75d24c15
 yangbin
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//
// CameraViewController.swift
// Twear
//
// Created by yangbin on 2021/12/22.
//
import UIKit
import AVFoundation
import Photos
//let rect = CGRect(x: 30, y: 100, width: SCREEN_WIDTH-60, height: SCREEN_HEIGHT-100-100-100)// 底部工具栏 高度100 距离上面 下面都是100
class CameraViewController: UIViewController, BluetoothSyncDelegate {
let WIDTH = UIScreen.main.bounds.width
let HEIGHT = UIScreen.main.bounds.height
// 音视频采集会话
let captureSession = AVCaptureSession()
// 后置摄像头
@IBOutlet weak var backButton: UIButton!
@IBOutlet weak var toggleButton: UIButton!
var backFacingCamera: AVCaptureDevice?
// 前置摄像头
var frontFacingCamera: AVCaptureDevice?
// 当前正在使用的设备
var currentDevice: AVCaptureDevice?
// 静止图像输出端
var stillImageOutput: AVCaptureStillImageOutput?
// 相机预览图层
var cameraPreviewLayer:AVCaptureVideoPreviewLayer?
//照片拍摄后预览视图
var photoImageview:UIImageView!
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
self.navigationController?.setNavigationBarHidden(true, animated: true)
}
override func viewDidLoad() {
super.viewDidLoad()
let authStatus = AVCaptureDevice.authorizationStatus(for: AVMediaType.video)
if authStatus == AVAuthorizationStatus.notDetermined {
AVCaptureDevice.requestAccess(for: AVMediaType.video) { (granted) in
if granted {
self.setupUI()
} else {
self.back(1)
}
}
} else if authStatus == AVAuthorizationStatus.restricted || authStatus == AVAuthorizationStatus.denied {
self.cameraAccessAlert()
} else {
self.setupUI()
}
}
func saveImageToPhotoLibrary() {
// 判断权限
switch PHPhotoLibrary.authorizationStatus() {
case .authorized:
break
// self.saveImage(image: stillImage)
case .notDetermined:
PHPhotoLibrary.requestAuthorization { [weak self] (status) in
if status == .authorized {
// self?.saveImage(image: stillImage)
} else {
// self?.back(1)
print("User denied")
}
}
case .restricted, .denied:
let alert = UIAlertController(title: LocString("提示"), message: LocString("请在“设置-隐私-照片“选项中,允许'HDF wear'访问你的照片"), preferredStyle: .alert)
let confirm = UIAlertAction(title: LocString("确定"), style: .default)
alert.addAction(confirm)
default:
break
}
}
func cameraAccessAlert() {
let alertVC = UIAlertController(title: LocString("提示"), message: LocString("请在“设置-隐私-相机”选项中,允许'HDF wear'访问你的相机"), preferredStyle: .alert)
let confirm = UIAlertAction(title: LocString("确定"), style: .destructive) { [weak self] (action) in
self?.back(1)
}
let cancel = UIAlertAction(title: LocString("取消"), style: .default) { [weak self] (action) in
self?.back(1)
}
alertVC.addAction(cancel)
alertVC.addAction(confirm)
present(alertVC, animated: true, completion: nil)
}
func setupUI() {
createUI()
view.bringSubviewToFront(backButton)
view.bringSubviewToFront(toggleButton)
BluetoothManager.shared.registerSyncDelegate(self)
BluetoothManager.shared.openCamera(true)
}
//MARK: - 获取设备,创建自定义视图
func createUI(){
// 将音视频采集会话的预设设置为高分辨率照片--选择照片分辨率
self.captureSession.sessionPreset = AVCaptureSession.Preset.hd1280x720
// 获取设备
let devices = AVCaptureDevice.devices(for: AVMediaType.video)
for device in devices {
if device.position == AVCaptureDevice.Position.back {
self.backFacingCamera = device
}
else if device.position == AVCaptureDevice.Position.front {
self.frontFacingCamera = device
}
}
//设置当前设备为前置摄像头
self.currentDevice = self.backFacingCamera
do {
// 当前设备输入端
let captureDeviceInput = try AVCaptureDeviceInput(device: currentDevice!)
self.stillImageOutput = AVCaptureStillImageOutput()
// 输出图像格式设置
self.stillImageOutput?.outputSettings = [AVVideoCodecKey: AVVideoCodecJPEG]
self.captureSession.addInput(captureDeviceInput)
self.captureSession.addOutput(self.stillImageOutput!)
}
catch {
// let alert = UIAlertController(title: "提示", message: "请打开相机权限: 设置-隐私-相机", preferredStyle: .alert)
// let confirm = UIAlertAction(title: "确定", style: .default)
// alert.addAction(confirm)
//
return
}
// 创建预览图层
self.cameraPreviewLayer = AVCaptureVideoPreviewLayer(session: captureSession)
self.cameraPreviewLayer?.videoGravity = AVLayerVideoGravity.resizeAspectFill
self.cameraPreviewLayer?.frame = view.layer.bounds
self.view.layer.addSublayer(cameraPreviewLayer!)
// Entry point / (_main) undefined. for architecture arm64
// 启动音视频采集的会话
self.captureSession.startRunning()
}
@objc func pinchCamera(_ recognizer: UIPinchGestureRecognizer) {
// if let zoomFactor = currentDevice?.videoZoomFactor {
//
// if zoomFactor < 5.0 {
// let newZoomFactor = min(zoomFactor + 1.0, 5.0)
do {
try currentDevice?.lockForConfiguration()
currentDevice?.ramp(toVideoZoomFactor: recognizer.scale, withRate: 1.0)
currentDevice?.unlockForConfiguration()
}
catch {
print(error)
}
// }
// }
}
func didReceiveCameraCommand(status: SetCmd) {
switch status {
case .takePicture:
photoAction()
case .exitCamera:
back(1)
default:
break
}
}
//照相按钮
@objc func photoAction(){
// 获得音视频采集设备的连接
let videoConnection = stillImageOutput?.connection(with: AVMediaType.video)
// 输出端以异步方式采集静态图像
stillImageOutput?.captureStillImageAsynchronously(from: videoConnection!, completionHandler: { (imageDataSampleBuffer, error) -> Void in
if imageDataSampleBuffer == nil {
return
}
// 获得采样缓冲区中的数据
let imageData = AVCaptureStillImageOutput.jpegStillImageNSDataRepresentation(imageDataSampleBuffer!)
// 将数据转换成UIImage
if let stillImage = UIImage(data: imageData!) {
// func saveImageToPhotoLibrary() {
// 判断权限
switch PHPhotoLibrary.authorizationStatus() {
case .authorized:
self.saveImage(image: stillImage)
case .notDetermined:
PHPhotoLibrary.requestAuthorization { [weak self](status) in
if status == .authorized {
self?.saveImage(image: stillImage)
} else {
// self?.back(1)
print("User denied")
}
}
case .restricted, .denied:
let alert = UIAlertController(title: LocString("提示"), message: LocString("请在“设置-隐私-照片“选项中,允许'HDF wear'访问你的照片"), preferredStyle: .alert)
let confirm = UIAlertAction(title: LocString("确定"), style: .default)
alert.addAction(confirm)
default:
break
}
// }
//显示当前拍摄照片
// UIImageWriteToSavedPhotosAlbum(stillImage, nil, nil, nil)
// self.photoImageview.isHidden = false
//
// self.photoImageview.image = stillImage
}
})
}
private func saveImage(image: UIImage) {
PHPhotoLibrary.shared().performChanges({
PHAssetChangeRequest.creationRequestForAsset(from: image)
}, completionHandler: { (isSuccess, error) in
DispatchQueue.main.async {
if isSuccess {// 成功
// MBProgressHUD.showh("已保存到系统相册")
}
}
})
}
@IBAction func toggleCamera(_ sender: Any) {
captureSession.beginConfiguration()
// 在前置和后置之间切换摄像头
let newDevice = (currentDevice?.position == AVCaptureDevice.Position.back) ? frontFacingCamera : backFacingCamera
// 移除之前所有的输入会话
for input in captureSession.inputs {
captureSession.removeInput(input as! AVCaptureDeviceInput)
}
// 将输入端切换到新的采集设备
let cameraInput: AVCaptureDeviceInput
do {
cameraInput = try AVCaptureDeviceInput(device: newDevice!)
}
catch {
print(error)
return
}
// 添加输入端
if captureSession.canAddInput(cameraInput) {
captureSession.addInput(cameraInput)
}
currentDevice = newDevice
// 提交配置
captureSession.commitConfiguration()
}
@IBAction func back(_ sender: Any) {
BluetoothManager.shared.unRegisterSyncDelegate(self)
BluetoothManager.shared.openCamera(false)
IsCameraOpen = false
self.dismiss(animated: true)
// navigationController?.popViewController(animated: true)
}
//取消按钮／重拍
@objc func cancelAction(){
//隐藏Imageview
self.photoImageview.isHidden = true
}
//保存按钮-保存到相册
@objc func saveAction(){
//保存照片到相册
UIImageWriteToSavedPhotosAlbum(self.photoImageview.image!, nil, nil, nil)
self.cancelAction()
}
}
extension CameraViewController {
//MARK: - 放大方法
@objc func zoomIn() {
if let zoomFactor = currentDevice?.videoZoomFactor {
if zoomFactor < 5.0 {
let newZoomFactor = min(zoomFactor + 1.0, 5.0)
do {
try currentDevice?.lockForConfiguration()
currentDevice?.ramp(toVideoZoomFactor: newZoomFactor, withRate: 1.0)
currentDevice?.unlockForConfiguration()
}
catch {
print(error)
}
}
}
}
//MARK: - 缩小方法
@objc func zoomOut() {
if let zoomFactor = currentDevice?.videoZoomFactor {
if zoomFactor > 1.0 {
let newZoomFactor = max(zoomFactor - 1.0, 1.0)
do {
try currentDevice?.lockForConfiguration()
currentDevice?.ramp(toVideoZoomFactor: newZoomFactor, withRate: 1.0)
currentDevice?.unlockForConfiguration()
}
catch {
print(error)
}
}
}
}
//MARK: - 切换摄像头
@objc func toggleCamera1() {
captureSession.beginConfiguration()
// 在前置和后置之间切换摄像头
let newDevice = (currentDevice?.position == AVCaptureDevice.Position.back) ? frontFacingCamera : backFacingCamera
// 移除之前所有的输入会话
for input in captureSession.inputs {
captureSession.removeInput(input as! AVCaptureDeviceInput)
}
// 将输入端切换到新的采集设备
let cameraInput: AVCaptureDeviceInput
do {
cameraInput = try AVCaptureDeviceInput(device: newDevice!)
}
catch {
print(error)
return
}
// 添加输入端
if captureSession.canAddInput(cameraInput) {
captureSession.addInput(cameraInput)
}
currentDevice = newDevice
// 提交配置
captureSession.commitConfiguration()
}
}
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