iOS 17新特性以及适配细节汇总

import UIKit
class ViewController: UIViewController {
 lazy var scrollView: UIScrollView = {
 let scrollView = UIScrollView(frame: CGRect(x: 0,
 y: 0,
 width: UIScreen.main.bounds.width,
 height: UIScreen.main.bounds.width))
 let imageView = UIImageView(image: UIImage(named: "img"))
 scrollView.addSubview(imageView)
 scrollView.contentSize = imageView.bounds.size
 // iOS17新增，默认为true
 scrollView.isScrollEnabled = false
 return scrollView
 }()
 override func viewDidLoad() {
 super.viewDidLoad()
 view.addSubview(scrollView)
 }
}

2、applicationIconBadgeNumber
UIApplication 的applicationIconBadgeNumber属性被废弃，建议使用UNUserNotificationCenter.current().setBadgeCount()方法。

import UIKit
import UserNotifications
class ViewController: UIViewController {
 override func viewDidLoad() {
 super.viewDidLoad()
 }
 override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
 // iOS17之后设置角标，需要先授权
 // UNUserNotificationCenter.current().setBadgeCount(10)
 UNUserNotificationCenter.current().setBadgeCount(10) { error in
 if let error {
 print(error)
 }
 }
 }
}

3、UIDocumentViewController
新增视图控制器，用于显示与管理本地或者云端文档。

import UIKit
class ViewController: UIViewController {
 override func viewDidLoad() {
 super.viewDidLoad()
 }
 override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
 let documentViewController = UIDocumentViewController()
 documentViewController.openDocument { _ in
 print("打开文档")
 }
 present(documentViewController, animated: true)
 }
}

4、UIHoverStyle
UIView 增加了一个hoverStyle属性，可以设置鼠标移动到 UIView 之上的效果。

import UIKit
class ViewController: UIViewController {
 lazy var redView: UIView = {
 let view = UIView(frame: CGRect(x: 200, y: 200, width: 200, height: 200))
 view.backgroundColor = .red
 // iOS17新增UIHoverStyle，可以设置Hover的效果与形状（UIShape）
 let hoverStyle = UIHoverStyle(effect: .lift, shape: .capsule)
 // iOS17新增，鼠标移动到UIView之上的效果
 view.hoverStyle = hoverStyle
 return view
 }()
 override func viewDidLoad() {
 super.viewDidLoad()
 view.addSubview(redView)
 }
}

5、编译报错cfstring constant not pointer aligned

解决办法：Build Settings -> Other Linker Flags 加入-ld64

6、编译报错Sandbox：rsync.sanba deny(1) file-write-create xxx

使用 Xcode15 新建项目后，pod 引入部分第三方会报上面的错误
解决办法：Build Settings 搜索 sandbox，把 Build Options 中的 User Script Sandboxing改为 NO

7、编译报错UIGraphicsBeginImageContextWithOptions崩溃

参考链接：UIGraphicsBeginImageContext Deprecated

YYText使用时会崩溃在UIGraphicsBeginImageContextWithOptions