How should I validate an e-mail address?

Question

What\'s a good technique for validating an e-mail address (e.g. from a user input field) in Android? org.apache.commons.validator.routines.EmailValidator doesn\'t seem to be

Answer 1

We have a simple Email pattern matcher now.

Java:

 private static boolean isValidEmail(String email) {
        return !TextUtils.isEmpty(email) && android.util.Patterns.EMAIL_ADDRESS.matcher(email).matches();
    }

Kotlin Function:

 private fun isValidEmail(email: String): Boolean {
        return !TextUtils.isEmpty(email) && Patterns.EMAIL_ADDRESS.matcher(email).matches()
    }

Kotlin Extension:

fun String.isValidEmail() =
    !TextUtils.isEmpty(this) && Patterns.EMAIL_ADDRESS.matcher(this).matches()