iOS开发项目- 基于WebSocket的聊天通讯（2）

@property (readonly, getter=isRecording) BOOL recording;//是否正在录音@property (readonly) NSDictionary<NSString *, id> *settings;//录音配置@property (readonly) NSURL *url;//录音文件存放URL@property (readonly) NSTimeInterval currentTime;//录音时长@property (getter=isMeteringEnabled) BOOL meteringEnabled;//是否监控声波

- (BOOL)prepareToRecord;//为录音准备缓冲区- (BOOL)record;//录音开始，暂停后调用会恢复录音- (BOOL)recordAtTime:(NSTimeInterval)time;//在指定时间后开始录音- (BOOL)recordForDuration:(NSTimeInterval) duration;//按指定时长录音- (BOOL)recordAtTime:(NSTimeInterval)time forDuration:(NSTimeInterval)duration;//上面2个的合体- (void)pause; //中断录音- (void)stop; //停止录音- (BOOL)deleteRecording;//删除录音，必须先停止录音再删除

//录音完成后调用- (void)audioRecorderDidFinishRecording:(AVAudioRecorder *)recorder successfully:(BOOL)flag;//录音编码发送错误时调用- (void)audioRecorderEncodeErrorDidOccur:(AVAudioRecorder *)recorder error:(NSError *)error;

#import <AVFoundation/AVFoundation.h>#define kRecordAudioFile @"myRecord.caf"@interface ViewController ()<AVAudioRecorderDelegate>{  NSString *dateName;}@property (weak, nonatomic) IBOutlet UITableView *table;@property (nonatomic,strong) AVAudioRecorder *audioRecorder;//音频录音机@property (nonatomic,strong) AVAudioPlayer *audioPlayer;//音频播放器，用于播放录音文件@property(nonatomic,strong) NSMutableArray *spaceData;@end@implementation ViewController#pragma mark - 私有方法/** * 设置音频会话 */-(void)setAudioSession{  AVAudioSession *audioSession=[AVAudioSession sharedInstance];  //设置为播放和录音状态，以便可以在录制完之后播放录音  [audioSession setCategory:AVAudioSessionCategoryPlayAndRecord error:nil];  [audioSession setActive:YES error:nil];}/** * 取得录音文件设置 * * @return 录音设置 */-(NSDictionary *)getAudioSetting{  NSMutableDictionary *dicM=[NSMutableDictionary dictionary];  //设置录音格式  [dicM setObject:@(kAudioFormatLinearPCM) forKey:AVFormatIDKey];  //设置录音采样率，8000是电话采样率，对于一般录音已经够了  [dicM setObject:@(8000) forKey:AVSampleRateKey];  //设置通道,这里采用单声道  [dicM setObject:@(1) forKey:AVNumberOfChannelsKey];  //每个采样点位数,分为8、16、24、32  [dicM setObject:@(8) forKey:AVLinearPCMBitDepthKey];  //是否使用浮点数采样  [dicM setObject:@(YES) forKey:AVLinearPCMIsFloatKey];  //....其他设置等  return dicM;}/** * 取得录音文件保存路径 * * @return 录音文件路径 */-(NSURL *)getPlayPath:(NSString *)title{  //  static int index = 0;  NSString *urlStr=[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];  urlStr=[urlStr stringByAppendingPathComponent:[NSString stringWithFormat:@"%@%@",title,kRecordAudioFile]];  NSLog(@"play file path:%@",urlStr);  NSURL *url=[NSURL fileURLWithPath:urlStr];  return url;}/** * 以日期为title，来保存录音 * * @return <#return value description#> */- (NSString *) convertDateFromString{  NSDate *date = [NSDate date];  //  NSLog(@"%@--askl",date);  //    NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];   //zzz表示时区，zzz可以删除，这样返回的日期字符将不包含时区信息。  [dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];  NSString *destDateString = [dateFormatter stringFromDate:date];  return destDateString;}

- (void)setClikeSpaceState:(NSString *)aState{  NSLog(@"点击语音---");    if([aState isEqualToString:@"begin"])  {    NSLog(@"begin---");    dateName = [self convertDateFromString];    //创建录音文件保存路径    NSURL *url=[self getPlayPath:dateName];    //创建录音格式设置    NSDictionary *setting=[self getAudioSetting];    //创建录音机    NSError *error=nil;    _audioRecorder=[[AVAudioRecorder alloc]initWithURL:url settings:setting error:&error];    _audioRecorder.delegate=self;    _audioRecorder.meteringEnabled=YES;//如果要监控声波则必须设置为YES    if (![self.audioRecorder isRecording]) {      [self.audioRecorder record];//首次使用应用时如果调用record方法会询问用户是否允许使用麦克风      //    self.timer.fireDate=[NSDate distantPast];      NSLog(@"111");    }  }else  {    NSLog(@"end---");    /** 停止录音*/    [self.audioRecorder stop];    /** 录音地址*/    NSURL *url = [self getPlayPath:dateName];    /** 加载数据*/    AVAudioPlayer  *audioPlayer1 = [[AVAudioPlayer alloc] initWithContentsOfURL:url error:nil];    Model *model = [[Model alloc]init];    model.duration = [NSString stringWithFormat:@"%.f",audioPlayer1.duration];    model.spacePath = dateName;    /** table 刷新*/    [self.spaceData addObject:model];    [self.table reloadData];    /** table 滚动到当前row*/    [self.table selectRowAtIndexPath:[NSIndexPath indexPathForRow:(self.spaceData.count - 1) inSection:0] animated:YES scrollPosition:UITableViewScrollPositionTop];  }}

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{  Model *model = self.spaceData[indexPath.row];    /** 播放录音*/  NSURL *url=[self getPlayPath:model.spacePath];  NSError *error=nil;  _audioPlayer=[[AVAudioPlayer alloc]initWithContentsOfURL:url error:&error];  _audioPlayer.numberOfLoops=0;  [_audioPlayer prepareToPlay];  [self.audioPlayer play];  NSLog(@"%.0f---aaaa",_audioPlayer.duration);  /** UIImage动画数组*/  NSMutableArray  *imgData = [NSMutableArray array];  for(int i=0;i<4;i++)  {    UIImage *aImage = [UIImage imageNamed:[NSString stringWithFormat:@"chat_receiver_audio_playing00%d",i]];    [imgData addObject:aImage];  }  TwoTableViewCell *twoCell = [self.table cellForRowAtIndexPath:indexPath];  /** 点击动画*/  [twoCell.speak setAnimationImages:imgData];  //    [twoCell.speak setAnimationRepeatCount:1];  [twoCell.speak setAnimationDuration:1];  [twoCell.speak startAnimating];  dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)([model.duration intValue] * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{    [twoCell.speak stopAnimating];  });}