Jetpack Compose 的键盘被 Compose beta-01 破坏了（在 DecorView 中找不到 ViewTreeLifecycleOwner）

Question

如上所述我能够使用 Jetpack Compose 创建键盘。 现在，在我将项目从 alpha-11 升级到 alpha-12 后，代码损坏了 （并且在 beta-01 中仍然损坏）并且每当我收到以下错误我尝试打开键盘：

 java.lang.IllegalStateException: ViewTreeLifecycleOwner not found from DecorView@aaf805f[InputMethod]
        at androidx.compose.ui.platform.WindowRecomposer_androidKt.createLifecycleAwareViewTreeRecomposer(WindowRecomposer.android.kt:214)
        at androidx.compose.ui.platform.WindowRecomposer_androidKt.access$createLifecycleAwareViewTreeRecomposer(WindowRecomposer.android.kt:1)
        at androidx.compose.ui.platform.WindowRecomposerFactory$Companion$LifecycleAware.createRecomposer(WindowRecomposer.android.kt:98)
        at androidx.compose.ui.platform.WindowRecomposerPolicy.createAndInstallWindowRecomposer$ui_release(WindowRecomposer.android.kt:151)
        at androidx.compose.ui.platform.WindowRecomposer_androidKt.getWindowRecomposer(WindowRecomposer.android.kt:199)
        at androidx.compose.ui.platform.AbstractComposeView.ensureCompositionCreated(ComposeView.android.kt:176)
        at androidx.compose.ui.platform.AbstractComposeView.onAttachedToWindow(ComposeView.android.kt:207)
        at android.view.View.dispatchAttachedToWindow(View.java:20105)
        at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3430)
        at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3437)
        at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3437)
        at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3437)
        at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3437)
        at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3437)
        at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2052)
        at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1745)
        at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:7768)
        at android.view.Choreographer$CallbackRecord.run(Choreographer.java:967)
        at android.view.Choreographer.doCallbacks(Choreographer.java:791)
        at android.view.Choreographer.doFrame(Choreographer.java:726)
        at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:952)
        at android.os.Handler.handleCallback(Handler.java:883)
        at android.os.Handler.dispatchMessage(Handler.java:100)
        at android.os.Looper.loop(Looper.java:214)
        at android.app.ActivityThread.main(ActivityThread.java:7356)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:491)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:940)

这很奇怪，因为我已经设置了 ViewTreeLifecycleOwner here 并且在 alpha-12

之前的以前版本的 compose 中工作得很好

这个错误让我不知道什么地方坏了，我应该改变什么。也许你能帮我。

Here you can find all code for a reproducible example

Answer 1

错误消息说：

ViewTreeLifecycleOwner not found from DecorView@aaf805f[InputMethod]

Compose 在整个 Window 的 DecorView 上查找 ViewTreeLifecycleOwner 集，而不是在您的视图本身上查找集。

因此，不要在 ComposeKeyboardView 上设置 ViewTree，而是 return，而是使用 getWindow() 的 InputMethodService API getDecorView() 获取 window 的 DecorView。

override fun onCreateInputView(): View {
    val view = ComposeKeyboardView(this)
    window?.window?.decorView?.let { decorView ->
        ViewTreeLifecycleOwner.set(decorView, this)
        ViewTreeViewModelStoreOwner.set(decorView, this)
        ViewTreeSavedStateRegistryOwner.set(decorView, this)
    }
    return view
}

Jetpack Compose 的键盘被 Compose beta-01 破坏了（在 DecorView 中找不到 ViewTreeLifecycleOwner）

Keyboard with Jetpack Compose was broken by Compose beta-01 (ViewTreeLifecycleOwner not found from DecorView)

android

android-jetpack-compose