StepperFormListener (vertical-stepper-form 2.7.0 API)

```
public interface StepperFormListener
```

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`onCancelledForm()`	This method will be called when the form has been cancelled, which would generally mean that the user has decided to not save/send the data (for example, by clicking on the cancellation button of the confirmation step).
`void`	`onCompletedForm()`	This method will be called when the user clicks on the last button after all the steps have been marked as completed.
`void`	`onStepAdded(int index, Step<?> addedStep)`	It will get called when a new step is added dynamically via the method addStep() of the form.
`void`	`onStepRemoved(int index)`	It will get called when a step is removed dynamically via the method removeStep() of the form.

- Method Detail
  - onCompletedForm
```
void onCompletedForm()
```
    This method will be called when the user clicks on the last button after all the steps have been marked as completed. It can be used to trigger showing loaders, sending the data, etc. Before this method gets called, the form disables the navigation between steps, as well as all the buttons. To revert the form to normal, call cancelFormCompletionOrCancellationAttempt().
  - onCancelledForm
```
void onCancelledForm()
```
    This method will be called when the form has been cancelled, which would generally mean that the user has decided to not save/send the data (for example, by clicking on the cancellation button of the confirmation step). Before this method gets called, the form disables the navigation between steps, as well as all the buttons. To revert the form to normal, call cancelFormCompletionOrCancellationAttempt().
  - onStepAdded
```
void onStepAdded(int index,
                 Step<?> addedStep)
```
    It will get called when a new step is added dynamically via the method addStep() of the form.
    
    Parameters:
    
    index - The index where the step was added.
    
    addedStep - The step that was added dynamically.
  - onStepRemoved
```
void onStepRemoved(int index)
```
    It will get called when a step is removed dynamically via the method removeStep() of the form.
    
    Parameters:
    
    index - The index of the step that was removed.