How Can I do Error Checking?

sharish / CreditCardView

Apache License 2.0

968 stars 246 forks source link

How Can I do Error Checking? #34

Open DavidZirinsky opened 7 years ago

DavidZirinsky commented 7 years ago

How can I check if someone leaves all the fields blank? I would like to make sure a user fills out each field before returning to the calling Activity.