I want to change the color of circle of radio button,I could not understand which property to set.The background color I am having is black so it gets invisible.I want to set the color of circle to white.
This site is really good for customizing Android components in general: http://android-holo-colors.com/
Just choose the radio button, make the color white, download, and profit!
If after doing that you cannot see your requested change. Then you have to make sure that What is your Theme that is being applied in
Also see that have you applied any style to
just clear those things and this will work 100% correct.