Connecting bluetooth between iPad and iPhone - ios

Question

I'm currently trying to make 2 iOS devices connect with each other so I can send gps locations between the two. Right now I'm using corebluetooth to achieve this.
What I did so far is I created 2 separate projects, one being the receiver one being the sender. I followed some instructions from apple itself to broadcast the iPad. However it doesn't seem to be found by the project that is trying to search for Bluetooth devices. I ran both apps on separate physical devices with bluetooth turned on. Below the code that I've used (keep in mind this is some quick code I wrote to try and see if I can actually find the device.) This is also the first time I work with bluetooth so it's a learning curve for sure.
FYI: I'm planning on using the GATT protocol. I'm also wondering if it can be done without a pairing handshake in the way that I get a popup to accept the connection. I would like the receiver to automatically receive and broadcasted signal and start obtaining the data that is being sent without additional steps needed. Or would I need something like Multipeer Connectivity Framework for this?
Receiver
import UIKit
import CoreBluetooth
import CoreLocation
class ViewController: UIViewController {
private let uuidBeacon = "A26962FC-F9DD-4251-B339-A25B3E808213"
var peripheral: CBPeripheralManager!
var peripheralData: NSMutableDictionary!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
peripheral = CBPeripheralManager(delegate: self, queue: nil)
}
override func viewDidAppear(_ animated: Bool) {
guard let region = createBeaconRegion() else { return }
advertiseDevice(region: region)
}
private func createBeaconRegion() -> CLBeaconRegion? {
let proximityUUID = UUID(uuidString: uuidBeacon)
let major : CLBeaconMajorValue = 100
let minor : CLBeaconMinorValue = 1
let beaconID = "com.example.myDeviceRegion"
return CLBeaconRegion(proximityUUID: proximityUUID!,
major: major, minor: minor, identifier: beaconID)
}
func advertiseDevice(region : CLBeaconRegion) {
peripheralData = region.peripheralData(withMeasuredPower: nil)
}
}
extension ViewController: CBPeripheralManagerDelegate {
func peripheralManagerDidUpdateState(_ peripheral: CBPeripheralManager) {
switch peripheral.state {
case .poweredOn:
peripheral.startAdvertising(((peripheralData as NSDictionary) as! [String : Any]))
case .poweredOff:
break
// peripheral.stopAdvertising()
default:
break
}
}
}
Broadcaster
import UIKit
import CoreBluetooth
import CoreLocation
class ViewController: UIViewController {
var centralManager: CBCentralManager!
var sensorTag: CBPeripheral?
var keepScanning: Bool = false
private var timerScanInterval: TimeInterval = 5
override func viewDidLoad() {
super.viewDidLoad()
centralManager = CBCentralManager(delegate: self, queue: nil)
}
}
extension ViewController: CBCentralManagerDelegate {
func centralManagerDidUpdateState(_ central: CBCentralManager) {
switch central.state {
case .poweredOn:
keepScanning = true
_ = Timer(timeInterval: timerScanInterval, target: self, selector: #selector(pauseScan), userInfo: nil, repeats: false)
centralManager.scanForPeripherals(withServices: nil, options: nil)
break
case .poweredOff:
break
case .unsupported:
break
case .unauthorized:
break
case .resetting:
break
case .unknown:
break
}
}
func centralManager(_ central: CBCentralManager, didDiscover peripheral: CBPeripheral, advertisementData: [String : Any], rssi RSSI: NSNumber) {
peripheral.discoverServices(nil)
if let peripheralName = advertisementData[CBAdvertisementDataLocalNameKey] as? String {
print(peripheralName)
}
}
#objc private func pauseScan() {
centralManager.stopScan()
_ = Timer(timeInterval: 2, target: self, selector: #selector(resumeScan), userInfo: nil, repeats: false)
}
#objc private func resumeScan() {
if keepScanning {
centralManager.scanForPeripherals(withServices: nil, options: nil)
_ = Timer(timeInterval: timerScanInterval, target: self, selector: #selector(pauseScan), userInfo: nil, repeats: false)
}
}
}
extension ViewController: CBPeripheralDelegate {
}