带有Jetpack Compose的键盘被Composbeta-01打破(ViewTreeLifecycleOwner未从DecorView中找到)

Question

https://stackoverflow.com/questions/65755763/inputmethodservice-with-jetpack-compose-composeview-causes-composed-into-the

正如描述的那样，这里能够创建一个带有Jetpack的键盘。现在，在我将项目从alpha-11 alpha-12 升级到alpha-12之后，代码破坏了(并且仍然在beta-01中被破坏)，每当我试图打开键盘时，我都会得到以下错误：

 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$1.createRecomposer(WindowRecomposer.android.kt:98)
        at androidx.compose.ui.platform.WindowRecomposerPolicy.createAndInstallWindowRecomposer$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 这里，并且在以前的撰写版本中非常好地工作直到alpha-12。

这个错误使我不知道什么是坏的，什么是我应该改变的。也许你能帮我。

在这里，您可以找到一个可复制示例的所有代码。

Answer 1

错误消息说：

从DecorView@aaf805fInputMethod中找不到ViewTreeLifecycleOwner

在整个ViewTreeLifecycleOwner的DecorView上寻找一个Window集，而不是你的视图本身上的那个。

因此，与其在返回的ViewTree上设置ComposeKeyboardView，不如使用带有getDecorView()的getWindow()的InputMethodService API来获取窗口的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
}