(Objective-C) Transition from Zip.GetEntryByIndex to Zip.EntryAt

Provides instructions for replacing deprecated GetEntryByIndex method calls with EntryAt.

Note: This example requires Chilkat v11.0.0 or greater.

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#import <CkoZip.h>
#import <CkoZipEntry.h>

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

// ...
// ...
int index = 15;

// ------------------------------------------------------------------------
// The GetEntryByIndex method is deprecated:

CkoZipEntry *entryObj = [zip GetEntryByIndex: [NSNumber numberWithInt: index]];
if (zip.LastMethodSuccess == NO) {
    NSLog(@"%@",zip.LastErrorText);
    return;
}

// ...
// ...

// ------------------------------------------------------------------------
// Do the equivalent using EntryAt.
// Your application creates a new, empty ZipEntry object which is passed 
// in the last argument and filled upon success.

CkoZipEntry *ze = [[CkoZipEntry alloc] init];
BOOL success = [zip EntryAt: [NSNumber numberWithInt: index] entry: ze];
if (success == NO) {
    NSLog(@"%@",zip.LastErrorText);
    return;
}