跟昨天推文一樣，iOS的錄屏功能，知識點就不寫了，用大白話淺寫一下開發邏輯 ~

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錄屏模塊使用邏輯：

初始化錄屏

開始用就完事了

實際開發應用

一. 初始化錄屏
為了能在剛進到頁面的時候就彈出權限提示，所以在視圖出現的時候就初始化錄屏模塊

- (void)viewWillAppear:(BOOL)animated {[super viewWillAppear:animated];[self initScreenRecord]; } #pragma mark - 錄屏 - (void)initScreenRecord {// 相機權限AVAuthorizationStatus authStatus = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeVideo];if (authStatus == AVAuthorizationStatusRestricted || authStatus ==AVAuthorizationStatusDenied) {//無權限 需要跳轉到設置里開啟權限NSURL *url = [NSURL URLWithString:UIApplicationOpenSettingsURLString];if ([[UIApplication sharedApplication] canOpenURL:url]) {[[UIApplication sharedApplication] openURL:url options:@{} completionHandler:nil];}} else {// 錄屏if (![[RPScreenRecorder sharedRecorder] isAvailable]) {// 無法開啟錄屏功能} else {NSLog(@"開始錄屏了");}} }

二. 開始錄屏

- (void)startScreenRecord:(void(^)(void))successRecord {RPScreenRecorder *recorder = [RPScreenRecorder sharedRecorder];recorder.microphoneEnabled = YES;// 開始[recorder startRecordingWithHandler:^(NSError * _Nullable error) {if (error) {// 無法開啟錄屏功能} else {successRecord();}}]; }

三. 停止錄屏

- (void)stopScreenRecord {if ([[RPScreenRecorder sharedRecorder] isRecording]) {[[RPScreenRecorder sharedRecorder] stopRecordingWithHandler:nil];} }

四. 帶存儲的停止錄屏

- (void)stopScreenRecoderWithSave {if ([RPScreenRecorder sharedRecorder].isRecording) {if (@available(iOS 14.0, *)) {NSDateFormatter *dateformat = [NSDateFormatter new];[dateformat setDateFormat:@"yyyy_MM_dd_HH_mm_ss"];//文件名NSString *fileName = [NSString stringWithFormat:@"record_screen_%@.mp4",[dateformat stringFromDate:[NSDate date]]];NSString *documentDirectory = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) firstObject];NSString *dirPath = [documentDirectory stringByAppendingPathComponent:@"record_screen_video"];if (![[NSFileManager defaultManager] fileExistsAtPath:dirPath]) {[[NSFileManager defaultManager] createDirectoryAtPath:dirPath withIntermediateDirectories:YES attributes:nil error:nil];}NSString *filePath = [dirPath stringByAppendingPathComponent:fileName];[[RPScreenRecorder sharedRecorder] stopRecordingWithOutputURL:[NSURL fileURLWithPath:filePath] completionHandler:^(NSError * _Nullable error) {dispatch_async(dispatch_get_main_queue(), ^{// 存儲視頻UISaveVideoAtPathToSavedPhotosAlbum(filePath, self, @selector(video:didFinishSavingWithError:contextInfo:), nil);});}];} else{[[RPScreenRecorder sharedRecorder] stopRecordingWithHandler:^(RPPreviewViewController *previewViewController, NSError * error){dispatch_async(dispatch_get_main_queue(), ^{if (!error && [previewViewController respondsToSelector:@selector(movieURL)]) {NSURL *videoURL = [previewViewController.movieURL copy];BOOL compatible = UIVideoAtPathIsCompatibleWithSavedPhotosAlbum([videoURL path]);if (videoURL && compatible) {NSString *moviePath = [videoURL path];if (UIVideoAtPathIsCompatibleWithSavedPhotosAlbum(moviePath)) {// 存儲視頻UISaveVideoAtPathToSavedPhotosAlbum(moviePath, self, @selector(video:didFinishSavingWithError:contextInfo:), nil);}} else {// 未成功保存視頻}} else {// 未成功保存視頻}});}];}} else {// 錄屏失敗} }

五. 取視頻操作 （帶壓縮操作）

//保存視頻完成之后的回調 - (void)video:(NSString *)videoPath didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo {if (error) {// 未成功保存視頻} else {//取出這個視頻PHFetchOptions *options = [[PHFetchOptions alloc] init];options.sortDescriptors = @[[NSSortDescriptor sortDescriptorWithKey:@"creationDate" ascending:YES]]; //按創建日期獲取PHFetchResult *assetsFetchResults = [PHAsset fetchAssetsWithOptions:options];PHAsset *phasset = [assetsFetchResults lastObject];if (phasset) {if (phasset.mediaType == PHAssetMediaTypeVideo) {//是視頻文件PHImageManager *manager = [PHImageManager defaultManager];[manager requestAVAssetForVideo:phasset options:nil resultHandler:^(AVAsset * _Nullable asset, AVAudioMix * _Nullable audioMix, NSDictionary * _Nullable info) {AVURLAsset *urlAsset = (AVURLAsset *)asset;NSURL *videoURL = urlAsset.URL;NSDate* date = [NSDate dateWithTimeIntervalSinceNow:0];NSTimeInterval time = [date timeIntervalSince1970] * 1000;NSString *timeString = [NSString stringWithFormat:@"%.0f", time];NSString *fileName = [NSString stringWithFormat:@"%@_%@",@"tmp",timeString];dispatch_async(dispatch_get_main_queue(), ^{NSString *outPath = [[NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) firstObject] stringByAppendingPathComponent:[fileName stringByAppendingString:@".mp4"]];AVURLAsset *asset = [AVURLAsset URLAssetWithURL:videoURL options:nil];AVAssetExportSession *session = [[AVAssetExportSession alloc] initWithAsset:asset presetName:AVAssetExportPresetMediumQuality];session.outputURL = [NSURL fileURLWithPath:outPath];session.outputFileType = AVFileTypeMPEG4; //壓縮格式[session exportAsynchronouslyWithCompletionHandler:^(void){ // 視頻壓縮工具if (session.status == AVAssetExportSessionStatusCompleted) {dispatch_async(dispatch_get_main_queue(), ^{//視頻已處理好可以對其進行操作NSData *data = [NSData dataWithContentsOfURL:[NSURL fileURLWithPath:outPath]];if (data) {// 可以上傳視頻了}});} else {dispatch_async(dispatch_get_main_queue(), ^{// 未成功保存視頻});}}];});}];} else {// 未成功保存視頻}} else {// 未成功保存視頻}} }

寫的很全了，基本能直接用了，有啥問題找我~

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