(Swift 3,4,5...) Unzip Selected Files from a Zip Archive

Demonstrates how to iterate over the files contained within a .zip and unzip specific files.

Chilkat Downloads for the Swift Programming Language MAC OS X (Cocoa) Objective-C/Swift Libs iOS Objective-C/Swift Libs

func chilkatTest() {
    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    let zip = CkoZip()!

    var success: Bool = zip.open("my_files.zip")
    if success != true {
        print("\(zip.lastErrorText!)")
        return
    }

    var unzipDir: String? = "/temp/unzipDir"

    var n: Int

    // Get the number of files and directories in the .zip
    n = zip.numEntries.intValue
    print("\(n)")

    var entry: CkoZipEntry?

    var i: Int
    for i = 0; i <= n - 1; i++ {

        entry = zip.getEntryByIndex(i)
        if entry!.isDirectory == false {
            // (the filename may include a path)
            print("\(entry!.fileName!)")

            // Your application may choose to unzip this entry
            // based on the filename.
            // If the entry should be unzipped, then call Extract(unzipDir)
            success = entry!.extract(unzipDir)
            if success != true {
                print("\(entry!.lastErrorText!)")
                return
            }

        }

        entry = nil
    }


}