Validation allow only number and characters in edit text in android

Question

In my application I have to validate the EditText. It should only allow character, digits, underscores, and hyphens.

Here is my code:

edit         


        

Answer 1

You can validate this by two ways , both worked for me, hope will be helpful for you too.

1> Mentioning the chars in your edittext .

android:digits="0,1,2,3,4,5,6,7,8,9,*,qwertzuiopasdfghjklyxcvbnm,_,-" 

2> Can validate pragmatically as answered by milos pragmatically