I am learning State hosting in jetpack compose. I am trying to separate my variable in single function and view logic to separate function. But I am getting weird issue in my code. Can someone guide me on this?

Another question, I am using compose 1.1.1 in my jetpack compose. I am getting error on my weight modifier. Can someone tell me how can I get my weight modifier in Row?

Why common Compose operations like clip and border allowing creation of shapes are not supported in the Android framework or are somehow hidden from the average developer?

Question about

LazyLayout

, I'm working on a lazy tiles based maps in Compose and using

LazyLayout

to lazily load the tiles as I scroll in both X and Y directions. The logic works well and I'm able to get the performance that I like. The only thing missing is prefetching/ pre-composing and measuring the out of bounds items. Looking at the

LazyList

implementation, it uses a modifier implementing

ModifierLocalProvider<BeyondBoundsLayout?>, BeyondBoundsLayout

, I am trying to do the same and applied to modifier to my

LazyLayout

but the

layout

function inside that implementation is never called. I know this is experimental, but any ideas on how to get the beyond bounds modifier to work ?

👋 If there’s

drawBehind

to optimize animated background, is there an equivalent for animating alpha?

I need to animate scale up image (and then scale down) and after this animation finishes, i need to change image drawable and change its tint color. Getting lost in so many options https://developer.android.com/jetpack/compose/animation#animatable. Please help

Is it possible to request focus to a (text field) composable without it showing the keyboard? Im using `FocusRequester.requestFocus`; code in 🧵

I am curious - are you doing optimizations like mentioned here: https://multithreaded.stitchfix.com/blog/2022/08/05/jetpack-compose-recomposition/? Especially unstable lambdas are something I've never thought about before.

This message was deleted.

How do you load a lot of items in

ExposedDropdownMenu

UI freezes for me if there are to many items.

Is it possible to get exact offset from

TextLayoutResult

, kinda like

getOffsetForPosition

but returning null, if there is no text at coordinates? E.g. if text is wrapped and second line is shorter, I would like to know if coordinates are over real text, or over blank part here ->

were all the submissions to

#AndroidDevChallenge

ever aggregated anywhere for future learning? I’m having a hard time trying to actually find all the cool projects people made

Hi everyone! Im trying to count my onClick events in my composable function and overload this counter on callback. So I define var counter = remember{0} But this counter is reset always. I dont want to define the counter as remember{mutableSatateOf(0)} becuase by increase the counter I dont want to trigger recomposition. So how can I define remember parameter that not override by recompostion ?

What would be a good pattern for calling

WebView.evaluateJavaScript()

from Compose, when using UiModels from a ViewModel? The assumption being that the

WebView

is wrapped in an

AndroidView

Does anyone know when

Abstract Composable functions cannot have parameters with default values

will be fixed? Googling for it only returns one tweet with no answer…

I have an

IconButton

, with an

Icon

inside, but the icon is dark and so the dark touch ripple is kind of hard to see. Is there any way to inverse that somehow so the touch ripple brightens up the inner

Icon

?

I have few doubt using viewmodel in composable function. I am adding my activity code, I am passing my intent bundle. 1. So I want to ask is this best practise to use viewmodel like this to create

viewmodel

global in the activity?

Hi, Everyone Please let me know what`s wrong with this code, Please check the attached video. I have three different textx on all pages.

Hi i am attempting to employ a

androidx.compose.material3.ExposedDropdownMenuBox

to implement an Autosuggest drop down list

How do I set

Switch

colors in my theme?

Do I have to create a custom composable where I set

colors

to my theme colors? Sounds not optimal.

If an interface is annotated with

@Immutable

, but is implemented as a value class that wraps a domain class (without

@Immutable

), does compose still consider it immutable? Code example in thread 🧵

Is there any helper function that darkens the compose color?

var thresholdProgress: Float by rememberSaveable(uiState.thresholdProgress) {
        mutableStateOf(uiState.thresholdProgress)
    }
            Slider(
                value = thresholdProgress,
                onValueChange = {
                    thresholdProgress = it
                    viewModel.onThresholdProgressChanged(it)
                },
            )

fun onThresholdProgressChanged(progress: Float) {
        val progressStep = (progress * 100).roundToInt()
        val lux = if (progressStep <= 50) {
            progressStep
        } else {
            50 + (progressStep - 50) * 5
        }
        _uiState.update { it.copy(lux = lux) }
    }

uiState.lux

is used for continuously updating the lux number in the UI as user drags the slider.

I have a

Box(modifier = Modifier.draggable()) {
  Button(modifier = Modifier.clickable())
}

If I start the drag inside the button, clickable() completely intercepts it, but I want it to behave like this: if drag touch slop is passed, then clickable() should be ignored and drag should be started. Is there a way to configure this?

I created a branch experimentally converting a project at work from Views to Compose to show the rest of the team. I’m liking the diff numbers

+17,613 −188,973

. Same functionality. Looks like Compose could help us get this repo to a much more manageable size.

Hello all, having problems trying to set the height of a Row to the full height based on its childrens height. If you can take a peek, thanks in advance. Code in comments

I have a media player dependency which is required in one of my composable screen. I don't know how do I inject media player in my compose. Should I pass media player throughout the navGraph or should i inject in viemodel and create function in viewmode like play pause etc.

class RingtonePlayer @Inject constructor(
	@ApplicationContext private val _context: Context,
	audioManager: AudioManager
): RingtonePlayerAdapter(audioManager) {
}

I'm getting an error when trying to navigate to another graph with arguments. I'm not sure what I'm doing wrong here This is the error I'm getting:

java.lang.IllegalArgumentException: Wrong argument type for 'userId' in argument bundle. integer expected.

code:

object ProfileDestination : GenericDestination {
    override val route = "profile_route/{userId}"
    override val startDestination = "profile_destination/{userId}"
    const val argsUserId = "userId"
    operator fun invoke(id: Int) = "profile_route/$id"
}

fun NavGraphBuilder.profileGraph() {
    navigation(startDestination = ProfileDestination.startDestination, ProfileDestination.route) {
        composable(
            route = ProfileDestination.startDestination,
            arguments = listOf(navArgument(ProfileDestination.argsUserId) {
                type = NavType.StringType
            })
        ) { Profile() }
    }
}

navController.navigate(ProfileDestination(1))