How to change the ExpandableListview icon on the left to others (android ExpandableListView)

Question

Now I want to use the ExpandableListView to display my data, and I want to change the icon of the left element or let it disappear. can someone give me an offer.

THX

Answer 1

setGroupIndicator(null) must leave.

Answer 2

In this video you can determine exactly how you can change the icons (in the expandable list).

39 Tutorial for Android Working with ExpandableListView 6

Answer 3

.xml.

<ExpandableListView 
   ... 
   ...
    android:groupIndicator="@null" />

 getExpandableListView().setGroupIndicator(null);