【发布时间】:2017-05-12 15:31:56
【问题描述】:
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,会触发通知:
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!)
}
}
使用以下内容,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,定义如下:
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?
【问题讨论】:
-
我有同样的问题,例如我想在 userInfo 中传递一个 UIImage 并且根本不会触发通知。似乎您只能传递原始类型(Int、String、float 等)。
标签: ios swift notifications userinfo nssecurecoding