android expandablelistview onitemselectedlistener
<p>every time i wanna use a event listener in android , i always meet a problem...</p>

<p>how to write the code? where is a sample code? how do i learn that?</p>

<p>now i want to write a ExpandableListView OnItemSelectedListener , </p>

<p>where can i find a sample?? or how to learn to write every listeners in android??</p>
