Ios Can';不要在Swift中使用前置摄像头
我想建造前置摄像头,但无法在Swift中建造前置摄像头,即使我可以建造后置摄像头 当我只把“后”改为“前”时,相机坏了 如何使用前置摄像头Ios Can';不要在Swift中使用前置摄像头,ios,swift,camera,Ios,Swift,Camera,我想建造前置摄像头,但无法在Swift中建造前置摄像头,即使我可以建造后置摄像头 当我只把“后”改为“前”时,相机坏了 如何使用前置摄像头 var captureSesssion: AVCaptureSession! var stillImageOutput: AVCapturePhotoOutput? var previewLayer: AVCaptureVideoPreviewLayer? var captureDevice : AVCaptureDevice! override func
var captureSesssion: AVCaptureSession!
var stillImageOutput: AVCapturePhotoOutput?
var previewLayer: AVCaptureVideoPreviewLayer?
var captureDevice : AVCaptureDevice!
override func viewDidLoad() {
super.viewDidLoad()
captureSesssion = AVCaptureSession()
stillImageOutput = AVCapturePhotoOutput()
captureSesssion.sessionPreset = AVCaptureSessionPreset1920x1080
captureDevice = AVCaptureDevice.defaultDevice(withDeviceType: .builtInWideAngleCamera, mediaType: AVMediaTypeVideo, position: .front)
//When change "front" to "back", camera is built.
do {
let input = try AVCaptureDeviceInput(device: captureDevice)
if (captureSesssion.canAddInput(input)) {
captureSesssion.addInput(input)
if (captureSesssion.canAddOutput(stillImageOutput)) {
captureSesssion.addOutput(stillImageOutput)
captureSesssion.startRunning()
previewLayer = AVCaptureVideoPreviewLayer(session: captureSesssion)
previewLayer?.videoGravity = AVLayerVideoGravityResizeAspect
previewLayer?.connection.videoOrientation = AVCaptureVideoOrientation.portrait
self.view.layer.addSublayer(previewLayer!)
previewLayer?.position = CGPoint(x: self.view.frame.width / 2, y: self.view.frame.height / 2)
previewLayer?.bounds = self.view.frame
}
}
}
catch {
print(error)
}
iPhone7和iPhone7Plus的前置摄像头可以录制1080p,但在旧款机型上只能录制720p。因此,您只需更改会话预设,即:
captureSesssion.sessionPreset = AVCaptureSessionPreset1280x720
Swift 4:
captureSesssion.sessionPreset = AVCaptureSession.Preset.hd1280x720
iPhone7和iPhone7Plus的前置摄像头可以录制1080p,但在旧款机型上只能录制720p。因此,您只需更改会话预设,即:
captureSesssion.sessionPreset = AVCaptureSessionPreset1280x720
Swift 4:
captureSesssion.sessionPreset = AVCaptureSession.Preset.hd1280x720
您的测试设备的自拍摄像头是否在摄像头应用程序上工作?是的,我使用iPhone SE,可以在摄像头应用程序上使用前置摄像头。您的测试设备的自拍摄像头是否在摄像头应用程序上工作?是的,我使用iPhone SE,可以在摄像头应用程序上使用前置摄像头。