显示、隐藏导航的底部边线

谁借莪１个温暖的怀抱￠ 2023-10-17 08:38 81阅读 0赞

显示导航栏下的分割线

#pragma mark 显示导航栏底部的分隔线
    -(void)showBarBottomLine
    {
        if ([self.navigationBar respondsToSelector:@selector( setBackgroundImage:forBarMetrics:)]){
            NSArray *list=self.navigationBar.subviews;
            for (id obj in list) {
                if ([obj isKindOfClass:[UIImageView class]]) {
                    UIImageView *imageView=(UIImageView *)obj;
                    NSArray *list2=imageView.subviews;
                    for (id obj2 in list2) {
                        if ([obj2 isKindOfClass:[UIImageView class]]) {
                            UIImageView *imageView2=(UIImageView *)obj2;
                            imageView2.hidden=NO;
                        }
                    }
                }
            }
        }
    }

隐藏导航栏底部的分割线

#pragma mark 隐藏导航栏底部的分隔线
    - (void)hideBarBottomLine
    {
        // 不用填充的方式，改用隐藏分隔线所属的控件，便于恢复
        //    [self.navigationBar setBackgroundImage:[[UIImage alloc] init] forBarMetrics:UIBarMetricsDefault];
        //    [self.navigationBar setShadowImage:[[UIImage alloc] init]];
        if ([self.navigationController.navigationBar respondsToSelector:@selector( setBackgroundImage:forBarMetrics:)]){
            NSArray *list = self.navigationController.navigationBar.subviews;
            for (id obj in list) {
                if ([obj isKindOfClass:[UIImageView class]]) {
                    UIImageView *imageView=(UIImageView *)obj;
                    NSArray *list2=imageView.subviews;
                    for (id obj2 in list2) {
                        if ([obj2 isKindOfClass:[UIImageView class]]) {
                            UIImageView *imageView2=(UIImageView *)obj2;
                            imageView2.hidden=YES;
                        }
                    }
                }
            }
        }
    }

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