android - 使用撰写 View 从 fragment 导航回来时崩溃

Question

时间线 fragment

class TimelineFragment : Fragment() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        
        val axis = MaterialSharedAxis.Z

        val forward = MaterialSharedAxis(axis, true)
        val backward = MaterialSharedAxis(axis, false)

        enterTransition = forward
        exitTransition = forward
        reenterTransition = backward
        returnTransition = backward
    }

    override fun onCreateView(
        inflater: LayoutInflater,
        container: ViewGroup?,
        savedInstanceState: Bundle?
    ) = ComposeView(requireActivity()).apply { 
        setContent { 
            Text(text = "Testing")
        }
    }
}

从该 fragment 单击后退按钮时，应用程序崩溃并打印此堆栈跟踪

E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.farmersbyte.agripro, PID: 8524
java.lang.UnsupportedOperationException: Cannot add views to ComposeView; only Compose content is supported
    at androidx.compose.ui.platform.AbstractComposeView.checkAddView(ComposeView.android.kt:202)
    at androidx.compose.ui.platform.AbstractComposeView.addView(ComposeView.android.kt:346)
    at androidx.transition.TransitionUtils.createViewBitmap(TransitionUtils.java:138)
    at androidx.transition.TransitionUtils.copyViewImage(TransitionUtils.java:64)
    at androidx.transition.Visibility.onDisappear(Visibility.java:404)
    at androidx.transition.Visibility.createAnimator(Visibility.java:257)
    at androidx.transition.Transition.createAnimators(Transition.java:744)
    at androidx.transition.TransitionSet.createAnimators(TransitionSet.java:480)
    at androidx.transition.TransitionSet.createAnimators(TransitionSet.java:480)
    at androidx.transition.Transition.playTransition(Transition.java:1808)
    at androidx.transition.TransitionManager$MultiListener.onPreDraw(TransitionManager.java:300)
    at android.view.ViewTreeObserver.dispatchOnPreDraw(ViewTreeObserver.java:1088)
    at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2745)
    at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1721)
    at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:7598)
    at android.view.Choreographer$CallbackRecord.run(Choreographer.java:966)
    at android.view.Choreographer.doCallbacks(Choreographer.java:790)
    at android.view.Choreographer.doFrame(Choreographer.java:725)
    at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:951)
    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:492)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930)

使用 jetpack 导航组件进行 fragment 导航。仅在使用 MaterialSharedAxis 后按时才会发生崩溃 fragment 的过渡集。
编辑:撰写中没有问题 1.0.1但在版本 1.1.0 中出现崩溃以上。

Answer 1

我遇到过同样的问题。如果你有 Fragment A 和 B. Fragment A 有 exitTransition 设置，当从 A 导航到 B 时，它会因错误而崩溃。所以我的解决方法是删除exitTransition。认为这是新撰写库中的错误。我只在升级到最新版本时才看到这个问题:compose.* 1.1.1 和 compose.compiler 1.2。