隐藏navigationBar下面的线

隐藏navigationBar下面的线

 UIImageView *imageView = [self findHairlineImageViewUnder:self.navigationController.navigationBar];

    imageView.hidden=NO;

- (UIImageView*)findHairlineImageViewUnder:(UIView*)view {

    if([viewisKindOfClass:UIImageView.class] && view.bounds.size.height<=1.0) {

        return(UIImageView*)view;

    }

    for(UIView*subviewinview.subviews) {

        UIImageView*imageView = [selffindHairlineImageViewUnder:subview];

        if(imageView) {

            returnimageView;

        }

    }

    return nil;

}

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