Helper Classes

Standard displays shown after an action (FirstBackPress / DoubleBackPress)

• ToastDisplay : standard Toast

  Example to show toast for Toast.LENGTH_SHORT period of time upon the first back button press, with a message reading "Press back button to confirm".

  FirstBackPressAction firstBackPressAction = new ToastDisplay()
              .standard(this);                                        //required
  
  DoubleBackPress doubleBackPress = new DoubleBackPress()
              .withFirstBackPressAction(firstBackPressAction)
              ...

  Example to show toast for Toast.LENGTH_SHORT period of time upon the first back button press, with a message reading "Press back button to Exit".

  FirstBackPressAction firstBackPressAction = new ToastDisplay()
              .standard(this, "Press back button to Exit");            //required
  
  DoubleBackPress doubleBackPress = new DoubleBackPress()
              .withFirstBackPressAction(firstBackPressAction)
              ...

• SnackbarDisplay : standard Snackbar

  Note : Since Snackbar require the callers's parent view, the SnackbarDisplay class needs to be set and provided to the DoubleBackPress object after the View is set. Example, in an Activity, this would be inside the onCreate() function, after the setContentView() function is called.

  Example to show snackbar for Snackbar.LENGTH_SHORT period of time upon the first back button press, with a message reading "Press back button to confirm".

  //after the view is initialized
  FirstBackPressAction firstBackPressAction = new Snackbar()
              .standard(parentView);                                        //required
  
  doubleBackPress.setFirstBackPressAction(firstBackPressAction)

  Example to show snackbar for Snackbar.LENGTH_SHORT period of time upon the first back button press, with a message reading "Press back button to Exit".

  //after the view is initialized
  FirstBackPressAction firstBackPressAction = new Snackbar()
              .standard(parentView, "Press back button to Exit");            //required
  
  doubleBackPress.setFirstBackPressAction(firstBackPressAction)