CompoundAnimation<T> constructor Null safety

CompoundAnimation<T>(
  1. {required Animation<T> first,
  2. required Animation<T> next}
)

Creates a CompoundAnimation. Both arguments must be non-null. Either can be a CompoundAnimation itself to combine multiple animations.

Implementation

CompoundAnimation({
  required this.first,
  required this.next,
}) : assert(first != null),
     assert(next != null);