How to make email validation in android?

Question

I have an edit text and have implemented some validation for this but when I type "RRRR@RRRRFF.cOM" it will accept that value.How can I do that

code:-

/*validation for email*/
private boolean isValidEmail(String email) {// validation for email Id
    String emailPattern = "^[_A-Za-z0-9-\\+]+(\\.[_A-Za-z0-9-]+)*@"
            + "[A-Za-z0-9-]+(\\.[A-Za-z0-9]+)*(\\.[A-Za-z]{2,})$";

    Pattern pattern = Pattern.compile(emailPattern);
    Matcher matcher = pattern.matcher(email);
    return matcher.matches();
}

any particular reason not to use `android.util.Patterns.EMAIL_ADDRESS` ? — Blackbelt, Jun 27 '16 at 10:39
Possible duplicate of [Email Address Validation in Android on EditText](http://stackoverflow.com/questions/12947620/email-address-validation-in-android-on-edittext) — Sree, Jun 27 '16 at 10:40
thats what I am asking but when I add this value app does not show error — Siddharth, Jun 27 '16 at 10:43
because its is valid. You want to show error when it is valid?? — Emil, Jun 27 '16 at 10:45
please refer [this](http://www.computerhope.com/issues/ch001081.htm) — Sanoop Surendran, Jun 27 '16 at 10:47
please read this http://stackoverflow.com/questions/7666782/are-idn-domain-names-case-sensitive — Emil, Jun 27 '16 at 10:47
yes.. But you can accept the value in lowercase from the `EditText` to avoid this confusion — Sanoop Surendran, Jun 27 '16 at 10:51
Normally the email id are accepted in lowercases to avoid this kind of confusions — Sanoop Surendran, Jun 27 '16 at 10:52
That *is* a valid email address. Domain names are case-insensitive. Email addresses are actually case-insensitive, per the RFC, but most providers fold all case variants into one inbox. — TRiG, Aug 25 '17 at 09:37

score 0 · Answer 1 · answered Jun 27 '16 at 10:49

0

try this one:

Pattern.compile(Patterns.EMAIL_ADDRESS.toString()).matcher(textView.getText().toString()).matches()

answered Jun 27 '16 at 10:49

Vietnt134

512
7
19

1

not an answer. it will still return true in the above case – Emil Jun 27 '16 at 10:49

score 0 · Answer 2 · answered Jun 27 '16 at 10:51

Use this code.

 if (!android.util.Patterns.EMAIL_ADDRESS.matcher(emailAddress.getText().toString()).matches()) {
                        Toast.makeText(EditProfileActivity.this, getString(R.string.plzenter_valid_email), Toast.LENGTH_SHORT).show();
                        return;
                    }

Gowtham Ece · Answer 3 · 2016-06-27T11:15:48.493

0

Try this code. its works like a charm

    boolean isValid = false;

    String expression = "^[\\w\\.-]+@([\\w\\-]+\\.)+[A-Z]{2,4}$";
    CharSequence inputStr = email;

    Pattern pattern = Pattern.compile(expression, Pattern.CASE_INSENSITIVE);
    Matcher matcher = pattern.matcher(inputStr);
    if (matcher.matches()) {
        isValid = true;

    }
    return isValid;

edited Jun 27 '16 at 11:15

answered Jun 27 '16 at 11:08

Gowtham Ece

11
8

How to make email validation in android?

3 Answers3