if ([[[UIDevice currentDevice]systemVersion]floatValue] >= 7.0) { [[UINavigationBar appearance] setBarTintColor:[UIColor colorWithHexString:@"0b6aff"]]; } else { self.navigationBar.tintColor = [UIColor colorWithHexString:@"0b6aff"]; }
navigationBar 背景色,布布扣,bubuko.com
原文：http://www.cnblogs.com/joesen/p/3630132.html