UIProgressBar为AvAudioPlayer播放进度

时间:2012-03-20 22:33:23

标签: iphone

在我的应用程序中播放audiofile,我想在UIToolbar上显示UIProgressBar,以便播放音频文件。任何人都可以帮我如何编码。

1 个答案:

答案 0 :(得分:4)

我使用计时器检查当前持续时间,然后每隔半秒更新一次进度条,如下所示:

tmrCounter = [NSTimer scheduledTimerWithTimeInterval:0.5f target:self selector:@selector(updateElapsedTime) userInfo:nil repeats:YES];  

-(void)updateElapsedTime{
    if (player) {
        [prgIndicator setProgress:[player currentTime] / [player duration]];
        [lblTime setText:[NSString stringWithFormat:@"%@", [self formatTime:[player currentTime]]]];
    }
}

-(NSString*)formatTime:(float)time{
    int minutes = time / 60;
    int seconds = (int)time % 60;
    return [NSString stringWithFormat:@"%@%d:%@%d", minutes / 10 ? [NSString stringWithFormat:@"%d", minutes / 10] : @"", minutes % 10, [NSString stringWithFormat:@"%d", seconds / 10], seconds % 10];
}

希望这有帮助!