GetChildAt (I) method of ListView, listviewgetchildat

GetChildAt (I) method of ListView, listviewgetchildat

The getChildAt (I) method of ListView can only obtain the content displayed on the screen. The I parameter is the number of items in the visible range of the List subitem.

If it is out of the display range, a null pointer is returned.

ListView. getLastVisiblePosition () and listView. getFirstVisiblePosition () can be used to return the current list displayed on the screen.

The position of the first and last columns in the entire list.

Use the following statement to return the total number of items displayed on the current screen:

Int count = listView. getLastVisiblePosition ()-listView. getFirstVisiblePosition ();