ArFragment SceneView 在使用 ViewBinding 时返回 Null

如何解决ArFragment SceneView 在使用 ViewBinding 时返回 Null

当我使用视图绑定时

arFragment.arSceneView 返回 null。使用 kotlin 合成插件时，相同的代码也能工作。

override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
       
        val binding= ActivitySceneFormBinding.inflate(layoutInflater)
        setContentView(binding.root)
       

        ModelRenderable.builder()
            .setSource(this,R.raw.sunglasses2)
            .build()
            .thenAccept { modelRenderable ->
                glasses.add(modelRenderable)
                modelRenderable.isShadowCaster = false
                modelRenderable.isShadowReceiver = false
            }

        val sceneView = arFragment.arSceneView
        sceneView.cameraStreamRenderPriority = Renderable.RENDER_PRIORITY_FIRST   //scene view must not be null error
        val scene = sceneView.scene

        scene.addOnUpdateListener {
            if (faceRegionsRenderable != null) {
                sceneView.session
                    ?.getAllTrackables(AugmentedFace::class.java)?.let {
                        for (f in it) {
                            if (!faceNodeMap.containsKey(f)) {
                                val faceNode = AugmentedFaceNode(f)
                                faceNode.setParent(scene)
                                faceNode.faceRegionsRenderable = faceRegionsRenderable
                                faceNodeMap[f] = faceNode
                            } else if (changeModel) {
                                faceNodeMap.getValue(f).faceRegionsRenderable = faceRegionsRenderable
                            }
                        }
                        changeModel = false
                        // Remove any AugmentedFaceNodes associated with an AugmentedFace that stopped tracking.
                        val iter = faceNodeMap.entries.iterator()
                        while (iter.hasNext()) {
                            val entry = iter.next()
                            val face = entry.key
                            if (face.trackingState == TrackingState.STOPPED) {
                                val faceNode = entry.value
                                faceNode.setParent(null)
                                iter.remove()
                            }
                        }
                    }
            }
        }
    }