’t played enough with BTF2 myself to know how it’s done 👀

I think that's the codepointsTransform. it changes each character 1:1, so perf form hiding passwords

It's not yet available but is planned. Zach talked about this (starting from 12700).

awesome! thank you

I just talked about this at droidcon NYC! We’re working on a new API for this: https://speakerdeck.com/zachklipp/reimagining-text-fields-in-compose-dcnyc-23?slide=44

awesome! I'm a huge fan so far. Especially how it keeps outside updates separate during editing. To me, that solves a lot of tricky problems with keeping the data in sync, but also the cursor where the user expects it.