ios - 从类型 '(_) throws -> Void' 的抛出函数到非抛出函数类型的无效转换 '([UNNotificationRequest]) -> Void

Question

我正在尝试获取有关本地通知的待处理通知请求。 它抛出我的错误: “从'(_) throws -> Void'类型的抛出函数到非抛出函数类型'([UNNotificationRequest]) -> Void'的无效转换”

我的代码是:

var notificationTitle = "\(String(describing: notificationData!["title"]))"
var notificationInterval: Int = notificationData!["interval"] as! Int
let center  =  UNUserNotificationCenter.current()
center.getPendingNotificationRequests(completionHandler: {(requests) -> Void in
    var notificationExist:Bool = false
    for notificationRequest in requests {
        try{
            var notificationContent:UNNotificationContent = notificationRequest.content
        }
    }

Answer 1

你可能想这样做，

    center.getPendingNotificationRequests(completionHandler: {requests -> () in
        var notificationExist:Bool = false
        for notificationRequest in requests {
            do {
                var notificationContent:UNNotificationContent = try notificationRequest.content
            }
            catch {
                print(error)
            }
        }
    }