Accessibility value - Flutter

With Flutter, you can set an accessibility value by using the value or attributedValue property of Semantics.

When using the semantically correct element, you usually do not need to modify the accessibility value. For example, Slider, Switch and CheckBox, and others automatically assign accessibiluty values.

It is also possible to set an increasedValue and decreasedValue or attributedDecreasedValue and attributedIncreasedValue to indicate what the value will become when the user decreases or increases the value.

Some widgets include additional methods, such as semanticFormatterCallback.

Semantics(
  value: 'Custom',
  increasedValue: 'Custom + 1',
  decreasedValue: 'Custom - 1',
  child: Widget(),
);