Accessing Front Camera in Swift 2.1/iOS 9.1 - swift

Question

I am trying to make a selfie app. I am unable to access the front camera. When I run the below code, the app still picks only the back camera.I am working on Xcode 7.1.1. I have also tried it on Xcode 7.2 Beta. Can someone help ? Tried solutions given in the other question here, but that did not solve the problem.
import UIKit
import AVFoundation
class ViewController: UIViewController {
#IBOutlet weak var previewView: UIView!
#IBOutlet weak var capturedImage: UIImageView!
var captureSession: AVCaptureSession?
var stillImageOutput: AVCaptureStillImageOutput?
var previewLayer: AVCaptureVideoPreviewLayer?
enum AVCaptureDevicePosition : Int {
case Unspecified
case Front
case Back
}
func viewDidAppear(animated: Bool){
super.viewDidAppear(animated)
previewLayer!.frame = previewView.bounds
reloadCamera()
}
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
}
func reloadCamera() {
captureSession = AVCaptureSession()
captureSession!.sessionPreset = AVCaptureSessionPresetPhoto
//let backCamera = AVCaptureDevice.defaultDeviceWithMediaType(AVMediaTypeVideo)
// access the front camera
let videoDevices = AVCaptureDevice.devicesWithMediaType(AVMediaTypeVideo)
var captureDevice:AVCaptureDevice
for device in videoDevices{
let device = device as AVCaptureDevice
if device.position == AVCaptureDevicePosition.Front {
captureDevice = device
}
}
var error: NSError?
var input: AVCaptureDeviceInput!
do {
input = try AVCaptureDeviceInput(device : captureDevice)
} catch let error1 as NSError {
error = error1
input = nil
}
if error == nil && captureSession!.canAddInput(input) {
captureSession!.addInput(input)
stillImageOutput = AVCaptureStillImageOutput()
stillImageOutput!.outputSettings = [AVVideoCodecKey :AVVideoCodecJPEG]
if captureSession!.canAddOutput(stillImageOutput){
captureSession!.addOutput(stillImageOutput)
previewLayer = AVCaptureVideoPreviewLayer(session: captureSession)
previewLayer!.videoGravity = AVLayerVideoGravityResizeAspect
previewLayer!.connection?.videoOrientation = AVCaptureVideoOrientation.Portrait
previewView.layer.addSublayer(previewLayer!)
captureSession!.startRunning()
}
}
}
#IBAction func didPressTakePhoto(sender: UIButton) {
if let videoConnection = stillImageOutput!.connectionWithMediaType(AVMediaTypeVideo){
videoConnection.videoOrientation = AVCaptureVideoOrientation.Portrait
stillImageOutput?.captureStillImageAsynchronouslyFromConnection(videoConnection, completionHandler: {(sampleBuffer, error) in
if (sampleBuffer != nil){
let imageData = AVCaptureStillImageOutput.jpegStillImageNSDataRepresentation(sampleBuffer)
let dataProvider = CGDataProviderCreateWithCFData(imageData)
let cgImageRef = CGImageCreateWithJPEGDataProvider(dataProvider,nil,true,CGColorRenderingIntent.RenderingIntentDefault)
let image = UIImage(CGImage: cgImageRef!, scale: 1.0, orientation: UIImageOrientation.Right)
self.capturedImage.image = image
UIImageWriteToSavedPhotosAlbum(image, nil, nil, nil)
}
})
}
}
#IBAction func didPressTakeAnother(sender : AnyObject){
captureSession!.startRunning()
}
}