<How to implement a validation code component> I h...

# stackoverflow

[user]

How to implement a validation code component
I have to implement a validation code component where the user has to introduce a 4 digit code in 4 diferent edit text but I don't know how to start. Never have I seen an example of this and on the internet I can't find any example.
This is what i want to implmenent:

https://i.stack.imgur.com/5dnVv.png▾

Any help would be a appreciated.