TextWatcher Class or interface?
<p>In book and Internet, for example here <a href="http://stackoverflow.com/questions/8115800/android-handling-many-edittext-fields-in-a-listview">Android Handling many EditText fields in a ListView</a>, TextWatcher is class, but on android devoloper it is interface <a href="http://developer.android.com/reference/android/text/TextWatcher.html" rel="nofollow">http://developer.android.com/reference/android/text/TextWatcher.html</a>.
And Eclipse say, that it is interface.
Who is right?)</p>
