'set font:' is deprecated: first deprecated in ios3 (Warning)
written in Viewdidload
[btnCancelSignin setFont:[UIFont fontWithName:Font_Ubuntu_Bold size:15.0f]];
i am using Xcode 4.5.2
Objective C
button.titleLabel.font = [UIFont fontWithName:@"Helvetica-Bold" size:12.0f];
Swift
button.titleLabel.font = UIFont(name: "Helvetica-Bold", size: 12.0)