public bool OnTouch(View v, MotionEvent e)
{
if (_gestureDetector.OnTouchEvent(e))
{
return(true);
}
var returnValue = _gestureDetector.OnTouchEvent(e);
var x = (int)e.RawX;
switch (e.Action)
{
case MotionEventActions.Move:
if (_start)
{
_prevScrollX = x;
_start = false;
}
break;
case MotionEventActions.Up:
_start = true;
_currentScrollX = x;
int minFactor = _itemWidth / SwipePageOnFactor;
if ((_prevScrollX - _currentScrollX) > minFactor)
{
if (_activeItem < _maxItem - 1)
{
_activeItem = _activeItem + 1;
}
}
else if ((_currentScrollX - _prevScrollX) > minFactor)
{
if (_activeItem > 0)
{
_activeItem = _activeItem - 1;
}
}
//_scrollTo = _activeItem * _itemWidth;
//SmoothScrollTo(_scrollTo, 0);
if (_activeItem != _prevActiveItem)
{
SetCenter(_activeItem);
ItemSelectedChangeEventHandlerArgs args = new ItemSelectedChangeEventHandlerArgs
{
itemSelected = _activeItem
};
OnItemSelectedChangeEventHandler(args);
}
returnValue = true;
break;
}
return(returnValue);
}
protected virtual void OnItemSelectedChangeEventHandler(ItemSelectedChangeEventHandlerArgs e)
{
EventHandler <ItemSelectedChangeEventHandlerArgs> handler = ItemSelectedChangeEventHandler;
if (handler != null)
{
handler(this, e);
}
}