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 directory and i made them display in the tableview in the form of mutable array. It displays in the tableView as shown below,

.DS_Store
.localized
gazelle.pdf
Hamburger_sandwich.jpg
IITD TAJ Picture 028_jpg.jpg
iya_logo_final_b&w.jpg
manifesto09-eng.pdf
RSSReader.sql
SimpleURLConnections.zip
SQLTutorial

I just want to display the name of the files and i do not want to display the extensions. I know that it is possible to extract the extensions of a file in NSFileManager. But i do not know how. Please help me to make my table view look like this

.DS_Store
.localized
gazelle
Hamburger_sandwich
IITD TAJ Picture 028_jpg
iya_logo_final_b&w
manifesto09-eng
RSSReader
SimpleURLConnections
SQLTutorial

In the second stage i have a detailedViewController which takes displays the detailed view of the file like

1. file size
2. file type
3. if it is a image, it should open in imageView
4. if it is a song, it should play it

So i need to retrive the properties like filePath, fileType, fileSize.. of each files. Please guide me with a tutorial if possible. I too do not have any idea how to convert a mutableArray to a NSString and call the methods like stringByDeletingPathExtension. Please help me. I can even send my source code if needed. If possible, guide me with some example codes and tutorial.

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
    }

}