קל לארגן דפים בעזרת אוספים
אפשר לשמור ולסווג תוכן על סמך ההעדפות שלך.
כדאי ליצור סרגל אפליקציה ותחתון כדי לעזור למשתמשים לנווט ולגשת לפונקציות באפליקציה. תוכלו לפעול לפי ההוראות הבאות כדי להוסיף סרגל אפליקציה ותחתון לאפליקציה באמצעות הרכיב ה-composable BottomAppBar.
תאימות גרסאות
כדי להטמיע את הקוד הזה, צריך להגדיר את minSDK של הפרויקט לרמת API 21 ואילך.
יחסי תלות
יצירת סרגל אפליקציה תחתון
הקוד הבא יוצר סרגל אפליקציה תחתון שמכיל ארבעה לחצני סמלים ולחצן פעולה צף:
@ComposablefunBottomAppBarExample(){Scaffold(bottomBar={BottomAppBar(actions={IconButton(onClick={/* do something */}){Icon(Icons.Filled.Check,contentDescription="Localized description")}IconButton(onClick={/* do something */}){Icon(Icons.Filled.Edit,contentDescription="Localized description",)}IconButton(onClick={/* do something */}){Icon(Icons.Filled.Mic,contentDescription="Localized description",)}IconButton(onClick={/* do something */}){Icon(Icons.Filled.Image,contentDescription="Localized description",)}},floatingActionButton={FloatingActionButton(onClick={/* do something */},containerColor=BottomAppBarDefaults.bottomAppBarFabColor,elevation=FloatingActionButtonDefaults.bottomAppBarFabElevation()){Icon(Icons.Filled.Add,"Localized description")}})},){innerPadding->
Text(modifier=Modifier.padding(innerPadding),text="Example of a scaffold with a bottom app bar.")}}
דוגמאות התוכן והקוד שבדף הזה כפופות לרישיונות המפורטים בקטע רישיון לתוכן. Java ו-OpenJDK הם סימנים מסחריים או סימנים מסחריים רשומים של חברת Oracle ו/או של השותפים העצמאיים שלה.
עדכון אחרון: 2025-06-04 (שעון UTC).
[null,null,["עדכון אחרון: 2025-06-04 (שעון UTC)."],[],[],null,["\u003cbr /\u003e\n\nCreate a bottom app bar to help users navigate and access functions in your app.\nFollow this guidance to add a bottom app bar to your app by using the\n[`BottomAppBar`](/reference/com/google/android/material/bottomappbar/BottomAppBar) composable.\n\nVersion compatibility\n\nThis implementation requires that your project minSDK be set to API level 21 or\nhigher.\n\nDependencies\n\nCreate a bottom app bar\n\nUse the following code to create a bottom app bar containing four icon buttons,\nand a floating action button:\n\n\n```kotlin\n@Composable\nfun BottomAppBarExample() {\n Scaffold(\n bottomBar = {\n BottomAppBar(\n actions = {\n IconButton(onClick = { /* do something */ }) {\n Icon(Icons.Filled.Check, contentDescription = \"Localized description\")\n }\n IconButton(onClick = { /* do something */ }) {\n Icon(\n Icons.Filled.Edit,\n contentDescription = \"Localized description\",\n )\n }\n IconButton(onClick = { /* do something */ }) {\n Icon(\n Icons.Filled.Mic,\n contentDescription = \"Localized description\",\n )\n }\n IconButton(onClick = { /* do something */ }) {\n Icon(\n Icons.Filled.Image,\n contentDescription = \"Localized description\",\n )\n }\n },\n floatingActionButton = {\n FloatingActionButton(\n onClick = { /* do something */ },\n containerColor = BottomAppBarDefaults.bottomAppBarFabColor,\n elevation = FloatingActionButtonDefaults.bottomAppBarFabElevation()\n ) {\n Icon(Icons.Filled.Add, \"Localized description\")\n }\n }\n )\n },\n ) { innerPadding -\u003e\n Text(\n modifier = Modifier.padding(innerPadding),\n text = \"Example of a scaffold with a bottom app bar.\"\n )\n }\n}https://github.com/android/snippets/blob/7a0ebbee11495f628cf9d574f6b6069c2867232a/compose/snippets/src/main/java/com/example/compose/snippets/components/AppBar.kt#L138-L183\n```\n\n\u003cbr /\u003e\n\nKey points about the code\n\n- An outer [`Scaffold`](/reference/kotlin/androidx/compose/material/package-summary#Scaffold(androidx.compose.foundation.layout.WindowInsets,androidx.compose.ui.Modifier,androidx.compose.material.ScaffoldState,kotlin.Function0,kotlin.Function0,kotlin.Function1,kotlin.Function0,androidx.compose.material.FabPosition,kotlin.Boolean,kotlin.Function1,kotlin.Boolean,androidx.compose.ui.graphics.Shape,androidx.compose.ui.unit.Dp,androidx.compose.ui.graphics.Color,androidx.compose.ui.graphics.Color,androidx.compose.ui.graphics.Color,androidx.compose.ui.graphics.Color,androidx.compose.ui.graphics.Color,kotlin.Function1)) that has a `bottomBar` set.\n- A `bottomBar` implementation that contains a list of actions.\n- Actions that are implementations of [`IconButton`](/reference/kotlin/androidx/compose/material/package-summary#IconButton(kotlin.Function0,androidx.compose.ui.Modifier,kotlin.Boolean,androidx.compose.foundation.interaction.MutableInteractionSource,kotlin.Function0)) that contain [`Icon`](/reference/kotlin/androidx/compose/material3/package-summary#Icon(androidx.compose.ui.graphics.ImageBitmap,kotlin.String,androidx.compose.ui.Modifier,androidx.compose.ui.graphics.Color)) for image and content description text, each with an `onClick` lambda to perform these actions.\n\nYou can pass composables for the following key parameters:\n\n- `actions`: a series of icons that appear on the left side of the bar. These are commonly either key actions for the given screen, or navigation items.\n- [`floatingActionButton`](/reference/com/google/android/material/floatingactionbutton/FloatingActionButton): the floating action button that appears on the right side of the bar.\n\n| **Note:** After you add the bottom app bar, you can customize it with content as you do with other containers by filling the `BottomAppBar` composable with other content. You can also use `BottomAppBar` without passing a value for `actions` or `floatingActionButton`.\n\nResults **Figure 1.** An example of a bottom app bar.\n\nCollections that contain this guide\n\nThis guide is part of these curated Quick Guide collections that cover\nbroader Android development goals: \n\nCreate a home screen scaffold \nFind out how to use a standardized platform to build complex user interfaces. The scaffold holds together different parts of the UI, giving apps a coherent look and feel. \n[Quick guide collection](/develop/ui/compose/quick-guides/collections/create-a-home-screen-scaffold) \n\nDisplay interactive components \nLearn how composable functions can enable you to easily create beautiful UI components based on the Material Design design system. \n[Quick guide collection](/develop/ui/compose/quick-guides/collections/display-interactive-components) \n\nHave questions or feedback \nGo to our frequently asked questions page and learn about quick guides or reach out and let us know your thoughts. \n[Go to FAQ](/quick-guides/faq) [Leave feedback](https://issuetracker.google.com/issues/new?component=1573691&template=1993320)"]]