How to zip file - iphone

Question

I want to zip file in my application. Can anybody tell me the code exactly.
I have used this code to unzip file:
I used: ZipArchive.h
self.fileManager = [NSFileManager defaultManager];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSLog(#"document directory path:%#",paths);
self.documentDirectory = [paths objectAtIndex:0];
NSString *filePath = [NSString stringWithFormat:#"%#/abc", self.documentDirectory];
NSLog(#"file path is:%#",filePath);
NSString *fileContent = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:#"data.zip"];
NSData *unzipData = [NSData dataWithContentsOfFile:fileContent];
[self.fileManager createFileAtPath:filePath contents:unzipData attributes:nil];
// here we go, unzipping code
ZipArchive *zipArchive = [[ZipArchive alloc] init];
if ([zipArchive UnzipOpenFile:filePath])
{
if ([zipArchive UnzipFileTo:self.documentDirectory overWrite:NO])
{
NSLog(#"Archive unzip success");
[self.fileManager removeItemAtPath:filePath error:NULL];
}
else
{
NSLog(#"Failure to unzip archive");
}
}
else
{
NSLog(#"Failure to open archive");
}
[zipArchive release];

Answer 1

I use SSZipArchive
NSError* error = nil;
BOOL ok = [SSZipArchive unzipFileAtPath:source_path toDestination:dest_path overwrite:YES password:nil error:&error];
DLog(#"unzip status: %i %#", (int)ok, error);
if(ok) {
[self performSelectorOnMainThread:#selector(unzipCompleted) withObject:nil waitUntilDone:NO];
} else {
[self performSelectorOnMainThread:#selector(unzipFailed:) withObject:error waitUntilDone:YES];
}

Answer 2

You can create zip file using zipArchive. ZipArchive Download the source code and add into your application folder.
Then in your header file add: #import "ZipArchive/ZipArchive.h"
To create a zip file is simple, just use the following code:
BOOL ret = [zip CreateZipFile2:l_zipfile];
ret = [zip addFileToZip:l_photo newname:objectForZip];
if( ![zip CloseZipFile2] )
{
}
[zip release];

Answer 3

you will get your answer is here . a c based library you will get by which you can zip and unzip your files programmatically
.http://stackoverflow.com/questions/1546541/how-can-we-unzip-a-file-in-objective-c

Answer 4

This code will work perfectly to zip a file.
ZipArchive *zip = [[ZipArchive alloc] init];
if(![zip UnzipOpenFile:fileToZipPath]) {
//open file is there
if ([zip CreateZipFile2:newZipFilePath overWrite:YES]) {
//zipped successfully
NSLog(#"Archive zip Success");
}
} else {
NSLog(#"Failure To Zip Archive");
}
}

Answer 5

I have used this to zip my documents folder.
You can separate out the part where you want to zip a file.
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *docDirectory = [paths objectAtIndex:0];
BOOL isDir = NO;
NSArray *subpaths;
NSFileManager *fileManager = [NSFileManager defaultManager];
if([fileManager fileExistsAtPath:docDirectory isDirectory:&isDir] && isDir)
{
subpaths = [fileManager subpathsAtPath:docDirectory];
}
NSString *archivePath = [docDirectory stringByAppendingString:#"/doc.zip"];
ZipArchive *archiver = [[ZipArchive alloc] init];
[archiver CreateZipFile2:archivePath];
for(NSString *path in subpaths)
{
NSString *longPath = [docDirectory stringByAppendingPathComponent:path];
if([fileManager fileExistsAtPath:longPath isDirectory:&isDir] && !isDir)
{
[archiver addFileToZip:longPath newname:path];
}
}
BOOL successCompressing = [archiver CloseZipFile2];
if(successCompressing)
{
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"Success"
message:#"Zipping Successful!!!"
delegate:nil
cancelButtonTitle:#"OK"
otherButtonTitles:nil];
[alert show];
[alert release];
}
else
{
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"Error"
message:#"Cannot zip Docs Folder"
delegate:nil
cancelButtonTitle:#"OK"
otherButtonTitles:nil];
[alert show];
[alert release];
}
[archiver release];