Track the fingers Up and Down Swipe is not working in Google VrVideoView Android

Question

I am new to google vr sdk . I implemented 360 video's in VrVideoview. I can swipe left and right while playing the video But I can't swipe up and down it. Thanks for your help in advance.

 mVrVideoView!!.isVerticalFadingEdgeEnabled = false
    mVrVideoView!!.setInfoButtonEnabled(false)
    mSeekBar!!.setOnSeekBarChangeListener(this)

    if (prefs.goggles) {
        mVrVideoView!!.displayMode = VrWidgetView.DisplayMode.FULLSCREEN_STEREO
    } else {
        mVrVideoView!!.displayMode = VrWidgetView.DisplayMode.EMBEDDED
    }
    mVrVideoView!!.setTouchTrackingEnabled(true)
    mVrVideoView!!.setTransitionViewEnabled(true)
    mVrVideoView!!.setFullscreenButtonEnabled(false)
    mVrVideoView!!.setStereoModeButtonEnabled(false)