Results for “ScaffoldMessenger”

SnackBar` API within the `Scaffold` is now handled by the `ScaffoldMessenger`, one of which is available by default within the context of a `MaterialApp`. The previous approach

SnackBar with an action, set `persist` to `false`. Code before migration: ```dart ScaffoldMessenger.of(context).showSnackBar( SnackBar( content: const Text('This is a snackbar with an action.'), action: SnackBarAction

This migration guide describes conversion of code that uses the `nullOk` parameter

ElevatedButton OutlinedButton ButtonTheme TextButtonTheme ElevatedButtonTheme OutlinedButtonTheme ButtonStyle ButtonStyleButton ElevatedButtonThemeData OutlinedButtonThemeData TextButtonThemeData Scaffold SnackBar ScaffoldMessenger MaterialApp RectangularSliderTrackShape.disabledThumbGapWidth RectangularSliderTrackShape ThemeData TextSelectionThemeData RenderEditable.onSelectionChanged TextSelectionDelegate.textEditingValue TextSelectionDelegate.userUpdateTextEditingValue TextInputFormatter