iOS 10自定义相机功能 - 快网idc优惠网

本文实例为大家分享了iOS 10自定义相机功能的具体代码，供大家参考，具体内容如下

直接上代码

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//

// TGCameraVC.swift

// TGPhotoPicker

//

// Created by targetcloud on 2017/7/25.

//

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