public void SetupPropertyAnim <T>(SLayoutProperty <T> layoutProperty)
{
SAnimatedProperty <T> animatedProperty = layoutProperty.animatedProperty;
// Already being animated as part of a different animation?
// Cancel the animation of this property in that animation, and instead
// animate as part of a new animation.
if (animatedProperty != null)
{
var existingAnim = animatedProperty.animation;
if (existingAnim != this)
{
existingAnim.RemovePropertyAnim(animatedProperty);
animatedProperty = null;
}
}
// Create the animated property
// (But only if necessary: This property may have already been set
// as part of an animation, but the code may be overriding with a new value)
if (animatedProperty == null)
{
animatedProperty = SAnimatedProperty <T> .Create(_duration, _delay, layoutProperty, this);
_properties.Add(animatedProperty);
}
animatedProperty.start = layoutProperty.getter();
}
void RemovePropertyAnim(SAnimatedProperty animProperty)
{
animProperty.Remove();
// Could potentially make _properties a HashSet rather than List
// to make this faster, but I think that the Remove is rare enough
// compared to the Add that it's probably faster to keep it as a list.
if (_properties != null)
{
_properties.Remove(animProperty);
}
}
