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    <p>Correct me if I am wrong. You want to get the number of mp3 in your folder, but while a folder only contains folders and mp3 files, the mp3-count is for its parent folder (and if the parent itself only contains folders and mp3s, it counts for its grand-parent, etc.) right ?</p> <p>[manager enumeratorAtPath] is quite useful, but in this case it will certainly require you to maintain a stack to keep track of your browsed files.</p> <p>Recursion is bliss, here.</p> <pre><code>- (BOOL)isMp3File:(NSString*)file { return [file hasSuffix:@".mp3"]; } - (BOOL)isHiddenFile:(NSString*)file { return [file hasPrefix:@"."]; } - (void)parseForMp3:(NSMutableDictionary*)dic inPath:(NSString*)currentPath forFolder:(NSString*)folder { BOOL comboBreak = false; NSFileManager *fileManager = [NSFileManager defaultManager]; NSError* error; NSArray* files = [fileManager contentsOfDirectoryAtPath:currentPath error:&amp;error]; if (error) { //throw error or anything } for (NSString *file in files) { BOOL isDirectory = false; NSString *fullPath = [NSString stringWithFormat:@"%@/%@", currentPath, file]; [fileManager fileExistsAtPath:fullPath isDirectory:&amp;isDirectory]; comboBreak = comboBreak || (!isDirectory &amp;&amp; ![self isMp3File:file] &amp;&amp; ![self isHiddenFile:file]); if (comboBreak) break; } for (NSString *file in files) { BOOL isDirectory = false; NSString *fullPath = [NSString stringWithFormat:@"%@/%@", currentPath, file]; [fileManager fileExistsAtPath:fullPath isDirectory:&amp;isDirectory]; if (isDirectory) { if (!comboBreak) { [self parseForMp3:dic inPath:fullPath forFolder:folder]; } else { [self parseForMp3:dic inPath:fullPath forFolder:fullPath]; } } else if ([self isMp3File:file]) { NSNumber *oldValue = [dic valueForKey:folder]; oldValue = [NSNumber numberWithUnsignedInteger:[oldValue unsignedIntegerValue] + 1]; [dic setValue:oldValue forKey:folder]; } } } - (void)applicationDidFinishLaunching:(NSNotification *)aNotification { // Insert code here to initialize your application NSMutableDictionary *dic = [NSMutableDictionary dictionary]; [self parseForMp3:dic inPath:@"/Users/panosbaroudjian" forFolder:@"/Users/panosbaroudjian"]; NSLog(@"%@", dic); } </code></pre>
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    1. POHow to get all folders paths that contains music (mp3) in Cocoa?
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    1. POHow to get all folders paths that contains music (mp3) in Cocoa?
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    1. COThanks It works great and very fast! But there is one problem I can't figure out. It is scanning in alphabetical order, and if you have folder /Users/music/music2/music3 it works fine it displayss /Users/music . But if you have /Users/music and Music songs that start with letter 'A' or whatever is bigger 'm', the results will be /Users/music and /Users/music/music2 , but it should be only the parent directory that contains music, or subfolders of music. How I can fix it? Thanks a lot
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    2. COIndeed there's a little mistake. You have to check your file list once before browsing in to check for the comboBreak boolean. I'll edit that.
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    3. COThanks a lot Panos. I tried after your editing, but still the same issue. See what I got "/Users/Apple/Desktop/w/a/music" = 16; "/Users/Apple/Desktop/w/a/music/d" = 3; "/Users/Apple/Desktop/w/a/music/d/aa/a/asdfasdf/untitled folder/a" = 1; "/Users/Apple/Desktop/w/aaa" = 1; But it should be only only "/Users/Apple/Desktop/w" it works sometimes fine, if alphabetical order is right. I tried to fix it but I coudn't, I appreciate your help.
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