(Objective-C) Unzip all Files to a Single Directory (Ignoring Subdirectories in Zip)

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Demonstrates how to unzip all files into a single directory, ignoring the internal directory structure of the files in the .zip.

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#import <NSString.h>
#import <CkoFileAccess.h>
#import <CkoZip.h>

// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

NSString *outDir = @"c:/temp/testUnzipDir";

// Make sure our output directory exists.
CkoFileAccess *fac = [[CkoFileAccess alloc] init];
BOOL success = [fac DirEnsureExists: outDir];
if (success == NO) {
    NSLog(@"%@",fac.LastErrorText);
    return;
}

CkoZip *zip = [[CkoZip alloc] init];

// In this example, the xml_files.zip contains some files in the subdirectories "dir1" and also "dir2/dir3".

// a1.xml
// b1.xml
// c1.xml
// dir1/a2.xml
// dir1/c2.xml
// dir2/dir3/c3.xml

success = [zip OpenZip: @"qa_data/zips/xml_files.zip"];
if (success != YES) {
    NSLog(@"%@",zip.LastErrorText);
    return;
}

// Unzip all files into the directory c:/temp/testUnzipDir
int numUnzipped = [[zip UnzipInto: outDir] intValue];
if (numUnzipped < 0) {
    NSLog(@"%@",zip.LastErrorText);
    return;
}

NSLog(@"%@%d",@"Num unzipped = ",numUnzipped);

// After unzipping via UnzipInto, we have this:

// c:\temp\testUnzipDir\a1.xml
// c:\temp\testUnzipDir\b1.xml
// c:\temp\testUnzipDir\c1.xml
// c:\temp\testUnzipDir\a2.xml
// c:\temp\testUnzipDir\c2.xml
// c:\temp\testUnzipDir\c3.xml

[zip CloseZip];

NSLog(@"%@",@"Success.");