custom widget onchange value int in flutter code example
Example: edite text in flutter
Widget _editTitleTextField() { if (_isEditingText) return Center( child: TextField( onSubmitted: (newValue){ setState(() { initialText = newValue; _isEditingText =false; }); }, autofocus: true, controller: _editingController, ), ); return InkWell( onTap: () { setState(() { _isEditingText = true; }); }, child: Text( initialText, style: TextStyle( color: Colors.black, fontSize: 18.0, ), );}