Android Question Keep InputDialog open after button is pressed

[trueboss323]

On an InputDialog I'd like to check if a user inserts a correct promocode, but the dialog closes every time the button is pressed. So how can I keep the dialog open?

 

[DonManfred]

The Inputdialog will always close if you press a button.
You can check the value and show it again after button-click.

Or use an alternative dialog-library