// // LXFCameraController.m // // // Created by xf-ling on 2017/6/1. // Copyright © 2017年 LXF. All rights reserved. // #import "LXFCameraController.h" #import #import #import "LXFCameraButton.h" #import "LXFPhotoLibraryManager.h" #import #import #define kScreenWidth [UIScreen mainScreen].bounds.size.width #define kScreenHeight [UIScreen mainScreen].bounds.size.height #define SafeViewBottomHeight (kScreenHeight == 812.0 ? 34.0 : 0.0) #define VIDEO_FILEPATH @"video" #define TIMER_INTERVAL 0.01f // 定时器记录视频间隔 #define VIDEO_RECORDER_MAX_TIME 10.0f // 视频最大时长 (单位/秒) #define VIDEO_RECORDER_MIN_TIME 1.0f // 最短视频时长 (单位/秒) #define START_VIDEO_ANIMATION_DURATION 0.3f // 录制视频前的动画时间 #define DEFAULT_VIDEO_ZOOM_FACTOR 3.0f // 默认放大倍数 typedef void(^PropertyChangeBlock)(AVCaptureDevice *captureDevice); @interface LXFCameraController() @property (nonatomic, strong) dispatch_queue_t videoQueue; @property (strong, nonatomic) AVCaptureSession *captureSession; //负责输入和输出设备之间的数据传递 @property (nonatomic, strong) AVCaptureDeviceInput *videoInput; //视频输入 @property (nonatomic, strong) AVCaptureDeviceInput *audioInput; //声音输入 @property (nonatomic, strong) AVCaptureVideoDataOutput *videoOutput; @property (nonatomic, strong) AVCaptureAudioDataOutput *audioOutput; @property (strong, nonatomic) AVCapturePhotoOutput *capturePhotoOutput; //照片输出流 @property (nonatomic, strong) AVAssetWriter *assetWriter; @property (nonatomic, strong) AVAssetWriterInput *assetWriterVideoInput; @property (nonatomic, strong) AVAssetWriterInput *assetWriterAudioInput; @property (nonatomic, strong) NSDictionary *videoCompressionSettings; @property (nonatomic, strong) NSDictionary *audioCompressionSettings; @property (nonatomic, assign) BOOL canWrite; @property (strong, nonatomic) AVCaptureVideoPreviewLayer *captureVideoPreviewLayer; //预览图层 @property (nonatomic, strong) NSTimer *timer; //记录录制时间 @property (weak, nonatomic) IBOutlet UIView *viewContainer; @property (weak, nonatomic) IBOutlet UIButton *rotateCameraButton; @property (weak, nonatomic) IBOutlet UIButton *takeButton; //拍摄按钮 @property (weak, nonatomic) IBOutlet UIButton *closeButton; @property (weak, nonatomic) IBOutlet UILabel *tipLabel; @property (strong, nonatomic) LXFCameraButton *cameraButton; //拍摄按钮 @property (weak, nonatomic) IBOutlet UIImageView *focusImageView; //聚焦视图 @property (assign, nonatomic) Boolean isFocusing; //镜头正在聚焦 @property (assign, nonatomic) Boolean isShooting; //正在拍摄 @property (assign, nonatomic) Boolean isRotatingCamera; //正在旋转摄像头 //捏合缩放摄像头 @property (nonatomic,assign) CGFloat beginGestureScale; //记录开始的缩放比例 @property (nonatomic,assign) CGFloat effectiveScale; //最后的缩放比例 // 拍照摄像后的预览模块 @property (weak, nonatomic) IBOutlet UIButton *cancelButton; @property (weak, nonatomic) IBOutlet UIButton *confirmButton; @property (strong, nonatomic) UIView *photoPreviewContainerView; //相片预览ContainerView @property (strong, nonatomic) UIImageView *photoPreviewImageView; //相片预览ImageView @property (strong, nonatomic) UIView *videoPreviewContainerView; //视频预览View @property (strong, nonatomic) NSURL *videoURL; //视频文件地址 @property (strong, nonatomic) AVPlayerLayer *playerLayer; @property (strong, nonatomic) AVPlayer *player; @property (strong, nonatomic) AVPlayerItem *playerItem; @property (assign, nonatomic) CGFloat currentVideoTimeLength; //当前小视频总时长 @property (assign, nonatomic) UIDeviceOrientation shootingOrientation; //拍摄中的手机方向 @property (strong, nonatomic) CMMotionManager *motionManager; @end @implementation LXFCameraController{ CGFloat timeLength; //时间长度 } #pragma mark - 工厂方法 + (instancetype)defaultCameraController { LXFCameraController *cameraController = [[LXFCameraController alloc] initWithNibName:NSStringFromClass([LXFCameraController class]) bundle:nil]; return cameraController; } #pragma mark - 控制器方法 - (void)viewDidLoad { [super viewDidLoad]; _isFocusing = NO; _isShooting = NO; _isRotatingCamera = NO; _canWrite = NO; _beginGestureScale = 1.0f; _effectiveScale = 1.0f; } - (void)viewWillAppear:(BOOL)animated { [super viewWillAppear:animated]; AVAuthorizationStatus authStatus = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeVideo]; if (authStatus == AVAuthorizationStatusRestricted || authStatus == AVAuthorizationStatusDenied) { [self requestAuthorizationForVideo]; } //判断用户是否允许访问麦克风权限 authStatus = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeAudio]; if (authStatus == AVAuthorizationStatusRestricted || authStatus == AVAuthorizationStatusDenied) { [self requestAuthorizationForVideo]; } [self requestAuthorizationForPhotoLibrary]; [self initAVCaptureSession]; [self configDefaultUIDisplay]; [self addTapGenstureRecognizerForCamera]; } - (void)viewDidAppear:(BOOL)animated { [super viewDidAppear:animated]; [self startSession]; [self setFocusCursorWithPoint:self.viewContainer.center]; [self tipLabelAnimation]; } - (void)viewWillDisappear:(BOOL)animated { [super viewWillDisappear:animated]; } - (void)viewDidDisappear:(BOOL)animated { [super viewDidDisappear:animated]; [self stopSession]; [self stopUpdateAccelerometer]; } - (void)dealloc { NSLog(@"dealloc"); } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; } - (BOOL)prefersStatusBarHidden { return YES; } #pragma mark - 控件方法 /** * 关闭当前界面 */ - (IBAction)closeBtnFunc:(id)sender { [self dismissViewControllerAnimated:YES completion:nil]; } /** * 切换前后摄像头 */ - (IBAction)rotateCameraBtnFunc:(id)sender { _isRotatingCamera = YES; AVCaptureDevice *currentDevice = [self.videoInput device]; AVCaptureDevicePosition currentPosition = [currentDevice position]; AVCaptureDevice *toChangeDevice; AVCaptureDevicePosition toChangePosition = AVCaptureDevicePositionFront; if (currentPosition == AVCaptureDevicePositionUnspecified || currentPosition == AVCaptureDevicePositionFront) { toChangePosition = AVCaptureDevicePositionBack; } toChangeDevice = [self getCameraDeviceWithPosition:toChangePosition]; //获得要调整的设备输入对象 AVCaptureDeviceInput *toChangeDeviceInput = [[AVCaptureDeviceInput alloc] initWithDevice:toChangeDevice error:nil]; //改变会话的配置前一定要先开启配置，配置完成后提交配置改变 [self.captureSession beginConfiguration]; //移除原有输入对象 [self.captureSession removeInput:self.videoInput]; //添加新的输入对象 if ([self.captureSession canAddInput:toChangeDeviceInput]) { [self.captureSession addInput:toChangeDeviceInput]; self.videoInput = toChangeDeviceInput; } //提交会话配置 [self.captureSession commitConfiguration]; _isRotatingCamera = NO; } - (IBAction)cancelBtnfunc:(id)sender { [self removePlayerItemNotification]; [self startAnimationGroup]; } /** * 确认按钮并返回代理 */ - (IBAction)confirmBtnFunc:(id)sender { __weak typeof(self) weakSelf = self; if (self.photoPreviewImageView) { UIImage *finalImage = [self cutImageWithView:self.photoPreviewImageView]; [LXFPhotoLibraryManager savePhotoWithImage:finalImage andAssetCollectionName:self.assetCollectionName withCompletion:^(UIImage *image, NSError *error) { if (self.takePhotosCompletionBlock) { if (error) { NSLog(@"保存照片失败!"); weakSelf.takePhotosCompletionBlock(nil, error); } else { NSLog(@"保存照片成功!"); weakSelf.takePhotosCompletionBlock(image, nil); } } }]; self.confirmButton.userInteractionEnabled = NO; } else { [weakSelf cropWithVideoUrlStr:weakSelf.videoURL start:0 end:weakSelf.currentVideoTimeLength completion:^(NSURL *outputURL, Float64 videoDuration, BOOL isSuccess) { if (isSuccess) { [LXFPhotoLibraryManager saveVideoWithVideoUrl:outputURL andAssetCollectionName:nil withCompletion:^(NSURL *videoUrl, NSError *error) { if (self.shootCompletionBlock) { if (error) { NSLog(@"保存视频失败!"); weakSelf.shootCompletionBlock(nil, 0, nil, error); } else { NSLog(@"保存视频成功!"); // 获取视频的第一帧图片 UIImage *image = [weakSelf thumbnailImageRequestWithVideoUrl:videoUrl andTime:0.01f]; weakSelf.shootCompletionBlock(videoUrl, videoDuration, image, nil); [[NSFileManager defaultManager] removeItemAtURL:weakSelf.videoURL error:nil]; weakSelf.videoURL = nil; } } weakSelf.confirmButton.userInteractionEnabled = NO; }]; } else { NSLog(@"保存视频失败!"); [[NSFileManager defaultManager] removeItemAtURL:weakSelf.videoURL error:nil]; weakSelf.videoURL = nil; [[NSFileManager defaultManager] removeItemAtURL:outputURL error:nil]; } }]; } } #pragma mark - 懒加载 - (AVCaptureSession *)captureSession { if (_captureSession == nil) { _captureSession = [[AVCaptureSession alloc] init]; if ([_captureSession canSetSessionPreset:AVCaptureSessionPresetHigh]) { _captureSession.sessionPreset = AVCaptureSessionPresetHigh; } } return _captureSession; } - (dispatch_queue_t)videoQueue { if (!_videoQueue) { _videoQueue = dispatch_queue_create("XFCameraController", DISPATCH_QUEUE_SERIAL); // dispatch_get_main_queue(); } return _videoQueue; } - (CMMotionManager *)motionManager { if (!_motionManager) { _motionManager = [[CMMotionManager alloc] init]; } return _motionManager; } #pragma mark - 私有方法 /** * 初始化AVCapture会话 */ - (void)initAVCaptureSession { //1、添加 "视频" 与 "音频" 输入流到session [self setupVideo]; [self setupAudio]; //2、添加图片，movie输出流到session [self setupCaptureStillImageOutput]; //3、创建视频预览层，用于实时展示摄像头状态 [self setupCaptureVideoPreviewLayer]; //设置静音状态也可播放声音 AVAudioSession *audioSession = [AVAudioSession sharedInstance]; [audioSession setCategory:AVAudioSessionCategoryPlayback error:nil]; } /** * 设置视频输入 */ - (void)setupVideo { AVCaptureDevice *captureDevice = [self getCameraDeviceWithPosition:AVCaptureDevicePositionBack]; if (!captureDevice) { NSLog(@"取得后置摄像头时出现问题."); return; } NSError *error = nil; self.videoInput = [[AVCaptureDeviceInput alloc] initWithDevice:captureDevice error:&error]; if (error) { NSLog(@"取得设备输入videoInput对象时出错，错误原因：%@", error); return; } //3、将设备输出添加到会话中 if ([self.captureSession canAddInput:self.videoInput]) { [self.captureSession addInput:self.videoInput]; } self.videoOutput = [[AVCaptureVideoDataOutput alloc] init]; self.videoOutput.alwaysDiscardsLateVideoFrames = YES; //立即丢弃旧帧，节省内存，默认YES [self.videoOutput setSampleBufferDelegate:self queue:self.videoQueue]; if ([self.captureSession canAddOutput:self.videoOutput]) { [self.captureSession addOutput:self.videoOutput]; } } /** * 设置音频录入 */ - (void)setupAudio { NSError *error = nil; self.audioInput = [[AVCaptureDeviceInput alloc] initWithDevice:[AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeAudio] error:&error]; if (error) { NSLog(@"取得设备输入audioInput对象时出错，错误原因：%@", error); return; } if ([self.captureSession canAddInput:self.audioInput]) { [self.captureSession addInput:self.audioInput]; } self.audioOutput = [[AVCaptureAudioDataOutput alloc] init]; [self.audioOutput setSampleBufferDelegate:self queue:self.videoQueue]; if([self.captureSession canAddOutput:self.audioOutput]) { [self.captureSession addOutput:self.audioOutput]; } } /** * 设置图片输出 */ - (void)setupCaptureStillImageOutput { self.capturePhotoOutput = [[AVCapturePhotoOutput alloc] init]; if ([self.captureSession canAddOutput:self.capturePhotoOutput]) { [self.captureSession addOutput:self.capturePhotoOutput]; } } /** * 设置预览layer */ - (void)setupCaptureVideoPreviewLayer { _captureVideoPreviewLayer = [[AVCaptureVideoPreviewLayer alloc] initWithSession:self.captureSession]; CALayer *layer = self.viewContainer.layer; _captureVideoPreviewLayer.frame = CGRectMake(0, 0, kScreenWidth, kScreenHeight); _captureVideoPreviewLayer.videoGravity = AVLayerVideoGravityResizeAspect; //填充模式 [layer addSublayer:_captureVideoPreviewLayer]; } /** * 开启会话 */ - (void)startSession { if (![self.captureSession isRunning]) { [self.captureSession startRunning]; } } /** * 停止会话 */ - (void)stopSession { if ([self.captureSession isRunning]) { [self.captureSession stopRunning]; } } /** * 开始拍照录像动画组合 */ - (void)startAnimationGroup { [self configDefaultUIDisplay]; [self setFocusCursorWithPoint:self.viewContainer.center]; [self tipLabelAnimation]; } /** * 配置默认UI信息 */ - (void)configDefaultUIDisplay { if (self.photoPreviewImageView) { [self.photoPreviewImageView removeFromSuperview]; [self.photoPreviewContainerView removeFromSuperview]; self.photoPreviewImageView = nil; self.photoPreviewContainerView = nil; } if (self.videoPreviewContainerView) { [self.player pause]; self.player = nil; self.playerItem = nil; [self.playerLayer removeFromSuperlayer]; self.playerLayer = nil; self.cameraButton.progressPercentage = 0.0f; [self.videoPreviewContainerView removeFromSuperview]; self.videoPreviewContainerView = nil; [[NSFileManager defaultManager] removeItemAtURL:self.videoURL error:nil]; self.videoURL = nil; } [self.view bringSubviewToFront:self.rotateCameraButton]; [self.view bringSubviewToFront:self.closeButton]; [self.rotateCameraButton setHidden:NO]; [self.closeButton setHidden:NO]; [self.view bringSubviewToFront:self.tipLabel]; [self.tipLabel setAlpha:0]; [self.cancelButton setHidden:YES]; [self.confirmButton setHidden:YES]; // 设置拍照按钮 if (_cameraButton == nil) { LXFCameraButton *cameraButton = [LXFCameraButton defaultCameraButton]; _cameraButton = cameraButton; [self.view addSubview:cameraButton]; CGFloat cameraBtnX = (kScreenWidth - cameraButton.bounds.size.width) / 2; CGFloat cameraBtnY = kScreenHeight - cameraButton.bounds.size.height - 60 - SafeViewBottomHeight; //距离底部60 cameraButton.frame = CGRectMake(cameraBtnX, cameraBtnY, cameraButton.bounds.size.width, cameraButton.bounds.size.height); [self.view bringSubviewToFront:cameraButton]; // 设置拍照按钮点击事件 __weak typeof(self) weakSelf = self; // 配置拍照方法 [cameraButton configureTapCameraButtonEventWithBlock:^(UITapGestureRecognizer *tapGestureRecognizer) { [weakSelf takePhotos:tapGestureRecognizer]; }]; // 配置拍摄方法 [cameraButton configureLongPressCameraButtonEventWithBlock:^(UILongPressGestureRecognizer *longPressGestureRecognizer) { [weakSelf longPressCameraButtonFunc:longPressGestureRecognizer]; }]; } [self.cameraButton setHidden:NO]; [self.view bringSubviewToFront:self.cameraButton]; // 对焦imageView [self.view bringSubviewToFront:self.focusImageView]; [self.focusImageView setAlpha:0]; // 监听屏幕方向 [self startUpdateAccelerometer]; } /** * 提示语动画 */ - (void)tipLabelAnimation { [self.view bringSubviewToFront:self.tipLabel]; __weak typeof(self) weakSelf = self; [UIView animateWithDuration:1.0f delay:0.5f options:UIViewAnimationOptionCurveEaseInOut animations:^{ [weakSelf.tipLabel setAlpha:1]; } completion:^(BOOL finished) { [UIView animateWithDuration:1.0f delay:3.0f options:UIViewAnimationOptionCurveEaseInOut animations:^{ [weakSelf.tipLabel setAlpha:0]; } completion:nil]; }]; } /** * 取得指定位置的摄像头 * * @param position 摄像头位置 * * @return 摄像头设备 */ - (AVCaptureDevice *)getCameraDeviceWithPosition:(AVCaptureDevicePosition )position { AVCaptureDeviceDiscoverySession *deviceDiscoverySession = [AVCaptureDeviceDiscoverySession discoverySessionWithDeviceTypes:@[AVCaptureDeviceTypeBuiltInWideAngleCamera] mediaType:AVMediaTypeVideo position:position]; for (AVCaptureDevice *device in deviceDiscoverySession.devices) { if ([device position] == position) { return device; } } return nil; } /** * 改变设备属性的统一操作方法 * * @param propertyChange 属性改变操作 */ - (void)changeDeviceProperty:(PropertyChangeBlock)propertyChange { AVCaptureDevice *captureDevice = [self.videoInput device]; NSError *error; //注意改变设备属性前一定要首先调用lockForConfiguration:调用完之后使用unlockForConfiguration方法解锁 if ([captureDevice lockForConfiguration:&error]) { propertyChange(captureDevice); [captureDevice unlockForConfiguration]; } else { NSLog(@"设置设备属性过程发生错误，错误信息：%@",error.localizedDescription); } } #pragma mark - 拍照功能 /** * 拍照方法 */ - (void)takePhotos:(UITapGestureRecognizer *)tapGestureRecognizer { //根据设备输出获得连接 // AVCaptureConnection *captureConnection = [self.capturePhotoOutput connectionWithMediaType:AVMediaTypeVideo]; // [captureConnection setVideoScaleAndCropFactor:self.effectiveScale]; //根据连接取得设备输出的数据 AVCapturePhotoSettings *settings = [AVCapturePhotoSettings photoSettings]; // [settings]; [self.capturePhotoOutput capturePhotoWithSettings:settings delegate:self]; } /** * 预览图片 */ - (void)previewPhotoWithImage:(UIImage *)image { [self stopUpdateAccelerometer]; [self.cameraButton setHidden:YES]; [self.closeButton setHidden:YES]; [self.rotateCameraButton setHidden:YES]; UIImage *finalImage = nil; if (self.shootingOrientation == UIDeviceOrientationLandscapeRight) { finalImage = [self rotateImage:image withOrientation:UIImageOrientationDown]; } else if (self.shootingOrientation == UIDeviceOrientationLandscapeLeft) { finalImage = [self rotateImage:image withOrientation:UIImageOrientationUp]; } else if (self.shootingOrientation == UIDeviceOrientationPortraitUpsideDown) { finalImage = [self rotateImage:image withOrientation:UIImageOrientationLeft]; } else { finalImage = [self rotateImage:image withOrientation:UIImageOrientationRight]; } // NSLog(@"image %@",NSStringFromCGSize(image.size)); // NSLog(@"finalImage %@",NSStringFromCGSize(finalImage.size)); self.photoPreviewImageView = [[UIImageView alloc] init]; float videoRatio = finalImage.size.width / finalImage.size.height; //得到的图片 高/宽 if (self.shootingOrientation == UIDeviceOrientationLandscapeRight || self.shootingOrientation == UIDeviceOrientationLandscapeLeft) { CGFloat height = kScreenWidth * videoRatio; CGFloat y = (kScreenHeight - height) / 2; [self.photoPreviewImageView setFrame:CGRectMake(0, y, kScreenWidth, height)]; } else { [self.photoPreviewImageView setFrame:CGRectMake(0, 0, kScreenWidth, kScreenWidth*videoRatio)]; } self.photoPreviewImageView.image = finalImage; self.photoPreviewContainerView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, kScreenWidth, kScreenHeight)]; self.photoPreviewContainerView.backgroundColor = [UIColor blackColor]; [self.photoPreviewContainerView addSubview:self.photoPreviewImageView]; [self.view addSubview:self.photoPreviewContainerView]; self.photoPreviewImageView.center = self.view.center; [self.view bringSubviewToFront:self.photoPreviewImageView]; [self.view bringSubviewToFront:self.cancelButton]; [self.view bringSubviewToFront:self.confirmButton]; [self.cancelButton setHidden:NO]; [self.confirmButton setHidden:NO]; } - (UIImage *)cutImageWithView:(UIView *)view { UIGraphicsBeginImageContextWithOptions(view.frame.size, NO, 0); [view.layer renderInContext:UIGraphicsGetCurrentContext()]; UIImage *image = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); return image; } #pragma mark - 视频录制 /** * 录制视频方法 */ - (void)longPressCameraButtonFunc:(UILongPressGestureRecognizer *)sender { AVAuthorizationStatus authStatus = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeVideo]; if (authStatus == AVAuthorizationStatusRestricted || authStatus ==AVAuthorizationStatusDenied) { return; } //判断用户是否允许访问麦克风权限 authStatus = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeAudio]; if (authStatus == AVAuthorizationStatusRestricted || authStatus ==AVAuthorizationStatusDenied) { return; } switch (sender.state) { case UIGestureRecognizerStateBegan: [self startVideoRecorder]; break; case UIGestureRecognizerStateCancelled: [self stopVideoRecorder]; break; case UIGestureRecognizerStateEnded: [self stopVideoRecorder]; break; case UIGestureRecognizerStateFailed: [self stopVideoRecorder]; break; default: break; } } /** * 开始录制视频 */ - (void)startVideoRecorder { _isShooting = YES; [self stopUpdateAccelerometer]; [self.cameraButton startShootAnimationWithDuration:START_VIDEO_ANIMATION_DURATION]; __weak typeof(self) weakSelf = self; dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(START_VIDEO_ANIMATION_DURATION * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{ NSURL *url = [NSURL fileURLWithPath:[weakSelf createVideoFilePath]]; self.videoURL = url; [self setUpWriter]; [weakSelf timerFired]; }); } /** * 结束录制视频 */ - (void)stopVideoRecorder { if (_isShooting) { _isShooting = NO; self.cameraButton.progressPercentage = 0.0f; [self.cameraButton stopShootAnimation]; [self timerStop]; __weak __typeof(self)weakSelf = self; if(_assetWriter && _assetWriter.status == AVAssetWriterStatusWriting) { // dispatch_async(self.videoQueue, ^{ [_assetWriter finishWritingWithCompletionHandler:^{ weakSelf.canWrite = NO; weakSelf.assetWriter = nil; weakSelf.assetWriterAudioInput = nil; weakSelf.assetWriterVideoInput = nil; }]; // }); } if (timeLength < VIDEO_RECORDER_MIN_TIME) { return; } [self.cameraButton setHidden:YES]; dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.3f * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{ [weakSelf previewVideoAfterShoot]; }); } else { // nothing } } /** * 设置写入视频属性 */ - (void)setUpWriter { if (self.videoURL == nil) { return; } self.assetWriter = [AVAssetWriter assetWriterWithURL:self.videoURL fileType:AVFileTypeMPEG4 error:nil]; //写入视频大小 NSInteger numPixels = kScreenWidth * kScreenHeight; //每像素比特 CGFloat bitsPerPixel = 12.0; NSInteger bitsPerSecond = numPixels * bitsPerPixel; // 码率和帧率设置 NSDictionary *compressionProperties = @{ AVVideoAverageBitRateKey : @(bitsPerSecond), AVVideoExpectedSourceFrameRateKey : @(15), AVVideoMaxKeyFrameIntervalKey : @(15), AVVideoProfileLevelKey : AVVideoProfileLevelH264BaselineAutoLevel }; CGFloat width = kScreenHeight; CGFloat height = kScreenWidth; //视频属性 if (@available(iOS 11.0, *)) { self.videoCompressionSettings = @{ AVVideoCodecKey : AVVideoCodecTypeH264, AVVideoWidthKey : @(width * 2), AVVideoHeightKey : @(height * 2), AVVideoScalingModeKey : AVVideoScalingModeResizeAspect, AVVideoCompressionPropertiesKey : compressionProperties }; } else { // Fallback on earlier versions } _assetWriterVideoInput = [AVAssetWriterInput assetWriterInputWithMediaType:AVMediaTypeVideo outputSettings:self.videoCompressionSettings]; //expectsMediaDataInRealTime 必须设为yes，需要从capture session 实时获取数据 _assetWriterVideoInput.expectsMediaDataInRealTime = YES; if (self.shootingOrientation == UIDeviceOrientationLandscapeRight) { _assetWriterVideoInput.transform = CGAffineTransformMakeRotation(M_PI); } else if (self.shootingOrientation == UIDeviceOrientationLandscapeLeft) { _assetWriterVideoInput.transform = CGAffineTransformMakeRotation(0); } else if (self.shootingOrientation == UIDeviceOrientationPortraitUpsideDown) { _assetWriterVideoInput.transform = CGAffineTransformMakeRotation(M_PI + (M_PI / 2.0)); } else { _assetWriterVideoInput.transform = CGAffineTransformMakeRotation(M_PI / 2.0); } // 音频设置 self.audioCompressionSettings = @{ AVEncoderBitRatePerChannelKey : @(28000), AVFormatIDKey : @(kAudioFormatMPEG4AAC), AVNumberOfChannelsKey : @(1), AVSampleRateKey : @(22050) }; _assetWriterAudioInput = [AVAssetWriterInput assetWriterInputWithMediaType:AVMediaTypeAudio outputSettings:self.audioCompressionSettings]; _assetWriterAudioInput.expectsMediaDataInRealTime = YES; if ([_assetWriter canAddInput:_assetWriterVideoInput]) { [_assetWriter addInput:_assetWriterVideoInput]; } else { NSLog(@"AssetWriter videoInput append Failed"); } if ([_assetWriter canAddInput:_assetWriterAudioInput]) { [_assetWriter addInput:_assetWriterAudioInput]; } else { NSLog(@"AssetWriter audioInput Append Failed"); } _canWrite = NO; } - (NSString *)createVideoFilePath { // 创建视频文件的存储路径 NSString *filePath = [self createVideoFolderPath]; if (filePath == nil) { return nil; } NSString *videoType = @".mp4"; NSString *videoDestDateString = [self createFileNamePrefix]; NSString *videoFileName = [videoDestDateString stringByAppendingString:videoType]; NSUInteger idx = 1; /*We only allow 10000 same file name*/ NSString *finalPath = [NSString stringWithFormat:@"%@/%@", filePath, videoFileName]; while (idx % 10000 && [[NSFileManager defaultManager] fileExistsAtPath:finalPath]) { finalPath = [NSString stringWithFormat:@"%@/%@_(%lu)%@", filePath, videoDestDateString, (unsigned long)idx++, videoType]; } return finalPath; } - (NSString *)createVideoFolderPath { NSFileManager *fileManager = [NSFileManager defaultManager]; NSString *homePath = NSHomeDirectory(); NSString *tmpFilePath; if (homePath.length > 0) { NSString *documentPath = [homePath stringByAppendingString:@"/Documents"]; if ([fileManager fileExistsAtPath:documentPath isDirectory:NULL] == YES) { BOOL success = NO; NSArray *paths = [fileManager contentsOfDirectoryAtPath:documentPath error:nil]; //offline file folder tmpFilePath = [documentPath stringByAppendingString:[NSString stringWithFormat:@"/%@", VIDEO_FILEPATH]]; if ([paths containsObject:VIDEO_FILEPATH] == NO) { success = [fileManager createDirectoryAtPath:tmpFilePath withIntermediateDirectories:YES attributes:nil error:nil]; if (!success) { tmpFilePath = nil; } } return tmpFilePath; } } return false; } /** * 创建文件名 */ - (NSString *)createFileNamePrefix { NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init]; [dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss zzz"]; NSString *destDateString = [dateFormatter stringFromDate:[NSDate date]]; destDateString = [destDateString stringByReplacingOccurrencesOfString:@" " withString:@"-"]; destDateString = [destDateString stringByReplacingOccurrencesOfString:@"+" withString:@"-"]; destDateString = [destDateString stringByReplacingOccurrencesOfString:@":" withString:@"-"]; return destDateString; } /** * 开启定时器 */ - (void)timerFired { timeLength = 0; self.timer = [NSTimer scheduledTimerWithTimeInterval:TIMER_INTERVAL target:self selector:@selector(timerRecord) userInfo:nil repeats:YES]; } /** * 绿色转圈百分比计算 */ - (void)timerRecord { if (!_isShooting) { [self timerStop]; return ; } // 时间大于VIDEO_RECORDER_MAX_TIME则停止录制 if (timeLength > VIDEO_RECORDER_MAX_TIME) { [self stopVideoRecorder]; } timeLength += TIMER_INTERVAL; // NSLog(@"%lf", timeLength / VIDEO_RECORDER_MAX_TIME); self.cameraButton.progressPercentage = timeLength / VIDEO_RECORDER_MAX_TIME; } /** * 停止定时器 */ - (void)timerStop { if ([self.timer isValid]) { [self.timer invalidate]; self.timer = nil; } } /** * 预览录制的视频 */ - (void)previewVideoAfterShoot { if (self.videoURL == nil || self.videoPreviewContainerView != nil) { return; } AVURLAsset *asset = [AVURLAsset assetWithURL:self.videoURL]; //获取视频总时长 Float64 duration = CMTimeGetSeconds(asset.duration); self.currentVideoTimeLength = duration; // 初始化AVPlayer self.videoPreviewContainerView = [[UIView alloc] init]; self.videoPreviewContainerView.frame = CGRectMake(0, 0, kScreenWidth, kScreenHeight); self.videoPreviewContainerView.backgroundColor = [UIColor blackColor]; self.playerItem = [AVPlayerItem playerItemWithAsset:asset]; self.player = [[AVPlayer alloc] initWithPlayerItem:_playerItem]; self.playerLayer = [AVPlayerLayer playerLayerWithPlayer:self.player]; self.playerLayer.frame = CGRectMake(0, 0, kScreenWidth, kScreenHeight); self.playerLayer.videoGravity = AVLayerVideoGravityResizeAspect; [self.videoPreviewContainerView.layer addSublayer:self.playerLayer]; // 其余UI布局设置 [self.viewContainer addSubview:self.videoPreviewContainerView]; [self.viewContainer bringSubviewToFront:self.videoPreviewContainerView]; [self.viewContainer bringSubviewToFront:self.cancelButton]; [self.viewContainer bringSubviewToFront:self.confirmButton]; [self.cameraButton setHidden:YES]; [self.closeButton setHidden:YES]; [self.rotateCameraButton setHidden:YES]; [self.cancelButton setHidden:NO]; [self.confirmButton setHidden:NO]; // 重复播放预览视频 [self addNotificationWithPlayerItem]; // 开始播放 [self.player play]; } /** * 截取指定时间的视频缩略图 * * @param timeBySecond 时间点，单位：s */ - (UIImage *)thumbnailImageRequestWithVideoUrl:(NSURL *)videoUrl andTime:(CGFloat)timeBySecond { if (self.videoURL == nil) { return nil; } AVURLAsset *urlAsset = [AVURLAsset assetWithURL:videoUrl]; //根据AVURLAsset创建AVAssetImageGenerator AVAssetImageGenerator *imageGenerator = [AVAssetImageGenerator assetImageGeneratorWithAsset:urlAsset]; /*截图 * requestTime:缩略图创建时间 * actualTime:缩略图实际生成的时间 */ NSError *error = nil; CMTime requestTime = CMTimeMakeWithSeconds(timeBySecond, 10); //CMTime是表示电影时间信息的结构体，第一个参数表示是视频第几秒，第二个参数表示每秒帧数.(如果要活的某一秒的第几帧可以使用CMTimeMake方法) CMTime actualTime; CGImageRef cgImage = [imageGenerator copyCGImageAtTime:requestTime actualTime:&actualTime error:&error]; if(error) { NSLog(@"截取视频缩略图时发生错误，错误信息：%@", error.localizedDescription); return nil; } CMTimeShow(actualTime); UIImage *image = [UIImage imageWithCGImage:cgImage]; CGImageRelease(cgImage); UIImage *finalImage = nil; if (self.shootingOrientation == UIDeviceOrientationLandscapeRight) { finalImage = [self rotateImage:image withOrientation:UIImageOrientationDown]; } else if (self.shootingOrientation == UIDeviceOrientationLandscapeLeft) { finalImage = [self rotateImage:image withOrientation:UIImageOrientationUp]; } else if (self.shootingOrientation == UIDeviceOrientationPortraitUpsideDown) { finalImage = [self rotateImage:image withOrientation:UIImageOrientationLeft]; } else { finalImage = [self rotateImage:image withOrientation:UIImageOrientationRight]; } return finalImage; } /** * 图片旋转 */ - (UIImage *)rotateImage:(UIImage *)image withOrientation:(UIImageOrientation)orientation { long double rotate = 0.0; CGRect rect; float translateX = 0; float translateY = 0; float scaleX = 1.0; float scaleY = 1.0; switch (orientation) { case UIImageOrientationLeft: rotate = M_PI_2; rect = CGRectMake(0, 0, image.size.height, image.size.width); translateX = 0; translateY = -rect.size.width; scaleY = rect.size.width/rect.size.height; scaleX = rect.size.height/rect.size.width; break; case UIImageOrientationRight: rotate = 3 * M_PI_2; rect = CGRectMake(0, 0, image.size.height, image.size.width); translateX = -rect.size.height; translateY = 0; scaleY = rect.size.width/rect.size.height; scaleX = rect.size.height/rect.size.width; break; case UIImageOrientationDown: rotate = M_PI; rect = CGRectMake(0, 0, image.size.width, image.size.height); translateX = -rect.size.width; translateY = -rect.size.height; break; default: rotate = 0.0; rect = CGRectMake(0, 0, image.size.width, image.size.height); translateX = 0; translateY = 0; break; } UIGraphicsBeginImageContext(rect.size); CGContextRef context = UIGraphicsGetCurrentContext(); //做CTM变换 CGContextTranslateCTM(context, 0.0, rect.size.height); CGContextScaleCTM(context, 1.0, -1.0); CGContextRotateCTM(context, rotate); CGContextTranslateCTM(context, translateX, translateY); CGContextScaleCTM(context, scaleX, scaleY); //绘制图片 CGContextDrawImage(context, CGRectMake(0, 0, rect.size.width, rect.size.height), image.CGImage); UIImage *newPic = UIGraphicsGetImageFromCurrentImageContext(); return newPic; } #pragma mark - 截取视频方法 - (void)cropWithVideoUrlStr:(NSURL *)videoUrl start:(CGFloat)startTime end:(CGFloat)endTime completion:(void (^)(NSURL *outputURL, Float64 videoDuration, BOOL isSuccess))completionHandle { AVURLAsset *asset =[[AVURLAsset alloc] initWithURL:videoUrl options:nil]; //获取视频总时长 Float64 duration = CMTimeGetSeconds(asset.duration); if (duration > VIDEO_RECORDER_MAX_TIME) { duration = VIDEO_RECORDER_MAX_TIME; } startTime = 0; endTime = duration; NSString *outputFilePath = [self createVideoFilePath]; NSURL *outputFileUrl = [NSURL fileURLWithPath:outputFilePath]; NSArray *compatiblePresets = [AVAssetExportSession exportPresetsCompatibleWithAsset:asset]; if ([compatiblePresets containsObject:AVAssetExportPresetMediumQuality]) { AVAssetExportSession *exportSession = [[AVAssetExportSession alloc] initWithAsset:asset presetName:AVAssetExportPresetPassthrough]; NSURL *outputURL = outputFileUrl; exportSession.outputURL = outputURL; exportSession.outputFileType = AVFileTypeMPEG4; exportSession.shouldOptimizeForNetworkUse = YES; CMTime start = CMTimeMakeWithSeconds(startTime, asset.duration.timescale); CMTime duration = CMTimeMakeWithSeconds(endTime - startTime,asset.duration.timescale); CMTimeRange range = CMTimeRangeMake(start, duration); exportSession.timeRange = range; [exportSession exportAsynchronouslyWithCompletionHandler:^{ switch ([exportSession status]) { case AVAssetExportSessionStatusFailed: { NSLog(@"合成失败：%@", [[exportSession error] description]); completionHandle(outputURL, endTime, NO); } break; case AVAssetExportSessionStatusCancelled: { completionHandle(outputURL, endTime, NO); } break; case AVAssetExportSessionStatusCompleted: { completionHandle(outputURL, endTime, YES); } break; default: { completionHandle(outputURL, endTime, NO); } break; } }]; } } #pragma mark - 预览视频通知 /** * 添加播放器通知 */ -(void)addNotificationWithPlayerItem { [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(playVideoFinished:) name:AVPlayerItemDidPlayToEndTimeNotification object:self.playerItem]; } -(void)removePlayerItemNotification { [[NSNotificationCenter defaultCenter] removeObserver:self]; } /** * 播放完成通知 * * @param notification 通知对象 */ -(void)playVideoFinished:(NSNotification *)notification { // NSLog(@"视频播放完成."); // 播放完成后重复播放 // 跳到最新的时间点开始播放 [self.player seekToTime:CMTimeMake(0, 1)]; [self.player play]; } #pragma mark - AVCapturePhotoCaptureDelegate - (void)captureOutput:(AVCapturePhotoOutput *)output didFinishProcessingPhoto:(AVCapturePhoto *)photo error:(NSError *)error API_AVAILABLE(ios(11.0)){ if (!error) { NSData *data = [photo fileDataRepresentation]; UIImage *image = [UIImage imageWithData:data]; [self previewPhotoWithImage:image]; } } #pragma mark - AVCaptureVideoDataOutputSampleBufferDelegate AVCaptureAudioDataOutputSampleBufferDelegate - (void)captureOutput:(AVCaptureOutput *)captureOutput didOutputSampleBuffer:(CMSampleBufferRef)sampleBuffer fromConnection:(AVCaptureConnection *)connection { if (_isRotatingCamera) { return; } @autoreleasepool { //视频 if (connection == [self.videoOutput connectionWithMediaType:AVMediaTypeVideo]) { @synchronized(self) { if (_isShooting) { [self appendSampleBuffer:sampleBuffer ofMediaType:AVMediaTypeVideo]; } } } //音频 if (connection == [self.audioOutput connectionWithMediaType:AVMediaTypeAudio]) { @synchronized(self) { if (_isShooting) { [self appendSampleBuffer:sampleBuffer ofMediaType:AVMediaTypeAudio]; } } } } } /** * 开始写入数据 */ - (void)appendSampleBuffer:(CMSampleBufferRef)sampleBuffer ofMediaType:(NSString *)mediaType { if (sampleBuffer == NULL) { NSLog(@"empty sampleBuffer"); return; } // CFRetain(sampleBuffer); // dispatch_async(self.videoQueue, ^{ @autoreleasepool { if (!self.canWrite && mediaType == AVMediaTypeVideo) { [self.assetWriter startWriting]; [self.assetWriter startSessionAtSourceTime:CMSampleBufferGetPresentationTimeStamp(sampleBuffer)]; self.canWrite = YES; } //写入视频数据 if (mediaType == AVMediaTypeVideo) { if (self.assetWriterVideoInput.readyForMoreMediaData) { BOOL success = [self.assetWriterVideoInput appendSampleBuffer:sampleBuffer]; if (!success) { @synchronized (self) { [self stopVideoRecorder]; } } } } //写入音频数据 if (mediaType == AVMediaTypeAudio) { if (self.assetWriterAudioInput.readyForMoreMediaData) { BOOL success = [self.assetWriterAudioInput appendSampleBuffer:sampleBuffer]; if (!success) { @synchronized (self) { [self stopVideoRecorder]; } } } } // CFRelease(sampleBuffer); } // }); } #pragma mark - 摄像头聚焦，与缩放 /** * 添加点按手势 */ - (void)addTapGenstureRecognizerForCamera { UIPinchGestureRecognizer *pinchGesture = [[UIPinchGestureRecognizer alloc] initWithTarget:self action:@selector(handlePinchGesture:)]; pinchGesture.delegate = self; [self.viewContainer addGestureRecognizer:pinchGesture]; } /** * 点击屏幕，聚焦事件 */ - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { // 不聚焦的情况：聚焦中，旋转摄像头中，查看录制的视频中，查看照片中 if (_isFocusing || touches.count == 0 || _isRotatingCamera || _videoPreviewContainerView || _photoPreviewImageView) { return; } UITouch *touch = nil; for (UITouch *t in touches) { touch = t; break; } CGPoint point = [touch locationInView:self.viewContainer];; if (point.y > CGRectGetMaxY(self.tipLabel.frame)) { return; } [self setFocusCursorWithPoint:point]; } /** * 设置聚焦光标位置 * * @param point 光标位置 */ - (void)setFocusCursorWithPoint:(CGPoint)point { self.isFocusing = YES; self.focusImageView.center = point; self.focusImageView.transform = CGAffineTransformMakeScale(1.5, 1.5); self.focusImageView.alpha = 1; //将UI坐标转化为摄像头坐标 CGPoint cameraPoint = [self.captureVideoPreviewLayer captureDevicePointOfInterestForPoint:point]; [self focusWithPoint:cameraPoint]; __weak typeof(self) weakSelf = self; [UIView animateWithDuration:1.0 animations:^{ weakSelf.focusImageView.transform = CGAffineTransformIdentity; } completion:^(BOOL finished) { weakSelf.focusImageView.alpha = 0; weakSelf.isFocusing = NO; }]; } /** * 设置聚焦点 * * @param point 聚焦点 */ -(void)focusWithPoint:(CGPoint)point { [self changeDeviceProperty:^(AVCaptureDevice *captureDevice) { // 聚焦 if ([captureDevice isFocusModeSupported:AVCaptureFocusModeContinuousAutoFocus]) { [captureDevice setFocusMode:AVCaptureFocusModeContinuousAutoFocus]; } if ([captureDevice isFocusPointOfInterestSupported]) { [captureDevice setFocusPointOfInterest:point]; } // 曝光 if ([captureDevice isExposureModeSupported:AVCaptureExposureModeContinuousAutoExposure]) { [captureDevice setExposureMode:AVCaptureExposureModeContinuousAutoExposure]; } if ([captureDevice isExposurePointOfInterestSupported]) { [captureDevice setExposurePointOfInterest:point]; } }]; } - (void)handlePinchGesture:(UIPinchGestureRecognizer *)recognizer { if (_isShooting) { return; } BOOL allTouchesAreOnTheCaptureVideoPreviewLayer = YES; NSUInteger numTouches = [recognizer numberOfTouches], i; for ( i = 0; i < numTouches; ++i) { CGPoint location = [recognizer locationOfTouch:i inView:self.viewContainer]; CGPoint convertedLocation = [self.captureVideoPreviewLayer convertPoint:location fromLayer:self.captureVideoPreviewLayer.superlayer]; if (![self.captureVideoPreviewLayer containsPoint:convertedLocation]) { allTouchesAreOnTheCaptureVideoPreviewLayer = NO; break; } } if (allTouchesAreOnTheCaptureVideoPreviewLayer) { CGFloat videoMaxZoomFactor = self.videoInput.device.activeFormat.videoMaxZoomFactor; CGFloat maxScaleAndCropFactor = videoMaxZoomFactor 1.0f) && (currentScale < maxScaleAndCropFactor)) { self.effectiveScale = self.beginGestureScale * recognizer.scale; if ((self.effectiveScale < videoMaxZoomFactor) && (self.effectiveScale > 1.0f)) { [self changeDeviceProperty:^(AVCaptureDevice *captureDevice) { [captureDevice rampToVideoZoomFactor:self.effectiveScale withRate:10.0f]; }]; } } } } #pragma mark - UIGestureRecognizerDelegate - (BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)gestureRecognizer { if ([gestureRecognizer isKindOfClass:[UIPinchGestureRecognizer class]]) { self.beginGestureScale = self.effectiveScale; } return YES; } #pragma mark - 重力感应相关 /** * 开始监听屏幕方向 */ - (void)startUpdateAccelerometer { if ([self.motionManager isAccelerometerAvailable] == YES) { __weak typeof(self) weakSelf = self; //回调会一直调用,建议获取到就调用下面的停止方法，需要再重新开始，当然如果需求是实时不间断的话可以等离开页面之后再stop [self.motionManager setAccelerometerUpdateInterval:1.0]; [self.motionManager startAccelerometerUpdatesToQueue:[NSOperationQueue currentQueue] withHandler:^(CMAccelerometerData *accelerometerData, NSError *error) { double x = accelerometerData.acceleration.x; double y = accelerometerData.acceleration.y; if ((fabs(y) + 0.1f) >= fabs(x)) { // NSLog(@"y:%lf", y); if (y >= 0.1f) { // Down NSLog(@"Down"); weakSelf.shootingOrientation = UIDeviceOrientationPortraitUpsideDown; } else { // Portrait NSLog(@"Portrait"); weakSelf.shootingOrientation = UIDeviceOrientationPortrait; } } else { // NSLog(@"x:%lf", x); if (x >= 0.1f) { // Right NSLog(@"Right"); weakSelf.shootingOrientation = UIDeviceOrientationLandscapeRight; } else if (x <= 0.1f) { // Left NSLog(@"Left"); weakSelf.shootingOrientation = UIDeviceOrientationLandscapeLeft; } else { // Portrait NSLog(@"Portrait"); weakSelf.shootingOrientation = UIDeviceOrientationPortrait; } } }]; } } /** * 停止监听屏幕方向 */ - (void)stopUpdateAccelerometer { if ([self.motionManager isAccelerometerActive] == YES) { [self.motionManager stopAccelerometerUpdates]; _motionManager = nil; } } #pragma mark - 判断是否有权限 /** * 请求权限 */ - (void)requestAuthorizationForVideo { __weak typeof(self) weakSelf = self; // 请求相机权限 AVAuthorizationStatus videoAuthStatus = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeVideo]; if (videoAuthStatus != AVAuthorizationStatusAuthorized) { NSDictionary *infoDictionary = [[NSBundle mainBundle] infoDictionary]; NSString *appName = [infoDictionary objectForKey:@"CFBundleDisplayName"]; if (appName == nil) { appName = @"APP"; } NSString *message = [NSString stringWithFormat:@"允许%@访问你的相机？", appName]; UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"警告" message:message preferredStyle:UIAlertControllerStyleAlert]; UIAlertAction *okAction = [UIAlertAction actionWithTitle:@"好的" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) { [weakSelf dismissViewControllerAnimated:YES completion:nil]; }]; UIAlertAction *setAction = [UIAlertAction actionWithTitle:@"设置" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) { NSURL *url = [NSURL URLWithString:UIApplicationOpenSettingsURLString]; if ([[UIApplication sharedApplication] canOpenURL:url]) { [[UIApplication sharedApplication] openURL:url options:@{} completionHandler:nil]; } [weakSelf dismissViewControllerAnimated:YES completion:nil]; }]; [alertController addAction:okAction]; [alertController addAction:setAction]; [self presentViewController:alertController animated:YES completion:nil]; } // 请求麦克风权限 AVAuthorizationStatus audioAuthStatus = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeAudio]; if (audioAuthStatus != AVAuthorizationStatusAuthorized) { NSDictionary *infoDictionary = [[NSBundle mainBundle] infoDictionary]; NSString *appName = [infoDictionary objectForKey:@"CFBundleDisplayName"]; if (appName == nil) { appName = @"APP"; } NSString *message = [NSString stringWithFormat:@"允许%@访问你的麦克风？", appName]; UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"警告" message:message preferredStyle:UIAlertControllerStyleAlert]; UIAlertAction *okAction = [UIAlertAction actionWithTitle:@"好的" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) { [weakSelf dismissViewControllerAnimated:YES completion:nil]; }]; UIAlertAction *setAction = [UIAlertAction actionWithTitle:@"设置" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) { NSURL *url = [NSURL URLWithString:UIApplicationOpenSettingsURLString]; if ([[UIApplication sharedApplication] canOpenURL:url]) { [[UIApplication sharedApplication] openURL:url options:@{} completionHandler:nil]; } [weakSelf dismissViewControllerAnimated:YES completion:nil]; }]; [alertController addAction:okAction]; [alertController addAction:setAction]; [self presentViewController:alertController animated:YES completion:nil]; } } - (void)requestAuthorizationForPhotoLibrary { __weak typeof(self) weakSelf = self; // 请求照片权限 [LXFPhotoLibraryManager requestALAssetsLibraryAuthorizationWithCompletion:^(Boolean isAuth) { if (!isAuth) { NSDictionary *infoDictionary = [[NSBundle mainBundle] infoDictionary]; NSString *appName = [infoDictionary objectForKey:@"CFBundleDisplayName"]; if (appName == nil) { appName = @"APP"; } NSString *message = [NSString stringWithFormat:@"允许%@访问你的相册？", appName]; UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"警告" message:message preferredStyle:UIAlertControllerStyleAlert]; UIAlertAction *okAction = [UIAlertAction actionWithTitle:@"好的" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) { [weakSelf dismissViewControllerAnimated:YES completion:nil]; }]; UIAlertAction *setAction = [UIAlertAction actionWithTitle:@"设置" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) { NSURL *url = [NSURL URLWithString:UIApplicationOpenSettingsURLString]; if ([[UIApplication sharedApplication] canOpenURL:url]) { [[UIApplication sharedApplication] openURL:url options:@{} completionHandler:nil]; } [weakSelf dismissViewControllerAnimated:YES completion:nil]; }]; [alertController addAction:okAction]; [alertController addAction:setAction]; [weakSelf presentViewController:alertController animated:YES completion:nil]; } }]; } @end