title: Form validation library for Android?
body: <p>Is there any mature form validation API / library for Android?
  I've found <a href="http://code.google.com/p/android-binding/" rel="noreferrer">http://code.google.com/p/android-binding/</a> but it seems that is under heavy development.</p>
  
  <p><strong>UPDATE:</strong> Just to clarify my question. Currently, I have hardcoded form validation imperatively. And I would like to know, if there is a mature form validation library that allows me to declaratively specify validators (e.g. directly in XML or in code using annotations or by functional fluent way, ...).</p>