Android Edittext Validate for all digits

Question

Hi in my android application I have an edittext where inputtype is person name, but for that special characters are allowed, what I need is an edittext where I need to enter only digits and letters. But I need to validate for all digits, if all digits enter means error message need to shown.

I did like this

android:digits="0123456789qwertzuiopasdfghjklyxcvbnmQWERTZUIOPASDFGHJKLYXCVBNM"

            android:inputType="textFilter"

and with this we can enter all digits also... but if user enter all digits I need to show a error message.

Please take a look at following link http://stackoverflow.com/a/15111450/2793134 — Nitin Mesta, Nov 27 '15 at 06:50

score 6 · Accepted Answer · answered Nov 27 '15 at 07:18

6

There is an in-built function in TextUtils class to check if the string contains only digits. You could use that.

if (TextUtils.isDigitsOnly(your_string)) {
//show error message
return;
}

answered Nov 27 '15 at 07:18

Abhishek V

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score 0 · Answer 2 · answered Nov 27 '15 at 06:20

0

I think what you want to check is the string is Alphanumeric or not.
So you can actually use Apache Commons Lang's StringUtils

StringUtils.isAlphanumeric(editText.getText().toString())

answered Nov 27 '15 at 06:20

Niko Adrianus Yuwono

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so this checks whether it is alpha numeric .. but name can be only letters .. for most of the people name is only letters.. then how we will check – roshanpeter Nov 27 '15 at 06:24
Wait so you only want the user to enter letters only without digit? – Niko Adrianus Yuwono Nov 27 '15 at 06:51
For a name most of the time only letters will be there or combination of letters and numbers, numbers alone wont be there.. I need to validate the numbers alone part – roshanpeter Nov 27 '15 at 08:56

score 0 · Answer 3 · answered Nov 27 '15 at 07:05

You can also check for all digits like

 public static boolean validateString(String input)
    {
        try {
            int i = Integer.parseInt(input);
            return false;
        } catch (NumberFormatException e) {
            e.printStackTrace();
            return true;
        }
    }

Android Edittext Validate for all digits

3 Answers3