MaterialSlice constructor Null safety

const MaterialSlice(
  1. {required LocalKey key,
  2. required Widget child,
  3. Color? color}
)

Creates a slice of Material that's mergeable within a MergeableMaterial.

Implementation

const MaterialSlice({
  required LocalKey key,
  required this.child,
  this.color,
}) : assert(key != null),
     super(key);