单击按钮每周通知本地通知答案

【问题标题】：Local Notification on weekly basis on button click单击按钮每周通知本地通知
【发布时间】：2016-08-17 19:57:02
【问题描述】：

如何在按钮操作上设置每周通知。

// 每周通知

-(IBAction)buttonAction:(id)sender{
    UILocalNotification* localNotification = [[UILocalNotification alloc] init];
    localNotification.fireDate =  [NSDate dateByAddingTimeInterval:60*60*24*7];
    localNotification.alertBody = @"Hello Message";
    localNotification.alertAction = @"Show me the item";
    [[UIApplication sharedApplication] scheduleLocalNotification:localNotification];
    localNotification.repeatInterval = NSWeekCalendarUnit;
}

每周申请都会通知消息“Hello Message”

【问题讨论】：

标签： ios objective-c notifications uilocalnotification

【解决方案1】：

斯威夫特 2.2：

添加：

localNotification.repeatInterval = .Weekday

斯威夫特 3.0：

    let content: UNMutableNotificationContent = UNMutableNotificationContent()

    content.title = "Title"

    content.subtitle = "Subtitle"

    content.body = "Hello Message"

    let calendar = Calendar.current

    let alarmTime = Date().addingTimeInterval(60*60*24*7)
    let alarmTimeComponents = calendar.dateComponents([.weekday], from: alarmTime)

    let trigger = UNCalendarNotificationTrigger(dateMatching: alarmTimeComponents, repeats: true)

    let request = UNNotificationRequest(identifier: workoutAlarmIdentifier,
                                        content: content,
                                        trigger: trigger)

    UNUserNotificationCenter.current().add(request)
    {
        (error) in // ...
    }

【讨论】：

【解决方案2】：

现在是 11 月 5 日星期六下午 2:00
我有一个选择器设置为 11 月 5 日星期六下午 2:10
11 月 5 日星期六下午 2:10 将显示本地通知

通知将在 11 月 12 日星期六下午 2:10 继续通知

    let ok = UNNotificationAction(identifier: "OKIdentifier", title: "Open", options: [.foreground])
    let cancel = UNNotificationAction(identifier: "CancelIdentifier", title: "Dismiss", options: [])
    let category = UNNotificationCategory(identifier: "message", actions: [ok, cancel], intentIdentifiers: [], options: [])
    UNUserNotificationCenter.current().setNotificationCategories([category])

    let content = UNMutableNotificationContent()
    content.body = "open the SAMPLE app"
    content.categoryIdentifier = "message"

    let alarmTime = datePicker.date
    let alarmTimeComponent = Calendar.current.dateComponents([.hour, .minute, .weekday], from: alarmTime)
    let trigger = UNCalendarNotificationTrigger(dateMatching: alarmTimeComponent, repeats: true)

    let request = UNNotificationRequest(identifier:"five second", content: content, trigger: trigger)
    UNUserNotificationCenter.current().add(request){(error) in
        if (error != nil){
            //handle here
            print("error : \(error)"  )
        }
    }

【讨论】：