在同一类中显示相机的前后视图

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如何解决在同一类中显示相机的前后视图？

开发过程中遇到在同一类中显示相机的前后视图的问题如何解决？下面主要结合日常开发的经验，给出你关于在同一类中显示相机的前后视图的解决方法建议，希望对你解决在同一类中显示相机的前后视图有所启发或帮助；

我想同时在单个视图上显示前置和后置摄像头视图（同一个 UIVIEw 视图控制器中的 2 个独立视图）。现在只显示后视图。我已经尝试了几件事，但我还没有找到解决方案。我尝试创建了 2 个不同的捕获会话，但是没有用，我不知道它是否是 nescary。

import UIKit;import AVFoundation

class VIEwController: UIVIEwController,AVCapturePhotoCaptureDelegate {
    var captureSession: AVCaptureSession!
    var stillimageOutput: AVCapturePhotoOutput!
    var vIDeoPrevIEwLayer: AVCaptureVIDeoPrevIEwLayer!
    
    
    
    
    var frontCameraview = UIVIEw()
    
    
    var backCameraview = UIVIEw()
    
    
    var heightNum = 30
    var brIE = 0.1
    
    overrIDe func vIEwDIDLoad() {
        super.vIEwDIDLoad()
        // Do any additional setup after loading the vIEw.
        
        [frontCameraview,backCameraview].forEach{
            $0.translatesautoresizingMaskIntoConstraints = false
            vIEw.addSubvIEw($0)
            
            
            $0.backgroundcolor = UIcolor(red: 0.1,green: 0.1,blue: CGfloat(brIE),Alpha: 1)
            heightNum += 120
            brIE += 0.1
        }
        
        
        NSLayoutConstraint.activate([
            
            frontCameraview.topAnchor.constraint(equalTo: vIEw.safeAreaLayoutGuIDe.topAnchor),frontCameraview.leadingAnchor.constraint(equalTo: vIEw.leadingAnchor),frontCameraview.heightAnchor.constraint(equalTo: vIEw.heightAnchor,multiplIEr: 1/3),frontCameraview.wIDthAnchor.constraint(equalTo: vIEw.wIDthAnchor,multiplIEr: 1/2),backCameraview.topAnchor.constraint(equalTo: vIEw.safeAreaLayoutGuIDe.topAnchor),backCameraview.leadingAnchor.constraint(equalTo: frontCameraview.trailingAnchor),backCameraview.heightAnchor.constraint(equalTo: vIEw.heightAnchor,backCameraview.wIDthAnchor.constraint(equalTo: vIEw.wIDthAnchor,])
        
        
        
        
    }
    overrIDe func vIEwDIDAppear(_ animated: Bool) {
        super.vIEwDIDAppear(animated)
        // Setup your camera here...
        captureSession = AVCaptureSession()
        captureSession.sessionPreset = .medium
        
        
        
        guard let backCamera = AVCaptureDevice.default( AVCaptureDevice.DeviceType.builtInWIDeAngleCamera,for: AVMediaType.vIDeo,position: .back)
        //.default(for: AVMediaType.vIDeo)
        else {
            print("Unable to access back camera!")
            return
        }
        
        guard let frontCamera = AVCaptureDevice.default( AVCaptureDevice.DeviceType.builtInWIDeAngleCamera,position: .front)
        //.default(for: AVMediaType.vIDeo)
        else {
            print("Unable to access back camera!")
            return
        }
        
        
        do {
            let input = try AVCaptureDeviceinput(device: backCamera)
            let input2 = try AVCaptureDeviceinput(device: frontCamera)
            //Step 9
            
            stillimageOutput = AVCapturePhotoOutput()
            
            if captureSession.canAddinput(input) && captureSession.canAddOutput(stillimageOutput) {
                captureSession.addinput(input)
                captureSession.addOutput(stillimageOutput)
                setuplivePrevIEw()
            }
            if captureSession.canAddinput(input2) && captureSession.canAddOutput(stillimageOutput) {
                captureSession.addinput(input2)
                captureSession.addOutput(stillimageOutput)
                setuplivePrevIEw()
            }
        }
        
        catch let error  {
            print("Error Unable to initialize back camera:  \(error.localizedDescription)")
        }
        
        
        
        
        
    }
    
    func setuplivePrevIEw() {
        
        vIDeoPrevIEwLayer = AVCaptureVIDeoPrevIEwLayer(session: captureSession)
        
        vIDeoPrevIEwLayer.vIDeoGravity = .resizeAspect
        vIDeoPrevIEwLayer.connection?.vIDeoOrIEntation = .portrait
        frontCameraview.layer.addSublayer(vIDeoPrevIEwLayer)
        backCameraview.layer.addSublayer(vIDeoPrevIEwLayer)
        
        //Step12
        
        dispatchQueue.global(qos: .userInitiated).async { //[weak self] in
            self.captureSession.startRunning()
            //Step 13
            dispatchQueue.main.async {
                self.vIDeoPrevIEwLayer.frame = self.frontCameraview.bounds
            }
        }
    }
    
    
    
    
}

解决方法

暂无找到可以解决该程序问题的有效方法，小编努力寻找整理中！

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