设置渐变:
static func setGradient(_ view:UIView,_ startColor:String,_ endColor:String){
view.backgroundColor=UIColor.clear
//渐变颜色
let gradientLayer = CAGradientLayer()
gradientLayer.frame = view.bounds
//设置渐变的主颜色(可多个颜色添加)
gradientLayer.startPoint = CGPoint(x:1.0, y:0.5)
gradientLayer.endPoint = CGPoint(x:0.0,y: 0.5)
gradientLayer.colors = [ColorUtil.transferStringToColor(startColor).cgColor, ColorUtil.transferStringToColor(endColor).cgColor]
//将gradientLayer作为子layer添加到主layer上
view.layer.addSublayer(gradientLayer)
}
设置控件只有上面两个角为圆角:
static func setTopCorner(_ view:UIView,_ radius:Int){
let corner = UIRectCorner(rawValue: UIRectCorner.topLeft.rawValue | UIRectCorner.topRight.rawValue)
let maskPath = UIBezierPath(roundedRect: view.bounds, byRoundingCorners: corner, cornerRadii: CGSize(width: radius, height: radius))
let maskLayer = CAShapeLayer()
maskLayer.frame = view.bounds
maskLayer.path = maskPath.cgPath
view.layer.mask = maskLayer
}
布局使用xib编写,也设置好了约束,在当前模拟器上运行OK,换大屏的模拟器比如XS MAX,就显示不正常。我发现只要是用到view.bounds的,都有这个问题,但是不知道该怎么处理,ios新手,望大神指教啊。