在Android Presentation中嵌入React Native内容无法显示的问题求助

各位好，我现在遇到一个React Native嵌入Android Presentation的问题，想请大家帮忙排查下：

我已经完成了Android端RN的基础配置，用标准的ReactActivity可以正常显示RN内容，这说明我的RN项目本身配置是没问题的。但我现在需要把RN内容放到Presentation（多屏场景下的副屏展示组件）里，自己写了实现代码后，RN内容完全不渲染，屏幕只显示我设置的红色背景，没有任何RN的界面元素。

以下是我实现的MyReactPresentation类代码：

class MyReactPresentation(context: Context, display: Display): Presentation(context, display), DefaultHardwareBackBtnHandler {
    private val root: ReactRootView = ReactRootView(context).apply {
        setBackgroundColor(Color.RED)
        layoutParams = ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT)
    }
    private val reactManager = (context.applicationContext as MainApplication).reactNativeHost.reactInstanceManager
    private val TAG = "MyReactPresentation"

    init {
        window?.setFlags(WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED, WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED)
    }

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(root)

        val handler = object : ReactInstanceEventListener {
            override fun onReactContextInitialized(context: ReactContext) {
                reactManager.removeReactInstanceEventListener(this)
                root.startReactApplication(reactManager, "MyReactPresentation", null)
                Log.i(TAG, "React application started")
                reactManager.onHostResume(ownerActivity, this@MyReactPresentation)
            }
        }

        reactManager.addReactInstanceEventListener(handler)
        if (!reactManager.hasStartedCreatingInitialContext()) {
            reactManager.createReactContextInBackground()
        } else {
            val currentContext = reactManager.currentReactContext
            if (currentContext != null) {
                Log.i(TAG, "React context already exists, starting app directly")
                root.startReactApplication(reactManager, "MyReactPresentation", null)
                reactManager.onHostResume(ownerActivity, this)
            }
        }
        Log.i(TAG, "onCreate completed")
    }

    override fun onAttachedToWindow() {
        super.onAttachedToWindow()
        Log.i(TAG, "onAttachedToWindow")
        val currentContext = reactManager.currentReactContext
        if (currentContext != null) {
            reactManager.onHostResume(ownerActivity, this)
        }
    }

    override fun onDetachedFromWindow() {
        super.onDetachedFromWindow()
        Log.i(TAG, "onDetachedFromWindow")
        val currentContext = reactManager.currentReactContext
        if (currentContext != null) {
            reactManager.onHostPause(ownerActivity)
        }
    }

    override fun dismiss() {
        Log.i(TAG, "dismiss")
        val currentContext = reactManager.currentReactContext
        if (currentContext != null) {
            reactManager.onHostDestroy(ownerActivity)
        }
        super.dismiss()
    }

    override fun invokeDefaultOnBackPressed() {
        super.onBackPressed()
    }
}

从logcat里看，没有任何错误日志，只有一堆类似下面的警告：

W Could not find generated setter for class com.facebook.react.views.debuggingoverlay.DebuggingOverlayManager
W Could not find generated setter for class com.facebook.react.uimanager.LayoutShadowNode
W Could not find generated setter for class com.facebook.react.views.drawer.ReactDrawerLayoutManager
W Could not find generated setter for class com.facebook.react.views.scroll.ReactHorizontalScrollViewManager
W Could not find generated setter for class com.facebook.react.views.scroll.ReactHorizontalScrollContainerViewManager
W Could not find generated setter for class com.facebook.react.views.progressbar.ReactProgressBarViewManager
W Could not find generated setter for class com.facebook.react.views.progressbar.ProgressBarShadowNode
W Could not find generated setter for class com.facebook.react.views.scroll.ReactScrollViewManager
W Could not find generated setter for class com.facebook.react.views.switchview.ReactSwitchManager
W Could not find generated setter for class com.facebook.react.views.switchview.ReactSwitchShadowNode
W Could not find generated setter for class com.facebook.react.views.safeareaview.ReactSafeAreaViewManager
W Could not find generated setter for class com.facebook.react.views.safeareaview.ReactSafeAreaViewShadowNode
W Could not find generated setter for class com.facebook.react.views.swiperefresh.SwipeRefreshLayoutManager
W Could not find generated setter for class com.facebook.react.views.text.frescosupport.FrescoBasedReactTextInlineImageViewManager
W Could not find generated setter for class com.facebook.react.views.text.frescosupport.FrescoBasedReactTextInlineImageShadowNode
W Could not find generated setter for class com.facebook.react.views.image.ReactImageManager
W Could not find generated setter for class com.facebook.react.views.modal.ReactModalHostManager
W Could not find generated setter for class com.facebook.react.views.text.ReactRawTextManager
W Could not find generated setter for class com.facebook.react.views.text.ReactRawTextShadowNode
W Could not find generated setter for class com.facebook.react.views.textinput.ReactTextInputManager
W Could not find generated setter for class com.facebook.react.views.textinput.ReactTextInputShadowNode
W Could not find generated setter for class ...（剩余类似警告省略）

我已经确认这些警告在使用ReactActivity的时候也会出现，但完全不影响RN内容渲染，所以应该不是导致Presentation里不显示的原因。代码里也已经开启了硬件加速，日志里能看到"React application started"和"onCreate completed"的打印，说明RN的初始化流程是正常走到了，但界面上就是没有RN内容。

有没有朋友遇到过类似的问题？或者能帮我看看我的Presentation实现里有没有什么遗漏的地方？

内容来源于stack exchange