Question

我试图只在我的UITableView的顶角添加圆角，但问题是，使用下面的代码，它只是在我的整个UITableView上形成一个黑色层。我该如何解决这个问题？

//Rounded Corners for top corners of UITableView
UIBezierPath *maskPath = [UIBezierPath bezierPathWithRoundedRect:thetableView.bounds 
                                               byRoundingCorners:UIRectCornerTopLeft
                                                     cornerRadii:CGSizeMake(10.0, 10.0)];
UIBezierPath *maskPath2 = [UIBezierPath bezierPathWithRoundedRect:thetableView.bounds 
                                               byRoundingCorners:UIRectCornerTopRight
                                                     cornerRadii:CGSizeMake(10.0, 10.0)];
// Create the shape layer and set its path
CAShapeLayer *maskLayer = [CAShapeLayer layer];
maskLayer.frame = thetableView.bounds;
maskLayer.path = maskPath.CGPath;

CAShapeLayer *maskLayer2 = [CAShapeLayer layer];
maskLayer.frame = thetableView.bounds;
maskLayer.path = maskPath2.CGPath;

// Set the newly created shape layer as the mask for the image view's layer
[thetableView.layer addSublayer:maskLayer];
[thetableView.layer addSublayer:maskLayer2];

Answer 1

以下代码适用于我的导航栏，只需更改第一行并放置你的self.tableView：

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;

Answer 2

我认为为表视图制作背景视图的最佳方法是哪个视图具有圆角顶部。它只是解决问题的解决方案。可能它会对您有所帮助。

将圆角添加到UITableView的顶部？

2 个答案: