build method
An AnimatedGradient is not intended to be built directly like a
true Widget
. Instead opt to observe for the direct Gradient-
type output.
This build()
method will return a DecoratedBox
whose gradient is set to observe.
Implementation
@override
Widget build(BuildContext context) {
// assert(
// false,
// 'An [AnimatedGradient] is not intended to be built directly '
// 'like a true Widget. \nInstead opt to [AnimatedGradient.observe] '
// 'for the direct [Gradient]-type output.',
// );
return DecoratedBox(decoration: BoxDecoration(gradient: observe));
}