ios - 用户信息中带有自定义对象的 UNMutableNotificationContent

Question

我想在 UNMutableNotificationContent 的用户信息中使用自定义对象，但它不起作用。当我将自定义对象放入 userinfo 时，不会触发通知。

使用此代码，将触发一个通知:

let content = UNMutableNotificationContent()
content.title = "title"
content.body = "body"
content.categoryIdentifier = "alarmNotificationCategory"
content.sound = UNNotificationSound.default()
content.userInfo = ["myKey": "myValue"] as [String : Any]


let request = UNNotificationRequest(identifier: "alarmNotification", content: content, trigger: nil)
UNUserNotificationCenter.current().add(request) { error in
    UNUserNotificationCenter.current().delegate = self
    if error != nil {
        print(error!)
    }
}

对于以下内容，没有错误但不会触发通知:

let content = UNMutableNotificationContent()
content.title = "title"
content.body = "body"
content.categoryIdentifier = "alarmNotificationCategory"
content.sound = UNNotificationSound.default()
content.userInfo = ["myKey": TestClass(progress: 2)] as [String : Any]


let request = UNNotificationRequest(identifier: "alarmNotification", content: content, trigger: nil)
UNUserNotificationCenter.current().add(request) { error in
    UNUserNotificationCenter.current().delegate = self
    if error != nil {
        print(error!)
    }
}

TestClass是自定义类，这里是定义:

class TestClass: NSObject, NSSecureCoding {
    public var progress: Float = 0

    required override public init() {
        super.init()
    }

    public init(progress: Float) {
        self.progress = progress
    }

    public required convenience init?(coder aDecoder: NSCoder) {
        self.init()
        progress = aDecoder.decodeObject(forKey: "progress") as! Float
    }

    public func encode(with aCoder: NSCoder) {
        aCoder.encode(progress, forKey: "progress")
    }

    public static var supportsSecureCoding: Bool {
        get {
            return true
        }
    }

}

有什么想法吗？

Answer 1

你的object应该是Property List

The keys in this dictionary must be property-list types—that is, they must be types that can be serialized into the property-list format. For information about property-list types, see Property List Programming Guide.

您可以将您的对象转换为 NSData(使用 NSArchiver 将其存档)