将裁剪为CGPath的UIImage保存为

let imageToSave = UIImage(named: "image.png")

let path = UIBezierPath()
// 添加你的CGPath到路径中
let shapeLayer = CAShapeLayer()
shapeLayer.path = path.cgPath

UIGraphicsBeginImageContextWithOptions(imageToSave.size, false, 0.0)
let context = UIGraphicsGetCurrentContext()
context?.addPath(path.cgPath)
context?.clip()
imageToSave.draw(in: CGRect(x: 0, y: 0, width: imageToSave.size.width, height: imageToSave.size.height))
let clippedImage = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()

guard let data = clippedImage?.pngData() else {
    // 处理保存失败的情况
    return
}
let url = URL(fileURLWithPath: "path/to/save/image.png")
do {
    try data.write(to: url)
    // 图像保存成功
} catch {
    // 处理保存失败的情况
}