How can i validate email in android?

Question

What's wrong with my email validation??

TextInputLayout useremail_layout = (TextInputLayout) findViewById(R.id.email_layout);
String email = "";
String emailPattern = "[a-zA-Z0-9._-]+@[a-z]+\\.+[a-z]+";
if (email.matches(emailPattern)&& email.length()>0) {
    useremail_layout.setError("valid address");
} else  {
     useremail_layout.setError("invalid email");
     Email.setError(null);  
}

Answer 1

try this my friend

 String emailAddress = etSignInEmail.getText().toString().trim();

 if (android.util.Patterns.EMAIL_ADDRESS.matcher(emailAddress).matches()) {
     useremail_layout.setError("valid Email address");
}
else{
       useremail_layout.setError("invalid Email address");
}