In this tutorial, I am going to demonstrate how you can zip and unzip files from within your iOS applications. We will be using a third party library called ZipArchive to achieve this. While there are a couple solutions out there to zip and unzip files, I feel that the ZipArchive library was the fastest and easiest way to get up and running.
Quick and easy way to inflate an archive using the fantastic ZipKit.
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- (void)inflateArchive {
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
NSString *archivePath = [self archivePath];
ZKFileArchive *archive = [ZKFileArchive archiveWithArchivePath:archivePath];
[archive setDelegate:self];
[self setArchiveSize:[[[archive centralDirectory] valueForKeyPath:@"@sum.uncompressedSize"] unsignedLongValue]];
[archive inflateToDiskUsingResourceFork:NO];
// do something with inflated archive.
// zipkit puts all inflated files in the same directory as the archive.
[self performSelectorOnMainThread:@selector(inflateComplete) withObject:nil waitUntilDone:NO];
[pool drain];
}
- (void)inflateComplete {
// do something after inflate finishes.
}
# pragma mark -
# pragma mark ZKArchive delegate methods
- (void)onZKArchive:(ZKArchive *) archive didUpdateBytesWritten:(unsigned long long)byteCount {
[self setArchiveProgress:[self archiveProgress] + byteCount];
if ([self archiveSize]
[[self progressView] setProgress:(float)[self archiveProgress] / (float)[self archiveSize]];
}
- (BOOL)zkDelegateWantsSizes {
return YES;
}<br />
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