ios - 将 NSTimeInterval 设置为分钟 :Seconds:milliseconds

Question

谁能告诉我如何在这段代码中显示毫秒？

-(void)updateViewForPlayerInfo:(AVAudioPlayer*)p {
    countdownTimer = [NSTimer scheduledTimerWithTimeInterval:0.1 target:self selector:@selector(updateTimeLeft)userInfo:p repeats:YES];
}

- (void)updateTimeLeft {
    NSTimeInterval timeLeft = player.duration - player.currentTime;

    int min=timeLeft / 60;
    int sec=lroundf(timeLeft) % 60;

    durationLabel.text = [NSString stringWithFormat:@"-%02d:%02d",min,sec,nil];
}

Answer 1

[NSTimer scheduledTimerWithTimeInterval:0.0167 target:self selector:@selector(updateTimer) userInfo:nil repeats:YES];

-(void)updateTimer {
    countDownTotalTimer++;     
    TotalTime.text=[self timeFormatted:countDownTotalTimer];
}

- (NSString *)timeFormatted:(int)milli
{
    int millisec = ((milli) % 60)+39; 
    int sec = (milli / 60) % 60; 
    int min = milli / 3600; 

    return [NSString stringWithFormat:@"%02d:%02d:%02d",min, sec, millisec]; 
}

如果有人想要最大 60 毫秒，请编辑此行

int millisec = ((milli) % 60)+39;  

至

int millisec = ((milli) % 60);