如何获取歌曲的实际时长，如“mm：ss”formate？

Question

assetURL = [item valueForProperty: MPMediaItemPropertyAssetURL]; 
NSLog(@"%@", assetURL); // asset url declares the song url and song path 

AVURLAsset* audioAsset = [AVURLAsset URLAssetWithURL:assetURL options:nil]; // declare the audio asset url 
CMTime audioDuration = audioAsset.duration; // get duration in cm time 
double audioDurationSeconds = CMTimeGetSeconds(audioDuration); // convert audio duration in double 

但是，这是一个问题，因为我的音频持续时间只有几秒钟，但我需要歌曲持续时间的“MM：SS”格式。

请帮帮我。提前致谢。

Answer 1

NSUInteger audioDurationSeconds = (long)CMTimeGetSeconds(audioDuration); 
NSUInteger minutes = floor(audioDurationSeconds % 3600/60); 
NSUInteger seconds = floor(audioDurationSeconds % 3600 % 60); 
NSString *time = [NSString stringWithFormat:@"%02ld:%02ld", minutes, seconds];