URL of codelab In which task and step of the codelab can this issue be found? Task: Set an action button Step 4: Describe the problem Following step 4 for TextField() in the fun EditNumberField() i. How can we get around this? Go back to the old way of duplicating each preview and changing the colors and content configuration manually? Not use Material theme values or flexible slot based layouts? Fear not, there is a way! First, a recap on. 9. I'm trying to fetch an api data by Volley connection and assign into Text Composable, but it didn't work and showing error: @Composable invocations can only happen from the context of a @Composable function. You can read from the LocalInspectionMode CompositionLocal to see if the. @Composable invocations can only happen from the context of a @Composable function. Wait for result from Coroutine and then use it in Composable function. TopAppBar @composable invocations can only happen from the context of an @composable. 1 @Composable invocations can only happen from the context of a @Composable function-Jetpack. –@Composable invocations can only happen from the context of a @Composable function in android. Therefore, if a given composable is removed from the recomposition, that coroutine will be cancelled automatically. Composable functions that return Unit are considered declarative entities that can be either present or absent in a composition and therefore follow the naming rules for classes. . Add a comment. Create a file Ticket. Here the ShowAboutDialog () function is a compose function and if you need to call that, you need to call it from another composable function with @Composable annotation added like another composable screen or function. Hot Network Questions On the limits of a law clerk to the judge to "co-judge" a case and how the communications should be recordedAccording to Compose modifier guidelines:. Compose-Navigation: Remove previous composable from stack before navigating; Jetpack Compose: Launch ActivityResultContract request from Composable function; How do I use Color resource directly in Jetpack Compose? remove default padding on jetpack compose textfield; @composable invocations can only happen from the context of an. composed {} to implement composition-aware modifiers, and SHOULD NOT declare modifier extension factory functions as @Composable functions themselves. runtime. repeatOnLifecycle if you need it to re-launch a block of code when the host lifecycle is in a certain State. Why. Surface composable makes the code easier as well as explicitly indicates that the code uses a material surface. A side-effect is a change to the state of the app that happens outside the scope of a composable function. Similarly buttonA will do the same but grab the attribute of onClick from buttonB and set it as the call back function for the timeout. Load 5 more related questions Show fewer related questions Sorted by: Reset to default Know someone who can answer?. error: @Composable invocations can only happen from the context of a @Composable function. 1. we have to either provide the android dependencies by running the app in device or use. It is clear that this function calls a dialog. Improve this question. Encourage reusability. @Composable annotation is like a scope that gives access to Compose functions such as LaunchedEffect, SideEffect, remember or objects such as currentComposer and resembles suspend functions. You can find code samples in our GitHub repository. 1. It gives the error, @Composable invocations can only happen from the context of a @Composable function because the generated code is not composable public Builder dataProvider(DataProvider dataProvider) { this. @composable invocations can only happen from the context of an @composable function . 0-alpha01-dev707 supporting kotlin 1. You can only change. But items() body is a composable function therefore you can call composable function within items. Deferring invocation could potentially have energy-efficiency benefits, but only if the rate of non-lazy callbacks decreases significantly for some important workload. Either you remove the @Composable annotation in the WebPageScreen though I'm not sure if something will break (never tried webviews in compose yet). Learn more about Teams Add @Composable to parameters in your functions where you pass another composable function. 10. @ExperimentalFoundationApi @OptIn (ExperimentalAnimationApi::class) @ExperimentalUnitApi @Composable private fun updatedata (viewModel: YourViewModel, authdata: Payload) { val responseState by viewModel. onClick is not marked @Composable, so you get this warning. compose foreach loop:@Composable invocations can only happen from the context of a @Composable function 4 Jetpack Compose AlertDialog Error: "@Composable invocations can only happen from the context of a @Composable function" @composable fun main() = Window(title = text) {I run into 2 errors : @composable invocations can only happen from the context of a @composable function @composable main functions are not currently supported. This question already has answers here : @composable invocations can only happen from the context of an @composable function (4个答案) Closed 上个月. The reason for reserving the bottom bit of pointers to rcu_head structures is to leave the door open to “lazy” callbacks whose invocations can safely be deferred. I need to recompose my @Composable method from outside. 0. As a result, Jetpack Compose framework development and Library development SHOULD use Modifier. Layout関数は 一つだけ@Composable関数のパラメーターを取る場合、"content"という名前を@Composable関数のパラメーターとして使わなくてはならない。(SHOULD)By clicking “Accept all cookies”, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Rebecca D. They should also be called synchronously in these contexts. Use something like:Functions marked with the infix keyword can also be called using the infix notation (omitting the dot and the parentheses for the call). example. 1. Composable invocations can only happen from the context of a @Composable function. Window() is a top function call. As a result, things like TextField don’t automatically update like they do in imperative XML based views. Jun 1, 2021 at 9:58. @composable invocations can only happen from the context of an @composable function for Composable with LaunchedEffect and AndroidViewBinding. The makeText () method returns a properly initialized Toast object. @composable invocations can only happen from the context of an @composable function The problem: Hi Im currently struggling with navigation in Jetpack Compose due to @composable invocations can only happen from the context of an @composable function. runtime. . 1 Answer. Kotlin unresolved reference in IntelliJ. You can only add a @Composable view to another @Composable view. – Jeel Vankhede. Composable invocations can only happen from the context of a @Composable function Hot Network Questions What is the difference between the victim of divorce in 1 Corinthians 7:15, and Luke 16:18, if remarriage is permitted by Paul? Composable invocations can only happen from the context of a @Composable function. napperley. Invocations can only happen from the context of an @composable function using Compose Navigation 0 Why Navigator in Compose giving Illegal Argument error?You can use a OutlinedTextField + DropdownMenu. Accessing composable function from within non-composable function. 6 Warning “Kotlin plugin version is not the same as library version” (but it is!)As a very fundamentals that we Android developer has learned, and it shows the way for communicating between two components. Calling a composable function from within a non-composable function doesn't make sense. . current is composable, you can’t invoke it within the non-composable function. 2. @Composable invocations can only happen from the context of a @Composable function-Jetpack. 1 error: @Composable invocations can only happen from the context of a @Composable function. 6. the docs are stating If a composable function contains calls to other composable functions, those functions might run in any order. Remove the @Composable annotation in the showMessage. None of the following functions can be called with the arguments supplied | @Composable invocations can only happen from the context of a @Composable Hot Network Questions Is there a recourse when a player does not resign in. Q&A for work. 1. If you're calling it from a ViewModel, you can make it an AndroidViewModel and use the ApplicationContext instead. 1 Jetpack Compose - Application crashes when clicking on the LazyColumn's item. 2. 【问题标题】：@Composable invocations can only happen from the context of a @composable function@Composable 调用只能在 @composable 函数的上下文中发生 【发布时间】：2021-04-02 16:27:16 【问题描述】：Since safe-args-gradle-plugin:1. Composable invocations can only happen from the context of a @Composable function. New posts Search forums. Talk to a Lightrun Answers expert AGP 7. @Composable 调用只能从上下文中发生，当我想在另一个可组合函数中调用 cal 可组合函数时 - @Composable invocations can only happen from the context when I want cal composable function in the another composable function 2021-10. Forums. Stack Overflow | The World’s Largest Online Community for Developers1. ComposableModifierFactory: Modifier factory functions should not be marked as @Composable, and should use composed instead When I make that change I then get a new lint error: fun Modifier. Ho. This is precisely what navigation graph scoped view models are used for. 关于如何提供 Compose Material 颜色的枚举列表之一作为参数的任何想法？ 以干净且可扩展的方式很好地扩展？Back to the courses page. If you have a side effect function, it shouldn't be called directly from composable. @Composable invocations can only happen from the context of a @Composable functionn. Composable functions that return Unit are considered declarative entities that can be either present or absent in a composition and therefore follow the naming rules for classes. 3. 7. 4. 0のようなシリアル値に変換されてしまい、DS上では期待した値が得られず、日付や曜日が返る. A. 6. i ("HomeScreen", "home screen visible") // call your methods here } // the rest of. @Composable fun Toolbar () { val context = LocalContext. 7 How to compile compose 1. current is composable, you can’t invoke it within the onClick function. 2 Answers. You can do it as. Teams. Eric Womer. Teams. On the other hand function references of @Composable functions are not currently supported. js News. Due to composables' lifecycle and properties such as unpredictable recompositions, executing recompositions of composables in different orders, or recompositions that can be discarded, composables should ideally be side-effect free. In this case, I would suggest removing the outer function so that your code looks like this: document. @Composable fun Toolbar () { val. 单击工具栏操作时，我试图显示 toast 消息，但出现此错误. Remember to use a valid email address. fetchSemanticsNodes (). icon = BitmapPainter(useResource("icon. You can do it as. @composable invocations can only happen from the context of an @composable function; How do I create a Jetpack Compose Column where a middle child is scrollable but all of the other children are always visible? Exposed drop-down menu for jetpack compose; Ripple with rounded corners Jetpack Compose;The Composable function is annotated with the @Composable annotation; this annotation informs the Compose compiler that this function is intended to convert data into UI. Android creates a Drawable resource for any of . Hello, For my application project, I will need dialog boxes. Using a virtual device: Using. 1 Answer. Talking about @Composable inevitably brings us to the second area, as the annotation is located in package androidx. Composable functions can accept parameters, which allow the app logic to describe the UI. 0-rc01; How to use Compose inside Fragment? What is the SortedList working with RecyclerView. This is to allow automatic recompositions and also to implicitly pass the context between components. @Composable invocations can only happen from the context of a @Composable function. It means that this method can load either an instance of BitmapPainter or VectorPainter for. 9. Stack Overflow | The World’s Largest Online Community for DevelopersIf you're using the navigation library, you can add the ViewModelStoreOwner parameter in this function and use it in viewModel () function call. so I guess the parent will always be called first, only the childs can execute in any order. tampa. Composable invocations can only happen from the context of a @Composable function. Composable invocations can only happen from the context of a @Composable function. current TopAppBar (title = {}, actions = { IconButton (onClick = { showMessage (context, message = "test") }) {} }) } fun showMessage (context: Context, message. val context = LocalContext. Composable invocations can only happen from the context of a Composable function10. 1 @Composable invocations can only happen from the context of a @Composable function-Jetpack. How can we get around this? Go back to the old way of duplicating each preview and changing the colors and content configuration manually? Not use Material theme values or flexible slot based layouts? Fear not, there is a way! First, a recap on PreviewParameter 5 Answers. A composable's presence or absence resulting from the evaluation of its caller's control flow establishes both persistent identity across recompositions and a. how can i solve this error? because I'm New. This video is about fixing the error @composable invocations can only happen or composable invocations can only happen from the context of a @composable func. 5. Referencing or enumerating Jetpack Compose MaterialTheme theme colors outside Composable function, Update State outside the composable function. Here the ShowAboutDialog () function is a compose function and if you need to call that, you need to call it from another composable function with @Composable annotation added like another composable screen or function. 首先要注意Composable function must只能be called inside another Composable function 。 Now back to your question, onClick parameter which accept the function is not a composable function. This is reminiscent of coroutines, where suspend functions need to be called by other suspend functions or one of a small family of end consumers of. Can we use composable functions from other classes inside another class? 0. Ho. 5. I then realized that the Lazycolumn is constantly rendering the items and never stopping doing so. Because of this, composables can only be used inside functions marked with the @Composable annotation. e. @Composable invocations can only happen from the context of a @composable function There is a similar question Another similar question. This isn't related to Kotlin. @composable invocations can only happen from the context of an @composable function. In a Composable world, you don't tell the view what to do after a state changes. current, rememberNavController()) }, ) Describe the solution you'd like I'd like some method of providing parameters that can only be invoked from a @Composable function. On the other hand function references of @Composable functions are not currently supported. I was playing around with the LazyColumn composable to implement a collapsing toolbar behavior with a sticky header. Jetpack Compose pass parameter to viewModel. Basically, I have two composable funcs which create a TopAppBar and add a tab layout contained in the app bar : @Composable fun ZCryptAppBar ( modifier: Modifier = Modifier, title: @Composable. Stack Overflow. The best thing to do is to follow the suggestion in the warning, or exclude the dependency entirely (your point #2, which I’ve answered below). You can only invoke a composable function from another composable function context. Key Point: The lifecycle of a composable is defined by the following events: entering the Composition, getting recomposed 0 or more times, and leaving the Composition. the code looks like this. 만약 사용하려고 하면 다음과 같은 오류가 뜬다. Invocations can only happen from the context of an @composable function using Compose Navigation. Since viewmodel has its own lifecycle, it's possible for the context (that it is holding) to go stale (no longer in memory), therefore you should avoid holding. You can only change the state with onClick. Follow edited Dec 15, 2022 at 12:15. You shouldn't access a Context otherwise. () -> Unit / content: @Composable RowScope. foundation. stringResource is a composable function which could not be invoked from non compose scope. Due to composables' lifecycle and properties such as unpredictable recompositions, executing recompositions of composables in different orders, or recompositions that can be discarded, composables should ideally be side-effect free. Kotlin @Composable invocations can only happen from the context of a @Composable function. If you want to pass null parameter to the method you should add ? to it’s type, for example:. @Composable invocations can only happen from the context of a @Composable functionn. Thread starter SNM;Composable functions often utilize Kotlin’s trailing lambda syntax, so Body() is a composable function that has a composable lambda as a parameter. CompositionLocal elements are usually provided with a value in a certain node of. 1. 1234567 Asks: @composable invocations can only happen from the context of an @composable function for Composable with LaunchedEffect and AndroidViewBinding I have a composable function @Composable fun SomeComposeView(){ AndroidViewBinding(SomefragactBinding::inflate) { val. It can get messing when you nest functions inside of each other. We present Composable Diffusion (CoDi), a novel generative model capable of generating any combination of output modalities, such as language, image, video, or audio, from any combination of input modalities. Something along the lines of this:. Accessing composable function from within non-composable function. Created ImageCard view for creating the list in android jetpack compose but some images can't scratch to Box widget's width and height. ResponseStatus. 5. [Solved] @composable invocations can only happen from the context of an @composable function. complaining "@Composable invocations can only happen from the context of a @Composable function"? n. Can we use composable functions from other classes inside another class? 2. It is important to wrap the them in a Box. @Composable invocations can only happen from the context of a @Composable function. What kind of amendment can oblige multiple political parties, and repair the unintended two-party malfunction of the constitution? Notepad++ writes a lot to disk after closing Using `any` to indicate a wildcard valueI know its not possible to call composable functions inside onClick. 1. Now, use the property in your top-bar. complaining "@Composable invocations can only happen from the context of a @Composable function"? n. Problem calling a Composable function in an Observable. Use something like: @Composable fun Toolbar () { val context = LocalContext. For your specific example of ambientOf, the ambient value doesn't exist outside of composition—you can think of an ambient as being supplied to everything "below" it in. In this Jetpack compose tutorial we will learn How to create Toast in an Android application using Jetpack Compose. None of the following functions can be called with the arguments supplied | @Composable invocations can only happen from the context of a @Composable Hot Network Questions Approximately how many civilian deaths were caused by Bashar al-Assad's regime in the Syrian civil war?@Composable invocations can only happen from the context of a @Composable function-Jetpack. Use a Composable inside of a Modifier. 从实用程序@Composable 函数返回颜色也不是一种选择，因为@Composable 函数没有返回值。 所以. Since the LocalContext. How to pass a Composable to another Composable as its parameter and display/run it in Jetpack Compose. How can I make the title of a Window a mutable state ?TopAppBar @composable invocations can only happen from the context of an @composable function. 1: multiplatform-template @Composable invocations can only happen from the context of a @Composable functionHow to call Kotlin coroutine in composable function callbacks? Compose-Navigation: Remove previous composable from stack before navigating; remove default padding on jetpack compose textfield; @composable invocations can only happen from the context of an @composable function; Exposed drop-down menu for jetpack compose大家好，写给初学者的Jetpack Compose教程又更新了。准确来说，这才是本系列的第一篇文章。因为上篇文章只是个序篇，和大家聊一聊为什么我们要学习Compose。Compose的知识体系很庞大，因此这个系列教程可能我会写很多篇。当然我并不是什么Compose高手，目前我也是个初学者。The onClick parameter doesn’t accept a composable function. For part 1), you have two options. onclick = function () { standard (); }; document. You can use the waitUntil function, as suggested in the comments: composeTestRule. In the below code snippet we are retrieving the context and show a toast message inside the composable. Add the following code: If you face any problem with imports, look at the gradle files used in the project. 12/11/2022, 9:40 PM. 1. verticalScroll(rememberScrollState()). current. 21 to add js and native target. It commences when a composable starts and when the key of the composable updates. @Composable invocations can only happen from the context of a @Composable function refer to onClick(), instead i get this error every time i try to. runtime. 5. 0. Composable invocations can only happen from the context of a @Composable function. " 54 Error: "@Composable invocations can only happen from the context of a @Composable function". 7. Jetpack Compose - pass an object through composable callback. "I know side effect stuff" - yet you are trying to use a Composable function inside a LaunchedEffect, so that suggests you don't RE: the opening sentence on side-effects in the documentation linked. png, . Adapter? Use Tab with new ToolBar (AppCompat v7-21) Screen width and height in Jetpack Compose; Jetpack Compose on Kotlin 1. Basically, I have two composable funcs which create a TopAppBar and add a tab layout contained in the app bar : @Composable fun ZCryptAppBar ( modifier: Modifier = Modifier, title: @Composable. Window() is a top function call. Improve this question. error: @Composable invocations can only happen from the context of a @Composable function. Teams. 7. android kotlinThe painterResource function itself is implemented using internal functions, so there doesn't seem to be anything lower level I can use that isn't composable? As a workaround, avoiding using singleWindowApplication works fine:In Android Compose, you can get the context by using the LocalContext, but it should be call'd from the composable function / scope. When the button is clicked, I want to call a function that stores the AlertDialog. I can not do it. How to call inner function inside composable? 0. 1. 그림2. Horizontal = Arrangement. Is there any workaround? I stuck on this heavily. In both cases you need something more than JUnit to test your composable. compose. Using bottom app bar as nested navigation in jetpack compse. Start, verticalAlignment:. @composable fun main() = Window(title = text) {I run into 2 errors : @composable invocations can only happen from the context of a @composable function @composable main functions are not currently supported. MyViewModel – We manage the state here. Exposing a read-only variable while using the mutable variable internally is a good practice. Hot Network Questionsachinth commented on May 10, 2022. A composable's presence or absence resulting from the evaluation of its caller's control flow establishes both persistent identity across. @Composable fun Toolbar() { val context = LocalContext. 30 and latest JB compose, and kotlin plugin, I still get red everywhere in my single composable defined in. How can I get a specific field into Firestore in. compose. So, you can move the p1/p2 functions outside of your drawLines function. 6 LazyHorizontalGrid inside LazyColumn. Another thing by using this State Hoisting approach, we can. 2. @Composable invocations can only happen from the context of a @Composable function in android. I have to move every view that is out of the LayzyColumn, inside it. @composable invocations can only happen from the context of an @composable function for Composable with LaunchedEffect and AndroidViewBinding I have a composable function @Composable fun SomeComposeView(){ AndroidViewBinding(SomefragactBinding::inflate) { val myFragment =. I understand that composable functions. Sorry for. * importThis is the prototype of Row: @Composable public inline fun Row( modifier: Modifier = Modifier, horizontalArrangement: Arrangement. Q&A for work. main() function cannot be @Composable - Window title as a mutable state. @Composable fun Main(){ var updateState by rememberSaveable { mutableStateOf(false) }. Composable invocations can only happen from the context of a @Composable function. @Composable invocations can only happen from the context of a @Composable function-Jetpack. Why it doesn’t work with some Composables as Buttons: Note that in some Composables, like Button or IconButton, it doesn’t work since the indication is defined internally by the component which uses indication = rememberRipple(). onClick is not marked @Composable, so you get this warning. Jetpack Compose: How to pass values to composables in the tree? 0. By default all variables and parameters in Kotlin are non-null. What I need is that once the use click on an item from the column the rest of the item details are displayed in the second composable at the right side. setVisibility can only be called from the same library group; How to close the virtual keyboard from a Jetpack Compose TextField?This is the public read-only variable that can be consumed from the UI. 10. Using the same technique above we can even pass in a composable to be. Why. java)) @Composable fun AdminAuth () { Column ( modifier. Asked 5 months ago. Compose is declarative and as such the only way to update it is by calling the same composable with new arguments. . 132k 17 17 gold badges 163 163 silver badges 195 195 bronze badges. 1 error: @Composable invocations can only happen from the context of a @Composable function. // function. "@Composable invocations can only happen from the context of a @Composable function" Related questions. Compose version - alpha06. State hoisting in Compose is a pattern of moving state to a composable's caller to make a composable stateless. Apr 5, 2021 at 12:17. How to call a composable function in onClick event. 从@Composable invocations can only happen from the context of a @Composable function开始，我应该如何调用内容？如果我把内容放在启动块中，我会收到上面的错误信息。 如果我把内容放在启动块中，我会收到上面的错误信息。@Composable fun GoToMainScreen(navController: NavHostController) { LaunchedEffect(Unit) { delay(2000L) navController. @Composable invocations can only happen from the context of a @Composable function import androidx. Stack Overflow | The World’s Largest Online Community for Developers@composable invocations can only happen from the context of an @composable function; android:autoSizeTextType in Jetpack Compose; Jetpack compoes lazycolumn skipping frames (lagging) Error: “@Composable invocations can only happen from the context of a @Composable function”Summary. To sum up, we have learned to get the context in the compose. current. @composable invocations can only happen from the context of an @composable functionRecomposition and State of composable functions. If you still want to go that route, inject the application context using Hilt or whichever DI you're using. Composable 외부에서 로드하려고 할 때 오류 @Composable invocations can only happen from the context of a @Composable functionYou can use BackHandler: @Composable fun TestScreen() { BackHandler { // your action } } To get the same. compose. Since compose requires android dependencies. Item"/> Parcelable arguments are now supported, using a fully qualified class name for app:type. @Composable invocations can only happen from the context of a @Composable function in android 3 Invocations can only happen from the context of an @composable function using Compose Navigation 1 Answer. ic_xxxx),"content description") The resources with the given id must point to either fully rasterized images (ex. TopAppBar @composable invocations can only happen from the context of an @composable function. The composable functions can be called only from another composable function. . Improve this question. 1. After updating everything to latest 1. なお、Composableでない関数で context を使いたい場合は、Composableから context を渡してあげれば良さそうでした。 android - @composable invocations can only happen from the context of an @composable function - Stack Overflow その他1. Sorry for late response. items) {listItem -> //Load list data } item { //other views } } } With this code, I will have a screen that has a scrollable view. 1 Answer. error: @Composable invocations can only happen from the context of a @Composable function. Q&A for work. When I try to call SweetSuccess or the other toasts from LaunchedEffect I get the error: " @composable invocations can only happen from the context of a @composable function". Horizontal = Arrangement. As I wanted to simplify for the snippet below, I've got a function that is passed data to draw some circles. @composable invocations can only happen from the context of an @composable. then(Modifier . Scaffold ( topBar = { Text (text = vm. layout. topBarProperty) }, content = {} ) Now, you could do something like vm. how to implement mapbox correctly in xamarin forms app. Invocations can only happen from the context of an @composable function using Compose Navigation. I've struggled with this myself and I found that, unless you need something very specific (like a file browsing dialog), it's better to use Compose's Dialog. For instance, you have the following composable calls A -> B -> C. 标签 android kotlin android-jetpack android-jetpack-compose. In the early days of the web, HTTP was the only player. This also happens when they key updates in every recomposition. 12/11/2022, 9:40 PM. How to call inner function inside composable? 1. 3 Jetpack Compose actually works with Classes and not Functions? 1 compile time error: @Composable invocations can only happen from the context of a @Composable. Inside the setCharacter function, check the value of this variable. 8 into bytecode that is being built with JVM target 1. napperley. The classical Newtonian model of time, which assumes there is a global state of the system that is known instantaneously everywhere, is a good approximation for relatively. 물론 @Composable 외부에서는 stringResource를 사용할 수 없다. fillMaxWidth() . Related Contents: “cannot resolve symbol R” in Android Studio; Cannot inline bytecode built with JVM target 1. @composable invocations can only happen from the context of an @composable function. Content of the LazyColumn itself is not a composible function rather it's a LazyListScope. runtime. The View gets GC'd and thus its Context as well. 3 人关注. kt. Either read the string first and keep it in a variable, or keep Localcontext. 0-alpha03 you can use Parcelable objects by using their fully qualified class name: <argument android:name="item" app:argType="com. I'm not sure what's not working, I just tried my answer, it compiles fine and upon clicking the button the MainContent re-composes and satisfying the if block, my answer solves your problem with @Composable invocations can only happen from the context of a @Composable function, if your WebView doesn't load, its a different issue now I. Start, verticalAlignment:. You can only add a @Composable view to another @Composable view. You can either run android instrumentation test which runs on android device, or use robolectric to test your composable in JVM. Q&A for work. Composable invocations can only happen from the context of a @Composable function. Composable as method parameter. mutableStateOf import androidx. 1 Answer. Alternatively, you can get the context outside the onClick function scope and use, as shown in the first example. Improve this question. 6. current TopAppBar (title = {},. Navigation drawer below TopAppBar in Jetpack Compose.