stepsis a list,
onStepTapped, onStepContinue, onStepCancel，controlsBuilderare functions. The
enum. I will tell the detail of them one by one.
title, subtitle, contentare the widgets, the state is an
vertical. We use the
horizontalin this example.
cancel, it will print as follows.
continue, cancelbutton, you can use the
controlsBuilderto define them. The function is the same as the above. But this time, I will hide these two buttons.
Stepper. It has many parameters, the most thing you should know that this widget is very special widget. You can learn it when you need time.