1

Hi!
I am building a custom camera in code but if I try my app on a device I don't see the shooting button (myButton) if I try it on a simulator I do see If I remove the code to setup the camera.
Although I don't see the button if I click on the spot the button was supposed to be I can take the picture.

Here is the code I am using ;

//

// ViewController.swift
// cam
//
// Created by Eduardo Tavares on 3/10/18.
// Copyright © 2018 Eduardo Tavares. All rights reserved.
//

import UIKit
import AVKit
import AVFoundation

class ViewController: UIViewController {

var captureSession : AVCaptureSession?
var videoPreviewLayer : AVCaptureVideoPreviewLayer?
var capturePhotoOutput : AVCapturePhotoOutput?

let myView : UIView = {
    let view = UIView()
    view.backgroundColor = .lightGray
    view.translatesAutoresizingMaskIntoConstraints = false
    
    return  view
}()

let myButton : UIButton = {
    let bt = UIButton()
    bt.layer.cornerRadius = 35
    bt.layer.masksToBounds = true
    bt.backgroundColor = .white
    bt.alpha = 0.5
    bt.setTitle("TAKE", for: .normal)
    bt.translatesAutoresizingMaskIntoConstraints = false
    bt.addTarget(self, action: #selector(handleClick), for: .touchUpInside)
    
    return bt
}()

override func viewDidLoad() {
    super.viewDidLoad()
    
    setupView()
    setupCamera()
}

override func viewWillAppear(_ animated: Bool) {
    super.viewWillAppear(animated)
}

@objc func handleClick() {
    guard let capturePhotoOutput = self.capturePhotoOutput else { return }
    let photoSettings = AVCapturePhotoSettings()
    
    photoSettings.isAutoStillImageStabilizationEnabled = true
    photoSettings.isHighResolutionPhotoEnabled = true
    photoSettings.flashMode = .auto
    
    capturePhotoOutput.capturePhoto(with: photoSettings, delegate: self)
    
}

func setupView() {
    
    view.addSubview(myView)
    myView.addSubview(myButton)
    myView.bringSubview(toFront: myButton)
    
    myView.topAnchor.constraint(equalTo: view.topAnchor).isActive = true
    myView.rightAnchor.constraint(equalTo: view.rightAnchor, constant: 8).isActive = true
    myView.leftAnchor.constraint(equalTo: view.leftAnchor, constant: 8).isActive = true
    myView.bottomAnchor.constraint(equalTo: view.bottomAnchor).isActive = true
    
    myButton.centerXAnchor.constraint(equalTo:myView.centerXAnchor).isActive = true
    myButton.bottomAnchor.constraint(equalTo: myView.bottomAnchor,constant: -15).isActive = true
    myButton.widthAnchor.constraint(equalToConstant: 70).isActive = true
    myButton.heightAnchor.constraint(equalToConstant: 70).isActive = true
    
}

func setupCamera() {
    let captureDevice = AVCaptureDevice.default(for: AVMediaType.video)
    
    do {
        let input = try AVCaptureDeviceInput(device: captureDevice!)
        captureSession = AVCaptureSession()
        captureSession?.addInput(input)
    } catch {
        print(error)
    }
    videoPreviewLayer = AVCaptureVideoPreviewLayer(session: captureSession!)
    videoPreviewLayer?.videoGravity = AVLayerVideoGravity.resizeAspectFill
    videoPreviewLayer?.frame = view.layer.bounds
    view.layer.addSublayer(videoPreviewLayer!)
    captureSession?.startRunning()
    
    capturePhotoOutput = AVCapturePhotoOutput()
    capturePhotoOutput?.isHighResolutionCaptureEnabled = true
    captureSession?.addOutput(capturePhotoOutput!)
}

}

extension ViewController : AVCapturePhotoCaptureDelegate {

func photoOutput(_ captureOutput: AVCapturePhotoOutput,didFinishProcessingPhoto photoSampleBuffer: CMSampleBuffer?,previewPhoto previewPhotoSampleBuffer: CMSampleBuffer?, resolvedSettings: AVCaptureResolvedPhotoSettings,bracketSettings: AVCaptureBracketedStillImageSettings?,error: Error?) {
    guard error == nil,let photoSampleBuffer = photoSampleBuffer else { return }
    guard let imageData = AVCapturePhotoOutput.jpegPhotoDataRepresentation(forJPEGSampleBuffer: photoSampleBuffer, previewPhotoSampleBuffer: previewPhotoSampleBuffer) else { return }
    let captureImage = UIImage.init(data: imageData,scale: 1.0)
    if let image = captureImage {
        UIImageWriteToSavedPhotosAlbum(image, nil, nil, nil)
    }
}

}

What am I doing wrong?

thank you

2

Hello @ecptavares, welcome to the Swift Forums! While your question is an interesting one, unfortunately it isn't a great fit for this site, which is more aimed towards discussion of the Swift language itself rather than Apple's frameworks. I'd suggest reposting this question on StackOverflow or Apple's Developer Forums.