How to add a 1 pixel gray border around a UISearchBar TextField

Question

I\'m trying to figure out how to add a 1 pixel stroke gray border to my UISearchBar in my app. The Facebook Messenger app accomplishes this quite well. (see pic below).

Answer 1

This work fine:

UITextField *txtSearchField = [yourSearchBar valueForKey:@"_searchField"];
[txtSearchField setBorderStyle:UITextBorderStyleRoundedRect];
txtSearchField.layer.cornerRadius = 4;
txtSearchField.layer.borderWidth = 1.0f;
txtSearchField.layer.borderColor = [[UIColor colorWhatYouWant] CGColor]; 

do not forget #import