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iOS 10自定義相機功能

 更新時間:2019年04月21日 12:03:37   作者:cloudtarget  
這篇文章主要為大家詳細介紹了iOS 10自定義相機功能,具有一定的參考價值,感興趣的小伙伴們可以參考一下

本文實例為大家分享了iOS 10自定義相機功能的具體代碼,供大家參考,具體內(nèi)容如下

直接上代碼

//
// TGCameraVC.swift
// TGPhotoPicker
//
// Created by targetcloud on 2017/7/25.
// Copyright © 2017年 targetcloud. All rights reserved.
//
 
import UIKit
import AVFoundation
import Photos
 
@available(iOS 10.0, *)
class TGCameraVC: UIViewController {
 
 var callbackPicutureData: ((Data?) -> ())?
 
 private var device: AVCaptureDevice?
 private var input: AVCaptureDeviceInput?
 private var imageOutput: AVCapturePhotoOutput?
 private var session: AVCaptureSession?
 private var previewLayer: AVCaptureVideoPreviewLayer?
 fileprivate var showImageContainerView: UIView?
 fileprivate var showImageView: UIImageView?
 fileprivate var picData: Data?
 private var flashMode: AVCaptureFlashMode = .auto
 private weak var flashButton: UIButton?
 
 override func viewDidLoad() {
  super.viewDidLoad()
 
  setupCamera()
  setupUI()
  
  if #available(iOS 9.0, *) {
   let isVCBased = Bundle.main.infoDictionary?["UIViewControllerBasedStatusBarAppearance"] as? Bool ?? false
   if !isVCBased{
    UIApplication.shared.setStatusBarHidden(false, with: .none)
   }
  }else {
   UIApplication.shared.statusBarStyle = .lightContent
   UIApplication.shared.setStatusBarHidden(false, with: .none)
  }
 }
 
 override var prefersStatusBarHidden: Bool{
  return false
 }
 
 override var preferredStatusBarStyle: UIStatusBarStyle {
  return .lightContent
 }
 
 private func setupCamera() {
  AVCaptureDevice.requestAccess(forMediaType: AVMediaTypeVideo) { success in
   if !success {
    let alertVC = UIAlertController(title: TGPhotoPickerConfig.shared.cameraUsage, message: TGPhotoPickerConfig.shared.cameraUsageTip, preferredStyle: .actionSheet)
    alertVC.addAction(UIAlertAction(title: TGPhotoPickerConfig.shared.confirmTitle, style: .default, handler: nil))
    self.present(alertVC, animated: true, completion: nil)
   }
  }
  device = cameraWithPosistion(.back)
  input = try? AVCaptureDeviceInput(device: device)
  guard input != nil else {
   return
  }
  
  imageOutput = AVCapturePhotoOutput()
  session = AVCaptureSession()
  session?.beginConfiguration()
  session?.sessionPreset = TGPhotoPickerConfig.shared.sessionPreset
  if session!.canAddInput(input) {
   session!.addInput(input)
  }
  if session!.canAddOutput(imageOutput) {
   session!.addOutput(imageOutput)
  }
  previewLayer = AVCaptureVideoPreviewLayer(session: session)
  previewLayer?.frame = view.bounds
  previewLayer?.videoGravity = TGPhotoPickerConfig.shared.videoGravity
  view.layer.addSublayer(previewLayer!)
  session?.commitConfiguration()
  session?.startRunning()
 }
 
 private func cameraWithPosistion(_ position: AVCaptureDevicePosition) -> AVCaptureDevice {
  let type = AVCaptureDeviceType(rawValue: TGPhotoPickerConfig.shared.captureDeviceType.rawValue)
  return AVCaptureDevice.defaultDevice(withDeviceType: type, mediaType: AVMediaTypeVideo, position: position)
 }
 
 private func setupUI() {
  let takeButton = UIButton(frame: CGRect(x: 0, y: 0, width: TGPhotoPickerConfig.shared.takeWH, height: TGPhotoPickerConfig.shared.takeWH))
  takeButton.center = CGPoint(x: UIScreen.main.bounds.width / 2, y: UIScreen.main.bounds.height - TGPhotoPickerConfig.shared.buttonEdge.bottom)
  takeButton.setImage(UIImage.size(width: TGPhotoPickerConfig.shared.takeWH, height: TGPhotoPickerConfig.shared.takeWH).border(width: 3).border(color: .white).color(.clear).corner(radius: TGPhotoPickerConfig.shared.takeWH / 2).image +
   UIImage.size(width: TGPhotoPickerConfig.shared.takeWH - 10, height: TGPhotoPickerConfig.shared.takeWH - 10).color(UIColor(white: 0.95, alpha: 1) ).corner(radius: (TGPhotoPickerConfig.shared.takeWH - 10) / 2).image, for: .normal)
  takeButton.setImage(UIImage.size(width: TGPhotoPickerConfig.shared.takeWH, height: TGPhotoPickerConfig.shared.takeWH).border(width: 3).border(color: .white).color(.clear).corner(radius: TGPhotoPickerConfig.shared.takeWH / 2).image +
   UIImage.size(width: TGPhotoPickerConfig.shared.takeWH - 10, height: TGPhotoPickerConfig.shared.takeWH - 10).color(UIColor(white: 0.8, alpha: 1) ).corner(radius: (TGPhotoPickerConfig.shared.takeWH - 10) / 2).image, for: .highlighted)
  takeButton.addTarget(self, action: #selector(takePhotoAction), for: .touchUpInside)
  view.addSubview(takeButton)
  
  let cameraChangeButton = UIButton(frame: CGRect(x: 0, y: 0, width: TGPhotoPickerConfig.shared.takeWH * 0.6, height: TGPhotoPickerConfig.shared.takeWH * 0.6))
  cameraChangeButton.setImage(TGPhotoPickerConfig.getImageNo2x3xSuffix("camera"), for: .normal)
  cameraChangeButton.center = CGPoint(x: UIScreen.main.bounds.width - TGPhotoPickerConfig.shared.buttonEdge.right, y: takeButton.center.y)
  cameraChangeButton.addTarget(self, action: #selector(changeCameraPositionAction), for: .touchUpInside)
  cameraChangeButton.contentMode = .scaleAspectFit
  view.addSubview(cameraChangeButton)
  
  let flashChangeButton = UIButton(frame: CGRect(x: 0, y: 0, width: TGPhotoPickerConfig.shared.takeWH * 0.5, height: TGPhotoPickerConfig.shared.takeWH * 0.5))
  flashChangeButton.center = CGPoint(x: cameraChangeButton.center.x, y: TGPhotoPickerConfig.shared.buttonEdge.top)
  flashChangeButton.setImage(TGPhotoPickerConfig.getImageNo2x3xSuffix("flashauto"), for: .normal)
  flashChangeButton.addTarget(self, action: #selector(flashChangeAction), for: .touchUpInside)
  flashChangeButton.contentMode = .scaleAspectFit
  flashButton = flashChangeButton
  view.addSubview(flashChangeButton)
  
  let backButton = UIButton(frame: CGRect(x: 0, y: 0, width: TGPhotoPickerConfig.shared.takeWH * 0.4, height: TGPhotoPickerConfig.shared.takeWH * 0.4))
  backButton.center = CGPoint(x: TGPhotoPickerConfig.shared.buttonEdge.left , y: flashChangeButton.center.y)
  backButton.setImage(UIImage.size(width: TGPhotoPickerConfig.shared.takeWH * 0.4, height: TGPhotoPickerConfig.shared.takeWH * 0.4)
   .corner(radius: TGPhotoPickerConfig.shared.takeWH * 0.2)
   .color(.clear)
   .border(color: UIColor.white.withAlphaComponent(0.7))
   .border(width: TGPhotoPickerConfig.shared.isShowBorder ? TGPhotoPickerConfig.shared.checkboxLineW : 0)
   .image
   .with({ context in
    context.setLineCap(.round)
    UIColor.white.setStroke()
    context.setLineWidth(TGPhotoPickerConfig.shared.checkboxLineW)
    let WH = TGPhotoPickerConfig.shared.takeWH * 0.4
    context.move(to: CGPoint(x: WH * 0.6, y: WH * 0.2))
    context.addLine(to: CGPoint(x: WH * 0.35, y: WH * 0.5))
    context.move(to: CGPoint(x: WH * 0.35, y: WH * 0.5))
    context.addLine(to: CGPoint(x: WH * 0.6, y: WH * 0.8))
    context.strokePath()
   }), for: .normal)
  backButton.contentMode = .scaleAspectFit
  backButton.addTarget(self, action: #selector(backAction), for: .touchUpInside)
  view.addSubview(backButton)
  
  showImageContainerView = UIView(frame: view.bounds)
  showImageContainerView?.backgroundColor = TGPhotoPickerConfig.shared.previewBGColor
  view.addSubview(showImageContainerView!)
  
  let height = showImageContainerView!.bounds.height - TGPhotoPickerConfig.shared.takeWH - TGPhotoPickerConfig.shared.buttonEdge.bottom - TGPhotoPickerConfig.shared.previewPadding * 2
  showImageView = UIImageView(frame: CGRect(x: TGPhotoPickerConfig.shared.previewPadding, y: TGPhotoPickerConfig.shared.previewPadding * 2, width: showImageContainerView!.bounds.width - 2 * TGPhotoPickerConfig.shared.previewPadding, height: height))
  showImageView?.contentMode = .scaleAspectFit
  showImageContainerView?.addSubview(showImageView!)
  showImageContainerView?.isHidden = true
  
  let giveupButton = createImageOperatorButton(nil, CGPoint(x: TGPhotoPickerConfig.shared.takeWH * 1.5, y: showImageContainerView!.bounds.height - TGPhotoPickerConfig.shared.takeWH * 1.5), TGPhotoPickerConfig.shared.getCheckboxImage(true, true, .circle, TGPhotoPickerConfig.shared.takeWH * 0.7).unselect)
  giveupButton.addTarget(self, action: #selector(giveupImageAction), for: .touchUpInside)
  showImageContainerView?.addSubview(giveupButton)
  
  let ensureButton = createImageOperatorButton(nil, CGPoint(x: showImageContainerView!.bounds.width - TGPhotoPickerConfig.shared.takeWH * 1.5, y: showImageContainerView!.bounds.height - TGPhotoPickerConfig.shared.takeWH * 1.5), TGPhotoPickerConfig.shared.getCheckboxImage(true, false, .circle, TGPhotoPickerConfig.shared.takeWH * 0.7).select)
  ensureButton.addTarget(self, action: #selector(useImageAction), for: .touchUpInside)
  showImageContainerView?.addSubview(ensureButton)
 }
 
 private func createImageOperatorButton(_ title: String?, _ center: CGPoint, _ img: UIImage?) -> UIButton {
  let btn = UIButton(frame: CGRect(x: 0, y: 0, width: TGPhotoPickerConfig.shared.takeWH * 0.7, height: TGPhotoPickerConfig.shared.takeWH * 0.7))
  btn.center = center
  btn.setTitle(title, for: .normal)
  btn.setImage(img, for: .normal)
  btn.contentMode = .scaleAspectFit
  return btn
 }
 
 @objc private func flashChangeAction() {
  switch flashMode {
  case .auto:
   flashMode = .on
   flashButton?.setImage(TGPhotoPickerConfig.getImageNo2x3xSuffix("flash"), for: .normal)
  case .on:
   flashMode = .off
   flashButton?.setImage(TGPhotoPickerConfig.getImageNo2x3xSuffix("flashno"), for: .normal)
  case .off:
   flashMode = .auto
   flashButton?.setImage(TGPhotoPickerConfig.getImageNo2x3xSuffix("flashauto"), for: .normal)
  }
 }
 
 @objc private func backAction() {
  dismiss(animated: true, completion: nil)
 }
 
 @objc private func takePhotoAction() {
  let connection = imageOutput?.connection(withMediaType: AVMediaTypeVideo)
  guard connection != nil else {
   return
  }
  let photoSettings = AVCapturePhotoSettings()
  photoSettings.flashMode = flashMode
  imageOutput?.capturePhoto(with: photoSettings, delegate: self)
 }
 
 @objc private func changeCameraPositionAction() {
  let animation = CATransition()
  animation.duration = 0.5
  animation.timingFunction = CAMediaTimingFunction(name: kCAMediaTimingFunctionEaseInEaseOut)
  animation.type = TGPhotoPickerConfig.shared.transitionType
  
  let newDevice: AVCaptureDevice!
  let newInput: AVCaptureDeviceInput?
  let position = input?.device.position
  if position == .front {
   newDevice = cameraWithPosistion(.back)
   animation.subtype = kCATransitionFromLeft
  } else {
   newDevice = cameraWithPosistion(.front)
   animation.subtype = kCATransitionFromRight
  }
  newInput = try? AVCaptureDeviceInput(device: newDevice)
  guard newInput != nil else{
   return
  }
  
  previewLayer?.add(animation, forKey: nil)
  
  session?.beginConfiguration()
  session?.removeInput(input)
  if session!.canAddInput(newInput) {
   session?.addInput(newInput!)
   input = newInput
  } else {
   session?.addInput(input)
  }
  session?.commitConfiguration()
 }
 
 @objc private func giveupImageAction() {
  showImageView?.image = UIImage()
  showImageContainerView?.isHidden = true
 }
 
 @objc private func useImageAction() {
  callbackPicutureData?(picData)
  dismiss(animated: true, completion: nil)
 }
}
 
@available(iOS 10.0, *)
extension TGCameraVC: AVCapturePhotoCaptureDelegate {
 func capture(_ captureOutput: AVCapturePhotoOutput, didFinishProcessingPhotoSampleBuffer photoSampleBuffer: CMSampleBuffer?, previewPhotoSampleBuffer: CMSampleBuffer?, resolvedSettings: AVCaptureResolvedPhotoSettings, bracketSettings: AVCaptureBracketedStillImageSettings?, error: Error?) {
  if error != nil {
   print("error = \(String(describing: error?.localizedDescription))")
  } else {
   if let imageData = AVCapturePhotoOutput.jpegPhotoDataRepresentation(forJPEGSampleBuffer: photoSampleBuffer!, previewPhotoSampleBuffer: previewPhotoSampleBuffer){
    picData = imageData
    showImageContainerView?.isHidden = false
    showImageView?.image = UIImage(data: imageData)
    if TGPhotoPickerConfig.shared.saveImageToPhotoAlbum{
     self.saveImageToPhotoAlbum(UIImage(data: imageData)!)
    }
   }
  }
 }
 
 fileprivate func saveImageToPhotoAlbum(_ savedImage:UIImage){
  UIImageWriteToSavedPhotosAlbum(savedImage, self, #selector(imageDidFinishSavingWithErrorContextInfo), nil)
 }
 
 @objc fileprivate func imageDidFinishSavingWithErrorContextInfo(image:UIImage,error:NSError?,contextInfo:UnsafeMutableRawPointer?){
  if canUseAlbum(){
   let msg = (error != nil) ? TGPhotoPickerConfig.shared.saveImageFailTip : TGPhotoPickerConfig.shared.saveImageSuccessTip
   let alert = UIAlertView(title: TGPhotoPickerConfig.shared.saveImageTip, message: msg, delegate: self, cancelButtonTitle: TGPhotoPickerConfig.shared.confirmTitle)
   alert.show()
  }
 }
 
 fileprivate func canUseAlbum()-> Bool{
  if PHPhotoLibrary.authorizationStatus() != PHAuthorizationStatus.authorized {
   let alertView = UIAlertView(title: TGPhotoPickerConfig.shared.PhotoLibraryUsage, message: TGPhotoPickerConfig.shared.PhotoLibraryUsageTip, delegate: nil, cancelButtonTitle: TGPhotoPickerConfig.shared.confirmTitle, otherButtonTitles: TGPhotoPickerConfig.shared.cancelTitle)
   alertView.tag = TGPhotoPickerConfig.shared.alertViewTag
   alertView.show()
   return false
  }else{
   return true
  }
 }
}

效果如下

完整使用DEMO見:點擊打開鏈接

以上就是本文的全部內(nèi)容,希望對大家的學(xué)習(xí)有所幫助,也希望大家多多支持腳本之家。

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