How can i change the color of the predefined buttons in apple research kit

Question

I am trying to make a survey using Apple's ResearchKit but I couldn't find how to change the color of the predefined buttons. They are blue but I want to make them of a different color. How to do this?

Answer 1

Using UIView's appearance proxy to set the tint color should work:

[UIView appearance].tintColor = yourColor;

Answer 2

It's very late now but might save somebody's time, worked for me:

taskviewcontrollerobject.view.tintColor = [UIColor redColor]; // color of your choice