iOS获取本地音频文件(属性/信息)

本文实例为大家分享了ios获取本地音频文件的具体代码，供大家参考，具体内容如下

获取本地音频文件地址：

nsstring *songsdirectory=music_file_all;//沙盒地址
  nsbundle *songbundle=[nsbundle bundlewithpath:songsdirectory];
  nsstring *bundlepath=[songbundle resourcepath];
 
  nsarray *arrmp3=[nsbundle pathsforresourcesoftype:@"mp3" indirectory:bundlepath];
  for (nsstring *filepath in arrmp3) {
    [self.wmp3url addobject:filepath];
  }

解析音频文件属性：

-(void)mdefineupcontrol{ 
  nsstring *filepath = [self.wmp3url objectatindex: 0 ];//随便取一个，说明 
  //文件管理，取得文件属性 
 
  nsfilemanager *fm = [nsfilemanager defaultmanager]; 
  nsdictionary *dictatt = [fm attributesofitematpath:filepath error:nil]; 
   
 
  //取得音频数据   
 
  nsurl *fileurl=[nsurl fileurlwithpath:filepath]; 
  avurlasset *mp3asset=[avurlasset urlassetwithurl:fileurl options:nil]; 
  
   
  nsstring *singer;//歌手 
  nsstring *song;//歌曲名 
 
  uiimage *image;//图片  
 
  nsstring *albumname;//专辑名 
  nsstring *filesize;//文件大小 
  nsstring *voicestyle;//音质类型 
  nsstring *filestyle;//文件类型 
  nsstring *creatdate;//创建日期 
  nsstring *savepath; //存储路径 
   
  for (nsstring *format in [mp3asset availablemetadataformats]) { 
    for (avmetadataitem *metadataitem in [mp3asset metadataforformat:format]) { 
      if([metadataitem.commonkey isequaltostring:@"title"]){ 
        song = (nsstring *)metadataitem.value;//歌曲名 
       
      }else if ([metadataitem.commonkey isequaltostring:@"artist"]){ 
        singer = (nsstring *)metadataitem.value;//歌手 
      } 
      //      专辑名称 
      else if ([metadataitem.commonkey isequaltostring:@"albumname"]) 
      { 
        albumname = (nsstring *)metadataitem.value; 
      }else if ([metadataitem.commonkey isequaltostring:@"artwork"]) { 
        nsdictionary *dict=(nsdictionary *)metadataitem.value; 
        nsdata *data=[dict objectforkey:@"data"]; 
        image=[uiimage imagewithdata:data];//图片 
      } 
     
    } 
  } 
  savepath = filepath; 
  float tempflo = [[dictatt objectforkey:@"nsfilesize"] floatvalue]/(1024*1024); 
  filesize = [nsstring stringwithformat:@"%.2fmb",[[dictatt objectforkey:@"nsfilesize"] floatvalue]/(1024*1024)]; 
  nsstring *tempstrr = [nsstring stringwithformat:@"%@", [dictatt objectforkey:@"nsfilecreationdate"]] ; 
  creatdate = [tempstrr substringtoindex:19]; 
  filestyle = [filepath substringfromindex:[filepath length]-3]; 
  if(tempflo <= 2){ 
    voicestyle = @"普通"; 
  }else if(tempflo > 2 && tempflo <= 5){ 
    voicestyle = @"良好"; 
  }else if(tempflo > 5 && tempflo < 10){ 
    voicestyle = @"标准"; 
  }else if(tempflo > 10){ 
    voicestyle = @"高清"; 
  } 
   
   
  nsarray *temparr = [[nsarray alloc] initwithobjects:@"歌手:",@"歌曲名称:",@"专辑名称:",@"文件大小:",@"音质类型:",@"文件格式:",@"创建日期:",@"保存路径:", nil nil]; 
  nsarray *temparrinfo = [[nsarray alloc] initwithobjects:singer,song,albumname,filesize,voicestyle,filestyle,creatdate,savepath, nil nil]; 
  for(int i = 0;i < [temparr count]; i ++){ 
    nsstring *strtitle = [temparr objectatindex:i]; 
    uilabel *titlelab = [[uilabel alloc] initwithframe:cgrectmake(5, 5+i*30, 16*[strtitle length], 25)]; 
    [titlelab settext:strtitle]; 
    [titlelab settextcolor:[washaredfontstyle mgetsharedfontcolor]]; 
    [titlelab setfont:[uifont systemfontofsize:16]]; 
    [self.winfosv addsubview:titlelab]; 
     
    nsstring *strinfo = [temparrinfo objectatindex:i]; 
    uilabel *infolab = [[uilabel alloc] initwithframe:cgrectmake(titlelab.frame.origin.x+titlelab.bounds.size.width+5, 5+i*30, self.view.bounds.size.width-(titlelab.frame.origin.x+titlelab.bounds.size.width+5)-5, 25)]; 
    [infolab settext:strinfo]; 
    [infolab settextcolor:[washaredfontstyle mgetsharedfontcolor]]; 
    [infolab setfont:[uifont systemfontofsize:16]]; 
    [self.winfosv addsubview:infolab]; 
     
    if(i == [temparr count]-1){ 
      [infolab setframe:cgrectmake(titlelab.frame.origin.x+titlelab.bounds.size.width+5, 5+i*30, self.view.bounds.size.width-(titlelab.frame.origin.x+titlelab.bounds.size.width+5)-5, 30*4)]; 
      [infolab setlinebreakmode:nslinebreakbywordwrapping]; 
      [infolab setfont:[uifont systemfontofsize:12]]; 
      [infolab setnumberoflines:0]; 
    } 
     
    [self.winfosv setcontentsize:cgsizemake(self.view.bounds.size.width, i*45)]; 
     
  } 

   
} 

附图：

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