去除导航栏下方的横线
//去除导航栏下方的横线 [self.navigationController.navigationBar setBackgroundImage:[UIImage createImageWithColor:RGBCOLOR(36, 150, 218, 1)] forBarPosition:UIBarPositionAny barMetrics:UIBarMetricsDefault]; [self.navigationController.navigationBar setShadowImage:[UIImage new]];