Tutorial: Share Your Current Location From Your iOS Device in Real-Time With PubNub

1.bash

$ pod init
$ {your favorite editor} Podfile

10.swift

self.locationManager.desiredAccuracy = kCLLocationAccuracyBest
self.locationManager.startUpdatingLocation()

11.swift

func locationManager(manager: CLLocationManager!, didFailWithError error: NSError!) {
        println("didFailWithError: \(error.description)")
        let errorAlert = UIAlertView(title: "Error", message: "Failed to Get Your Location", delegate: nil, cancelButtonTitle: "Ok")
        errorAlert.show()
    }

12.swift

func locationManager(manager: CLLocationManager!, didUpdateLocations locations: [AnyObject]!) {
        let newLocation = locations.last as CLLocation
        println("current position: \(newLocation.coordinate.longitude) , \(newLocation.coordinate.latitude)")
    }

13.swift

let configuration = PNConfiguration(publishKey: "demo", subscribeKey: "demo")
private var channel = PNChannel()

14.swift

self.client.addListener(self)
self.client.subscribeToChannels(["my_channel1","my_channel2"], withPresence: false)

// Handle new message from one of channels on which client has been subscribed.
func client(_ client: PubNub, didReceiveMessage message: PNMessageResult) {         
    // Handle new message stored in message.data.message
    if message.data.channel != message.data.subscription {      
    }
    else {      
    }     
    print("Received message: \(message.data.message) on channel \(message.data.channel) " +
          "at \(message.data.timetoken)")
}
 
// Handle subscription status change.
func client(_ client: PubNub, didReceive status: PNStatus) {         
    if status.operation == .subscribeOperation {         
        if status.category == .PNConnectedCategory || status.category == .PNReconnectedCategory {             
            let subscribeStatus: PNSubscribeStatus = status as! PNSubscribeStatus
            if subscribeStatus.category == .PNConnectedCategory {               
            }
            else {
            }
        }
        else if status.category == .PNUnexpectedDisconnectCategory {         
        }
        else {             
            let errorStatus: PNErrorStatus = status as! PNErrorStatus
            if errorStatus.category == .PNAccessDeniedCategory {               
            }
            else {
            }
        }
    }
    else if status.operation == .unsubscribeOperation {         
        if status.category == .PNDisconnectedCategory {
        }
    }
    else if status.operation == .heartbeatOperation {         
        if !status.isError { /* Heartbeat operation was successful. */ }
        else { /* There was an error with the heartbeat operation, handle here. */ }
    }
}

15.swift

class YourViewController: UIViewController, CLLocationManagerDelegate, PNDelegate {

16.swift

func locationManager(manager: CLLocationManager!, didUpdateLocations locations: [AnyObject]!) {
    let newLocation = locations.last as CLLocation
    println("current position: \(newLocation.coordinate.longitude) , \(newLocation.coordinate.latitude)")
    let message = "{\"lat\":\(newLocation.coordinate.latitude),\"lng\":\(newLocation.coordinate.longitude), \"alt\": \(newLocation.altitude)}"
    PubNub.sendMessage(message, toChannel: self.channel, compressed: true)
}

2.bash

platform :ios, '8.0' # (or '9.0' or '10.0')
target "YourProject" do
pod "PubNub", "~> 4"
end
target "YourProjectTests" do
end

3.bash

$ pod install

4.c

#ifdef __OBJC__
#import <UIKit/UIKit.h>
#import <Foundation/Foundation.h>
#import "PNImports.h"
#import <PubNub/PubNub.h>
#endif

5.swift

import UIKit
import PubNub
import CoreLocation

6.swift

private var locationManager = CLLocationManager()

7.swift

override func viewDidLoad() {
    super.viewDidLoad()
    self.locationManager.delegate = self
    self.locationManager.requestAlwaysAuthorization()

8.swift

class YourViewController: UIViewController, CLLocationManagerDelegate {

9.xml

<key>NSLocationAlwaysUsageDescription</key>
<string>This application needs access to your location information</string>
<key>NSLocationWhenInUseUsageDescription</key>
<string>This application needs access to your location information</string>