iPhone - file properties

Question

i m creating an application which makes the iphone work as a pendrive for easy file sharing purpose.

In the first stage, i have some files(png, pdf, jpg, zip) in a direc

Answer 1

This should work:) This will get all files in a directory in a NSString *parentDirectory, get its size, if image do something otherwise it assumes is a sound file

NSFileManager *fm = [NSFileManager defaultManager];
NSError *error = nil;
NSArray *filePaths = [fm contentsOfDirectoryAtPath:parentDirectory error:&error];
if (error) {
    NSLog(@"%@", [error localizedDescription]);
    error = nil;
}   
for (NSString *filePath in filePaths) {
    //filename without extension
    NSString *fileWithoutExtension = [[filePath lastPathComponent] stringByDeletingPathExtension];

    //file size
    unsigned long long s = [[fm attributesOfItemAtPath:[parentDirectory stringByAppendingPathComponent:filePath] 
                                  error:NULL] fileSize];

    UIImage *image = [UIImage imageNamed:[parentDirectory stringByAppendingPathComponent:filePath];];
    //if image...
    if(image){
        //show it here
    }
    else{
        //otherwise it should be music then, play it using AVFoundation or AudioToolBox
    }

}