Ios 如何在视图上添加虚线边框';s帧不在边界上[Swift]
我试图在视图上添加一个虚线边框,它将始终位于视图的框架上,而不是其边界上 我的代码:Ios 如何在视图上添加虚线边框';s帧不在边界上[Swift],ios,uiview,swift4,uibezierpath,cashapelayer,Ios,Uiview,Swift4,Uibezierpath,Cashapelayer,我试图在视图上添加一个虚线边框,它将始终位于视图的框架上,而不是其边界上 我的代码: func addDashedBorder() { let color = UIColor.red.cgColor shapeLayer = CAShapeLayer() let frameSize = self.bounds.size let shapeRect = CGRect(x:0 , y: 0, width: frameSize.width, height: frame
func addDashedBorder() {
let color = UIColor.red.cgColor
shapeLayer = CAShapeLayer()
let frameSize = self.bounds.size
let shapeRect = CGRect(x:0 , y: 0, width: frameSize.width, height: frameSize.height)
shapeLayer.frame = shapeRect
shapeLayer.position = CGPoint(x: frameSize.width/2, y: frameSize.height/2)
shapeLayer.fillColor = UIColor.clear.cgColor
shapeLayer.strokeColor = color
shapeLayer.lineWidth = 2
shapeLayer.lineJoin = CAShapeLayerLineJoin.round
shapeLayer.lineDashPattern = [6,3]
shapeLayer.path = UIBezierPath(roundedRect: self.frame, cornerRadius: 5).cgPath
self.layer.addSublayer(shapeLayer)
}
结果如果旋转视图,我不想旋转视图上的边框。 它应该表明它在视图中占据了多少空间 期望值
您需要采取两种视图,即内部视图和外部视图。内部视图(旋转视图)应位于外部视图的子视图中。两个视图的框架必须相同。使用以下代码行-
@IBOutlet weak var viewOuter: UIView! //static outer view
@IBOutlet weak var viewInner: UIView! // View that will be use for rotation
func addDashedBorder() {
let color = UIColor.red.cgColor
let shapeLayer = CAShapeLayer()
let frameSize = viewInner.bounds.size
let shapeRect = CGRect(x:0 , y: 0, width: frameSize.width, height: frameSize.height)
shapeLayer.frame = shapeRect
shapeLayer.position = CGPoint(x: frameSize.width/2, y: frameSize.height/2)
shapeLayer.fillColor = UIColor.clear.cgColor
shapeLayer.strokeColor = color
shapeLayer.lineWidth = 2
shapeLayer.lineJoin = kCALineJoinRound
shapeLayer.lineDashPattern = [6,3]
shapeLayer.path = UIBezierPath(roundedRect: viewInner.frame, cornerRadius: 5).cgPath
self.viewOuter.layer.addSublayer(shapeLayer)
}
外部虚线视图的高度和宽度应与内部对角线视图相同√2*箭头视图的宽度。然后,只需设置箭头视图的动画即可。另外,你的第一张图片在箭头和边框之间会有一个较大的填充。填充是可以的,我的任务是显示,我们看到的是内部视图的框架。视图可以是正方形或长方形。外部视图将始终是一个正方形,其边长和内部视图的最长对角线。这是中间带箭头的图像?是的,这是图像,可以是任何东西。