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GPSController.swift
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GPSController.swift
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//
// GPSController.swift
// nervousnet
//
// Created by spadmin on 09/04/16.
// Copyright © 2016 ethz. All rights reserved.
//
import Foundation
import CoreLocation
import CoreData
import UIKit
private let _GPS = GPSController()
class GPSController : NSObject, SensorProtocol, CLLocationManagerDelegate {
private var auth: Int = 0
private var manager: CLLocationManager
private let VM = VMController.sharedInstance
internal var timestamp: UInt64 = 0
internal var lat: Double = 0.0
internal var long: Double = 0.0
internal var freq: Double = 0.0
private var timerGPS = NSTimer()
override init() {
self.manager = CLLocationManager()
super.init()
self.manager.delegate = self
self.manager.requestWhenInUseAuthorization()
self.manager.requestAlwaysAuthorization()
}
class var sharedInstance: GPSController {
return _GPS
}
func requestAuthorization() {
print("requesting authorization for gps")
let val1 = self.VM.defaults.boolForKey("kill") //objectForKey("kill") as! Bool
let val2 = self.VM.defaults.boolForKey("switchGPS") //objectForKey("switchAcc") as! Bool
if !val1 && val2 {
if CLLocationManager.locationServicesEnabled() {
self.auth = 1
}
}
else {
self.auth = 0
}
}
func initializeUpdate(freq: Double) {
self.freq = freq
self.manager.desiredAccuracy = kCLLocationAccuracyBest
self.manager.startUpdatingLocation()
}
// requestAuthorization must be before this is function is called
func startSensorUpdates() {
if self.auth == 0 {
return
}
self.timerGPS = NSTimer.scheduledTimerWithTimeInterval(self.freq, target: self, selector: #selector(GPSController.newLocation), userInfo: nil, repeats: true)
}
func newLocation() {
self.manager.startUpdatingLocation()
let authorizationStatus = CLLocationManager.authorizationStatus()
switch authorizationStatus {
case .Authorized:
print("authorized")
if let locationValue = self.manager.location{
if let locValue:CLLocationCoordinate2D = locationValue.coordinate {
self.lat = locValue.latitude
self.long = locValue.longitude
self.manager.stopUpdatingLocation()
} else {
}
} else {
}
case .AuthorizedWhenInUse:
print("authorized when in use")
if let locationValue = self.manager.location{
if let locValue:CLLocationCoordinate2D = locationValue.coordinate {
self.lat = locValue.latitude
self.long = locValue.longitude
self.manager.stopUpdatingLocation()
} else{
}
} else {
}
case .Denied:
print("denied")
case .NotDetermined:
print("not determined")
case .Restricted:
print("restricted")
}
let currentTimeA :NSDate = NSDate()
self.timestamp = UInt64(currentTimeA.timeIntervalSince1970*1000)
}
func stopSensorUpdates() {
self.manager.stopUpdatingLocation()
self.timerGPS.invalidate()
self.auth = 0
}
}