Question

我如何为每一行添加颜色？我希望所有的线都有不同的颜色。例如，一侧蓝色另一侧红色另一个绿色。

override func viewDidLoad() {
    super.viewDidLoad()

    shape = CAShapeLayer()
    view.layer.addSublayer(shape)
    shape.opacity = 0.5
    shape.lineWidth = 2
    shape.lineJoin = kCALineJoinMiter
    shape.strokeColor = UIColor(hue: 0.786, saturation: 0.79, brightness: 0.53, alpha: 1.0).CGColor
    shape.fillColor = UIColor(hue: 0, saturation: 0, brightness: 0, alpha: 0).CGColor

    path = UIBezierPath()
    path.moveToPoint(CGPointMake(150, 300))
    path.addLineToPoint(CGPointMake(230, 300))
    path.addLineToPoint(CGPointMake(250, 350))
    path.addLineToPoint(CGPointMake(230, 400))
    path.addLineToPoint(CGPointMake(150, 400))
    path.addLineToPoint(CGPointMake(150, 400))
    path.addLineToPoint(CGPointMake(130, 350))
    path.addLineToPoint(CGPointMake(150, 300))
    path.closePath()
    shape.path = path.CGPath
    // Do any additional setup after loading the view, typically from a nib.
}

Answer 1

单个路径（单个形状图层）以单色绘制。您应该为每个所需的颜色创建一个单独的形状图层，并将要绘制的线段以相同的颜色放入每个形状图层的路径中（使用moveToPoint / lineToPoint创建不连续的线条）。

将所有形状图层作为子图层添加到要包含图形的视图中。

如何为每个线段添加颜色？

1 个答案: