Question

我有这个Swift代码，当用户靠近某个点时，它会振动手机，并且我有一个带有很多标记（经度和纬度）的.csv文件。如何从地图中隐藏这些标记，但仍保持振动的功能？

function getData(repolink) {
 readDataFromGit('https://api.github.com/repos/' + repolink + '/git/trees/master?recursive=1', function(text){
        data = JSON.parse(text);
        $.each(data, function(i, v) {
            // Retrieve v.login data!
            data = v.login;
        })
    });
}

function readDataFromGit(link, callback) {
    var request = new XMLHttpRequest();
    request.overrideMimeType("application/json");
    request.open('GET', link, true);
    request.onreadystatechange = function() {
        if (request.readyState === 4 && request.status == "200") {
            callback(request.responseText);
        }
    };
    request.send(null);
}

Answer 1

查看iOS 10中的新用户通知规定。它们可以让您提醒用户您是否处于前台，并且能效更高。如果您没有显示积分，则没有理由让MapKit参与。

要求获得警报的用户权限 - 通常需要查看文档和/或WWDC视频。您可以注册的点数也有限制，这可能是您的问题所在。

作为参考，I＆＃39; m用于此的代码如下：

[In your AppDelegate to get required user authorization]

    let center = UNUserNotificationCenter.current()
    center.requestAuthorization(options: [.alert, .sound, .badge])
    { (granted, error) in

        let regionAction = UNNotificationAction(identifier: "regionAlert", title: "regionAlert", options: [])
        let regionCategory = UNNotificationCategory(identifier: "notify-region", actions: [regionAction], intentIdentifiers: [], options: [])
        UNUserNotificationCenter.current().setNotificationCategories([regionCategory])
    }         

[In the class where you want to use the alerts]

   private func setAlert(_ alertPosition: Position, alertTitle: String, alertSubtitle: String, alertBody: String)
   {
        unowned let myself = self
        let alertCenter = CLLocationCoordinate2DMake(alertPosition.coordinate.latitude, alertPosition.coordinate.longitude)
        let alertRegion = CLCircularRegion.init(center: alertCenter, radius: Setting.shared.alertRegionRadius, identifier: alertTitle)
        alertRegion.notifyOnEntry = true
        alertRegion.notifyOnExit = true

        content.title = "Trail*Head Alert"
        content.subtitle = alertSubtitle
        content.body = alertBody
        content.sound = UNNotificationSound.default()
        content.categoryIdentifier = "notify-region"

        if content.badge != nil {
            content.badge = NSNumber(value: Int(content.badge!) + 1)
        } else {
            content.badge = 1
        }

        let trigger = UNLocationNotificationTrigger.init(region: alertRegion, repeats: false)
        let request = UNNotificationRequest(identifier: alertTitle, content: content, trigger: trigger)
        center.add(request) { error in
            if (error != nil){
                print("Add Notification error: ", error!)
            }
        }

        UNUserNotificationCenter.current().delegate = myself
    }

    // UNUserNotificationCenterDelegate function called if app is in foreground when an alert is triggered

    func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) { completionHandler( [.alert,.sound]) }

    // Function to deregister any active alert regions.

    func stopAlerts()
    {
        if alertStatus {
            alertStatus = false
            center.removeAllPendingNotificationRequests()
        }
    }

Answer 2

func setupData() {
pointsDataSource = PointsDataSource(with: "San Francisco")

//if let pointsDataSource = pointsDataSource {
//map.addAnnotations(pointsDataSource.annotations)
//}
}

隐藏地图注释，但将其用于通知

2 个答案: