//Private methods
private void Expand()
{
if (Flag == MenusArray.Count)
{
IsAnimating = flase;
Timer.Invalidate();
Timer = null;
return;
}
var Tag = 1000 + Flag;
ApexMenuItem item = this.ViewWithTag(Tag);
var rotateAnimation = (CAKeyFrameAnimation)CAKeyFrameAnimation.FromKeyPath("transform.rotation.z");
rotateAnimation.Values = new NSNumber[] { this.ExpandRotation, 0.0f };
rotateAnimation.Duration = AnimationDuration;
rotateAnimation.KeyTimes = new NSNumber[] { 0.3f, 0.4f };
var positionAnimation = (CAKeyFrameAnimation)CAKeyFrameAnimation.FromKeyPath("position");
positionAnimation.Duration = AnimationDuration;
var path = new CGPath();
path.MoveToPoint(item.StartPoint.X, item.StartPoint.Y);
path.AddLineToPoint(item.FarPoint.X, item.FarPoint.Y);
path.AddLineToPoint(item.NearPoint.X, item.NearPoint.Y);
path.AddLineToPoint(item.EndPoint.X, item.EndPoint.Y);
positionAnimation.Path = path;
var animationGroup = new CAAnimationGroup();
animationGroup.Animations = new CAAnimation[] { positionAnimation, rotateAnimation };
animationGroup.Duration = AnimationDuration;
animationGroup.FillMode = CAFillMode.Forwards;
animationGroup.TimingFunction = CAMediaTimingFunction.FromName(CAMediaTimingFunction.EaseIn);
//animationgroup.delegate = self;
if (Flag == MenusArray.Count - 1)
{
animationGroup.SetValueForKey("firstAnimation", "id");
}
item.Layer.AddAnimation(animationGroup, "Expand");
item.Center = item.EndPoint;
Flag++;
}
