Question

场景是：我需要为一个对象数组发出本地通知，每个对象经过固定的时间间隔（以秒为单位）如果我提供了一个固定的秒数

，这里的代码只能工作1个时间间隔

func DeliverMyMessage(_ dict: EnFact, _ index: Int){


    let content = UNMutableNotificationContent();
    content.body = dict.Content!;
    content.categoryIdentifier = "learn";
    content.userInfo = ["dictid": "Random Fact -\(dict.ID!)- \(dict.Reference!)" ];
    content.sound = UNNotificationSound.default();
    content.badge = 1;

    print(secArray[index]);
    var ui = TimeInterval.init(secArray[index]);

    let trigger = UNTimeIntervalNotificationTrigger(timeInterval: 5, repeats: false)


    let request = UNNotificationRequest(identifier: UUID().uuidString, content: content, trigger: trigger)

    cnter.add(request, withCompletionHandler: { (error) in
        if let error = error {
            // Something went wrong
            print(error);
        }

        print("delivered");



    })


}

注意：UNTimeIntervalNotificationTrigger（timeInterval：5 if i 提供一个修复间隔，让我们说5 - 我解雇的所有通知从数组中，在5秒后触发，

然后，如果我尝试在循环中给出计算的秒数差异，则通知似乎不会触发

func DeliverMyMessage(_ dict: EnFact, _ index: Int){


    let content = UNMutableNotificationContent();
    content.body = dict.Content!;
    content.categoryIdentifier = "learn";
    content.userInfo = ["dictid": "Random Fact -\(dict.ID!)- \(dict.Reference!)" ];
    content.sound = UNNotificationSound.default();
    content.badge = 1;

    print(secArray[index]);
    var ui = TimeInterval.init(secArray[index]);

    let trigger = UNTimeIntervalNotificationTrigger(timeInterval: 5 + ui , repeats: false)


    let request = UNNotificationRequest(identifier: UUID().uuidString, content: content, trigger: trigger)

    cnter.add(request, withCompletionHandler: { (error) in
        if let error = error {
            // Something went wrong
            print(error);
        }

        print("delivered");
        if(index < ( self.dictArray.count - 1) ){
            self.DeliverMyMessage(self.dictArray[index + 1], index + 1);
        }else{
            print("all delivered");
        }


    })


}

它表示所有已提供但不是，我使用iOS 11.3 XCode 9.3 swift 4，我被困在它上面，因为这是我在项目中需要做的最后一部分 - 非常感谢任何帮助

UNTimeIntervalNotificationTrigger

0 个答案: