protected override void OnElementChanged(ElementChangedEventArgs <View> e)
{
base.OnElementChanged(e);
if (e.OldElement != null)
{
RemoveGestureRecognizer(panGesture);
panGesture.RemoveTarget(panGestureToken);
}
if (e.NewElement != null)
{
displayMetrics = UIScreen.MainScreen.Bounds;
sH = displayMetrics.Height;
sW = displayMetrics.Width;
var dragView = Element as RadialMenu;
panGesture = new UIPanGestureRecognizer();
panGestureToken = panGesture.AddTarget(DetectPan);
AddGestureRecognizer(panGesture);
dragView.RestorePositionCommand = new Command(() =>
{
if (!firstTime)
{
Center = originalPosition;
}
});
}
}
protected override void OnElementChanged(ElementChangedEventArgs <View> e)
{
base.OnElementChanged(e);
if (e.OldElement != null)
{
RemoveGestureRecognizer(panGesture);
panGesture.RemoveTarget(panGestureToken);
}
if (e.NewElement != null)
{
var dragView = Element as DraggableView;
panGesture = new UIPanGestureRecognizer();
panGestureToken = panGesture.AddTarget(DetectPan);
AddGestureRecognizer(panGesture);
dragView.RestorePositionCommand = new Command(() =>
{
if (!firstTime)
{
Center = originalPosition;
}
});
}
}
protected override void OnElementChanged(ElementChangedEventArgs <View> e)
{
base.OnElementChanged(e);
if (e.OldElement != null)
{
RemoveGestureRecognizer(panGesture);
panGesture.RemoveTarget(panGestureToken);
}
if (e.NewElement != null)
{
var dragView = Element as DrawableAbsoluteLayout;
panGesture = new UIPanGestureRecognizer();
panGestureToken = panGesture.AddTarget(DetectPan);
AddGestureRecognizer(panGesture);
tapGesture = new UITapGestureRecognizer();
tapGesture.NumberOfTapsRequired = 2;
tapGestureToken = tapGesture.AddTarget(DetectTapped);
AddGestureRecognizer(tapGesture);
dragView.RestorePositionCommand = new Command(() =>
{
if (!firstTime)
{
Center = originalPosition;
}
});
}
}
protected override void Dispose(bool disposing)
{
if (tapToken != null)
{
tapGestureRecognizer.RemoveTarget(tapToken);
}
if (pinchToken != null)
{
pinchGestureRecognizer.RemoveTarget(pinchToken);
}
if (doubleTapToken != null)
{
doubleTapGestureRecognizer.RemoveTarget(doubleTapToken);
}
if (panToken != null)
{
panGestureRecognizer.RemoveTarget(panToken);
}
Clear();
base.Dispose(disposing);
}
