How to validate edit text field to allow user enter only text input in android?

Question

I need to validate the text field to input only text. No numeric or special characters allowed.

in the XML, add this:... android:digits="abcdefghijklmnopqrstuvwxyz " — Jai Khambhayta, May 19 '17 at 09:08

score 1 · Accepted Answer · answered May 19 '17 at 08:53

1

Try this one bro

android:digits=" ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"

set edittext property with capital and small

answered May 19 '17 at 08:53

Ratilal Chopda

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score 0 · Answer 2 · answered May 19 '17 at 08:54

You can do it using regex, validate users input. Use the following function:

public boolean AlphaCheck(String name) {
            return name.matches("[a-zA-Z]+");
        }

Send the string(users input) to this function and if the input is valid it will return true and you can then proceed based on that.

Here is another way to do it

public boolean AlphaCheck(String name) {
char[] chars = name.toCharArray();

for (char c : chars) {
    if(!Character.isLetter(c)) {
        return false;
    }
}

return true;

}

score 0 · Answer 3 · answered May 19 '17 at 08:58

You can create a filter for this

private String unwantedChars = "~#^|$%&*!1234567890";

private InputFilter filter = new InputFilter() {

    @Override
    public CharSequence filter(CharSequence source, int start, int end, 
      Spanned dest, int dstart, int dend) {

        if (source != null && unwantedChars.contains(("" + source))) {
            return "";
        }
        return null;
    }
};

editText.setFilters(new InputFilter[] { filter });

How to validate edit text field to allow user enter only text input in android?

3 Answers3