在iPhone应用程序中将视图另存为照片

import UIKit

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view.
    }

    @IBAction func saveViewAsImage(_ sender: Any) {
        let renderer = UIGraphicsImageRenderer(bounds: view.bounds)
        let image = renderer.image { context in
            view.layer.render(in: context.cgContext)
        }
        
        guard let data = image.jpegData(compressionQuality: 1.0) else { return }
        guard let directory = try? FileManager.default.url(for: .documentDirectory, in: .userDomainMask, appropriateFor: nil, create: false) as NSURL else { return }
        let fileName = "view.jpg"
        let fileURL = directory.appendingPathComponent(fileName)!
        do {
            try data.write(to: fileURL)
            print("Image saved to \(fileURL)")
        } catch {
            print("Error saving image: \(error)")
        }
    }
}