controlsBuilder property

The callback for creating custom controls.

If null, the default controls from the current theme will be used.

This callback which takes in a context and two functions,onStepContinue and onStepCancel. These can be used to control the stepper.

Sample Code:

Creates a stepper control with custom buttons.

Stepper(
  controlsBuilder:
    (BuildContext context, {VoidCallback onStepContinue, VoidCallback onStepCancel}) {
       return Row(
         children: <Widget>[
           FlatButton(
             onPressed: onStepContinue,
             child: const Text('My Awesome Continue Message!'),
           ),
           FlatButton(
             onPressed: onStepCancel,
             child: const Text('My Awesome Cancel Message!'),
           ),
         ],
       ),
    },
  steps: const <Step>[
    Step(
      title: Text('A'),
      content: SizedBox(
        width: 100.0,
        height: 100.0,
      ),
    ),
    Step(
      title: Text('B'),
      content: SizedBox(
        width: 100.0,
        height: 100.0,
      ),
    ),
  ],
)