if I remove the comment sends the error cc

Question

if I remove the comment sends the error cc < Adam Powell>

Mariano Zorrilla · Answer

I d tried with state directly with a fun Composable etc and nothing and there s no info online

Adam Powell · Answer

You are indeed calling a composable function from a non composable function as the error suggests slightly smiling face

Mariano Zorrilla · Answer

how do I add then a new item to my list so my AdapterList has more values

Mariano Zorrilla · Answer

I m clueless sorry

Adam Powell · Answer

It s ok slightly smiling face lots of new stuff in play here

Adam Powell · Answer

There are two things you need to accomplish add more data and make sure compose knows about it to update

Mariano Zorrilla · Answer

I know yum trying to get lot of info to make a Meetup help folks over SoF and Medium and trying to investigate A LOT

Adam Powell · Answer

You ve declared ListCounter to be ` Model` which will notify compose if any of its vars change but you re not changing one of its vars you re changing a mutable list contained therein

Adam Powell · Answer

You ll want to remove ` Composable` from your `emitter` it doesn t need to be special and you don t want to wrap the change in `state ` that s for declaring a tracked `MutableState lt T gt ` and `remember `ing it at that point in the composition You already have your state object and don t need to create another

Adam Powell · Answer

You have two ways to go you can make the mutable list changes visible to compose or you can use immutable lists and change the model class var that is already tracked by compose

Mariano Zorrilla · Answer

thanks and how to I make my mutable list visible to compose

Adam Powell · Answer

You can use `modelListOf` instead of `mutableListOf`

Adam Powell · Answer

If you go that direction you should make the list a `val` rather than a `var`

Mariano Zorrilla · Answer

life saver Thanks

Mariano Zorrilla · Answer

this March 18th I ll do a talk about Jetpack Compose in Argentina and was planning to host one in San Francisco when I get sure there s not health issues for Jetpack Compose Flutter and Swift UI that I think it will be awesome to compare all new declarative UIs

Mariano Zorrilla · Answer

I ll add you to the slides yum

Mariano Zorrilla · Answer

is there any way to get the AdapterList current index

Zach Klippenstein (he/him) [MOD] · Answer

Call `withIndex ` on your list before passing it to `AdapterList`

Mariano Zorrilla · Answer

Thank you so much I also noticed adding items to modelList is ok but removing creates an out of bounds exception

Mariano Zorrilla · Answer

withIndex toList over AdapterList works as well for index slightly smiling face

Adam Powell · Answer

please file a bug for the removal thing so we can investigate

Adam Powell · Answer

you might also find it useful to experiment with the `kotlinx collections immutable` library s `PersistentList` and assign the new immutable lists to a model field or `State lt T gt ` we use those collections internally in compose so it s not going to add any more overhead to your apk size than is already there

Mariano Zorrilla · Answer

Thanks I m trying to break it wink to check all I can do with AdapterList

Mariano Zorrilla · Answer

I ll check that and file the bug

Adam Powell · Answer

AdapterList is a very early prototype of the API shape and some approaches to the internal composition and layout model for virtualized layouts like this I m sure there are many ways to break it at the moment slightly smiling face

Ryan Mentley · Answer

If you did file that bug please send it to me I am aware of it from a StackOverflow post but hadn t filed an issue with a repro case yet

Ryan Mentley · Answer

If you haven t I ll file it soon

Ryan Mentley · Answer

the removal bug is now fixed <https android review googlesource com c platform frameworks support + 1282253>

Mariano Zorrilla · Answer

Amazing Thanks