How to zip folders in iPhone SDK?

Question

In my Application,I am taking screenshots of image View and then I am saving those screen shots in document folder of the application.Now I want to Email all those images wi

Answer 1

I've used ZipArchive with success in the past.

It's pretty ligthweight and simple to use, supports password protection, multiple files inside a ZIP, as well as compress & decompress.

The basic usage is:

NSString *filepath = [[NSBundle mainBundle] pathForResource:@"ZipFileName" ofType:@"zip"];
ZipArchive *zipArchive = [[ZipArchive alloc] init];
[zipArchive UnzipOpenFile:filepath Password:@"xxxxxx"];
[zipArchive UnzipFileTo:{pathToDirectory} overWrite:YES];
[zipArchive UnzipCloseFile];
[zipArchive release];

This is for unzipping a folder/file. To zip folders is equally easy. To zip a file (or a fodler)

           BOOL ret = [zip CreateZipFile2:l_zipfile];
            // OR
            BOOL ret = [zip CreateZipFile2:l_zipfile Password:@"your password"]; //
            //if the Password is empty, will get the same effect as [zip CreateZipFile2:l_zipfile];

            ret = [zip addFileToZip:l_photo newname:@"photo.jpg"];
            if( ![zip CloseZipFile2] )
            {
                    // error handler here
            }
            [zip release];

I have heard about ObjectiveC-Zip also.