material. Jan 14, 2023 · 7. For small, static lists, a Column might suffice. I encountered some performance issues on release build. But as I mentioned earlier, this calculation depends on the height of each item ( itemLengthInPx ), and it works perfectly if it's the same for all the views. Color @Composable fun MyScreen() { val listItems = (1. It’s a vertical list that only composes and lays out the visible items, making it highly efficient for displaying large datasets. Nov 7, 2023 · I've attempted to wrap my LazyColumn in a SelectionContainer within Jetpack Compose, but it's currently preventing me from selecting text across different items in the list. PagingConfig(pageSize = PAGE_SIZE, enablePlaceholders = ENABLE_PLACEHOLDERS) Apr 17, 2021 · Problem : TextField (inside lazy column) text goes below the keybaord. But the item list is, I hope, being injected by you so meaning you have control over it. animateScrollToItem(0) // scrolls to first item. Providing a stable key enables item state to be consistent across data-set changes: LazyColumn {. Also you can specify contentAlignment = Alignment. Mar 26, 2023 · This article is all about Jetpack Compose! We’ll be using the Jetpack Compose version of the library, and we’ll dig deep into how it’s working. I’ll repeat my previous example: when Aug 31, 2021 · The lazyColumns are collapsible and expandable. Additional Resources. guesses the last item by subtracting last index of dataset from first visible item and checking if it's equal to visible item count. DisposableEffect import androidx. This works, the problem is when I try to access one of the items of a LazyColumn that is in one of the screens. asFlow(). 1. If the user is seeing the previous message (scrolled to upper Jan 19, 2022 · For some reason LazyColumns do not scroll with a mouse click and move gesture. count = cartItems. The following are the test cases verified1. android-jetpack-compose. That's what makes it "lazy". The chat messages are shown using the LazyColumn. List items are empty2. It emits new Composables as you scroll through it and is still performant, as emitting Composables is relatively cheap compared to instantiating Dec 16, 2021 · LazyColumn has state property, and if you pass your custom value instead of the default one, you can react on the state changes. the inner LazyColumn has a background that spans its items or something), and where that inner list is best represented by a LazyColumn (for eg. LazyColumn inside LazyColumn. With the verticalScroll and horizontalScroll modifiers you don't need to translate or offset the contents. There are no RecylerView s or adapters anymore in Jetpack Compose. answered Sep 12, 2021 at 9:35. If you do not provide this lambda - index in list will be used as key. Pass the modifier object as an argument to the LazyColumn. 0. 3k 19 239 273. Stability: Increase the stability of your Aug 4, 2023 · Jetpack Compose’s LazyColumn and LazyRow components provide a powerful and efficient way to create lists and rows of items in your Android apps. Nov 24, 2023 · In your ChapterColumn, you are using a LazyColumn. It scroll smoothy on Pixel, OnePlus devices, but it's laggy on Samsung device. add, the UI can be updated successfully. Step1: Setting Up Aug 29, 2021 · Update compose version to 1. Dec 18, 2021 · I created an example. because you want item animations out of the box) a workaround is to specify a fixed height for the inner LazyColumn, if it's possible to know it. El componente LazyColumn de Jetpack Compose es una alternativa eficiente a RecyclerView para manejar listas verticales. Explanation : I have a LazyColumn that contains a list of items displaying text fields , In the manifest the activity has windowSoftInputMode="adjustResize" and I am also setting the flag WindowCompat. gradle depending the Gradle version your project uses. size - 1. I am using simplest composables, nothing special. size-1) total height as your last item's height. May 7, 2021 · How to test a LazyColumn items . You should move your sort logic to ViewModel or useCase and create a sort function you can call on user interaction such as viewmodel. ItemDecoration() {. 1. fillMaxSize(), ) { } Also, It works adding Scaffold which Vladislav said. Part 1 3 more parts 3 Android notes: Understanding viewModelScope. Jun 21, 2024 · Scroll modifiers. // Return a stable + unique key for the item. I tried having the LazyColumn only around my infinite list of items and everything inside a Column but that didn't work well with scrolling (and I'm not sure how performance friendly that is). LazyColumn is RecyclerView counterpart of Compose while Column with verticalScroll is ScrollView counterpart. My Apr 15, 2022 · 9. Nov 29, 2021 · 6. A LazyColumn uses fillMaxHeight() by default. e. For me it works as expected. Then into the build. compose:compose-bom:2023. rememberSaveable /** * Static field, contains all scroll values */ private val SaveMap = mutableMapOf<String, ScrollKeyParams>() private data class ScrollKeyParams Jul 11, 2022 · If you don't know total height until last item you will need to use SubcomposeLayout with list that doesn't contain last item and pass LazyColumn height- (items. kotlin. Jan 11, 2023 · Reading through the documentation of Jetpack Compose in Lists and grids I found the following. Apr 11, 2024 · These are some of the key concepts for performance in Compose: Phases: Understanding the composition, layout, and drawing phases is crucial for optimizing how Compose updates your UI. 00; Mac OS Sonoma 14. testing cards + lazy column functions Resources. For LazyRows it is also not possible to scroll with the mouse wheel. } Jul 17, 2023 · Jul 17, 2023. LazyColum only recompose when scroll. Divider import androidx. Jetpack Compose LazyColumn programmatically scroll to Item. Scroll performance in rows are pretty good, but in column performance is very low. compose. Something like this: Box(. onNodeWithTag("tag of LazyColumn") . fun OptionsDetailsList(answerRevealed: Boolean, lstOptions: List<CertAnswers>) {. Improve this answer. LaunchedEffect(key1 = list. 1 and 1. Any suggestions or insights would be greatly appreciated. You could use either performScrollToIndex to scroll to the index of the items that are not in the view tree: composeTestRule. Apr 13, 2023 · Introducing LazyColumn. 20 Mar 7, 2022 · Otherwise, you can use LazyColumn which can scroll to specific item. Declare a LazyColumn composable inside of the AffirmationList() function. The main idea here is to merge your Column with LazyColumn. 1 Sep 16, 2023 · However, when I scroll the lazyColumn downwards, the scroll propagates to the parent BottomSheet, causing it to scroll and disappear. I guess it has to do with making the fullscreen activity. 0-Alpha06 as Skav mentioned. graphics. Dec 6, 2022 · your are essentially creating an entirely new set of list assigning them to your LazyColumn resulting it to re-compose entirely. LazyColumn {. other) directly from Composable builder is a mistake. Keep in mind that cases where you’re nesting different direction layouts, for example, a scrollable parent Row and a child LazyColumn, are allowed: Row(. So I did some digging around the IdlingRegistry and found that unregistering Espresso-Compose Idling resource at the right spot in the test fixed the issue and my UI test passed afterwards. To display many different item types, use the groupBy function. If it doesn't work, this may be a bug described here ( issue tracker ). If lazy column returns count for visible items means that if remove those from your list you'll then get the invisible list and can then perform assertions. ui. 0-alpha07. Compose的声明式、响应式让UI构建变得前所未有的简洁高效。. The verticalScroll and horizontalScroll modifiers provide the simplest way to allow the user to scroll an element when the bounds of its contents are larger than its maximum size constraints. Sep 16, 2021 · You can change the background of the lazy column elements depending on this state. Sep 9, 2023 · This video will show you how to implement a Nested lazy column. performScrollToIndex(position) // position of the item, seems to be 15 in your sample. The LazyListState supports the scroll position via. 82. Also calling otherViewModel. testing cards + lazy column functions. Let’s say they’re LazyColumns on steroids. I listen a Flow from Room and everything works great when reverseLayout = true. Aug 25, 2021 · 1. When new Item get inserted into the database, the LazyColumn scrolls to the bottom and shows last Item just fine. Join Slack. 然而,在大量数据场景下,Compose内置列表组件 LazyColumn Dec 19, 2022 · If you want to add a header before the list of items please add a header as a separate item() before the main items() inside the LazyColumn scope. m. LazyColumn( modifier = Modifier. The performance is not good at all. Follow best practices to optimize your app on Compose. lazy. I had a need to know if one particular item in a scrollable column was currently visible in order to change the visibility of a helper button which scrolls that item into view - I imagine that code could be adapted to observe multiple items, but without knowing your real use case I'm not sure it's a valid answer to your question. UI 1. But I dont want render list until all the query finished, like this: class Repo { private val list = listOf(fileA, fileB) fun query(key: String): Flow<List<Result>> = list. I am using LazyColumn in my project and it is very slow on scrolling the items. because you observe a cold Flow or LiveData (so the initial value is used). Put list getting function in side effect (Launch Effect or other side effects) when list is change side effect automatic recompose your function and show updated list. So what are the things we can improve in this code. The LazyColumn takes the entire screen. val scrollPos = (lazyListState. But if I'm wrong please let me know! May 17, 2022 · a flattened LazyColumn is undesirable, (for eg. Mar 30, 2022 · I'm new to Jetpack Compose and I'm trying to figure out how to recompose a LazyColumn list when user clicks a FloatingActionButton. Nov 18, 2021 · Jetpack compose LazyColumn inside LazyCloumn. Any Composable inside Column with vertical scroll enters composition the moment Column is composed while LazyColumn uses SubcomposeLayout to subcompose Composables on screen and one extra when you reach last visible item on Screen. In RecyclerView, to have a proper margin/padding between items, we need to use ItemDecoration, as per this article. load(sh. padding(. I have a lazy column with lazy rows inside it, like in the image: I am testing on a 2017 middle-quality phone with Android 9. I want the Button to take it's space at the bottom, and then the LazyColumn has the rest of the screen. To add it to your project, you should add the following into your project build. However, for large, dynamic lists, LazyColumn offers superior performance thanks to its lazy rendering. It loads and displays a large quantity of data efficiently by rendering only those items that are currently in the viewport. Use LazyColumn to display items visible on screen. Jan 31, 2023 · For a list, if you want to refresh the UI when its size changes, you can choose val todos = remember { mutableStateListOf<String>() }. launch{} 4 When does Hilt inject field injections 5 Styling a clickable text like TikTok in Android with Jetpack Compose 6 Creating a quick sticky footer for May 21, 2021 · When using ConstraintLayout in a LazyColumn a simple Text does not appear when we simply scroll up and down. something like this: LazyColumn(. map{ it. Center instead of wrapping CircularProgressIndicator with a Column: Apr 9, 2022 · After replacing the second one with the first one, I can't reproduce the crash, both on Compose 1. I created a very small project to show what is the problem in my code. You can use it to set a background color for Apr 23, 2022 · 12. bottom = it. So I disabled it with reverseLayout = false. The Modifier in Jetpack Compose is a powerful tool for modifying the appearance and behavior of composables. Mar 19, 2021 · lastDataIndex - state. – Sjolfr. You might encounter common Compose pitfalls. How to test a LazyColumn items? # compose. SemanticsNodeInteraction. Feb 28, 2021 · I would like my screen to show a scrolling list and a button below it. Set a key for your item. Defer reads as long as possible. Sep 8, 2020 · On the other note, LazyColumn haven't been optimised for scrolling performance yet, but I've just tested on 1. Step 2 — Pick any two/three parameters from the list above and pass Dec 19, 2022 · I'm writing example-screen with using lazyColumn. All these are now handled underneath and our large number of items are still laid out smartly, without causing any performance issues. Also, the scrolling is not smooth. Aug 15, 2021 · To combat this, you can provide a stable and unique key for each item, providing a block to the key parameter. val result = Pager(. items(. Oct 5, 2023 · Learn how to harness the power of Lazy Column in Android Jetpack Compose! In this tutorial, we'll dive into Lazy Column and explore its incredible advantages Apr 9, 2021 · Here is my code: @Composable fun Test(){ LazyColumn() { Text(text = "Placeholder&q Skip to main content Jetpack compose LazyColumn inside LazyCloumn. And the messages are coming from the WebSocket. runtime. horizontalScroll(scrollState) ) {. I suggest you use Modifier as the last argument, so you don't need a comma at the end and you can add/remove/reorder modifiers easily: @Composable. But reverseLayout = true inverts the headers too. firstVisibleItemIndex * itemLengthInPx) / totalLengthInPx. It only works with the mouse wheel so far. spacedBy (10. Release build with R8 enabled. Please take a look. Note: LazyColumn doesn't recycle its children like RecyclerView. See full list on medium. s. query(key) }. Nov 7, 2021 · Expected behaviour: The list smoothly scrolls to the last item whenever a new item is added. pa Jun 4, 2022 · The solution might depend on exactly what you are going for. What I want to achieve is that when scrolling downwards, only the lazyColumn should scroll initially, and after the lazyColumn has reached the top, further scrolling should make the BottomSheet disappear. So any addition other than at the end of the list would trigger a lot of recompositions. In your Scaffold, the content has a PaddingValues parameter, you can use it to add the correct padding. Dec 4, 2023 · Such that I could pass that inside the LazyColumn above. foundation. The application has a bottomBar with 3 items that navigates to the selected screen. As your code is not runnable, I'm giving more a pseudo code, which should theoretically work. performScrollTo fails to scroll to composables that hasn't been already composed. Share. I tried the following, but it did does not work. Pero a diferencia de éste, que carga todas las vistas necesarias para llenar la pantalla inicialmente, LazyColumn solo carga los elementos visibles, optimizando así el rendimiento al manejar grandes conjuntos de datos. Oct 1, 2022 · It's really difficult to track this much code especially on my 13 inch screen. Frame skipping happens when I fast-scroll the list. So the user shouldn't be aware of this collapsing/expanding process, it seems like the list scrolls fluently. Jul 17, 2023 · Test the population of items in Jetpack Compose’s LazyColumn using Espresso by adding test tags, scrolling to specific items, and performing assertions on text values. 05/07/2021, 12 Oct 28, 2022 · After inserting an entry (Word), I want the LazyColumn to scroll automatically to the row with the newly inserted entry (or at least make it visible). 1 watching Jul 7, 2023 · Before we delve into sticky headers, it’s beneficial to understand LazyColumn. Toward the bottom is a FloatingActionButton. Avoid backwards writes. message. The lambda defines the content of each of the items, so you can keep the existing code. fillMaxWidth(), state = listState. 08. sort(sortType) and update value of one MutableState with new or use mutableStateListOf and update with sorted list. If you want to update lazy column (say recompose in jetpack compose) so use side effects. LazyColumn import androidx. Jan 5, 2022 · Make sure you're also using the R8 compiler in the release build. edited Mar 19, 2021 at 17:09. setDecorFitsSystemWindows(window,false) in the onCreate Method before setContent and I want to make text appear above the Jul 7, 2023 · LazyColumn is one of the key components in Jetpack Compose. firstVisibleItemIndex == state. p. size) {. Aug 1, 2021 · 3. gradle or settings. ScrollState import androidx. This does not Jun 8, 2023 · 1 TikTok like navigation with Jetpack Compose and the ModalBottomSheetLayout in Android 2 Proof of concept. Its a simple lazy list with pagination on a lazy row First the Pager on my viewmodel. collectAsState(xxx Apr 5, 2021 · I am trying to work with the compose lazy column, i want each item of my lazy column to have the maximum height , I tried the below code but it is not giving the expected result Code val itemsList: List by mainScreenViewModel. Explore the Semantics tree to make precise assertions on the entire node structure, including text values and custom semantics like drawable resources. There are could be other reasons for this to happen: your ComposeView was added into a LinearLayout with some weight, you applied Modifier. LazyColumn() {. If you want to a dd a header before the list of items please add a header as a separate item() before the main items() inside the LazyColumn scope. L It's pretty much the first paragraph on the official documentation here. LazyColumn is a vertically scrolling list component in Jetpack Compose that efficiently renders large data sets by only displaying the items currently visible on the screen Jul 1, 2022 · Step 1 — Select the Compose UI content to be used by calling the setContent method of the ComposeTestRule in the test file. 0 stars Watchers. Nov 12, 2021 at 11:31. Oct 2, 2021 · As you need to display the progress bar on top of LazyColumn, you need to wrap it with a Box and place ShowProgressBar after LazyColumn. wrapContentSize(unbounded = true) or wrote a custom layout. edited Nov 7, 2021 at 22:59. class ComposeActivity8 : ComponentActivity() { override fun onCreate(savedInstanceState: Bundle Nov 7, 2023 · I'm working on an app using Compose Desktop, and I have a use case where I need to add new items to the top of a LazyColumn without causing the currently visible items to shift or move. Mar 4, 2022 · 5. -----If you like the content, buy me a coffee by Dec 12, 2020 · In JetpackCompose, we can use LazyColumnFor as RecyclerView. I'm curious if there is a way to retain the same text selection behavior in my new Compose structure. Dec 4, 2022 · First create a class with selected variable to toggle @Immutable data class MyItem(val text: String, val isSelected: Boolean = false) Then create a SnapshotStateList via mutableStateListOf that contains all of the items, and can trigger recomposition when we update any item with new instance, add or remove items also. This is important for a smooth user experience. Jul 7, 2023 · val itemList = remember { mutableStateListOf<String>() } val listState = rememberLazyListState() Next, we construct a LazyColumn that takes these items as input. fillMaxSize () to make it fill all the available space, and Arrangement. Endless scrolling in Android with Jetpack Compose. Calculate the current scroll position. The LazyColumn API is built as a DSL, differing from other layouts in Compose. com Mar 25, 2021 · Compose LazyColumn select one item. Get the latest; Stay in touch with the latest releases throughout the year, join our preview programs, and give us your feedback. Jul 25, 2022 · One of the common reasons is nesting layouts like LazyColumn and Column(Modifier. Changing the Item from a ConstraintLayout to a Row fixes the issue thus I conclude either my code is bugged or ConstraintLayout alpha has a bug. The LazyColumn should save scroll position out of the box when navigating to next screen. Ask Question Asked 3 years, Isn't it problematic to look at the data to decide to use a parametric vs. 7. I am developing an android chatting app using jetpack compose. The button should always be visible. For me that implies bumping my kotlin version to 1. Readme Activity. A LazyColumn also provides scrolling by default, without additional code. 1; Pixel 6 API 30 Emulator; On Today’s Menu. val coroutineScope = rememberCoroutineScope In this video we will see how to test vertical lists created using LazyColumn composable. By adopting a "just-in-time" rendering approach Jul 5, 2023 · On the other hand, LazyColumn is inherently scrollable. Compose. Apr 23, 2023 · 9. calculateBottomPadding() May 4, 2021 · I have a file list, need query data from each file, then render Result list to LazyColumn. saveable. Sep 15, 2022 · 10. Oct 18, 2021 · You can add the following systemBarsPadding to the modifier of LazyColumn. Or, use performScrollToNode to scroll to a node with a text: Jul 5, 2023 · In this blog post, we’ve covered the basics of using LazyColumn in Jetpack Compose, including how to create a simple list, how to handle click events, and how to display a list of custom objects. To display a scrollable column we use LazyColumn. toList() } @Composable fun ListView(repo: Repo){ val res = repo. Something like: val listState = rememberLazyListState() // Remember a CoroutineScope to be able to launch. . LazyColumn and LazyRow). 0-beta07 release and can confirm it's way smoother than 1. I'm new to jetpack compose and learning it from code of JetpackCompose Basics so I have found in the create a performant lazy list. In that case, when you call todos. items import androidx. Nov 4, 2022 · Not sure if I understand this correctly, but if you want to stay on the first item, you can utilize a LaunchedEffect and use the list's size as its key to execute scrolling operations to the LazyColumn every filtering. fillMaxSize() . 0-beta07 relevant change log: LazyColumn/Row will now keep up to 2 previously visible items active (not disposed) even when they are scrolled out Nov 23, 2021 · The main difference with compose is the UI elements being defined and drawn on the screen with Kotlin code rather than an XML layout. Rohit Jakhar. I would suggest the following: Use a SnapshotStateList ( mutableStateListOf ) May 4, 2022 · I have a LazyColumn holding some Items. @Composable. If you want to modify todos in your TodoItem, you may write it like this: @Composable. Crafting a Dynamic List with LazyColumn() and Switch(). I need help with a full recomposition in every row of my lazy column when they are in or out of the screen. That means when the reversed lazyColumn is at Index 0 and you scroll further it collapses on your scroll, meanwhile the other lazyColumns takes up the free space (expands). Like below. Note that the list query is sorted alphabetically, the new row will not appear at the end of the list. ) {. The library is meant to synchronize LazyListState-based composables (like LazyColumn or LazyRow) with some index-based composables (like ScrollableTabRow). Aug 12, 2022 · Compose version: androidx. With this solution isScrolledToTheEnd() is true when the bottom of the last item has been viewed, whereas the other answer only needs a part of the last item to be visible. Jun 27, 2023 · Now, we are at the final step of our pagination, where we will display our paging items in a LazyColumn. items = messages, key = { message ->. To prevent redundant recompositions, in such cases derivedStateOf should be used: it'll trigger recomposition only when the produced result, based on other state variables, is changed: val state = rememberLazyListState() Mar 17, 2021 · How can i show the lazycolumn from below? by default it shows me the list from above LazyColumn(){ itemsIndexed(items = chat){ index, chat ->; Column(modifier = Modifier. id. 2. non-parametric test? Nov 29, 2020 · 117. Sep 12, 2021 · 0. modifier = Modifier. . This is important when the last item is large enough that it can't all fit in the view. class MarginItemDecoration(private val spaceHeight: Int) : RecyclerView. For example, to display a button such as this: Could be Compose 1. About. Are there any possiblities to enable a click and move gesture on LazyRow and LazyColum. Stars. g. the scrollToItem() function, which ‘immediately’ snaps the scroll position, animateScrollToItem() which scrolls using an animation. LazyColumn only renders visible items on the screen, resulting in substantial performance gains for an extensive list. This is extremely important to improve general performance, mostly for lambda expressions which are heavily used in compose. 0 which my team is not ready for. Initialize your Lazy list like this. Powered by. Jun 1, 2022 · There is a new library named LazyColumns that provides variations of a LazyColumn. portfolioItems. systemBarsPadding(). May 23, 2022 · Now, the better way of creating this LazyColumn is with "items" (instead of "item") parameter with these Composible functions list. Actual behaviour: All is good, but whenever I manually scroll fast through the list, it is also automatically put on the bottom. Use derivedStateOf to limit recompositions. visibleItemsInfo. 2. verticalScroll()). If despite everything that I have listed above you still encounter performance problems, then I would recommend that you install a latest preview version of Android Studio Hedgehog . Basically check if the list becomes empty when changing screens, e. According to thinking in compose, to get best performance your view should be side effects free. observeAsState(listOf()) Compose-Card-Test. Baseline Profiles: These profiles precompile essential code, leading to faster app launches and smoother interactions. Composable import androidx. The decision between using Column or LazyColumn hinges on the specific requirements of your Android application. As the picture shows, I have a basic Scaffold layout with a LazyColumn for content. LazyColumn in Jetpack Compose is analogous to RecyclerView in traditional Android development. We use Modifier. lazyListState. Sep 14, 2023 · Implementing Lazy Column in Jetpack Compose: To utilize Lazy Column effectively in your Jetpack Compose projects, follow these steps: Step 1: Import the necessary Compose libraries and dependencies: Step 2: Define your data set and create a Composable function to represent each item: Step 3: Implement the Lazy Column and its content: May 21, 2021 · import androidx. dp) to add space between the items. 自从Jetpack Compose作为Google推出的现代化UI工具包以来,它在Android开发领域掀起了不小的浪潮。. Use the items() function to pass items. layoutInfo. 0-beta06. query("xxx"). Jun 21, 2024 · Use lazy layout keys. size, key = {. Aug 12, 2022 · val totalLengthInPx = totalItems * itemLengthInPx. LazyColumn Oct 13, 2022 · 2. modifier: Modifier = Modifier, mainContent: @Composable () -> Unit, dependentContent: @Composable (IntSize, Constraints) -> Unit. May 31, 2023 · Here is a very big difference between debug and release modes when we're using compose, read more here. You probably want the list of your ExpandableCards to be scrollable too. You however can only have one vertically scrolling layout in each screen, if you don't apply a fixed height to the inner scrolling layout. These mistakes might give you code that seems to run well enough, but can hurt your UI performance. 0-alpha11 doesn't support scrolling in tests in Lazy components (i. How to test a LazyColumn items . Phil Dukhov. Jul 6, 2023 · Here’s a simple example of how to add dividers to a LazyColumn: import androidx. It seems that lazy row is useless for Compose for desktop. With these skills, you’re well on your way to efficiently displaying lists in your Jetpack Compose app. items = rows, Mar 13, 2024 · 深入探索Jetpack Compose LazyColumn性能表现及优化策略. All models and composables are stable. – Phil Dukhov Commented Apr 9, 2022 at 17:05 A LazyColumn can add content on demand, which makes it good for long lists and particularly when the length of the list is unknown. Sep 28, 2021 · Here, if you provide the key lambda, the compose will know that this entry is the same entry - just with different content. Marcin Środa. gradle of your app module add the Jun 21, 2023 · 1. Jan 31, 2021 · I try to write some test code to check if i can delete a item in a column fun main() { val list = mutableStateListOf("a", "b", "c") Window { LazyColumn { itemsIndexed Sep 14, 2021 · I am trying to create an app with JetPack Compose (first time) and I am having some problem with the navigation. If the user is seeing the latest message when new messages come, the LazyColumn should be scroll to the latest message. rf fi cx vx tz ys ax wa fc ip