value(forAnimatedKey:)
Returns the most recently set value for the specified key.
Declaration
func value(forAnimatedKey key: NSCollectionViewTransitionLayout.AnimatedKey) -> CGFloatParameters
- key:
A key whose value you set previously using the Updatevalue(_:foranimatedkey:) method.
Return Value
The last value set for the key.
Discussion
Use this method to retrieve floating-point values that relate to laying out the contents of your collection view. The key you specify is a string that you define and that has some meaning to your layout’s implementation. At points during an interactive transition, you can assign new values to that key using the updateValue(_:forAnimatedKey:) method.