protected override void OnSizeAllocated(double width, double height)
{
base.OnSizeAllocated(width, height);
//Set all defaults for Trip views
_trips = new List <TripOffset>()
{
new TripOffset {
Trip = view1, TripBackgroundImage = view0Image, Offset = 0
},
new TripOffset {
Trip = view2, TripBackgroundImage = view2Image, Offset = width
},
new TripOffset {
Trip = view3, TripBackgroundImage = view3Image, Offset = width * 2
}
};
_currentTrip = _trips[0];
view1.CalculateOffsets(0, width, 0, false);
bgImage0.Opacity = 1;
view2.CalculateOffsets(width, width, width, false);
bgImage2.Opacity = 1;
view3.CalculateOffsets(width * 2, width, width * 2, false);
bgImage3.Opacity = 1;
}
public void PanCompleted(object sender, PanEventArgs panEventArgs)
{
whiteoverlay.Opacity = .5;
scrollingContainer.IsEnabled = true;
disabled = false;
counter = 0;
if (panEventArgs.Cancelled)
{
foreach (var trip in _trips)
{
trip.Trip.CalculateOffsets(trip.Offset, scrollingContainer.Width, trip.Offset, false);
}
}
var container = sender as View;
var snapFromDistance = (Math.Abs(_lastX) + 20) > (container.Width / 2);
var snapFromSpeed = Math.Abs(panEventArgs.Velocity.X) > 800;
if (snapFromSpeed || snapFromDistance)
{
if (_lastX > 0) //show the one to the left
{
if (_trips[0] != _currentTrip)
{
foreach (var trip in _trips)
{
trip.Offset = trip.Offset + container.Width;
}
}
}
else
{
if (_trips[_trips.Count - 1] != _currentTrip)
{
foreach (var trip in _trips)
{
trip.Offset = trip.Offset - container.Width;
}
}
}
}
//Go through the trips and move into default positions.
foreach (var trip in _trips)
{
if (trip.Offset == 0)
{
_currentTrip = trip;
trip.TripBackgroundImage.Opacity = 1;
}
else
{
trip.TripBackgroundImage.Opacity = 0;
}
trip.Trip.CalculateOffsets(trip.Offset, scrollingContainer.Width, trip.Offset, true);
}
}
