maybeOf method Null safety

ScaffoldState? maybeOf(
  1. BuildContext context
)

Finds the ScaffoldState from the closest instance of this class that encloses the given context.

If no instance of this class encloses the given context, will return null. To throw an exception instead, use of instead of this function.

This method can be expensive (it walks the element tree).

See also:

  • of, a similar function to this one that throws if no instance encloses the given context. Also includes some sample code in its documentation.

Implementation

static ScaffoldState? maybeOf(BuildContext context) {
  assert(context != null);
  return context.findAncestorStateOfType<ScaffoldState>();
}