Android为现有的应用工程设置 Compose

点击查看：Compose 快速入门

点击查看：Jetpack Compose 与 Kotlin 的兼容性对应关系

要开始使用 Compose，您需要先向项目中添加一些 build 配置。将以下定义添加到应用的 build.gradle 或者build.gradle.kts 文件中：

build.gradle

android {
   
    buildFeatures {
   
        compose true
    }

    composeOptions {
   
        kotlinCompilerExtensionVersion = "1.5.9"
    }

    kotlinOptions {
   
        jvmTarget = "19"
    }
}

build.gradle.kts

android {
   
    buildFeatures {
   
        compose = true
    }

    composeOptions {
   
        kotlinCompilerExtensionVersion = "1.5.9"
    }

    kotlinOptions {
   
        jvmTarget = "19"
    }
}

需要注意以下几点：

• 在 Android BuildFeatures 代码块内将 compose 标志设置为 true 会启用 Compose 功能。
• ComposeOptions 代码块中定义的 Kotlin 编译器扩展版本控制与 Kotlin 版本控制相关联。请务必参阅兼容性对应图，并选择与您项目的 Kotlin 版本匹配的库版本。

此外，请将以下部分中您需要的 Compose BoM 和 Compose 库依赖项的子集添加到您的依赖项：

build.gradle

dependencies {
   

    def composeBom = platform('androidx.compose:compose-bom:2024.02.00')
    implementation composeBom
    androidTestImplementation composeBom

    // Choose one of the following:
    // Material Design 3
    implementation 'androidx.compose.material3:material3'
    // or Material Design 2
    implementation 'androidx.compose.material:material'
    // or skip Material Design and build directly on top of foundational components
    implementation 'androidx.compose.foundation:foundation'
    // or only import the main APIs for the underlying toolkit systems,
    // such as input and measurement/layout
    implementation 'androidx.compose.ui:ui'

    // Android Studio Preview support
    implementation 'androidx.compose.ui:ui-tooling-preview'
    debugImplementation 'androidx.compose.ui:ui-tooling'

    // UI Tests
    androidTestImplementation 'androidx.compose.ui:ui-test-junit4'
    debugImplementation 'androidx.compose.ui:ui-test-manifest'

    // Optional - Included automatically by material, only add when you need
    // the icons but not the material library (e.g. when using Material3 or a
    // custom design system based on Foundation)
    implementation 'androidx.compose.material:material-icons-core'
    // Optional - Add full set of material icons
    implementation 'androidx.compose.material:material-icons-extended'
    // Optional - Add window size utils
    implementation 'androidx.compose.material3:material3-window-size-class'

    // Optional - Integration with activities
    implementation 'androidx.activity:activity-compose:1.8.2'
    // Optional - Integration with ViewModels
    implementation 'androidx.lifecycle:lifecycle-viewmodel-compose:2.6.1'
    // Optional - Integration with LiveData
    implementation 'androidx.compose.runtime:runtime-livedata'
    // Optional - Integration with RxJava
    implementation 'androidx.compose.runtime:runtime-rxjava2'

}

build.gradle.kts

dependencies {
   

    val composeBom = platform("androidx.compose:compose-bom:2024.02.00")
    implementation(composeBom)
    androidTestImplementation(composeBom)

    // Choose one of the following:
    // Material Design 3
    implementation("androidx.compose.material3:material3")
    // or Material Design 2
    implementation("androidx.compose.material:material")
    // or skip Material Design and build directly on top of foundational components
    implementation("androidx.compose.foundation:foundation")
    // or only import the main APIs for the underlying toolkit systems,
    // such as input and measurement/layout
    implementation("androidx.compose.ui:ui")

    // Android Studio Preview support
    implementation("androidx.compose.ui:ui-tooling-preview")
    debugImplementation("androidx.compose.ui:ui-tooling")

    // UI Tests
    androidTestImplementation("androidx.compose.ui:ui-test-junit4")
    debugImplementation("androidx.compose.ui:ui-test-manifest")

    // Optional - Included automatically by material, only add when you need
    // the icons but not the material library (e.g. when using Material3 or a
    // custom design system based on Foundation)
    implementation("androidx.compose.material:material-icons-core")
    // Optional - Add full set of material icons
    implementation("androidx.compose.material:material-icons-extended")
    // Optional - Add window size utils
    implementation("androidx.compose.material3:material3-window-size-class")

    // Optional - Integration with activities
    implementation("androidx.activity:activity-compose:1.8.2")
    // Optional - Integration with ViewModels
    implementation("androidx.lifecycle:lifecycle-viewmodel-compose:2.6.1")
    // Optional - Integration with LiveData
    implementation("androidx.compose.runtime:runtime-livedata")
    // Optional - Integration with RxJava
    implementation("androidx.compose.runtime:runtime-rxjava2")

}

注意：Jetpack Compose 使用物料清单 (BoM) 提供，以确保所有库组的版本保持同步。如需了解详情，请参阅“物料清单”页面。