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Bu kılavuzda, üst uygulama çubuğundaki gezinme simgesinin nasıl gezinme işlemleri gerçekleştirebileceği gösterilmektedir.
Örnek
Aşağıdaki snippet, işlevsel bir gezinme simgesi içeren üst uygulama çubuğunu nasıl uygulayabileceğinize dair en basit örnektir. Bu durumda simge, kullanıcıyı uygulamadaki önceki hedefine yönlendirir:
@ComposablefunTopBarNavigationExample(navigateBack:()->Unit,){Scaffold(topBar={CenterAlignedTopAppBar(title={Text("Navigation example",)},navigationIcon={IconButton(onClick=navigateBack){Icon(imageVector=Icons.AutoMirrored.Filled.ArrowBack,contentDescription="Localized description")}},)},){innerPadding->
Text("Click the back button to pop from the back stack.",modifier=Modifier.padding(innerPadding),)}}
NavHost(navController,startDestination="home"){composable("topBarNavigationExample"){TopBarNavigationExample{navController.popBackStack()}}// Other destinations...
Ek kaynaklar
Uygulamanızda gezinmeyi nasıl uygulayacağınız hakkında daha fazla bilgi için aşağıdaki kılavuz serisine bakın:
Bu sayfadaki içerik ve kod örnekleri, İçerik Lisansı sayfasında açıklanan lisanslara tabidir. Java ve OpenJDK, Oracle ve/veya satış ortaklarının tescilli ticari markasıdır.
Son güncelleme tarihi: 2025-08-30 UTC.
[[["Anlaması kolay","easyToUnderstand","thumb-up"],["Sorunumu çözdü","solvedMyProblem","thumb-up"],["Diğer","otherUp","thumb-up"]],[["İhtiyacım olan bilgiler yok","missingTheInformationINeed","thumb-down"],["Çok karmaşık / çok fazla adım var","tooComplicatedTooManySteps","thumb-down"],["Güncel değil","outOfDate","thumb-down"],["Çeviri sorunu","translationIssue","thumb-down"],["Örnek veya kod sorunu","samplesCodeIssue","thumb-down"],["Diğer","otherDown","thumb-down"]],["Son güncelleme tarihi: 2025-08-30 UTC."],[],[],null,["This guide demonstrates how you can make the navigation icon in a [top app\nbar](https://m3.material.io/components/top-app-bar/overview) perform navigation actions.\n| **Note:** The example on this page uses `CenterAlignedTopAppBar`, but this is applicable to any app bar component with a `NavigationIcon` parameter.\n\nExample\n\nThe following snippet is a minimal example of how you can implement a top app\nbar with a functional navigation icon. In this case, the icon takes the user to\ntheir previous destination in the app:\n\n\n```kotlin\n@Composable\nfun TopBarNavigationExample(\n navigateBack: () -\u003e Unit,\n) {\n Scaffold(\n topBar = {\n CenterAlignedTopAppBar(\n title = {\n Text(\n \"Navigation example\",\n )\n },\n navigationIcon = {\n IconButton(onClick = navigateBack) {\n Icon(\n imageVector = Icons.AutoMirrored.Filled.ArrowBack,\n contentDescription = \"Localized description\"\n )\n }\n },\n )\n },\n ) { innerPadding -\u003e\n Text(\n \"Click the back button to pop from the back stack.\",\n modifier = Modifier.padding(innerPadding),\n )\n }\n}https://github.com/android/snippets/blob/f95ab59fad80aeaf5d6a90bab8a01a126f20f44e/compose/snippets/src/main/java/com/example/compose/snippets/components/AppBar.kt#L353-L381\n```\n\n\u003cbr /\u003e\n\nKey points about the code\n\nNote the following in this example:\n\n- The composable `TopBarNavigationExample` defines a parameter `navigateBack` of type `() -\u003e Unit`.\n- It passes `navigateBack` for the `navigationIcon` parameter of `CenterAlignedTopAppBar`.\n\nAs such, whenever the user clicks the navigation icon in the top app back, it\ncalls `navigateBack()`.\n\nPass a function\n\nThis example uses a back arrow for the icon. As such, the argument for\n`navigateBack()` should take the user to the previous destination.\n\nTo do so, pass `TopBarNavigationExample` a call to\n[`NavController.popBackStack()`](/guide/navigation/backstack). You do this where you [build your\nnavigation](/guide/navigation/design#compose) graph. For example: \n\n NavHost(navController, startDestination = \"home\") {\n composable(\"topBarNavigationExample\") {\n TopBarNavigationExample{ navController.popBackStack() }\n }\n // Other destinations...\n\n| **Note:** Using the same approach, you could implement a different action for the navigation icon. For example, you could use a house icon and pass a call to `navController.navigate(\"home\")`.\n\nAdditional resources\n\nFor more information on how to implement navigation in your app, see the\nfollowing series of guides:\n\n- [Navigation with Compose](/develop/ui/compose/navigation)\n- [Create a NavController](/develop/ui/compose/navigation#navcontroller)\n- [Design your navigation graph](/guide/navigation/design#compose)\n- [Navigate to a composable](/develop/ui/compose/navigation#nav-to-composable)"]]