Jetpack Compose构建悬浮窗遇重复类编译错误求助

一、解决Kotlin stdlib重复类构建错误 #

你遇到的checkDebugDuplicateClasses错误，根源是androidx.lifecycle:lifecycle-runtime-ktx:2.6.0依赖的Kotlin stdlib版本（1.8.10）与项目中已有的kotlin-stdlib-jdk7-1.7.21、kotlin-stdlib-jdk8-1.7.21版本冲突，可通过以下两种方式解决：

方式1：统一项目Kotlin版本 #

在项目根目录的build.gradle（或build.gradle.kts）中，将Kotlin插件版本和stdlib版本统一为1.8.10：

// 项目级build.gradle
buildscript {
    ext {
        kotlin_version = "1.8.10"
    }
    dependencies {
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
    }
}

同时在模块级build.gradle中替换旧的stdlib依赖，确保版本统一：

// 模块级build.gradle
implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"

方式2：排除Lifecycle依赖中的冲突stdlib #

如果无法统一Kotlin版本，可在添加Lifecycle依赖时直接排除旧版本的stdlib：

implementation("androidx.lifecycle:lifecycle-runtime-ktx:2.6.0") {
    exclude group: "org.jetbrains.kotlin", module: "kotlin-stdlib-jdk7"
    exclude group: "org.jetbrains.kotlin", module: "kotlin-stdlib-jdk8"
}

二、优化Jetpack Compose悬浮窗代码 #

你当前的代码存在冗余逻辑（手动管理Recomposer等），以下是简化后的实现，同时保证Lifecycle管理的正确性：

1. 简化自定义LifecycleOwner实现 #

internal class MyLifecycleOwner : SavedStateRegistryOwner {
    private val lifecycleRegistry = LifecycleRegistry(this)
    private val savedStateRegistryController = SavedStateRegistryController.create(this)

    override val savedStateRegistry: SavedStateRegistry
        get() = savedStateRegistryController.savedStateRegistry
    override val lifecycle: Lifecycle
        get() = lifecycleRegistry

    fun onCreate() {
        savedStateRegistryController.performRestore(null)
        lifecycleRegistry.handleLifecycleEvent(Lifecycle.Event.ON_CREATE)
    }

    fun onDestroy() {
        lifecycleRegistry.handleLifecycleEvent(Lifecycle.Event.ON_DESTROY)
    }
}

2. Service中创建悬浮窗的简化代码 #

val windowManager = getSystemService(WINDOW_SERVICE) as WindowManager
val params = WindowManager.LayoutParams().apply {
    width = 500
    height = 500
    type = WindowManager.LayoutParams.TYPE_ACCESSIBILITY_OVERLAY
    gravity = Gravity.TOP or Gravity.CENTER_HORIZONTAL
    format = PixelFormat.TRANSPARENT
    flags = WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
}

val composeView = ComposeView(this).apply {
    setContent {
        Text(
            text = "Hello",
            color = Color.Black,
            fontSize = 50.sp,
            modifier = Modifier.wrapContentSize().background(Color.Green)
        )
    }
}

// 初始化LifecycleOwner
val lifecycleOwner = MyLifecycleOwner()
lifecycleOwner.onCreate()

// 绑定Lifecycle相关Owner
composeView.apply {
    setViewTreeLifecycleOwner(lifecycleOwner)
    setViewTreeSavedStateRegistryOwner(lifecycleOwner)
    setViewTreeViewModelStoreOwner(lifecycleOwner)
}

windowManager.addView(composeView, params)

// Service销毁时必须清理资源
override fun onDestroy() {
    super.onDestroy()
    lifecycleOwner.onDestroy()
    windowManager.removeView(composeView)
}

注意：

• 无需手动创建Recomposer和CoroutineScope，ComposeView.setContent()会自动初始化这些组件
• Service销毁时必须移除悬浮窗并调用Lifecycle的ON_DESTROY事件，避免内存泄漏

内容的提问来源于stack exchange，提问作者one_no_yami_