@@ -0,0 +1,259 @@
+package vn.tale.architecture.utils;%0A%0A/**%0A * Created by Giang Nguyen on 2/21/17.%0A */%0A%0Apublic class EmailValidator %7B%0A%0A  public boolean isValid(CharSequence email) %7B%0A    return email != null && android.util.Patterns.EMAIL_ADDRESS.matcher(email).matches();%0A  %7D%0A%7D%0A

implement EmailValidator