private void enableTalkBack ( ) { GVRSceneObject [ ] sceneObjects = mGvrContext . getMainScene ( ) . getWholeSceneObjects ( ) ; for ( GVRSceneObject sceneObject : sceneObjects ) { if ( sceneObject instanceof GVRAccessiblityObject ) if ( ( ( GVRAccessiblityObject ) sceneObject ) . getTalkBack ( ) != null ) ( ( GVRAccessiblityObject ) sceneObject ) . getTalkBack ( ) . setActive ( true ) ; } }
find all accessibility object and set active true for enable talk back .