Android: Difference between getCount() and getChildCount() in ListView

问题

What is difference between getCount() and getChildCount() in ListView?

回答1:

getCount() returns you a count of items in Adapter (total in list), getChildCount() is a ViewGroup method that returns you number of subviews. ListView actively reuses views so if your list has 1000 items getCount() will return 1000, getChildCount() - around 10 or so...

回答2:

getCount() is the number of items in the adapter while getChildCount() refers to the ViewGroup's method that returns the number of the views that this view contains.

回答3:

In your adapter there is one Method getChildrenCount();that decide how many child you want to create.

  @Override
    public int getChildrenCount(int groupPosition) {
        return 1;
    }

来源：https://stackoverflow.com/questions/10242800/android-difference-between-getcount-and-getchildcount-in-listview