0

根据 Vadian 的回答，如何 NSKeyedUnarchiver.unarchiveObject将已弃用的 NSKeyedUnarchiver.unarchiveObject 转换为在 Swift 5/iOS 12+ 中工作

我设法将存档部分转换为工作，但我仍然无法修复未存档部分，这是我的代码：

override func viewDidDisappear(_ animated: Bool)
{
    super.viewDidDisappear(animated)
    guard let packs = MGLOfflineStorage.shared.packs else { return }
    for pack in packs
    {
        do
        {
            let userInfo = try? NSKeyedUnarchiver.unarchiveObject(ofClasses: [NSObject.self], from: pack.context) as? [String: String]
            print("Suspending download of offline pack: “\(userInfo["name"] ?? "unknown")”")
        }
        catch
        {
            print("viewDidDisappear: KeyedUnarchiver Error")
        }
        pack.suspend()
    }
}

这给了我一个错误：

无法使用类型为“（ofClasses：[NSObject.Type]，来自：Data）”的参数列表调用“unarchiveObject”

这是原始的 iOS 12- 代码：

override func viewDidDisappear(_ animated: Bool) {
super.viewDidDisappear(animated)

// When leaving this view controller, suspend offline downloads.
guard let packs = MGLOfflineStorage.shared.packs else { return }
for pack in packs {
if let userInfo = NSKeyedUnarchiver.unarchiveObject(with: pack.context) as? [String: String] {
print("Suspending download of offline pack: “\(userInfo["name"] ?? "unknown")”")
}
pack.suspend()
}
}
4

1 回答 1

0

尝试执行以下操作：

let userInfo = try? NSKeyedUnarchiver.unarchiveObject(ofClasses: [NSObject.self.classForKeyedUnarchiver()], from: pack.context) as? [String: String]

但是，在下面的objective-c中将起作用：

NSSet *allowedClasses = [NSSet setWithObjects:[NSArray class],[NSMutableDictionary class], nil];
NSData *eObject = [[NSUserDefaults standardUserDefaults] objectForKey:@"Key"];
NSArray *dUuidList = [NSKeyedUnarchiver unarchivedObjectOfClasses:allowedClasses fromData:eObject error:&error];
于 2020-07-08T23:01:24.123 回答