kotlinlang #compose

Good morning! Does anyone knows if there is a way to create Composable elements at runtime? I am working on a sort of playground but I am struggling with creating the preview components.

rajesh

08/11/2021, 5:19 PM

How can I check if text is overflowed or not? I want to show

See more/less

based on text displayed.

➕ 1

carbaj0

08/11/2021, 5:57 PM

I have a custom button and I want to allow only some modifiers like weight or width, for example I don't want to allow user to change button height. Is there any way to place restrictions on modifiers?

Fudge

08/11/2021, 5:58 PM

Hey, any idea on how to approach debugging why a composable doesn't get recomposed? I've refactored my code slightly and now it no longer recomposes a part of the UI for seemingly no reason. Another part does get properly updated though.

PHondogo

08/11/2021, 6:40 PM

Anybody know what can it be if changing mutable state value doesnt trigger recomposition of composable that is using this state object? Is there any limitations of using state objects?

enighma

08/11/2021, 8:55 PM

First of all great work on making animations/transitions happen with navhost @Ian Lake + team That being said, whenever I try adding my own, they look kind of broken. I have a hard time setting up a nice transition with

slideIn

fadeIn

etc. Is this a known issue? I.e is the solution to dial in the parameters?

Chuck Stein

08/12/2021, 12:48 AM

Is there any way to add a callback for when the user closes the software keyboard in Compose? I want to unfocus my TextField when the user closes the keyboard, so that they don't have to press the back button 3 times to exit a search query. (Currently it's once to close the keyboard, a second time to unfocus the TextField, and then only the third time does my custom BackHandler get called, to exit the search page.)

Anton Dmytryshyn

08/12/2021, 2:55 AM

What would be the best way for me to create spacing between the last item of a lazy list and a FAB in the scaffold encompassing the screen UI. I know that I can easily add an item trailing the list with a Spacer of height 64.dp (This is due to the 48.dp Extended FAB default minheight and a 16.dp spacer from the bottom of the fab to the bottom Nav bar), but I'm wondering if there is a better approach.

➕ 1

Benyam Seifu

08/12/2021, 3:41 AM

I am working on a form and I wanted to enable autofill for a birthdate text field. But autofill BirthdateFull type is not working. However other types like BirthdateMonth,BirhtdateDay and BirthdayYear are working. Is there anything I am missing? Any help or way arround is greatly appreciated:)

➕ 2

Tin Tran

08/12/2021, 11:23 AM

Hi. This maybe a noob question but when does remembered state is cleaned?

mmaillot

08/12/2021, 11:44 AM

Hello, I’m looking to do a simple view (see screenshot). I’ve 3 compose : MainScreen, Phoneme and Word. The Phoneme is a Row with 3 images inside (lower, upper and cursive). The word is a box with only one image. The drawable for Image are big. I have only the png format so I drop them directly in the drawable folder. I want to get the result in the second screenshot. (code in the thread).

rajesh

08/12/2021, 11:47 AM

How should I collect lazyPagingItems in compose. I'm using below code but it says

Type 'LazyPagingItems<Post>' has no method 'getValue(Nothing?, KProperty<*>)' and thus it cannot serve as a delegate

and I've already imported

import androidx.compose.runtime.getValue

class ProfileViewModel @Inject constructor(
    private val profileRepository: ProfileRepository
) : ViewModel() {
val selfPosts: Flow<PagingData<Post>> =
        profileRepository
            .getSelfPosts()
            .cachedIn(viewModelScope)
}

fun ProfileScreen(profileViewModel: ProfileViewModel) {
val selfPosts by remember(profileViewModel) {
        profileViewModel.selfPosts
    }.collectAsLazyPagingItems()
}

Florian

08/12/2021, 12:05 PM

How do I get an activity-scoped ViewModel in Compose? Do just call (

hilt

)`viewModel()` in the activity and pass it to my Composable screen?

bodo

08/12/2021, 12:20 PM

Hi. I have added the following dependencies:

implementation(composeUi)
implementation(composeMaterial)
implementation(composeUiTooling)
implementation(composeFoundation)

this adds 3,7mb to my project with and without proguard with no special rules… is proguard not working for compose???

Shakil Karim

08/12/2021, 12:33 PM

When this exception usually occurs? I got this exception in Logs

Unsupported concurrent change during composition. A state object was " +
    "modified by composition as well as being modified outside composition

Todor Grudev

08/12/2021, 1:07 PM

I am trying to load a simple pdf in a

WebView

(code in 🧵) but it doesn’t seem to work, is there a potential issue with

WebView

and compose?

rajesh

08/12/2021, 1:29 PM

Is there any way (or heck) to modify paging (3) data to show ui changes in compose? Like modifying certain object property from paging list when user interact with ui. Paging doesn't seems to support data modification.

Marko Novakovic

08/12/2021, 4:08 PM

am getting

Failed to get visible insets. (Reflection error). No field mVisibleInsets in class Landroid/view/View$AttachInfo; (declaration of 'android.view.View$AttachInfo' appears in /system/framework/framework.jar!classes3.dex)

any help? not crashing, app still works fine but I started to see it in the logcat

Marko Novakovic

08/12/2021, 4:25 PM

problem with Accompanist navigation animations.

expandIn

and

shrinkOut

always expand in/shrink to top left corner. setting `expandFrom`/`shrinkTowards` has no effect and default value for those two is

Alignment = Alignment.BottomEnd

Marko Novakovic

08/12/2021, 4:44 PM

any ideas on how to prevent this double click navigation?

➕ 1

Sunny

08/12/2021, 5:57 PM

so we will have to wait for compose team for this effect in jetpack compose? https://developer.android.com/about/versions/12/overscroll

theapache64

08/12/2021, 6:59 PM

🧭 Navigation Compose : How do i start (
navigate
) a page (
composable
) as transparent? ✏️ Rephrased : How to overlay one

composable

on another

composable

when using

navigation-compose

library? OR how to create transparent page?

josefdolezal

08/12/2021, 9:23 PM

Hey folks! 🖖 Is there some API (modifier?) which would allow me to add show custom attributes of compose view in layout inspector? We are doing runtime inspection using 3rd party tool and there doesn’t seem to be an easy way to tag views so that we are able to find them easily..

Ashu

08/12/2021, 9:30 PM

Hi Composers I am trying to animate LazyColumn a little bit smoothly but have no idea what I am doing. What I am trying to do is to allow user to scroll a little bit even if they are already at the top. And when the user flings and hits the top of the list, I want to animate that with anticipate or overshoot kind of easing. I am having a hard time creating a fling behavior for that. Can someone please help me with it?

➕ 1

FunkyMuse

08/12/2021, 10:15 PM

hey guys, what i'm doing wrong (code in thread)

PHondogo

08/12/2021, 10:26 PM

Hello! What is the best way for editing tree like data with sub composables and data validation? With possabiliy to allow to save data only if alll nodes are valid.

Zach Klippenstein (he/him) [MOD]

08/12/2021, 10:33 PM

I’m not sure if this is something any of yall would find useful, but I wrote a little dev tool for poking around in the data stored in the slot table. Here’s the code. If it seems interesting to people then I can release it with Radiography.

Kapture 2021-08-12 at 15.24.12.mp4

:kotlin-intensifies: 7

👍 7

👍🏼 1

08/12/2021, 10:46 PM

Hey guys, I have a question about

setContent{}

. I have a shared viewModel between a Fragment and an Activity. In the activity xml I have a

ComposeView

and in

onStart

I’m attempting to update that ComposeView like this

Code block 1

Inside the composable view is something like

Code block 2

The problem is that

setContent

in the activity is only being called when the activity is attached/detached. It is not observing the data stream but if it switch the code to this(still in onStart):

Code block 3

This works fine. Is there something I’m missing about setContent{} in the Activity?

:thread-please: 1

Florian

08/12/2021, 11:27 PM

Can I have activity-wide app bar menu items if I have separate Scaffolds on each screen? I guess no

Title

Florian

08/12/2021, 11:27 PM

Can I have activity-wide app bar menu items if I have separate Scaffolds on each screen? I guess no

kevindmoore

08/12/2021, 11:29 PM

I think you would have to have just 1 Scaffold and then you would have to communicate Toolbar item changes

Florian

08/13/2021, 1:17 AM

ok thank you

so instead I put the shared item on each screen manually?

Berkeli Alashov

08/13/2021, 3:23 AM

If you have separate Scaffolds, just have the same AppBars or AppBarMenus composables that you would pass to separate Scaffold or AppBars

Florian

08/13/2021, 10:40 AM

@Berkeli Alashov thanks, that sounds like a good idea

View count: 8