Android-widget source analysis of the ListView

ListView Inheritance

Public abstract class Abslistview extends adapterview<listadapter> implements Textwatcher,
Viewtreeobserver.ongloballayoutlistener, Filter.filterlistener,
Viewtreeobserver.ontouchmodechangelistener,
Remoteviewsadapter.remoteadapterconnectioncallback {

It's inherited.

Public abstract class Adapterview<t extends Adapter> extends ViewGroup {

First you need to figure out Adapterview, because it inherits from ViewGroup.

Android-widget source analysis of the ListView