[null,null,["最后更新时间 (UTC)：2025-02-06。"],[],[],null,["# Create a button\n\n\u003cbr /\u003e\n\nButtons let the user trigger a defined action. There are five types of\nbutton:\n\n| Type | Appearance | Purpose |\n|-------------------------------|-----------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| [Filled](#create-filled) | Solid background with contrasting text. | For primary actions, such as \"Submit\" and \"Save.\" The shadow effect emphasizes the button's importance. |\n| [Tonal](#create-filled-tonal) | Background color varies to match the surface. | For primary or significant actions. Filled buttons provide visual weight and are appropriate for actions like \"Add to cart\" and \"Sign in.\" |\n| [Elevated](#create-elevated) | Shadow makes it stand out. | For primary or significant actions. Increase elevation to make the button more prominent. |\n| [Outlined](#create-outlined) | Features a border with no fill. | For actions that are important but not primary. Outlined buttons pair well with other buttons to indicate alternative, secondary actions like \"Cancel\" or \"Back.\" |\n| [Text](#create-text) | Text with no background or border. | For less critical actions such as navigational links, or secondary actions like \"Learn more\" or \"View details.\" |\n\nVersion compatibility\n---------------------\n\nThis implementation requires that your project minSDK be set to API level 21 or\nhigher.\n\n### Dependencies\n\n### Kotlin\n\n\u003cbr /\u003e\n\n```kotlin\n implementation(platform(\"androidx.compose:compose-bom:2025.08.00\"))\n \n```\n\n\u003cbr /\u003e\n\n### Groovy\n\n\u003cbr /\u003e\n\n```groovy\n implementation platform('androidx.compose:compose-bom:2025.08.00')\n \n```\n\n\u003cbr /\u003e\n\nCreate a filled button\n----------------------\n\nThe filled button component uses the basic [`Button`](/reference/kotlin/androidx/compose/material3/package-summary?#Button(kotlin.Function0,androidx.compose.ui.Modifier,kotlin.Boolean,androidx.compose.ui.graphics.Shape,androidx.compose.material3.ButtonColors,androidx.compose.material3.ButtonElevation,androidx.compose.foundation.BorderStroke,androidx.compose.foundation.layout.PaddingValues,androidx.compose.foundation.interaction.MutableInteractionSource,kotlin.Function1)) composable. It is\nfilled with a solid color by default.\n\n\u003cbr /\u003e\n\n```kotlin\n@Composable\nfun FilledButtonExample(onClick: () -\u003e Unit) {\n Button(onClick = { onClick() }) {\n Text(\"Filled\")\n }\n}\n \n https://github.com/android/snippets/blob/dd30aee903e8c247786c064faab1a9ca8d10b46e/compose/snippets/src/main/java/com/example/compose/snippets/components/Button.kt#L58-L63\n \n```\n\n\u003cbr /\u003e\n\n### Results\n\n**Figure 1.** A filled button.\n\nCreate a filled tonal button\n----------------------------\n\nThe filled tonal button component uses the [`FilledTonalButton`](/reference/kotlin/androidx/compose/material3/package-summary#FilledTonalButton(kotlin.Function0,androidx.compose.ui.Modifier,kotlin.Boolean,androidx.compose.ui.graphics.Shape,androidx.compose.material3.ButtonColors,androidx.compose.material3.ButtonElevation,androidx.compose.foundation.BorderStroke,androidx.compose.foundation.layout.PaddingValues,androidx.compose.foundation.interaction.MutableInteractionSource,kotlin.Function1)) composable.\nIt is filled with a tonal color by default.\n\n\u003cbr /\u003e\n\n```kotlin\n@Composable\nfun FilledTonalButtonExample(onClick: () -\u003e Unit) {\n FilledTonalButton(onClick = { onClick() }) {\n Text(\"Tonal\")\n }\n}\n \n https://github.com/android/snippets/blob/dd30aee903e8c247786c064faab1a9ca8d10b46e/compose/snippets/src/main/java/com/example/compose/snippets/components/Button.kt#L67-L72\n \n```\n\n\u003cbr /\u003e\n\n### Results\n\n**Figure 2.** A tonal button.\n\nCreate an outlined button\n-------------------------\n\nThe outlined button component uses the [`OutlinedButton`](/reference/kotlin/androidx/compose/material3/package-summary#OutlinedButton(kotlin.Function0,androidx.compose.ui.Modifier,kotlin.Boolean,androidx.compose.ui.graphics.Shape,androidx.compose.material3.ButtonColors,androidx.compose.material3.ButtonElevation,androidx.compose.foundation.BorderStroke,androidx.compose.foundation.layout.PaddingValues,androidx.compose.foundation.interaction.MutableInteractionSource,kotlin.Function1)) composable. It\nappears with an outline by default.\n\n\u003cbr /\u003e\n\n```kotlin\n@Composable\nfun OutlinedButtonExample(onClick: () -\u003e Unit) {\n OutlinedButton(onClick = { onClick() }) {\n Text(\"Outlined\")\n }\n}\n \n https://github.com/android/snippets/blob/dd30aee903e8c247786c064faab1a9ca8d10b46e/compose/snippets/src/main/java/com/example/compose/snippets/components/Button.kt#L85-L90\n \n```\n\n\u003cbr /\u003e\n\n### Results\n\n**Figure 3.** An outlined button.\n\nCreate an elevated button\n-------------------------\n\nThe elevated button component uses the [`ElevatedButton`](/reference/kotlin/androidx/compose/material3/package-summary#ElevatedButton(kotlin.Function0,androidx.compose.ui.Modifier,kotlin.Boolean,androidx.compose.ui.graphics.Shape,androidx.compose.material3.ButtonColors,androidx.compose.material3.ButtonElevation,androidx.compose.foundation.BorderStroke,androidx.compose.foundation.layout.PaddingValues,androidx.compose.foundation.interaction.MutableInteractionSource,kotlin.Function1)) composable. It has\na shadow that represents the elevation effect by default and appears as\nan outlined button with a shadow.\n\n\u003cbr /\u003e\n\n```kotlin\n@Composable\nfun ElevatedButtonExample(onClick: () -\u003e Unit) {\n ElevatedButton(onClick = { onClick() }) {\n Text(\"Elevated\")\n }\n}\n \n https://github.com/android/snippets/blob/dd30aee903e8c247786c064faab1a9ca8d10b46e/compose/snippets/src/main/java/com/example/compose/snippets/components/Button.kt#L76-L81\n \n```\n\n\u003cbr /\u003e\n\n### Results\n\n**Figure 4.** An elevated button.\n\nCreate a text button\n--------------------\n\nThe text button component uses the [`TextButton`](/reference/kotlin/androidx/compose/material3/package-summary#TextButton(kotlin.Function0,androidx.compose.ui.Modifier,kotlin.Boolean,androidx.compose.ui.graphics.Shape,androidx.compose.material3.ButtonColors,androidx.compose.material3.ButtonElevation,androidx.compose.foundation.BorderStroke,androidx.compose.foundation.layout.PaddingValues,androidx.compose.foundation.interaction.MutableInteractionSource,kotlin.Function1)) composable. Until clicked,\nit appears only as text. It does not have a solid fill or outline by default.\n\n\u003cbr /\u003e\n\n```kotlin\n@Composable\nfun TextButtonExample(onClick: () -\u003e Unit) {\n TextButton(\n onClick = { onClick() }\n ) {\n Text(\"Text Button\")\n }\n}\n \n https://github.com/android/snippets/blob/dd30aee903e8c247786c064faab1a9ca8d10b46e/compose/snippets/src/main/java/com/example/compose/snippets/components/Button.kt#L94-L101\n \n```\n\n\u003cbr /\u003e\n\n### Results\n\n**Figure 5.** A text button.\n\nKey points\n----------\n\n- `onClick`: The function called when the user presses the button.\n- `enabled`: When false, this parameter causes the button to appear unavailable and inactive.\n- `colors`: An instance of `ButtonColors` that determines the colors used in the button.\n- `contentPadding`: The padding within the button.\n\nCollections that contain this guide\n-----------------------------------\n\nThis guide is part of these curated Quick Guide collections that cover\nbroader Android development goals: \n\n### Display interactive components\n\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\n--------------------------\n\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)"]]
