public MySimpleOnPageChangeListener(CustomViewAbove view)
 {
     this.view = view;
 }
        /// <summary>
        /// Instantiates a new SlidingMenu.
        /// </summary>
        /// <param name="context"> the associated Context </param>
        /// <param name="attrs"> the attrs </param>
        /// <param name="defStyle"> the def style </param>
        public SlidingMenu(Context context, IAttributeSet attrs, int defStyle) : base(context, attrs, defStyle)
        {
            LayoutParams behindParams = new LayoutParams(ViewGroup.LayoutParams.MatchParent, ViewGroup.LayoutParams.MatchParent);

            mViewBehind = new CustomViewBehind(context);
            AddView(mViewBehind, behindParams);
            LayoutParams aboveParams = new LayoutParams(ViewGroup.LayoutParams.MatchParent, ViewGroup.LayoutParams.MatchParent);

            mViewAbove = new CustomViewAbove(context);
            AddView(mViewAbove, aboveParams);
            // register the CustomViewBehind with the CustomViewAbove
            mViewAbove.CustomViewBehind = mViewBehind;
            mViewBehind.CustomViewAbove = mViewAbove;
            mViewAbove.SetInternalPageChangeListener(new MyOnPageChangeListener(this));

            // now style everything!
            TypedArray ta = context.ObtainStyledAttributes(attrs, Resource.Styleable.SlidingMenu);
            // set the above and behind views if defined in xml
            int mode = ta.GetInt(Resource.Styleable.SlidingMenu_mode, LEFT);

            Mode = mode;
            int viewAbove = ta.GetResourceId(Resource.Styleable.SlidingMenu_viewAbove, -1);

            if (viewAbove != -1)
            {
                SetContent(viewAbove);
            }
            else
            {
                SetContent(new FrameLayout(context));
            }
            int viewBehind = ta.GetResourceId(Resource.Styleable.SlidingMenu_viewBehind, -1);

            if (viewBehind != -1)
            {
                SetMenu(viewBehind);
            }
            else
            {
                SetMenu(new FrameLayout(context));
            }
            int touchModeAbove = ta.GetInt(Resource.Styleable.SlidingMenu_touchModeAbove, TOUCHMODE_MARGIN);

            TouchModeAbove = touchModeAbove;
            int touchModeBehind = ta.GetInt(Resource.Styleable.SlidingMenu_touchModeBehind, TOUCHMODE_MARGIN);

            TouchModeBehind = touchModeBehind;

            int offsetBehind = (int)ta.GetDimension(Resource.Styleable.SlidingMenu_behindOffset, -1);
            int widthBehind  = (int)ta.GetDimension(Resource.Styleable.SlidingMenu_behindWidth, -1);

            if (offsetBehind != -1 && widthBehind != -1)
            {
                throw new IllegalStateException("Cannot set both behindOffset and behindWidth for a SlidingMenu");
            }
            else if (offsetBehind != -1)
            {
                BehindOffset = offsetBehind;
            }
            else if (widthBehind != -1)
            {
                BehindWidth = widthBehind;
            }
            else
            {
                BehindOffset = 0;
            }
            float scrollOffsetBehind = ta.GetFloat(Resource.Styleable.SlidingMenu_behindScrollScale, 0.33f);

            BehindScrollScale = scrollOffsetBehind;
            int shadowRes = ta.GetResourceId(Resource.Styleable.SlidingMenu_shadowDrawable, -1);

            if (shadowRes != -1)
            {
                ShadowDrawableResource = shadowRes;
            }
            int shadowWidth = (int)ta.GetDimension(Resource.Styleable.SlidingMenu_shadowWidth, 0);

            ShadowWidth = shadowWidth;
            bool fadeEnabled = ta.GetBoolean(Resource.Styleable.SlidingMenu_fadeEnabled, true);

            FadeEnabled = fadeEnabled;
            float fadeDeg = ta.GetFloat(Resource.Styleable.SlidingMenu_fadeDegree, 0.33f);

            FadeDegree = fadeDeg;
            bool selectorEnabled = ta.GetBoolean(Resource.Styleable.SlidingMenu_selectorEnabled, false);

            SelectorEnabled = selectorEnabled;
            int selectorRes = ta.GetResourceId(Resource.Styleable.SlidingMenu_selectorDrawable, -1);

            if (selectorRes != -1)
            {
                SelectorDrawable = selectorRes;
            }
            ta.Recycle();
        }