设置NavigationBar底部线条颜色
2017-02-27 本文已影响52人
213dfddbef5e
首先创建类扩展UIImage+ColorImage
@implementation UIImage (ColorImage)
+ (UIImage *)imageWithColor:(UIColor *)color{
CGRect rect = CGRectMake(0.0f, 0.0f, 1.0f, 1.0f);
UIGraphicsBeginImageContext(rect.size);
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [color CGColor]);
CGContextFillRect(context, rect);
UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext(); return image;
}@end
然后
UINavigationBar *navigationBar = self.navigationController.navigationBar;
[navigationBar setBackgroundImage:[[UIImage alloc] init] forBarPosition:UIBarPositionAny barMetrics:UIBarMetricsDefault]; // ------此处使底部线条颜色为红色
[navigationBar setShadowImage:[UIImage imageWithColor:[UIColor redColor]]];
