(Swift 3,4,5...) Create a Zip Entirely in Memory

Demonstrates how to create a .zip from in-memory byte data and strings, and to write the .zip to an in-memory image.

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 crypt = CkoCrypt2()!
    let zip = CkoZip()!

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

    // Add the bytes 0x00 0x01 0x02 0x03 ... 0x0F as a file in the .zip
    var binFileData: NSData
    binFileData = crypt.decode("000102030405060708090A0B0C0D0E0F", encoding: "hex")
    var entry: CkoZipEntry? = zip.appendData("binaryData.dat", data: binFileData)
    entry = nil

    // Add the string "Hello World!" to the .zip
    entry = zip.appendString2("helloWorld.txt", str: "Hello World!", charset: "utf-8")
    entry = nil

    var zipFileInMemory: NSData
    zipFileInMemory = zip.writeToMemory()

    // We could save these files to a file, and it is a valid .zip
    let fac = CkoFileAccess()!
    success = fac.writeEntireFile("test.zip", fileData: zipFileInMemory)
    if success != true {
        print("\(fac.lastErrorText!)")
        return
    }

    print("Zip Created!")

}