Updates to ResizableComponent (#516)

* Adding snippet for MV-HEVC video playback

* updating the resizable snippet to include ResizeListener

Author: vad710

xr/src/main/java/com/example/xr/scenecore/Entities.kt

@@ -29,6 +29,9 @@ import androidx.xr.scenecore.MovableComponent
 import androidx.xr.scenecore.PlaneSemantic
 import androidx.xr.scenecore.PlaneType
 import androidx.xr.scenecore.ResizableComponent
+import androidx.xr.scenecore.ResizeListener
+import androidx.xr.scenecore.SurfaceEntity
+import java.util.concurrent.Executor
 import java.util.concurrent.Executors
 
 private fun setPoseExample(entity: Entity) {
@@ -73,11 +76,26 @@ private fun moveableComponentExample(session: Session, entity: Entity) {
     // [END androidxr_scenecore_moveableComponentExample]
 }
 
-private fun resizableComponentExample(session: Session, entity: Entity) {
+private fun resizableComponentExample(session: Session, entity: Entity, executor: Executor) {
     // [START androidxr_scenecore_resizableComponentExample]
     val resizableComponent = ResizableComponent.create(session)
     resizableComponent.minimumSize = Dimensions(177f, 100f, 1f)
     resizableComponent.fixedAspectRatio = 16f / 9f // Specify a 16:9 aspect ratio
+
+    resizableComponent.addResizeListener(
+        executor,
+        object : ResizeListener {
+            override fun onResizeEnd(entity: Entity, finalSize: Dimensions) {
+
+                // update the size in the component
+                resizableComponent.size = finalSize
+
+                // update the Entity to reflect the new size
+                (entity as SurfaceEntity).canvasShape = SurfaceEntity.CanvasShape.Quad(finalSize.width, finalSize.height)
+            }
+        },
+    )
+
     entity.addComponent(resizableComponent)
     // [END androidxr_scenecore_resizableComponentExample]
 }