In my scenario, I am trying to create a custom CameraView. Here, Pinch Zoom In and Zoom Out are not working. How do I fix this?
Below is my code:
#IBAction func pinchToZoom(_ sender: UIPinchGestureRecognizer) {
guard let device = captureDevice else { return }
func minMaxZoom(_ factor: CGFloat) -> CGFloat { return min(max(factor, 1.0), device.activeFormat.videoMaxZoomFactor) }
func update(scale factor: CGFloat) {
do {
try device.lockForConfiguration()
defer { device.unlockForConfiguration() }
device.videoZoomFactor = factor
} catch {
debugPrint(error)
}
}
let newScaleFactor = minMaxZoom(pinch.scale * zoomFactor)
switch sender.state {
case .began: fallthrough
case .changed: update(scale: newScaleFactor)
case .ended:
zoomFactor = minMaxZoom(newScaleFactor)
update(scale: zoomFactor)
default: break
}
}
Here, Below Answer Working fine for CamerView ZoomIn and ZoomOut.
#IBAction func pinchToZoom(_ sender: UIPinchGestureRecognizer) {
let captureSession = AVCaptureSession()
captureSession.sessionPreset = AVCaptureSession.Preset.photo
let captureDevice = AVCaptureDevice.default(for: AVMediaType.video)
guard let device = captureDevice else { return }
if sender.state == .changed {
let maxZoomFactor = device.activeFormat.videoMaxZoomFactor
let pinchVelocityDividerFactor: CGFloat = 5.0
do {
try device.lockForConfiguration()
defer { device.unlockForConfiguration() }
let desiredZoomFactor = device.videoZoomFactor + atan2(sender.velocity, pinchVelocityDividerFactor)
device.videoZoomFactor = max(1.0, min(desiredZoomFactor, maxZoomFactor))
} catch {
print(error)
}
}
}
Related
I am trying to show an Open Ad from Google Admob in my SwiftUI app. I am not too familiar with UIKit and stuff...
I am keep getting this error in my console: " Status bar could not be hidden for full screen ad. Ensure that your app is configured to allow full screen ads to control the status bar. For example, consider whether you need to set the childViewControllerForStatusBarHidden property on your ad's rootViewController."
How do I solve this?
// Extending Application to get RootView..
extension UIApplication {
func getRootViewController() -> UIViewController {
guard let scene = self.connectedScenes.first as? UIWindowScene else {
return .init()
}
guard let root = scene.windows.first?.rootViewController else {
return .init()
}
return root
}
}
final class OpenAd: NSObject, GADFullScreenContentDelegate {
var appOpenAd: GADAppOpenAd?
var loadTime = Date()
func currentDeviceOrientation() -> UIInterfaceOrientation {
let currentOrientation = UIDevice.current.orientation
switch currentOrientation {
case .unknown:
return .unknown
case .portrait:
return .portrait
case .portraitUpsideDown:
return .portraitUpsideDown
case .landscapeLeft:
return .landscapeLeft
case .landscapeRight:
return .landscapeRight
case .faceUp:
return .portrait
case .faceDown:
return .portrait
#unknown default:
return .unknown
}
}
func showAdForFirstLaunch() {
let request = GADRequest()
GADAppOpenAd.load(withAdUnitID: "ca-app-pub-3940256099942544/5662855259",
request: request,
orientation: UIInterfaceOrientation.portrait,
completionHandler: { (appOpenAdIn, _) in
self.appOpenAd = appOpenAdIn
self.appOpenAd?.fullScreenContentDelegate = self
self.loadTime = Date()
self.appOpenAd?.present(fromRootViewController: UIApplication.shared.getRootViewController())
})
}
func requestAppOpenAd() {
let request = GADRequest()
GADAppOpenAd.load(withAdUnitID: "ca-app-pub-3940256099942544/5662855259",
request: request,
orientation: UIInterfaceOrientation.portrait,
completionHandler: { (appOpenAdIn, _) in
self.appOpenAd = appOpenAdIn
self.appOpenAd?.fullScreenContentDelegate = self
self.loadTime = Date()
print("[OPEN AD] Ad is ready")
})
}
func tryToPresentAd() {
if let gOpenAd = self.appOpenAd, wasLoadTimeLessThanNHoursAgo(thresholdN: 4) {
gOpenAd.present(fromRootViewController: UIApplication.shared.getRootViewController())
} else {
self.requestAppOpenAd()
}
}
func wasLoadTimeLessThanNHoursAgo(thresholdN: Int) -> Bool {
let now = Date()
let timeIntervalBetweenNowAndLoadTime = now.timeIntervalSince(self.loadTime)
let secondsPerHour = 3600.0
let intervalInHours = timeIntervalBetweenNowAndLoadTime / secondsPerHour
return intervalInHours < Double(thresholdN)
}
func ad(_ ad: GADFullScreenPresentingAd, didFailToPresentFullScreenContentWithError error: Error) {
print("[OPEN AD] Failed: \(error)")
requestAppOpenAd()
}
func adDidDismissFullScreenContent(_ ad: GADFullScreenPresentingAd) {
requestAppOpenAd()
print("[OPEN AD] Ad dismissed")
}
}
I am currently building a camera app and want to make the camera take a square image 375x375 like Instagram and save it like that.
I am able to square off the viewfinder of the camera but it is not taking the picture the right way, also when I save it it saves it in full view. I looked around the other Q&As on there but none of them seem to work with my code.
Can someone please help me figure this out.
import Foundation
import UIKit
import AVFoundation
class CameraViewController: UIViewController{
var captureSession = AVCaptureSession()
var frontCameraDeviceInput: AVCaptureDeviceInput?
var backCameraDeviceInput: AVCaptureDeviceInput?
var currentCamera: AVCaptureDevice?
var photoOutput: AVCapturePhotoOutput?
var cameraPreviewLayer: AVCaptureVideoPreviewLayer?
var image: UIImage?
override func viewDidLoad() {
super.viewDidLoad()
setupCaptureSession()
setupDevice()
setupInputOutput()
setupPreviewLayer()
startRunningCaptureSession()
}
func setupCaptureSession() {
captureSession.sessionPreset = AVCaptureSession.Preset.photo
}
func setupDevice() {
let frontCamera = AVCaptureDevice.default(.builtInWideAngleCamera, for: .video, position: .front)
let backCamera = AVCaptureDevice.default(.builtInWideAngleCamera, for: .video, position: .back)
frontCameraDeviceInput = try? AVCaptureDeviceInput(device: frontCamera!)
backCameraDeviceInput = try? AVCaptureDeviceInput(device: backCamera!)
}
func setupInputOutput() {
captureSession.addInput(backCameraDeviceInput!)
photoOutput = AVCapturePhotoOutput()
photoOutput?.isHighResolutionCaptureEnabled = true
photoOutput?.setPreparedPhotoSettingsArray([AVCapturePhotoSettings(format:[AVVideoCodecKey: AVVideoCodecType.jpeg])], completionHandler: nil)
captureSession.addOutput(photoOutput!)
}
func setupPreviewLayer() {
cameraPreviewLayer = AVCaptureVideoPreviewLayer(session: captureSession)
cameraPreviewLayer?.videoGravity = AVLayerVideoGravity.resizeAspectFill
cameraPreviewLayer?.connection?.videoOrientation = AVCaptureVideoOrientation.portrait
cameraPreviewLayer?.frame = self.view.frame
self.view.layer.insertSublayer(cameraPreviewLayer!, at: 0)
}
func startRunningCaptureSession() {
captureSession.startRunning()
}
#IBAction func camerButton(_ sender: Any) {
let settings = AVCapturePhotoSettings()
photoOutput?.capturePhoto(with: settings, delegate: self)
}
#IBAction func switchCamera(_ sender: Any) {
captureSession.beginConfiguration()
//Change camera device inputs from back to front or opposite
if captureSession.inputs.contains(frontCameraDeviceInput!) == true {
captureSession.removeInput(frontCameraDeviceInput!)
captureSession.addInput(backCameraDeviceInput!)
} else if captureSession.inputs.contains(backCameraDeviceInput!) == true {
captureSession.removeInput(backCameraDeviceInput!)
captureSession.addInput(frontCameraDeviceInput!)
}
//Commit all the configuration changes at once
captureSession.commitConfiguration();
}
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if segue.identifier == "previewCameraPhoto" {
let previewVC = segue.destination as! PreviewViewController
previewVC.image = self.image
}
}
}
extension CameraViewController: AVCapturePhotoCaptureDelegate {
func photoOutput(_ output: AVCapturePhotoOutput, didFinishProcessingPhoto photo: AVCapturePhoto, error: Error?) {
if let imageData = photo.fileDataRepresentation() {
image = UIImage(data: imageData)
performSegue(withIdentifier: "previewCameraPhoto", sender: nil)
}
}
override var prefersStatusBarHidden: Bool
{
return true
}
}
The below lines of code are used to capture Image. I execute them when the capture button is tapped. In your case it is
func camerButton(_ sender: Any)
The definition of methods used is also there below.
DispatchQueue.global(qos: .default).async {
let videoConnection = self.imageOutput.connection(with: AVMediaType.video)
let orientation: UIDeviceOrientation = UIDevice.current.orientation
switch orientation {
case .portrait:
videoConnection?.videoOrientation = .portrait
case .portraitUpsideDown:
videoConnection?.videoOrientation = .portraitUpsideDown
case .landscapeRight:
videoConnection?.videoOrientation = .landscapeLeft
case .landscapeLeft:
videoConnection?.videoOrientation = .landscapeRight
default:
videoConnection?.videoOrientation = .portrait
}
self.imageOutput.captureStillImageAsynchronously(from: videoConnection!) { buffer, _ in
self.session.stopRunning()
guard let b = buffer
else { return }
let data = AVCaptureStillImageOutput.jpegStillImageNSDataRepresentation(b)
if var image = UIImage(data: data!) {
// Crop the image if the output needs to be square.
if self.configuration.onlySquareImagesFromCamera {
image = self.cropImageToSquare(image)
}
// Flip image if taken form the front camera.
if let device = self.device, device.position == .front {
image = self.flipImage(image: image)
}
DispatchQueue.main.async {
self.didCapturePhoto?(image)
}
}
}
}
The two methods used in this function -
func cropImageToSquare(_ image: UIImage) -> UIImage {
let orientation: UIDeviceOrientation = UIDevice.current.orientation
var imageWidth = image.size.width
var imageHeight = image.size.height
switch orientation {
case .landscapeLeft, .landscapeRight:
// Swap width and height if orientation is landscape
imageWidth = image.size.height
imageHeight = image.size.width
default:
break
}
// The center coordinate along Y axis
let rcy = imageHeight * 0.5
let rect = CGRect(x: rcy - imageWidth * 0.5, y: 0, width: imageWidth, height: imageWidth)
let imageRef = image.cgImage?.cropping(to: rect)
return UIImage(cgImage: imageRef!, scale: 1.0, orientation: image.imageOrientation)
}
// Used when image is taken from the front camera.
func flipImage(image: UIImage!) -> UIImage! {
let imageSize: CGSize = image.size
UIGraphicsBeginImageContextWithOptions(imageSize, true, 1.0)
let ctx = UIGraphicsGetCurrentContext()!
ctx.rotate(by: CGFloat(Double.pi/2.0))
ctx.translateBy(x: 0, y: -imageSize.width)
ctx.scaleBy(x: imageSize.height/imageSize.width, y: imageSize.width/imageSize.height)
ctx.draw(image.cgImage!, in: CGRect(x: 0.0,
y: 0.0,
width: imageSize.width,
height: imageSize.height))
let newImage: UIImage = UIGraphicsGetImageFromCurrentImageContext()!
UIGraphicsEndImageContext()
return newImage
}
I should not forget to give credit to the developers of this library - https://github.com/Yummypets/YPImagePicker/blob/2.5.1/Source/Camera/YPCameraVC.swift
Just add this to the image picker and the user will get the option of choosing their preferred crop ratio. the default will be as you wanted..a Square shaped photo
self.ImagePicker.allowsEditing = true
I have a very basic AVFoundation Camera that has a captureButton that will take a photo and send that photo to the secondCameraController for it to be displayed. My problem is that there is a lot of iOS 10 deprecation and I'm not sure how I add in a flash when I press the captureButton. Any help will be highly appreciated. My code is below. Thank you guys.
class CameraController: UIViewController, AVCaptureVideoDataOutputSampleBufferDelegate {
let captureSession = AVCaptureSession()
var previewLayer: CALayer!
var captureDevice: AVCaptureDevice!
var takePhoto: Bool = false
override func viewDidLoad() {
super.viewDidLoad()
view.backgroundColor = .white
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
prepareCamera()
}
override func viewDidAppear(_ animated: Bool) {
super.viewDidAppear(animated)
navigationController?.setNavigationBarHidden(true, animated: true)
}
let cameraView: UIView = {
let view = UIView()
view.backgroundColor = .red
return view
}()
func prepareCamera() {
captureSession.sessionPreset = AVCaptureSessionPresetPhoto
if let availableDevices = AVCaptureDeviceDiscoverySession(deviceTypes: [.builtInWideAngleCamera], mediaType: AVMediaTypeVideo, position: .back).devices {
captureDevice = availableDevices.first
beginSession()
}
}
func beginSession() {
do {
let captureDeviceInput = try AVCaptureDeviceInput(device: captureDevice)
captureSession.addInput(captureDeviceInput)
} catch {
print(error.localizedDescription)
}
if let previewLayer = AVCaptureVideoPreviewLayer(session: captureSession) {
self.previewLayer = previewLayer
self.view.layer.addSublayer(self.previewLayer)
self.previewLayer.frame = CGRect(x: 0, y: 0, width: view.frame.width, height: view.frame.height)
previewLayer.videoGravity = AVLayerVideoGravityResizeAspectFill
self.view.addSubview(captureButton)
let width: CGFloat = 85
captureButton.frame = CGRect(x: (previewLayer.frame.width / 2) - width / 2, y: (previewLayer.frame.height) - width - 25, width: width, height: 85)
captureSession.startRunning()
let dataOutput = AVCaptureVideoDataOutput()
dataOutput.videoSettings = [(kCVPixelBufferPixelFormatTypeKey as NSString): NSNumber(value: kCVPixelFormatType_32BGRA)]
dataOutput.alwaysDiscardsLateVideoFrames = true
if captureSession.canAddOutput(dataOutput) {
captureSession.addOutput(dataOutput)
}
captureSession.commitConfiguration()
let queue = DispatchQueue(label: "com.cheekylabsltd.camera")
dataOutput.setSampleBufferDelegate(self, queue: queue)
}
}
func handleCapture() {
takePhoto = true
}
func captureOutput(_ captureOutput: AVCaptureOutput!, didOutputSampleBuffer sampleBuffer: CMSampleBuffer!, from connection: AVCaptureConnection!) {
if takePhoto {
takePhoto = false
if let image = self.getImageFromSampleBuffer(buffer: sampleBuffer) {
let secondController = SecondCameraController()
secondController.takenPhoto = image
DispatchQueue.main.async {
self.present(secondController, animated: true, completion: {
self.stopCaptureSession()
})
}
}
}
}
func getImageFromSampleBuffer(buffer: CMSampleBuffer) -> UIImage? {
if let pixelBuffer = CMSampleBufferGetImageBuffer(buffer) {
let ciImage = CIImage(cvPixelBuffer: pixelBuffer)
let context = CIContext()
let imageRect = CGRect(x: 0, y: 0, width: CVPixelBufferGetWidth(pixelBuffer), height: CVPixelBufferGetHeight(pixelBuffer))
if let image = context.createCGImage(ciImage, from: imageRect) {
return UIImage(cgImage: image, scale: UIScreen.main.scale, orientation: .right)
}
}
return nil
}
func stopCaptureSession() {
self.captureSession.stopRunning()
if let inputs = captureSession.inputs as? [AVCaptureDeviceInput] {
for input in inputs {
self.captureSession.removeInput(input)
}
}
}
lazy var captureButton: UIButton = {
let button = UIButton(type: .system)
button.backgroundColor = .white
button.layer.cornerRadius = 42.5
button.clipsToBounds = true
button.alpha = 0.40
button.layer.borderWidth = 4
button.layer.borderColor = greenColor.cgColor
button.addTarget(self, action: #selector(handleCapture), for: .touchUpInside)
return button
}()
}
Try this code :
Swift v3.0
private func flashOn(device:AVCaptureDevice)
{
do{
if (device.hasTorch)
{
try device.lockForConfiguration()
device.torchMode = .on
device.flashMode = .on
device.unlockForConfiguration()
}
}catch{
//DISABEL FLASH BUTTON HERE IF ERROR
print("Device tourch Flash Error ");
}
}
//FOR FLASH OFF CODE
private func flashOff(device:AVCaptureDevice)
{
do{
if (device.hasTorch){
try device.lockForConfiguration()
device.torchMode = .off
device.flashMode = .off
device.unlockForConfiguration()
}
}catch{
//DISABEL FLASH BUTTON HERE IF ERROR
print("Device tourch Flash Error ");
}
}
// METHOD
//private let session = AVCaptureSession()
//MARK: FLASH UITLITY METHODS
func toggleFlash() {
var device : AVCaptureDevice!
if #available(iOS 10.0, *) {
let videoDeviceDiscoverySession = AVCaptureDeviceDiscoverySession(deviceTypes: [.builtInWideAngleCamera, .builtInDuoCamera], mediaType: AVMediaTypeVideo, position: .unspecified)!
let devices = videoDeviceDiscoverySession.devices!
device = devices.first!
} else {
// Fallback on earlier versions
device = AVCaptureDevice.defaultDevice(withMediaType: AVMediaTypeVideo)
}
if ((device as AnyObject).hasMediaType(AVMediaTypeVideo))
{
if (device.hasTorch)
{
self.session.beginConfiguration()
//self.objOverlayView.disableCenterCameraBtn();
if device.isTorchActive == false {
self.flashOn(device: device)
} else {
self.flashOff(device: device);
}
//self.objOverlayView.enableCenterCameraBtn();
self.session.commitConfiguration()
}
}
}
Swift 4
So there are two different behaviors to choose from in AVFoundation. One would be a capture device torch switch. Connect the torchSwitch action to some view and be sure to change CameraManager.shared.backDevice to your instance of the front or back device that provides the current input.
#IBAction func torchSwitch(_ sender: Any) {
guard let device = CameraManager.shared.backDevice else { return }
guard device.isTorchAvailable else { return }
do {
try device.lockForConfiguration()
device.torchMode = device.torchMode ? .off : .on
if device.torchMode == .on {
try device.setTorchModeOn(level: 0.7)
}
} catch {
debugPrint(error)
}
}
AVFoundation has deprecated device.flashMode
Now to set flash, declare a variable on camera or vc. The value here will be the default.
var flash: AVCaptureFlashMode = .off
Connect this action to some view
#IBAction func torchSwitch(_ sender: Any) { flash = flash ? .off : .on }
Then when you want to capture an image, use AVCapturePhotoOutput and prepare the photo settings. stillCameraOutput is an instance of AVCapturePhotoOutput.
let settings = AVCapturePhotoSettings()
settings.flashMode = flash
stillCameraOutput.capturePhoto(with: settings, delegate: self)
Swift 4 :
Following code is working fine for me
private enum FlashPhotoMode {
case on
case off
}
#IBOutlet weak var flashPhotoModeButton: UIButton!
#IBAction func toggleFlashPhotoMode(_ flashPhotoModeButton: UIButton ) {
sessionQueue.async {
self.flashPhotoMode = (self.flashPhotoMode == .on) ? .off : .on
let flashPhotoMode = self.flashPhotoMode
DispatchQueue.main.async {
if flashPhotoMode == .on {
self.flashPhotoModeButton.setBackgroundImage(UIImage(named: "flashON"), for: .normal)
print("flashON")
} else {
self.flashPhotoModeButton.setBackgroundImage(UIImage(named: "flashOFF"), for: .normal)
print("flashOFF")
}
}
}
}
#IBAction private func capturePhoto(_ photoButton: UIButton) {
................
.......................
if self.videoDeviceInput.device.isFlashAvailable {
if self.flashPhotoMode == .on {
photoSettings.flashMode = .on
print("FLASH ON ")
} else {
print("FLASH OFF ")
photoSettings.flashMode = .off
}
}
}
Thanks!
everyone i've been tearing out my hair trying to find a solution to an interactive view controller transition where you use the pan gesture in the downward direction to bring a full screen view controller from the top to the bottom. Has anyone run across or created any code like this. Below is my code. I already have the dismiss gesture down but cant figure out how to present the view controller by swiping down on the screen. PLEASE HELP!!!
import UIKit
class ViewController: UIViewController {
let interactor = Interactor()
var interactors:Interactor? = nil
let Mview = ModalViewController()
let mViewT: ModalViewController? = nil
var presentedViewControllers: UIViewController?
override func viewDidLoad() {
Mview.transitioningDelegate = self
Mview.modalPresentationStyle = .FullScreen
}
#IBAction func cameraSlide(sender: UIPanGestureRecognizer) {
let percentThreshold:CGFloat = 0.3
// convert y-position to downward pull progress (percentage)
let translation = sender.translationInView(Mview.view)
let verticalMovement = translation.y / UIScreen.mainScreen().bounds.height
let downwardMovement = fmaxf(Float(verticalMovement), 0.0)
let downwardMovementPercent = fminf(downwardMovement, 1.0)
let progress = CGFloat(downwardMovementPercent)
guard let interactor = interactors else { return }
switch sender.state {
case .Began:
interactor.hasStarted = true
self.presentViewController(Mview, animated: true, completion: nil)
case .Changed:
interactor.shouldFinish = progress > percentThreshold
interactor.updateInteractiveTransition(progress)
case .Cancelled:
interactor.hasStarted = false
interactor.cancelInteractiveTransition()
case .Ended:
interactor.hasStarted = false
if !interactor.shouldFinish {
interactor.cancelInteractiveTransition()
} else {
interactor.finishInteractiveTransition()
} default:
break
}
}
}
extension ViewController: UIViewControllerTransitioningDelegate {
func animationControllerForDismissedController(dismissed: UIViewController) -> UIViewControllerAnimatedTransitioning? {
return DismissAnimator()
}
func interactionControllerForDismissal(animator: UIViewControllerAnimatedTransitioning) -> UIViewControllerInteractiveTransitioning? {
return interactor.hasStarted ? interactor : nil
}
func animationControllerForPresentedController(presented: UIViewController, presentingController presenting: UIViewController, sourceController source: UIViewController) -> UIViewControllerAnimatedTransitioning? {
return PresentAnimator()
}
func interactionControllerForPresentation(animator: UIViewControllerAnimatedTransitioning) -> UIViewControllerInteractiveTransitioning? {
return interactor.hasStarted ? interactor : nil
}
}
class PresentAnimator: NSObject {
}
extension PresentAnimator: UIViewControllerAnimatedTransitioning
{
func transitionDuration(transitionContext: UIViewControllerContextTransitioning?) -> NSTimeInterval {
return 1.0
}
func animateTransition(transitionContext: UIViewControllerContextTransitioning) {
guard
let fromVC2 = transitionContext.viewControllerForKey(UITransitionContextFromViewControllerKey),
let toVC2 = transitionContext.viewControllerForKey(UITransitionContextToViewControllerKey),
let containerView2 = transitionContext.containerView() else {return}
let initialFrame = transitionContext.initialFrameForViewController(fromVC2)
toVC2.view.frame = initialFrame
toVC2.view.frame.origin.y = -initialFrame.height * 2
containerView2.addSubview(fromVC2.view)
containerView2.addSubview(toVC2.view)
let screenbounds = UIScreen.mainScreen().bounds
let Stage = CGPoint(x: 0, y: 0)
let finalFrame = CGRect(origin: Stage, size: screenbounds.size)
UIView.animateWithDuration(transitionDuration(transitionContext), animations: {
toVC2.view.frame = finalFrame
}, completion: { _ in transitionContext.completeTransition(!transitionContext.transitionWasCancelled())
}
)
}
}
class ModalViewController: UIViewController {
let interactors = Interactor()
var interactor:Interactor? = nil
#IBAction func close(sender: UIButton) {
dismissViewControllerAnimated(true, completion: nil)
}
#IBAction func handleGesture(sender: UIPanGestureRecognizer) {
let percentThreshold:CGFloat = 0.3
// convert y-position to downward pull progress (percentage)
let translation = sender.translationInView(self.view)
let verticalMovement = translation.y / -view.bounds.height * 2
let downwardMovement = fmaxf(Float(verticalMovement), 0.0)
let downwardMovementPercent = fminf(downwardMovement, 1.0)
let progress = CGFloat(downwardMovementPercent)
guard let interactor = interactor else { return }
switch sender.state {
case .Began:
interactor.hasStarted = true
dismissViewControllerAnimated(true, completion: nil)
case .Changed:
interactor.shouldFinish = progress > percentThreshold
interactor.updateInteractiveTransition(progress)
case .Cancelled:
interactor.hasStarted = false
interactor.cancelInteractiveTransition()
case .Ended:
interactor.hasStarted = false
if !interactor.shouldFinish {
interactor.cancelInteractiveTransition()
} else {
interactor.finishInteractiveTransition()
} default:
break
}
}
}
import UIKit
class DismissAnimator: NSObject {
}
extension DismissAnimator : UIViewControllerAnimatedTransitioning {
func transitionDuration(transitionContext: UIViewControllerContextTransitioning?) -> NSTimeInterval {
return 1.0
}
func animateTransition(transitionContext: UIViewControllerContextTransitioning) {
guard
let fromVC = transitionContext.viewControllerForKey(UITransitionContextFromViewControllerKey),
let toVC = transitionContext.viewControllerForKey(UITransitionContextToViewControllerKey),
let containerView = transitionContext.containerView()
else {
return
}
containerView.insertSubview(toVC.view, belowSubview: fromVC.view)
let screenBounds = UIScreen.mainScreen().bounds
let topLeftCorner = CGPoint(x: 0, y: -screenBounds.height * 2)
let finalFrame = CGRect(origin: topLeftCorner, size: screenBounds.size)
UIView.animateWithDuration(
transitionDuration(transitionContext),animations: {fromVC.view.frame = finalFrame},
completion: { _ in transitionContext.completeTransition(!transitionContext.transitionWasCancelled())
}
)
}
}
If you want a simple Pan Gesture to switch between UIViewControllers, you can check out this:
http://www.appcoda.com/custom-segue-animations/
If you want it to be interactive, as in you can go back and forth between VCs without having to complete the whole transition, I suggest you check out this:
https://www.youtube.com/watch?v=3jAlg5BnYUU
If you want to go even further and have a custom dismissing animation, then look no further than this:
https://www.raywenderlich.com/110536/custom-uiviewcontroller-transitions
I tried several different methods but they didn't help me. I want to change video orientation in AVFoundation. How can I make it?
override func viewDidLoad() {
super.viewDidLoad()
self.definesPresentationContext = true
// device capture for audio and video
let captureVideo = AVCaptureDevice.defaultDeviceWithMediaType(AVMediaTypeVideo)
let captureAudio = AVCaptureDevice.defaultDeviceWithMediaType(AVMediaTypeAudio)
// input
let audioInput = try! AVCaptureDeviceInput(device: captureAudio)
let videoInput = try! AVCaptureDeviceInput(device: captureVideo)
let capturePreview = AVCaptureVideoPreviewLayer(session: captureSession)
capturePreview.frame = self.view.frame
capturePreview.videoGravity = AVLayerVideoGravityResizeAspect
self.view.layer.addSublayer(capturePreview)
// setting of session
captureSession.beginConfiguration()
if captureSession.canAddInput(audioInput) {
captureSession.addInput(audioInput)
}
if captureSession.canAddInput(videoInput) {
captureSession.addInput(videoInput)
}
// output
movieOutput.movieFragmentInterval = kCMTimeInvalid
if captureSession.canAddOutput(movieOutput) {
captureSession.addOutput(movieOutput)
print("added moview")
}
captureSession.sessionPreset = AVCaptureSessionPresetHigh
captureSession.commitConfiguration()
captureSession.startRunning()
}
#IBAction func startStopSession(sender: UIBarButtonItem) {
if movieOutput.recording {
movieOutput.stopRecording()
} else {
print("start recording")
captureSession.beginConfiguration()
for connection in movieOutput.connections as! [AVCaptureConnection] {
for port in connection.inputPorts as! [AVCaptureInputPort] {
print(port)
if port.mediaType == AVMediaTypeVideo {
print(port)
self.captureConnection = AVCaptureConnection(inputPorts: [port], output: movieOutput)
if self.captureConnection.supportsVideoOrientation {
self.captureConnection.videoOrientation = AVCaptureVideoOrientation.LandscapeRight
print("video orientation right")
}
}
}
}
if self.captureConnection.supportsVideoStabilization {
captureConnection.preferredVideoStabilizationMode = .Cinematic
print("true video stabilization")
}
let digit = returnFileDigit()
let path = fileManager.URLsForDirectory(.DocumentDirectory, inDomains: .UserDomainMask).last!.path!.stringByAppendingString("/movie-\(digit).mp4")
captureSession.commitConfiguration()
let url = NSURL(fileURLWithPath: path)
print(movieOutput.connections)
movieOutput.startRecordingToOutputFileURL(url, recordingDelegate: self)
}
}
I tried it that I can to find outputs but I don't know how change orientation
for output in captureSession.outputs as! [AVCaptureOutput] {
output.connections.first?.mediaType
for var connection in output.connections {
if connection.mediaType == AVMediaTypeVideo {
print(connection.mediaType)
connection.videoOrientation = .LandscapeRight
}
}
}
I change my code and it works for me
#IBAction func startStopSession(sender: UIBarButtonItem) {
if movieOutput.recording {
movieOutput.stopRecording()
} else {
print("start recording")
movieOutput.connectionWithMediaType(AVMediaTypeVideo).videoOrientation = returnedOrientation()
if movieOutput.connectionWithMediaType(AVMediaTypeVideo).supportsVideoStabilization {
movieOutput.connectionWithMediaType(AVMediaTypeVideo).preferredVideoStabilizationMode = .Cinematic
}
let digit = returnFileDigit()
let path = fileManager.URLsForDirectory(.DocumentDirectory, inDomains: .UserDomainMask).last!.path!.stringByAppendingString("/movie-\(digit).mp4")
let url = NSURL(fileURLWithPath: path)
movieOutput.startRecordingToOutputFileURL(url, recordingDelegate: self)
}
}
func returnedOrientation() -> AVCaptureVideoOrientation {
var videoOrientation: AVCaptureVideoOrientation!
let orientation = UIDevice.currentDevice().orientation
switch orientation {
case .Portrait:
videoOrientation = .Portrait
userDefault.setInteger(0, forKey: "CaptureVideoOrientation")
case .PortraitUpsideDown:
videoOrientation = .PortraitUpsideDown
userDefault.setInteger(1, forKey: "CaptureVideoOrientation")
case .LandscapeLeft:
videoOrientation = .LandscapeRight
userDefault.setInteger(2, forKey: "CaptureVideoOrientation")
case .LandscapeRight:
videoOrientation = .LandscapeLeft
userDefault.setInteger(3, forKey: "CaptureVideoOrientation")
case .FaceDown, .FaceUp, .Unknown:
let digit = userDefault.integerForKey("CaptureVideoOrientation")
videoOrientation = AVCaptureVideoOrientation.init(rawValue: digit)
}
return videoOrientation
}