kotlinlang #compose

For Compose in an RxJava codebase, is there any reason to use LiveData? I know with regular databinding, LiveData works better in handling lifecycles, but was wondering if Compose like LiveData better than BehaviorSubjects? (we already know Compose likes coroutine stateflows better...just not ready to go full coroutines yet)...

10 replies · 3 participants

Piotr Prus

10/01/2021, 2:17 PM

I got ArrayIndexOutOfBoundsException in composition. The problem is that I do not know at which function this error occurs. I have a view with bottomSheetLayout and sometimes I got this ugly error that crash my app. More in 🧵

5 replies · 2 participants

Marko Gajić

10/01/2021, 2:38 PM

Scaffold seems to introduce an unnecessary GPU overdraw layer (an empty screen turns blue just due to Scaffold). Anybody knows a reason for this and should there be a fix?

➕ 1

1 reply · 2 participants

Anthony Martin

10/01/2021, 3:32 PM

Does

AlertDialog

work with Compose

Preview

? I can't get it to work as it's saying "_The graphics preview in the layout editor may not be accurate - The preview does not support multiple windows._" Just trying to gain an understanding on what's doing wrong. Code:

@Preview
@Preview(uiMode = Configuration.UI_MODE_NIGHT_YES)
@Composable
private fun SimpleComposeUIPreview() {
    AppTheme {
        DialogUI(
            message = "This is an example dialog message...",
            onPopBackStack = {}
        )
    }
}

@Composable
private fun DialogUI(
    title: String = stringResource(R.string.title),
    message: String,
    positiveBtn: String = stringResource(R.string.pos),
    onPopBackStack: () -> Unit
) {
    AlertDialog(
        onDismissRequest = onPopBackStack,
        title = {
            Text(text = title)
        },
        text = {
            Text(text = message)
        },
        confirmButton = {
            TextButton(
                onClick = onPopBackStack,
            ) {
                Text(positiveBtn)
            }
        },
    )
}

Using version 1.1.0-alpha04 for Compose

🇳🇴 1

🧵 3

2 replies · 2 participants

alorma

10/01/2021, 4:12 PM

I've built compose settings library to build settings screens easily with compose: https://github.com/alorma/Compose-Settings Also, added support for preferences so state persists across sessions. Any feedback is welcome!

👍 1

4 replies · 3 participants

Alex Vanyo

10/01/2021, 5:37 PM

📣 ⌚ If you are interested in Compose on Wear OS, or you’ve already been using it and have feedback, we’d love to hear it over on the new #compose-wear channel!

⏳ 1

⌚ 9

3 replies · 3 participants

Miguel Vargas

10/01/2021, 5:38 PM

Is something like this possible?

val composables: List<@Composable () -> Unit>

someComposableLoopingScope(composables) { composable ->
  composable.invoke()
}

2 replies · 3 participants

Rafs

10/01/2021, 7:23 PM

In my

BottomSheetScaffold

I can actually see the BottomSheet flying in from the top of the page to the bottom when the app starts. This happens when I set the

initialValue

BottomSheetValue.Expanded

, is this actually intended behavior, or am I doing something horribly wrong? Screencap in thread....

7 replies · 3 participants

Colton Idle

10/01/2021, 7:43 PM

If I have a generic list of composables...

List<@Composable () -> Unit>

is it possible to write an if/when statement on what to do if

mylist[0]

is of type

MySpecialButton

13 replies · 6 participants

Daniele Segato

10/01/2021, 11:24 PM

Hi, I've noticed

Swipeable.animateTo

throw a

JobCancellationException

when it's done instead of just terminating. (actually

ModalBottomSheetState.show()

and

ModalBottomSheetState.hide()

. Is this a bug or was a design decision? And in the latter case what motivated it? (more details in thread)

10 replies · 3 participants

brabo-hi

10/02/2021, 6:49 AM

Hi, i am trying to get a a screen with 3 sections, top, body, bottom, using contraint layout. Top and Bottom should be fix, and body a lazyColumn list

🧵 1

9 replies · 3 participants

AmrJyniat

10/02/2021, 7:58 AM

How to check if an integer represent a drawable recourse or not in compose?

5 replies · 3 participants

Mohammad Sianaki

10/02/2021, 1:28 PM

Hi, How Can I animate a

Text

between two

TextStyle

7 replies · 2 participants

Zoltan Demant

10/02/2021, 4:33 PM

Im looking for some advice around

VisualTransformation

& formatting duration input! 🧵

13 replies · 2 participants

Orhan Tozan

10/03/2021, 11:03 AM

Since Compose v1.0.3 supports kt 1.5.30, does it also mean that it supports kt 1.5.31?

8 replies · 5 participants

Odin

10/03/2021, 5:22 PM

Is there an alternative to Accessibility testing framework (ATF) in Jetpack Compose? Or is there a way to interop into using ATF in Compose? 😃

1 reply · 2 participants

andrew

10/03/2021, 5:48 PM

enum class DarkTheme(private val _enabled: @Composable () -> Boolean) {
    NO({ false }),
    YES({ true }),
    AUTO({ isSystemInDarkTheme() });

    val enabled: Boolean
        @Composable
        get() = _enabled()
}

4 replies · 2 participants

Lilly

10/03/2021, 11:14 PM

I have problems to arrange/align a text in a

Box

with a vector image on various devices. I would like to scale the image to

FillWidth

but this has the side effect that the height is different on various devices and so the bottom padding too. How can I arrange the text in the center of the gray area so it has the same position on all devices? What I also don't understand is why the smaller preview looks different on real device, although the given specs and the specs of device are the same (device = "spec:Normal;480;800;px;320dpi").

2 replies · 2 participants

gabriel dean

10/04/2021, 7:05 AM

I have problem when using AndroidView in composable function. I have simple UI

AndroidView(factory = {
    EditText(it)
},modifier = Modifier.fillMaxWidth().wrapContentWidth())

I clicked mutiple "tab" on keyboard and editext height got full screen. When I pressed delete button on keyboard multiple times, it got a bit delay to resize editext height.

5 replies · 2 participants

Mini

10/04/2021, 9:01 AM

• Navigation Compose’s

NavHost

now always uses Crossfades when navigating through destinations. (I07049, b/172112072) Is there no way to turn this off?? As in, I dont want any animation at all

4 replies · 3 participants

myanmarking

10/04/2021, 9:22 AM

What ways there is to to get the proper textColor given the background. I know contentColor works for Surface with color params. What are the other cases ?

7 replies · 3 participants

AmrJyniat

10/04/2021, 11:09 AM

I wonder what is the best way to make input validations to produce the same validation results on two sides(VM and Compose) and make it generic as much as possible.

1 reply · 2 participants

jossiwolf

10/04/2021, 12:26 PM

Is there a ticket open to track progress on possible Window APIs?

2 replies · 2 participants

Hachemi Hamadi

10/04/2021, 1:26 PM

Is there any library / way to create something like Event Bus in Jetpack Compose

5 replies · 4 participants

adjpd

10/04/2021, 2:30 PM

What's the main different, and use case, for

Animatable

and

AnimationState

. I see the view pager in accompanist is using

AnimationState

and the docs say the advantage

Animatable

has over

AnimationState

is mutable exclusiveness of animation. Does anyone have any other insights?

4 replies · 4 participants

Adrien de Sentenac

10/04/2021, 3:51 PM

How to make a lazy grid with 1 column with items that match the width of the biggest one?

6 replies · 3 participants

nglauber

10/04/2021, 6:54 PM

Maybe this is a dumb/weird question, but here it goes… I’m facing an issue on Accompanist Navigation Compose Material 0.19.0… I’m not able to use

items

in a

LazyColumn

declared inside of a

bottomSheet

route 😕 No errors, but the bottom sheet is not shown… If I wrap my

LazyColumn

with a

Scaffold

, it works… (but it has some space below the content)… Maybe it’s a measurement issue? 🤔

26 replies · 5 participants

Colton Idle

10/04/2021, 7:02 PM

Compose/navigation component/lifecycle question. My app has a home screen that is the main page. If your auth token is no longer valid. You are directed to the login screen. When you login, the login screen is popped and you see the home screen. But you see the "old" home screen. Is there anyway to manually clear my home VM and then when popping from the login screen the home screen reloads with the new auth token (which is potentially a new user altogether)

16 replies · 4 participants

bitkiller

10/04/2021, 10:54 PM

any hint on what to look to investigate the feedback delay (ripple) on button click?

2 replies · 1 participant