- add
Adds a layer if it is not already present. Equivalent to #addIfAbsent(Layer).
- addAllAbsent
Adds all layers from the input collection that are not already present in this
list.
- addIfAbsent
Adds a layer if it is not already present.
- clear
Removes all layers from this list and calls their dispose methods.
- contains
- get
- indexOf
- isEmpty
- remove
Removes the specified element, which much be a Layer, from this list if present.
This method calls t
- size