android - ExpandableListView - group indication is stretch to fit the text size

Question

I have group indication with small icon, and i use groupIndicator to call the selector to draw it but I see android by default stretch that icon to fits the text size

how can i prevent that behavior, and display the icon with it's original size ?

Answer 1

Whatever image you are using as your group indicator, make it a 9 patch (xxx.9.png) image and set its stretchable areas to around the border pixels (which probably may be transparent). It will prevent stretching of image from the middle.