private void OnPan(UIPanGestureRecognizer pan, Shared.Calendar calendar)
{
if (pan.State == UIGestureRecognizerState.Began)
{
var screenWidth = UIScreen.MainScreen.Bounds.Width;
var leftEdgeThreshold = screenWidth * 0.15f;
var staringPoint = pan.LocationInView(null);
if (staringPoint.X < leftEdgeThreshold)
{
_isSwipingFromLeftEdge = true;
}
}
if (pan.State != UIGestureRecognizerState.Ended)
{
return;
}
var velocity = pan.VelocityInView(null);
// going right
var isSwipingRight = velocity.X > 0;
// going left
var isSwipingLeft = velocity.X < 0;
if (_isSwipingFromLeftEdge)
{
PullOutMainMenu();
_isSwipingFromLeftEdge = false;
return;
}
if (isSwipingRight && calendar != null)
{
SwipeFrame(calendar, true);
}
if (isSwipingLeft && calendar != null)
{
SwipeFrame(calendar, false);
}
}
private static async void SwipeCalendar(Shared.Calendar cal, bool isSwipingRight)
{
if (IsViewAnimating(cal))
{
return;
}
var command = isSwipingRight ? cal.RightSwipeCommand : cal.LeftSwipeCommand;
if (cal.IsSwipingAnimated)
{
await AnimateCalendarStart(!isSwipingRight, cal);
cal.ArrowExecutionSetup(!isSwipingRight);
command?.Execute(null);
await AnimateCalendarEnd(cal);
}
else
{
cal.ArrowExecutionSetup(!isSwipingRight);
command?.Execute(null);
}
}
