Question

I am developing an application. In it I want to find out the number of folders in the document directory and find the XML file in each folder. Please tell me how to find out the folders’ information in the the document directory.

Answer 1

If I understand you correctly you want to find all xml files in all folders in the documents directory?

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = ([paths count] > 0) ? [paths objectAtIndex:0] : nil;

NSArray *contents = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:documentsDirectory
                                                                        error:nil];
for (NSString *path in contents) {
    BOOL isDir;
    if ([[NSFileManager defaultManager] fileExistsAtPath:path
                                             isDirectory:&isDir]
        && isDir) {
        // directory in documents directory
        NSArray *dirContents = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:path
                                                                                   error:nil];
        for (NSString *dirContentsPath in dirContents) {
            if ([[dirContentsPath pathExtension] isEqualToString:@"xml"]) {
                NSLog(@"xml found: %@", dirContentsPath);
            }
        }
    }
}

You might want to add recursion for deeper directories.