public static UIPanGestureRecognizer DismissBySwiping(this DismissableOnboardingStep step, TimeEntriesLogViewCell cell, Direction direction)
{
async void onGesture(UIPanGestureRecognizer recognizer)
{
var isOneTouch = recognizer.NumberOfTouches == 1;
var isVisible = await step.ShouldBeVisible.FirstAsync();
var isInDesiredDirection = Sign(recognizer.VelocityInView(cell).X) == Sign((int)direction);
if (isOneTouch && isVisible && isInDesiredDirection)
{
step.Dismiss();
}
}
var panGestureRecognizer = new UIPanGestureRecognizer(onGesture)
{
ShouldRecognizeSimultaneously = (a, b) => true
};
IDisposable visibilityDisposable = null;
visibilityDisposable = step.ShouldBeVisible
.Where(visible => visible == false)
.ObserveOn(SynchronizationContext.Current)
.Subscribe(_ =>
{
cell.RemoveGestureRecognizer(panGestureRecognizer);
visibilityDisposable?.Dispose();
});
cell.AddGestureRecognizer(panGestureRecognizer);
return(panGestureRecognizer);
}
private void updateSwipeDismissGestures(TimeEntriesLogViewCell nextFirstTimeEntry)
{
if (swipeLeftGestureRecognizer != null)
{
firstTimeEntry?.RemoveGestureRecognizer(swipeLeftGestureRecognizer);
}
swipeLeftAnimationDisposable?.Dispose();
swipeRightAnimationDisposable?.Dispose();
if (nextFirstTimeEntry == null)
{
return;
}
swipeLeftAnimationDisposable = swipeLeftStep.ManageSwipeActionAnimationOf(nextFirstTimeEntry, Direction.Left);
swipeRightAnimationDisposable = swipeRightStep.ManageSwipeActionAnimationOf(nextFirstTimeEntry, Direction.Right);
swipeLeftGestureRecognizer = swipeLeftStep.DismissBySwiping(nextFirstTimeEntry, Direction.Left);
}