public void TextviewClickHandle(object sender, EventArgs e) 
		{
			Boolean rounded = false;
			styleButton.Text = rounded ? Resources.GetString (Resource.String.rounded) //
				: Resources.GetString (Resource.String.squared);

			rounded = !rounded;

			drawerArrowDrawable = new DrawerArrowDrawable(Resources, rounded);
			drawerArrowDrawable.setParameter(offset);
			drawerArrowDrawable.setFlip(flipped);
			drawerArrowDrawable.setStrokeColor(Resources.GetColor(Resource.Color.light_gray));

			imageView.SetImageDrawable(drawerArrowDrawable);
		}
        public void TextviewClickHandle(object sender, EventArgs e)
        {
            Boolean rounded = false;

            styleButton.Text = rounded ? Resources.GetString(Resource.String.rounded)              //
                                : Resources.GetString(Resource.String.squared);

            rounded = !rounded;

            drawerArrowDrawable = new DrawerArrowDrawable(Resources, rounded);
            drawerArrowDrawable.setParameter(offset);
            drawerArrowDrawable.setFlip(flipped);
            drawerArrowDrawable.setStrokeColor(Resources.GetColor(Resource.Color.light_gray));

            imageView.SetImageDrawable(drawerArrowDrawable);
        }
		protected override void OnCreate (Bundle bundle)
		{
			base.OnCreate (bundle);

			// Set our view from the "main" layout resource
			SetContentView (Resource.Layout.Main);

			drawer =  FindViewById<DrawerLayout>(Resource.Id.drawer_layout);
			imageView =FindViewById<ImageView>(Resource.Id.drawer_indicator);
			styleButton = FindViewById<TextView>(Resource.Id.indicator_style);
			Resources resources = Resources;

			drawerArrowDrawable = new DrawerArrowDrawable(resources);
			drawerArrowDrawable.setStrokeColor(resources.GetColor(Resource.Color.light_gray));
			imageView.SetImageDrawable (drawerArrowDrawable);

			drawer.SetDrawerListener (this);
			imageView.Click += ImageClickHandle ;
			styleButton.Click += TextviewClickHandle;
		}
        protected override void OnCreate(Bundle bundle)
        {
            base.OnCreate(bundle);

            // Set our view from the "main" layout resource
            SetContentView(Resource.Layout.Main);

            drawer      = FindViewById <DrawerLayout>(Resource.Id.drawer_layout);
            imageView   = FindViewById <ImageView>(Resource.Id.drawer_indicator);
            styleButton = FindViewById <TextView>(Resource.Id.indicator_style);
            Resources resources = Resources;

            drawerArrowDrawable = new DrawerArrowDrawable(resources);
            drawerArrowDrawable.setStrokeColor(resources.GetColor(Resource.Color.light_gray));
            imageView.SetImageDrawable(drawerArrowDrawable);

            drawer.SetDrawerListener(this);
            imageView.Click   += ImageClickHandle;
            styleButton.Click += TextviewClickHandle;
        }