语音（LCVoiceHudDemo)

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    
    
    voice = [[LCVoice alloc] init];
   
    UIButton * button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
    button.frame = CGRectMake(self.view.frame.size.width/2-50, self.view.frame.size.height-100, 100, 100);
    [button setTitle:@"录制" forState:UIControlStateNormal];
    [button addTarget:self action:@selector(recordStart) forControlEvents:UIControlEventTouchDown];
    [button addTarget:self action:@selector(recordEnd) forControlEvents:UIControlEventTouchUpInside];
    [button addTarget:self action:@selector(recordCancel) forControlEvents:UIControlEventTouchUpOutside];
    [self.view addSubview:button];
}
-(void) recordStart
{
    [voice startRecordWithPath:[NSString stringWithFormat:@"%@/Documents/MySound.caf", NSHomeDirectory()]];
}

-(void) recordEnd
{
    [voice stopRecordWithCompletionBlock:^{
        
        if (voice.recordTime > 0.0f) {
            UIAlertView * alert = [[UIAlertView alloc] initWithTitle:nil message:[NSString stringWithFormat:@"\nrecord finish ! \npath:%@ \nduration:%f",voice.recordPath,voice.recordTime] delegate:nil cancelButtonTitle:@"ok" otherButtonTitles:nil, nil];
            [alert show];
         }
        
    }];
}

-(void) recordCancel
{
    [voice cancelled];
    
    UIAlertView * alert = [[UIAlertView alloc] initWithTitle:nil message:@"取消了" delegate:nil cancelButtonTitle:@"ok" otherButtonTitles:nil, nil];
    [alert show];
}