Jetpack Compose Material3大/中型TopAppBar容器颜色异常问题

我在使用Material3的Large和Medium TopAppBar时，设置containerColor后，颜色只应用到了导航图标和操作图标所在区域，标题部分没有变色，但Small和Center TopAppBar不存在这个问题。想确认是使用错误还是设计如此？

相关代码 #

class MainActivity : ComponentActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContent {
            YourProjectNameTheme {
                // A surface container using the 'background' color from the theme
                Surface(
                    modifier = Modifier.fillMaxSize(), color = MaterialTheme.colorScheme.background
                ) {
                    Column(modifier = Modifier.fillMaxSize()) {
                        MyUI()
                    }
                }
            }
        }
    }
}

@OptIn(ExperimentalMaterial3Api::class)
@Composable
fun MyUI() {
    val contextForToast = LocalContext.current.applicationContext

    LargeTopAppBar(
        title = { Text(text = "SemicolonSpace") },
        navigationIcon = {
            IconButton(onClick = {
                Toast.makeText(contextForToast, "Nav Icon Click", Toast.LENGTH_SHORT).show()
            }) {
                Icon(imageVector = Icons.Filled.Menu, contentDescription = "Menu")
            }
        },
        actions = {
            IconButton(onClick = {
                Toast.makeText(contextForToast, "Add Click", Toast.LENGTH_SHORT).show()
            }) {
                Icon(imageVector = Icons.Default.Add, contentDescription = "Add Items")
            }
        },
        colors = TopAppBarDefaults.largeTopAppBarColors(
            containerColor = Color.Green.copy(alpha = 0.3f)
        )
    )
}

运行效果 #

使用的Gradle配置 #

项目级Gradle文件

plugins {
    id 'com.android.application' version '8.0.1' apply false
    id 'com.android.library' version '8.0.1' apply false
    id 'org.jetbrains.kotlin.android' version '1.7.20' apply false
}

应用级Gradle文件

plugins {
    id 'com.android.application'
    id 'org.jetbrains.kotlin.android'
}

android {
    namespace 'com.example.yourprojectname'
    compileSdk 33

    defaultConfig {
        applicationId "com.example.yourprojectname"
        minSdk 24
        targetSdk 33
        versionCode 1
        versionName "1.0"

        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
        vectorDrawables {
            useSupportLibrary true
        }
    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
    kotlinOptions {
        jvmTarget = '1.8'
    }
    buildFeatures {
        compose true
    }
    composeOptions {
        kotlinCompilerExtensionVersion '1.3.2'
    }
    packagingOptions {
        resources {
            excludes += '/META-INF/{AL2.0,LGPL2.1}'
        }
    }
}

dependencies {

    implementation 'androidx.core:core-ktx:1.8.0'
    implementation 'androidx.lifecycle:lifecycle-runtime-ktx:2.3.1'
    implementation 'androidx.activity:activity-compose:1.5.1'
    implementation platform('androidx.compose:compose-bom:2022.10.00')
    implementation 'androidx.compose.ui:ui'
    implementation 'androidx.compose.ui:ui-graphics'
    implementation 'androidx.compose.ui:ui-tooling-preview'
    implementation 'androidx.compose.material3:material3'
    testImplementation 'junit:junit:4.13.2'
    androidTestImplementation 'androidx.test.ext:junit:1.1.5'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'
    androidTestImplementation platform('androidx.compose:compose-bom:2022.10.00')
    androidTestImplementation 'androidx.compose.ui:ui-test-junit4'
    debugImplementation 'androidx.compose.ui:ui-tooling'
    debugImplementation 'androidx.compose.ui:ui-test-manifest'
}

修复方案 #

目前该问题已在Google官方问题追踪平台上报，暂无官方修复方案。尝试过更换版本、使用background()修饰符均无效，当前可行的解决办法是用Surface或Box组件自定义顶部导航栏。

内容的提问来源于stack exchange，提问作者Kumar