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AVCaptureVideoPreviewLayer 방향-가로 방향 필요
내 앱은 가로 모드입니다. 다음과 같이 AVCaptureVideoPreviewLayer를 제공합니다.
self.previewLayer = [[AVCaptureVideoPreviewLayer alloc] initWithSession:session];
[self.previewLayer setBackgroundColor:[[UIColor blackColor] CGColor]];
[self.previewLayer setVideoGravity:AVLayerVideoGravityResizeAspect];
NSLog(@"previewView: %@", self.previewView);
CALayer *rootLayer = [self.previewView layer];
[rootLayer setMasksToBounds:YES];
[self.previewLayer setFrame:[rootLayer bounds]];
NSLog(@"previewlayer: %f, %f, %f, %f", self.previewLayer.frame.origin.x, self.previewLayer.frame.origin.y, self.previewLayer.frame.size.width, self.previewLayer.frame.size.height);
[rootLayer addSublayer:self.previewLayer];
[session startRunning];
self.previewView의 프레임은 (0,0,568,320)입니다. self.previewLayer는 이론적으로 올바른 (0,0,568,320) 프레임을 기록합니다. 그러나 카메라 디스플레이는 가로 화면 중앙에 세로 직사각형으로 나타나고 카메라 미리보기 이미지의 방향이 90도 잘못되었습니다. 내가 도대체 뭘 잘못하고있는 겁니까? 전체 화면, 가로 모드로 표시하려면 카메라 미리보기 레이어가 필요하며 이미지 방향이 올바르게 지정되어야합니다.
기본 카메라 방향은 가로 왼쪽 (왼쪽에 홈 버튼)입니다. 여기서 두 가지 작업을 수행해야합니다.
1- previewLayer 프레임을 다음으로 변경하십시오.
self.previewLayer.frame=self.view.bounds;
화면이 회전 할 때 미리보기 레이어의 프레임이 변경되도록 미리보기 레이어 프레임을 화면의 경계로 설정해야합니다 (루트 뷰의 프레임은 회전에 따라 변경되지 않고 루트 뷰의 경계가 변경되므로 사용할 수 없습니다. 하다). 귀하의 예에서는 previewlayer 프레임을 내가 보지 못하는 previewView 속성으로 설정하고 있습니다.
2- 장치 회전과 함께 미리보기 레이어 연결을 회전해야합니다. viewDidAppear에 다음 코드를 추가합니다.
-(void) viewDidAppear:(BOOL)animated
{
[super viewDidAppear:YES];
//Get Preview Layer connection
AVCaptureConnection *previewLayerConnection=self.previewLayer.connection;
if ([previewLayerConnection isVideoOrientationSupported])
[previewLayerConnection setVideoOrientation:[[UIApplication sharedApplication] statusBarOrientation]];
}
이것이 해결되기를 바랍니다.
전체 공개 : 가로가 오른쪽인지 가로가 왼쪽인지 상관하지 않기 때문에 단순화 된 버전입니다.
SWIFT 3.0 및 XCODE 8.0에 대한 최상의 답변
private func updatePreviewLayer(layer: AVCaptureConnection, orientation: AVCaptureVideoOrientation) {
layer.videoOrientation = orientation
previewLayer.frame = self.view.bounds
}
override func viewDidLayoutSubviews() {
super.viewDidLayoutSubviews()
if let connection = self.previewLayer?.connection {
let currentDevice: UIDevice = UIDevice.current
let orientation: UIDeviceOrientation = currentDevice.orientation
let previewLayerConnection : AVCaptureConnection = connection
if previewLayerConnection.isVideoOrientationSupported {
switch (orientation) {
case .portrait: updatePreviewLayer(layer: previewLayerConnection, orientation: .portrait)
break
case .landscapeRight: updatePreviewLayer(layer: previewLayerConnection, orientation: .landscapeLeft)
break
case .landscapeLeft: updatePreviewLayer(layer: previewLayerConnection, orientation: .landscapeRight)
break
case .portraitUpsideDown: updatePreviewLayer(layer: previewLayerConnection, orientation: .portraitUpsideDown)
break
default: updatePreviewLayer(layer: previewLayerConnection, orientation: .portrait)
break
}
}
}
}
SWIFT 2.2 및 XCODE 7.3에 대한 최상의 답변
private func updatePreviewLayer(layer: AVCaptureConnection, orientation: AVCaptureVideoOrientation) {
layer.videoOrientation = orientation
previewLayer.frame = self.view.bounds
}
override func viewDidLayoutSubviews() {
super.viewDidLayoutSubviews()
if let connection = self.previewLayer?.connection {
let currentDevice: UIDevice = UIDevice.currentDevice()
let orientation: UIDeviceOrientation = currentDevice.orientation
let previewLayerConnection : AVCaptureConnection = connection
if (previewLayerConnection.supportsVideoOrientation) {
switch (orientation) {
case .Portrait: updatePreviewLayer(previewLayerConnection, orientation: .Portrait)
break
case .LandscapeRight: updatePreviewLayer(previewLayerConnection, orientation: .LandscapeLeft)
break
case .LandscapeLeft: updatePreviewLayer(previewLayerConnection, orientation: .LandscapeRight)
break
case .PortraitUpsideDown: updatePreviewLayer(previewLayerConnection, orientation: .PortraitUpsideDown)
break
default: updatePreviewLayer(previewLayerConnection, orientation: .Portrait)
break
}
}
}
}
override func viewWillTransitionToSize(size: CGSize, withTransitionCoordinator coordinator: UIViewControllerTransitionCoordinator) {
super.viewWillTransitionToSize(size, withTransitionCoordinator: coordinator)
if let connection = self.previewLayer?.connection {
var currentDevice: UIDevice = UIDevice.currentDevice()
var orientation: UIDeviceOrientation = currentDevice.orientation
var previewLayerConnection : AVCaptureConnection = connection
if (previewLayerConnection.supportsVideoOrientation) {
switch (orientation) {
case .portrait:
previewLayerConnection.videoOrientation = AVCaptureVideoOrientation.portrait
case .landscapeRight:
previewLayerConnection.videoOrientation = AVCaptureVideoOrientation.landscapeRight
case .landscapeLeft:
previewLayerConnection.videoOrientation = AVCaptureVideoOrientation.landscapeLeft
case .portraitUpsideDown:
previewLayerConnection.videoOrientation = AVCaptureVideoOrientation.portraitUpsideDown
default:
previewLayerConnection.videoOrientation = AVCaptureVideoOrientation.portrait
}
}
}
}
우리는 사용할 수 없습니다
[previewLayerConnection setVideoOrientation:[[UIApplication sharedApplication] statusBarOrientation]];
때문에 UIInterfaceOrientation != AVCaptureVideoOrientation
그러나 우리는 값을 테스트 할 수 있습니다.
-(void)viewDidLayoutSubviews {
[super viewDidLayoutSubviews];
UIInterfaceOrientation orientation = [[UIApplication sharedApplication] statusBarOrientation];
switch (orientation) {
case UIInterfaceOrientationPortrait:
[_videoPreviewLayer.connection setVideoOrientation:AVCaptureVideoOrientationPortrait];
break;
case UIInterfaceOrientationPortraitUpsideDown:
[_videoPreviewLayer.connection setVideoOrientation:AVCaptureVideoOrientationPortraitUpsideDown];
break;
case UIInterfaceOrientationLandscapeLeft:
[_videoPreviewLayer.connection setVideoOrientation:AVCaptureVideoOrientationLandscapeLeft];
break;
case UIInterfaceOrientationLandscapeRight:
[_videoPreviewLayer.connection setVideoOrientation:AVCaptureVideoOrientationLandscapeRight];
break;
}
}
API가 다소 변경된 것 같습니다. videoOrientation이제 미리보기 레이어의 connection속성 에 대한 속성입니다. 또한 스위치를 사용할 필요가 없습니다. Swift 3.0에 대한 답변 :
override func viewDidLayoutSubviews() {
self.configureVideoOrientation()
}
private func configureVideoOrientation() {
if let previewLayer = self.previewLayer,
let connection = previewLayer.connection {
let orientation = UIDevice.current.orientation
if connection.isVideoOrientationSupported,
let videoOrientation = AVCaptureVideoOrientation(rawValue: orientation.rawValue) {
previewLayer.frame = self.view.bounds
connection.videoOrientation = videoOrientation
}
}
}
완전한 기능의 카메라 미리보기에 어려움을 겪고있는 모든 사람을 위해. 다음은 생산 코드입니다. 물론 단점은 방향이 변경 될 때 지연된다는 것입니다. 이 문제를 극복 할 수있는 더 나은 솔루션이 있다면 공유 해주세요.
- (void)viewDidLoad
{
[super viewDidLoad];
[self initCamera];
}
- (void)initCamera
{
AVCaptureDeviceInput *captureInput = [AVCaptureDeviceInput deviceInputWithDevice:[AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo] error:nil];
if (captureInput) {
mSession = [[AVCaptureSession alloc] init];
[mSession addInput:captureInput];
}
}
- (void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation
{
[super didRotateFromInterfaceOrientation:fromInterfaceOrientation];
if ([mSession isRunning]) {
[mSession stopRunning];
[mCameraLayer removeFromSuperlayer];
[self initCamera];
[self startCamera];
}
}
- (void)startCamera
{
[mSession startRunning];
Settings::getInstance()->setClearColor(Color(0, 0, 0, 0));
mCameraLayer = [AVCaptureVideoPreviewLayer layerWithSession: mSession];
[self updateCameraLayer];
[mCameraView.layer addSublayer:mCameraLayer];
}
- (void)stopCamera
{
[mSession stopRunning];
[mCameraLayer removeFromSuperlayer];
Settings::getInstance()->setDefClearColor();
}
- (void)toggleCamera
{
mSession.isRunning ? [self stopCamera] : [self startCamera];
[mGLKView setNeedsDisplay];
}
- (void)updateCameraLayer
{
mCameraLayer.videoGravity = AVLayerVideoGravityResizeAspectFill;
mCameraLayer.frame = mCameraView.bounds;
float x = mCameraView.frame.origin.x;
float y = mCameraView.frame.origin.y;
float w = mCameraView.frame.size.width;
float h = mCameraView.frame.size.height;
CATransform3D transform = CATransform3DIdentity;
if (UIDeviceOrientationLandscapeLeft == [[UIDevice currentDevice] orientation]) {
mCameraLayer.frame = CGRectMake(x, y, h, w);
transform = CATransform3DTranslate(transform, (w - h) / 2, (h - w) / 2, 0);
transform = CATransform3DRotate(transform, -M_PI/2, 0, 0, 1);
} else if (UIDeviceOrientationLandscapeRight == [[UIDevice currentDevice] orientation]) {
mCameraLayer.frame = CGRectMake(x, y, h, w);
transform = CATransform3DTranslate(transform, (w - h) / 2, (h - w) / 2, 0);
transform = CATransform3DRotate(transform, M_PI/2, 0, 0, 1);
} else if (UIDeviceOrientationPortraitUpsideDown == [[UIDevice currentDevice] orientation]) {
mCameraLayer.frame = mCameraView.bounds;
transform = CATransform3DMakeRotation(M_PI, 0, 0, 1);
} else {
mCameraLayer.frame = mCameraView.bounds;
}
mCameraLayer.transform = transform;
}
enter code here
위의 솔루션을 사용하는 사용 중단 및 변환 경고가 있고 videoOrientation 설정이 iOS7에서 작동하지 않는 것 같았 기 때문에 AVCaptureVideoPreviewLayer에 대한 getter에 다음과 같이 방향을 확인합니다.
- (AVCaptureVideoPreviewLayer *) previewLayer
{
if(!_previewLayer)
{
_previewLayer = [[AVCaptureVideoPreviewLayer alloc] initWithSession: self.captureSession];
[_previewLayer setVideoGravity:AVLayerVideoGravityResizeAspectFill];
_previewLayer.frame = self.view.bounds; // Assume you want the preview layer to fill the view.
[_previewLayer setPosition:CGPointMake(0,0)];
if (UIDeviceOrientationLandscapeLeft == [[UIDevice currentDevice] orientation]) {
_previewLayer.transform = CATransform3DMakeRotation(-M_PI/2, 0, 0, 1);
}
else if (UIDeviceOrientationLandscapeRight == [[UIDevice currentDevice] orientation])
{
_previewLayer.transform = CATransform3DMakeRotation(M_PI/2, 0, 0, 1);
}
}
return _previewLayer;
}
Swift 4, Xcode 9에서 작동합니다.
override func viewWillTransition(to size: CGSize,
with coordinator: UIViewControllerTransitionCoordinator)
{
super.viewWillTransition(to: size, with: coordinator)
guard
let conn = self.previewLayer?.connection,
conn.isVideoOrientationSupported
else { return }
let deviceOrientation = UIDevice.current.orientation
switch deviceOrientation {
case .portrait: conn.videoOrientation = .portrait
case .landscapeRight: conn.videoOrientation = .landscapeLeft
case .landscapeLeft: conn.videoOrientation = .landscapeRight
case .portraitUpsideDown: conn.videoOrientation = .portraitUpsideDown
default: conn.videoOrientation = .portrait
}
}
여기서 주목해야 할 한 가지 미묘한 점 UIDeviceOrientation.landscapeRight은 AVCaptureVideoOrientation.landscapeLeft.
다른 가로 사례도 비슷하게 일치하지 않습니다. 이것은 의도적이며 UIKit과 AVFoundation 간의 불행한 불일치를 수용합니다. 이름을 일치시켜 케이스를 일치 시키면 작동하지 않으며 가로 구성에서 동영상이 거꾸로 표시됩니다.
에서 UIDeviceOrientation로의 올바른 매핑 AVCaptureVideoOrientation이 필요합니다.
앱 지원하는 경우 device rotation, resizing preview.frame필요하다, 이것은 func호출해야 viewDidLayoutSubviews()하고 viewWillTransition().
private func configureVideoOrientation() {
if let preview = self.previewLayer,
let connection = preview.connection {
let orientation = UIDevice.current.orientation
if connection.isVideoOrientationSupported {
var videoOrientation: AVCaptureVideoOrientation
switch orientation {
case .portrait:
videoOrientation = .portrait
case .portraitUpsideDown:
videoOrientation = .portraitUpsideDown
case .landscapeLeft:
videoOrientation = .landscapeRight
case .landscapeRight:
videoOrientation = .landscapeLeft
default:
videoOrientation = .portrait
}
preview.frame = self.view.bounds
connection.videoOrientation = videoOrientation
}
}
}
Hey Guys에 대한 모든 답변과 피드백에 감사드립니다. 저는 신속한 앱을 작업하면서 이것을 발견했습니다. 다음 코드를 사용하여 카메라가 장치와 함께 회전하도록 할 수 있습니다.
override func shouldAutorotate() -> Bool {
if your cameraController.previewLayer.connection != nil {
var currentDevice: UIDevice = UIDevice.currentDevice()
var orientation: UIDeviceOrientation = currentDevice.orientation
var previewLayerConnection : AVCaptureConnection = your cameraController.previewLayer.connection
if (previewLayerConnection.supportsVideoOrientation)
{
switch (orientation)
{
case .Portrait:
previewLayerConnection.videoOrientation = AVCaptureVideoOrientation.Portrait
break
case .LandscapeRight:
previewLayerConnection.videoOrientation = AVCaptureVideoOrientation.LandscapeLeft
break
case .LandscapeLeft:
previewLayerConnection.videoOrientation = AVCaptureVideoOrientation.LandscapeRight
break
default:
previewLayerConnection.videoOrientation = AVCaptureVideoOrientation.Portrait
break
}
}
}
return true
}
도움이 되었기를 바랍니다!
먼저 AVCaptureVideoPreviewLayer를 만들고 다음을 수행해야합니다.
- videoGravity를 설정하십시오 (내 경우에는 비디오 출력을 얻기 위해 작은보기를 사용하고 있음).
프레임을 설정하십시오.
[_videoPreviewLayer setVideoGravity:AVLayerVideoGravityResizeAspectFill]; [_videoPreviewLayer setFrame:_viewPreview.layer.bounds];처음에 방향 설정
if (_videoPreviewLayer.connection.supportsVideoOrientation) { _videoPreviewLayer.connection.videoOrientation = [self interfaceOrientationToVideoOrientation:[UIApplication sharedApplication].statusBarOrientation]; }간단한 스위치 케이스를 사용하여 각 케이스의 방향 설정
-(AVCaptureVideoOrientation)interfaceOrientationToVideoOrientation:(UIInterfaceOrientation)orientation { switch (orientation) { case UIInterfaceOrientationPortrait: return AVCaptureVideoOrientationPortrait; case UIInterfaceOrientationPortraitUpsideDown: return AVCaptureVideoOrientationPortraitUpsideDown; case UIInterfaceOrientationLandscapeLeft: return AVCaptureVideoOrientationLandscapeLeft ; case UIInterfaceOrientationLandscapeRight: return AVCaptureVideoOrientationLandscapeRight; default: break; } NSLog(@"Warning - Didn't recognise interface orientation (%d)",orientation); return AVCaptureVideoOrientationPortrait;}
- 기기가 landscapeLeft 및 landscapeRight를 모두 지원하므로 회전시 호출되는 대리자를 사용합니다.
- (void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration{ if (_videoPreviewLayer.connection.supportsVideoOrientation) { _videoPreviewLayer.connection.videoOrientation = [self interfaceOrientationToVideoOrientation:toInterfaceOrientation]; } }
나도 똑같은 얼굴을하고 있었는데 이것은 내 카메라 방향을 수정하는 것이 었습니다
override func shouldAutorotate() -> Bool {
return false
}
override func preferredInterfaceOrientationForPresentation() -> UIInterfaceOrientation {
return UIInterfaceOrientation.LandscapeLeft
}
override func supportedInterfaceOrientations() -> UIInterfaceOrientationMask {
return UIInterfaceOrientationMask.LandscapeLeft
}
카메라를 고치려면
let previewLayer: AVCaptureVideoPreviewLayer = AVCaptureVideoPreviewLayer(session: self.avCaptureSession)
previewLayer.frame = self.view.layer.frame
previewLayer.videoGravity = AVLayerVideoGravityResizeAspectFill
Maselko의 답변 은 상태 표시 줄 방향이 뒤집 히면 카메라 출력이 거꾸로 표시된다는 점을 제외하면 거의 저에게 효과적이었습니다 . 상태 표시 줄이 뒤집힐 때 Maselko의 논리를 다시 호출하여이 문제를 해결했습니다.
다음은 수정 된 Maselko 솔루션입니다 (ios12 / swift4에서 테스트 됨).
override func viewDidLayoutSubviews() {
super.viewDidLayoutSubviews()
setCameraOrientation()
}
override func viewWillTransition(to size: CGSize, with coordinator: UIViewControllerTransitionCoordinator) {
super.viewWillTransition(to: size, with: coordinator)
setCameraOrientation()
}
@objc func setCameraOrientation() {
if let connection = self.previewLayer?.connection {
let currentDevice: UIDevice = UIDevice.current
let orientation: UIDeviceOrientation = currentDevice.orientation
let previewLayerConnection : AVCaptureConnection = connection
if previewLayerConnection.isVideoOrientationSupported {
let o: AVCaptureVideoOrientation
switch (orientation) {
case .portrait: o = .portrait
case .landscapeRight: o = .landscapeLeft
case .landscapeLeft: o = .landscapeRight
case .portraitUpsideDown: o = .portraitUpsideDown
default: o = .portrait
}
previewLayerConnection.videoOrientation = o
previewLayer!.frame = self.view.bounds
}
}
}
Swift 4.2-Xcode 10.0-iOS 12.0에서 작동하는 선택된 답변 :
var videoPreviewLayer: AVCaptureVideoPreviewLayer?
override func viewDidLayoutSubviews() {
super.viewDidLayoutSubviews()
if let previewLayerConnection = self.videoPreviewLayer?.connection, previewLayerConnection.isVideoOrientationSupported {
updatePreviewLayer(layer: previewLayerConnection, orientation: UIApplication.shared.statusBarOrientation.videoOrientation)
}
}
private func updatePreviewLayer(layer: AVCaptureConnection, orientation: AVCaptureVideoOrientation) {
layer.videoOrientation = orientation
videoPreviewLayer?.frame = self.view.bounds
}
UIInterfaceOrientation에서 AVCaptureVideoOrientation으로의 매핑을 잊지 마십시오.
extension UIInterfaceOrientation {
public var videoOrientation: AVCaptureVideoOrientation {
switch self {
case .portrait:
return AVCaptureVideoOrientation.portrait
case .landscapeRight:
return AVCaptureVideoOrientation.landscapeRight
case .landscapeLeft:
return AVCaptureVideoOrientation.landscapeLeft
case .portraitUpsideDown:
return AVCaptureVideoOrientation.portraitUpsideDown
default:
return AVCaptureVideoOrientation.portrait
}
}
}
Swift 5 버전
override func viewDidLayoutSubviews() {
super.viewDidLayoutSubviews()
updatePreview()
}
func updatePreview() {
let orientation: AVCaptureVideoOrientation
switch UIDevice.current.orientation {
case .portrait:
orientation = .portrait
case .landscapeRight:
orientation = .landscapeLeft
case .landscapeLeft:
orientation = .landscapeRight
case .portraitUpsideDown:
orientation = .portraitUpsideDown
default:
orientation = .portrait
}
if previewLayer?.connection?.isVideoOrientationSupported == true {
previewLayer?.connection?.videoOrientation = orientation
}
previewLayer.frame = view.bounds
}
iOS 8 ~ 11.1에서 문제없이 작동하는 유일한 방법은이 작업을 수행하는 것이며, 제 경우에는 애플리케이션을 가로 모드로만로드했지만 모든 방향에서 작동해야한다는 점을 언급해야합니다. imageview를 통해 수동으로 카메라 또는 원하는 모든 것을 매우 쉽게)
@interface ViewController (){
AVCaptureVideoPreviewLayer * previewLayer;
AVCaptureSession* session;
}
@property (weak, nonatomic) IBOutlet UIView *cameraPreviewView;
-(void)viewDidLoad{
AVCaptureDeviceInput *captureInput = [AVCaptureDeviceInput deviceInputWithDevice:[AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo] error:nil];
if (captureInput) {
session = [[AVCaptureSession alloc] init];
[session addInput:captureInput];
}
previewLayer = [[AVCaptureVideoPreviewLayer alloc] initWithSession:session];
[previewLayer setBackgroundColor:[[UIColor blackColor] CGColor]];
[previewLayer setVideoGravity:AVLayerVideoGravityResizeAspect];
CALayer *rootLayer = [self.cameraPreviewView layer];
[rootLayer setMasksToBounds:YES];
[previewLayer setFrame:[self.view bounds]];
[rootLayer addSublayer:previewLayer];
[session startRunning];
//Orientation Code is in viewDidLayoutSubviews method
}
-(void)viewDidLayoutSubviews {
[super viewDidLayoutSubviews];
UIInterfaceOrientation orientation = [[UIApplication sharedApplication] statusBarOrientation];
switch (orientation) {
case UIInterfaceOrientationPortrait:
[previewLayer.connection setVideoOrientation:AVCaptureVideoOrientationPortrait];
break;
case UIInterfaceOrientationPortraitUpsideDown:
[previewLayer.connection setVideoOrientation:AVCaptureVideoOrientationPortraitUpsideDown];
break;
case UIInterfaceOrientationLandscapeLeft:
[previewLayer.connection setVideoOrientation:AVCaptureVideoOrientationLandscapeLeft];
break;
case UIInterfaceOrientationLandscapeRight:
[previewLayer.connection setVideoOrientation:AVCaptureVideoOrientationLandscapeRight];
break;
default:break;
}
}
@Maselko의 대답은 정확하지만 한 가지 이유는 장치 방향이 장치가 물리적으로 배치되는 방식이기 때문에 UIApplication.shared.statusBarOrientation대신을 사용해야합니다 . 기기가 가로 모드에 있지만 UI가 해당 방향을 지원하지 않을 때 중단됩니다 (예 : 가로 전용 카메라 앱을 만들고 기기가 세로 위치에있을 때보기를 시작하는 경우).UIDevice.current.orientation
private func updatePreviewLayer(layer: AVCaptureConnection, orientation: AVCaptureVideoOrientation) {
layer.videoOrientation = orientation
previewLayer.frame = self.view.bounds
}
override func viewDidLayoutSubviews() {
super.viewDidLayoutSubviews()
if let connection = self.previewLayer?.connection {
let currentDevice: UIDevice = UIDevice.current
let orientation = UIApplication.shared.statusBarOrientation
let previewLayerConnection : AVCaptureConnection = connection
if previewLayerConnection.isVideoOrientationSupported {
switch (orientation) {
case .portrait: updatePreviewLayer(layer: previewLayerConnection, orientation: .portrait)
break
case .landscapeRight: updatePreviewLayer(layer: previewLayerConnection, orientation: .landscapeLeft)
break
case .landscapeLeft: updatePreviewLayer(layer: previewLayerConnection, orientation: .landscapeRight)
break
case .portraitUpsideDown: updatePreviewLayer(layer: previewLayerConnection, orientation: .portraitUpsideDown)
break
default: updatePreviewLayer(layer: previewLayerConnection, orientation: .portrait)
break
}
}
}
}
다음은 Swift 4에서 사용중인 솔루션입니다.
짧고 아름답게 작동합니다.
open override func viewWillTransition(to size: CGSize, with coordinator: UIViewControllerTransitionCoordinator) {
super.viewWillTransition(to: size, with: coordinator)
let videoLayer = self.previewLayer
coordinator.animate(alongsideTransition: { (context: UIViewControllerTransitionCoordinatorContext) in
guard let connection = videoLayer?.connection, connection.isVideoOrientationSupported, let orientation = AVCaptureVideoOrientation(rawValue: UIApplication.shared.statusBarOrientation.rawValue) else {
return
}
connection.videoOrientation = orientation
videoLayer?.frame = self.view.bounds
}) { (context: UIViewControllerTransitionCoordinatorContext) in
// handle any completion logic here...
}
}
Maselko의 답변 개선 버전
Works just great!
override func viewDidLayoutSubviews() {
super.viewDidLayoutSubviews()
if let connection = previewView.connection {
if connection.isVideoOrientationSupported {
let videoOrientation = AVCaptureVideoOrientation.init(rawValue: UIApplication.shared.statusBarOrientation.rawValue)!
connection.videoOrientation = videoOrientation
previewView.frame = self.view.bounds
}
}
}
ReferenceURL : https://stackoverflow.com/questions/15075300/avcapturevideopreviewlayer-orientation-need-landscape
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