我想让我的导航栏有圆角(左上和右上)
我找到了实现它的代码:
CALayer *capa = [self.navigationController navigationBar].layer;
[capa setShadowColor: [[UIColor blackColor] CGColor]];
[capa setShadowOpacity:0.85f];
[capa setShadowOffset: CGSizeMake(0.0f, 1.5f)];
[capa setShadowRadius:2.0f];
[capa setShouldRasterize:YES];
//Round
CGRect bounds = capa.bounds;
bounds.size.height += 10.0f; //I'm reserving enough room for the shadow
UIBezierPath *maskPath = [UIBezierPath bezierPathWithRoundedRect:bounds
byRoundingCorners:(UIRectCornerTopLeft | UIRectCornerTopRight)
cornerRadii:CGSizeMake(10.0, 10.0)];
CAShapeLayer *maskLayer = [CAShapeLayer layer];
maskLayer.frame = bounds;
maskLayer.path = maskPath.CGPath;
[capa addSublayer:maskLayer];
capa.mask = maskLayer;
但它有一个问题,现在 nab bar 没有角边缘,它在数千个角处都是透明的,我可以看到它后面的视图。
我不希望它是透明的我想在那里放一些黑色。
有人知道该怎么做吗?