how to get all files in a directory in ipad using objective c

Question

i need to get all files in a directory, including all sub directories and all files in each subdirectory. in objective C, i have try to use this method [[NSFileManager defaultManager] contentsOfDirectoryAtPath:filePath error:nil]

but it just give me an array of contents file in directory filePath, i cant get all files in the sub directory, can somebody help me??

thank you

Answer 1

- (void)scanPath:(NSString *) sPath {

    BOOL isDir;

    [[NSFileManager defaultManager] fileExistsAtPath:sPath isDirectory:&isDir];

    if(isDir)
    {
        NSArray *contentOfDirectory=[[NSFileManager defaultManager] contentsOfDirectoryAtPath:sPath error:NULL];

        int contentcount = [contentOfDirectory count];
        int i;
        for(i=0;i<contentcount;i++)
        {
            NSString *fileName = [contentOfDirectory objectAtIndex:i];
            NSString *path = [sPath stringByAppendingFormat:@"%@%@",@"/",fileName];


            if([[NSFileManager defaultManager] isDeletableFileAtPath:path])
            {   
                NSLog(path);
                [self scanPath:path];
            }
        }

    }
    else
    {
        NSString *msg=[NSString stringWithFormat:@"%@",sPath];
        NSLog(msg);
    }
}

you can call this function which will log all the files in the directory, hope this will help.

Answer 2

You want to use enumeratorAtURL:includingPropertiesForKeys:options:error: instead. It does a deep enumeration by default:

NSURL *myDirectoryURL = [[NSBundle mainBundle] URLForResource:@"Assets" withExtension:@""];
NSDirectoryEnumerator *directoryEnumerator = [[NSFileManager defaultManager] enumeratorAtURL:myDirectoryURL includingPropertiesForKeys:[NSArray array] options:0 errorHandler:^BOOL(NSURL *url, NSError *error) {
    // handle error
    return NO;
}];

NSString *fileOrDirectory = nil;
while ((fileOrDirectory = [directoryEnumerator nextObject])) {
    // use file or directory
}

The options argument lets you specify deep or shallow enumeration.

https://developer.apple.com/library/mac/#documentation/Cocoa/Reference/Foundation/Classes/NSFileManager_Class/Reference/Reference.html