PattysCharmDriverApp

PassengersViewController.swift

```

//  PassengersViewController.swift
//  PattysCharmDriverApp
//  Created by Patty Chen on 2018/5/07.
//  Copyright © 2018年 Patty Chen. All rights reserved.

import UIKit
import MapKit


class PassengersViewController: UIViewController, CLLocationManagerDelegate {
    
    
    // May 7, to use @ attributes to connect UI and Code for Outlet.
 
    
    @IBOutlet weak var logOutOLBTN: UIBarButtonItem!
    
    @IBOutlet weak var callDriverOLBTN: UIButton!

    @IBOutlet weak var passengersMapOLVW: MKMapView!
    
    // May 7, to use CLManager Class to show location of Passenger.
    
    var showPassengersLocation = CLLocationManager()
    
    
 
    
    override func viewDidLoad() {
        
        super.viewDidLoad()
        
        showPassengersLocation.delegate = self
        
        showPassengersLocation.desiredAccuracy = kCLLocationAccuracyBest
        
        showPassengersLocation.requestWhenInUseAuthorization() // to add location when in Use in App's info
        
        showPassengersLocation.startUpdatingLocation()
        
        
    }
    
    
    // May 7, to use the Method called "didUpdateLocations" to update Passengers Location by passing value to Delegate .
    
    // to call out method by typing Func with keyword "didUpdateLocations" and to use _ manager as breifing key constant name for class of CLLocationManager.
    
    
    func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
      
        if let coordPassenger = manager.location?.coordinate {
            
            let centerPassenger = CLLocationCoordinate2D(latitude: coordPassenger.latitude, longitude: coordPassenger.longitude)
            
            let regionPassenger = MKCoordinateRegion(center: centerPassenger, span: MKCoordinateSpan(latitudeDelta: 0.01, longitudeDelta: 0.01))
            
            
            // May 7. to do initializer
            passengersMapOLVW.setRegion(regionPassenger, animated: true)  
            // to range the Geo view where Passenger located.
            
            passengersMapOLVW.removeAnnotations(passengersMapOLVW.annotations) 
            //remove previous annotation of Passager.
            
            let annotation = MKPointAnnotation() // to declare remark of where Passenger is.  
            annotation.coordinate = centerPassenger
            annotation.title = " Dear Customer, this is your Location now !"
            
            passengersMapOLVW.addAnnotation(annotation)
            
            
        }
        
    }
    
    
    
    
    // May 7, to use @ attributes to connect UI and Code for Action.
    
    @IBAction func logOutActionBTN(_ sender: UIBarButtonItem) {
    }
    
    
    @IBAction func callDriverActionBTN(_ sender: UIButton) {
    }
    
    

    
    
}


```