TouchInstinct
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CameraManager
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Check if device has camera. Pass the resulting video URL to a bloc.

This commit is contained in:
nelanelanela 2014-10-14 11:53:38 +01:00
parent ee8a1b619f
commit e145af50d6
3 changed files with 56 additions and 57 deletions
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camera.xcodeproj/project.xcworkspace/xcuserdata/nataliaterlecka.xcuserdatad/UserInterfaceState.xcuserstate generated
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95
camera/CameraManager.swift
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@ -170,7 +170,8 @@ class CameraManager: NSObject, AVCaptureFileOutputRecordingDelegate {
var captureSession: AVCaptureSession?
private weak var embedingView: UIView?
private var videoCompletition: ((videoURL: NSURL) -> Void)?
private var sessionQueue: dispatch_queue_t = dispatch_queue_create("CameraSessionQueue", DISPATCH_QUEUE_SERIAL)
private var frontCamera: AVCaptureInput?
@ -301,10 +302,11 @@ class CameraManager: NSObject, AVCaptureFileOutputRecordingDelegate {
/**
Stop recording a video.
*/
func stopRecordingVideo()
func stopRecordingVideo(completition:(videoURL: NSURL) -> Void)
{
if let runningMovieOutput = self.movieOutput {
if runningMovieOutput.recording {
self.videoCompletition = completition
runningMovieOutput.stopRecording()
}
}
@ -325,9 +327,15 @@ class CameraManager: NSObject, AVCaptureFileOutputRecordingDelegate {
} else {
let library = ALAssetsLibrary()
library.writeVideoAtPathToSavedPhotosAlbum(outputFileURL, completionBlock: { (assetURL: NSURL?, error: NSError?) -> Void in
if (error != nil) {
self._show("Unable to save video to the iPhone.", message: error!.localizedDescription)
} else {
if let validCompletition = self.videoCompletition {
if let validAssetURL = assetURL {
validCompletition(videoURL: validAssetURL)
self.videoCompletition = nil
}
}
}
})
}
@ -336,51 +344,55 @@ class CameraManager: NSObject, AVCaptureFileOutputRecordingDelegate {
// PRAGMA MARK - CameraManager()
func orientationChanged()
@objc private func _orientationChanged()
{
switch UIDevice.currentDevice().orientation {
case .LandscapeLeft:
self.previewLayer?.connection.videoOrientation = .LandscapeRight
case .LandscapeRight:
self.previewLayer?.connection.videoOrientation = .LandscapeLeft
default:
self.previewLayer?.connection.videoOrientation = .Portrait
}
dispatch_async(dispatch_get_main_queue(), { () -> Void in
if let validEmbedingView = self.embedingView? {
self.previewLayer?.frame = validEmbedingView.bounds
if let validPreviewLayer = self.previewLayer {
switch UIDevice.currentDevice().orientation {
case .LandscapeLeft:
validPreviewLayer.connection.videoOrientation = .LandscapeRight
case .LandscapeRight:
validPreviewLayer.connection.videoOrientation = .LandscapeLeft
default:
validPreviewLayer.connection.videoOrientation = .Portrait
}
})
dispatch_async(dispatch_get_main_queue(), { () -> Void in
if let validEmbedingView = self.embedingView? {
validPreviewLayer.frame = validEmbedingView.bounds
}
})
}
}
private func _setupCamera(completition: Void -> Void)
{
self._checkIfCameraIsAvailable()
self.captureSession = AVCaptureSession()
self.captureSession?.sessionPreset = AVCaptureSessionPresetPhoto
dispatch_async(sessionQueue, {
if let validCaptureSession = self.captureSession? {
validCaptureSession.beginConfiguration()
self._addVideoInput()
self._setupStillImageOutput()
if let validStillImageOutput = self.stillImageOutput? {
self.captureSession?.addOutput(self.stillImageOutput)
if self._checkIfCameraIsAvailable() {
self.captureSession = AVCaptureSession()
self.captureSession?.sessionPreset = AVCaptureSessionPresetPhoto
dispatch_async(sessionQueue, {
if let validCaptureSession = self.captureSession? {
validCaptureSession.beginConfiguration()
self._addVideoInput()
self._setupStillImageOutput()
if let validStillImageOutput = self.stillImageOutput? {
self.captureSession?.addOutput(self.stillImageOutput)
}
self._setupPreviewLayer()
validCaptureSession.commitConfiguration()
validCaptureSession.startRunning()
self._startFollowingDeviceOrientation()
completition()
self.cameraIsSetup = true
}
self._setupPreviewLayer()
validCaptureSession.commitConfiguration()
validCaptureSession.startRunning()
self._startFollowingDeviceOrientation()
completition()
self.cameraIsSetup = true
}
})
})
} else {
self._show("Camera unavailable", message: "The device does not have a camera")
}
}
private func _startFollowingDeviceOrientation()
{
NSNotificationCenter.defaultCenter().addObserver(self, selector: "orientationChanged", name: UIDeviceOrientationDidChangeNotification, object: nil)
NSNotificationCenter.defaultCenter().addObserver(self, selector: "_orientationChanged", name: UIDeviceOrientationDidChangeNotification, object: nil)
}
private func _stopFollowingDeviceOrientation()
@ -398,13 +410,10 @@ class CameraManager: NSObject, AVCaptureFileOutputRecordingDelegate {
})
}
private func _checkIfCameraIsAvailable()
private func _checkIfCameraIsAvailable() -> Bool
{
AVCaptureDevice.requestAccessForMediaType(AVMediaTypeVideo, completionHandler: { (cameraAvailable) -> Void in
if !cameraAvailable {
self._show("Camera unavailable", message: "The app does not have access to camera")
}
})
let deviceHasCamera = UIImagePickerController.isCameraDeviceAvailable(UIImagePickerControllerCameraDevice.Rear) || UIImagePickerController.isCameraDeviceAvailable(UIImagePickerControllerCameraDevice.Front)
return deviceHasCamera
}
private func _addVideoInput()

18
camera/ViewController.swift
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@ -34,23 +34,13 @@ class ViewController: UIViewController {
if sender.selected {
self.cameraManager.startRecordingVideo()
} else {
self.cameraManager.stopRecordingVideo()
self.cameraManager.stopRecordingVideo({ (videoURL) -> Void in
println("YEEEEEEY ! ! ")
println(videoURL)
})
}
}
// @IBAction func viewTapped(sender: UITapGestureRecognizer)
// {
// if self.cameraView.hidden == true {
// self.cameraView.hidden = false
// self.imageView.hidden = true
// } else {
// self.cameraManager.capturePictureWithCompletition({ (image: UIImage) -> Void in
// self.cameraView.hidden = true
// self.imageView.hidden = false
// self.imageView.image = image
// })
// }
// }
@IBAction func changeCameraDevice(sender: UIButton)
{
self.cameraManager.cameraDevice = self.cameraManager.cameraDevice == CameraDevice.Front ? CameraDevice.Back : CameraDevice.Front