ios – 如何在本地录制后保存音频文件或在目标c中录制firebase？

概述我在我的应用程序中使用录音功能,但不知道在哪里保存此文件以及在哪里可以看到此文件？还告诉我如何在Firebase存储中存储此文件？ 我在我的应用中使用Firebase存储. 这是我的代码. UploadRecordedAudio.h中使用的代码： #import <UIKit/UIKit.h>#import <AVFoundation/AVFoundation.h>@import Fireba 我在我的应用程序中使用录音功能,但不知道在哪里保存此文件以及在哪里可以看到此文件？还告诉我如何在Firebase存储中存储此文件？
我在我的应用中使用Firebase存储.
这是我的代码.

UploadRecordedAudio.h中使用的代码：

#import <UIKit/UIKit.h>#import <AVFoundation/AVFoundation.h>@import FirebaseStorage;@import FirebaseAuth;@interface UploadRecordedAudio : UIVIEwController<AVAudioRecorderDelegate,AVAudioPlayerDelegate>- (IBAction)btnRecord:(ID)sender;@property (weak,nonatomic) IBOutlet UIbutton *record;@property (weak,nonatomic) IBOutlet UIbutton *stop;- (IBAction)btnStop:(ID)sender;@property (weak,nonatomic) IBOutlet UIbutton *play;- (IBAction)btnPlay:(ID)sender;@property (strong,nonatomic) Firstorage *storage;@property (strong,nonatomic) FirstorageReference *storageRef;@end

此代码用于UploadRecordedAudio.m：

- (voID)vIEwDIDLoad {    [super vIEwDIDLoad];    // disable Stop/Play button when application launches    [_play setEnabled:NO];    [_stop setEnabled:NO];    NSArray *pathComponents = [NSArray arrayWithObjects:[NSSearchPathForDirectorIEsInDomains(NSdocumentDirectory,NSUserDomainMask,YES)lastObject],@"MyAudioMemo.m4a",nil];    NSURL *outputfileURL = [NSURL fileURLWithPathComponents:pathComponents];    //NSLog(@"HERE: %@",pathComponents);    //Setup Audio Session    AVAudioSession *session = [AVAudioSession sharedInstance];    [session setcategory:AVAudioSessioncategoryPlayAndRecord error:nil];    //define the Recorder Settings...    NSMutableDictionary *recordSetting = [[NSMutableDictionary alloc]init];    [recordSetting setValue:[NSNumber numberWithInt:kAudioFormatMPEG4AAC] forKey:AVFormatIDKey];    [recordSetting setValue:[NSNumber numberWithfloat:44100.0] forKey:AVSampleRateKey];    [recordSetting setValue:[NSNumber numberWithInt:2] forKey:AVNumberOfChannelsKey];    //Initiate and Prepare the Recorder    recorder = [[AVAudioRecorder alloc]initWithURL:outputfileURL settings:recordSetting error:NulL];    recorder.delegate = self;    recorder.meteringEnabled = YES;    [recorder preparetoRecord];    NSData *aData = [NSData dataWithContentsOfURL:[NSURL fileURLWithPathComponents:pathComponents]];    NSArray *paths = NSSearchPathForDirectorIEsInDomains(NSdocumentDirectory,YES);    Nsstring *documentsDirectory = [paths objectAtIndex:0]; // Get documents folder    Nsstring *dataPath = [documentsDirectory stringByAppendingPathComponent:@"/MyFolder"];    NSLog(@"%@",dataPath);    [aData writetofile:dataPath atomically:YES];}- (IBAction)btnRecord:(ID)sender{    //Stop the audio player before Recording...    if (player.playing)    {        [player stop];    }    if (!recorder.recording)    {        AVAudioSession *session = [AVAudioSession sharedInstance];        [session setActive:YES error:nil];        //Start Recording        [recorder record];        [_record setTitle:@"Pause Recording" forState:UIControlStatenormal];    }    else    {        [recorder pause];        [_record setTitle:@"Resume Recording" forState:UIControlStatenormal];    }    [_stop setEnabled:YES];    [_play setEnabled:NO];}- (IBAction)btnPlay:(ID)sender{    if (!recorder.recording){        player = [[AVAudioPlayer alloc] initWithContentsOfURL:recorder.url error:nil];        [player setDelegate:self];        [player play];    }}- (voID) audioRecorderDIDFinishRecording:(AVAudioRecorder *)avrecorder successfully:(BOol)flag{    [_stop setEnabled:NO];    [_play setEnabled:YES];}- (voID) audioPlayerDIDFinishPlaying:(AVAudioPlayer *)player successfully:(BOol)flag{    UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"Done" message:@"Finish playing the recording!" preferredStyle:UIAlertControllerStyleAlert];    UIAlertAction *action = [UIAlertAction actionWithTitle:@"OK" style:UIAlertActionStyleDefault handler:nil];    [alert addAction:action];    [self presentVIEwController:alert animated:YES completion:nil];}- (IBAction)btnStop:(ID)sender{    [recorder stop];    AVAudioSession *audioSession = [AVAudioSession sharedInstance];    [audioSession setActive:NO error:nil];}@endPlease help me to solve this??? Thanks in advance.

解决方法 您可以在这样的方法中将文件存储在您的设备上

- (IBAction) record  {NSError *error;// Recording settingsNSMutableDictionary *settings = [NSMutableDictionary dictionary];[settings setValue: [NSNumber numberWithInt:kAudioFormatlinearPCM] forKey:AVFormatIDKey];[settings setValue: [NSNumber numberWithfloat:8000.0] forKey:AVSampleRateKey];[settings setValue: [NSNumber numberWithInt: 1] forKey:AVNumberOfChannelsKey];[settings setValue: [NSNumber numberWithInt:16] forKey:AVlinearPCMBitDepthKey];[settings setValue: [NSNumber numberWithBool:NO] forKey:AVlinearPCMIsBigEndianKey];[settings setValue: [NSNumber numberWithBool:NO] forKey:AVlinearPCMIsfloatKey];[settings setValue:  [NSNumber numberWithInt: AVAudioQualityMax] forKey:AVEncoderAudioQualityKey];NSArray *searchPaths =NSSearchPathForDirectorIEsInDomains(NSdocumentDirectory,YES);Nsstring *documentPath_ = [searchPaths objectAtIndex: 0];Nsstring *pathToSave = [documentPath_ stringByAppendingPathComponent:[self dateString]];// file URLNSURL *url = [NSURL fileURLWithPath:pathToSave];//filePATH];//Save recording path to preferencesNSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];[prefs setURL:url forKey:@"Test1"];[prefs synchronize];// Create recorderrecorder = [[AVAudioRecorder alloc] initWithURL:url settings:settings error:&error];[recorder preparetoRecord];[recorder record]; }

并像这样使用它

//Load recording path from preferences  NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];  temporaryRecfile = [prefs URLForKey:@"Test1"];   player = [[AVAudioPlayer alloc] initWithContentsOfURL:temporaryRecfile             error:nil];

像这样将音频文件转换为NSData

NSData *audioData = [[NSData alloc] initWithContentsOffile:filePath];

并像这样上传到firebase

// Obj-C  NSData *data = ...   FirstorageUploadTask *uploadTask = [riversRef putData:data Metadata:nil   completion:^(FirstorageMetadata *Metadata,NSError *error) {  if (error != nil) {// Uh-oh,an error occurred!   } else { // Succeed   }   }];

从firebase下载文件

// Create a reference to the file you want to download  FirstorageReference *islandRef = [storageRef child:@"images/island.jpg"]; // Create local filesystem URL NSURL *localURL = [NSURL URLWithString:@"path/to/image"]; // Download to the local filesystem FirstorageDownloadTask *downloadTask = [islandRef writetofile:localURL  completion:^(NSURL *URL,NSError *error){ if (error != nil) {    // Uh-oh,an error occurred! } else {     // Local file URL for "images/island.jpg" is returned  } }];

链接如何在obj C中的firebase上创建存储

更新：日期字符串方法

and added a new dateString method to VIEwController.m: - (Nsstring *) dateString    {// return a formatted string for a file nameNSDateFormatter *formatter = [[NSDateFormatter alloc] init];formatter.dateFormat = @"ddMMMYY_hhmmssa";return [[formatter stringFromDate:[NSDate date]] stringByAppendingString:@".aif"];  }

Firebase storage

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