Hello all, I'm stumped trying to get a

Text

object's contents in a

@Composable

to update when a global String variable changes. I have a global String

var dataIn = ""

that regularly fills with characters like

data += char

in one function, but I can't get its value change to recompose the displayed

Text

in the other function! I thought it should be doable using

var dataDisplay: String = remember { mutableStateOf(dataIn) }

and

Text(text = dataDisplay)

but it won't update the text display every time a new char is added to the

dataIn

variable. Thanks again!

Why should it change? By definition it is only read the first time when

dataDisplay

is initialised. That’s what

remember

is made for.

This is what I need to get my head around. I might need to use another command?

You’ll have to explicitly update dataDisplay if you want to change it.

Hmm. So once dataIn has been updated by appending a Char, I need to then update the dataDisplay variable somehow?

Why can't you just make your global var a MutableState?

Hey @Zach Klippenstein (he/him) [MOD]! Thanks very much for your onto and attention mate. Yes I did eventually twig, and found that I could indeed use that method! 😆 What more can you tell me about avoiding global vars now? Thanks!