How to access a Cocoa Touch Framework module on Playground Swift

Question

I created a Cocoa Touch Framework module on Xcode 6.0.1 with Class implemented in Swift and can matter in my View Controller and use it normally. The problem that I can’t use the same code in the Playground created in the same project.

In the Playground the module is recognized but the class contained in it is not.

My class is declared in JSON.Swift so:

public class JSON {
    // meu código Swift 
}

Answer 1

Try this on your Playground from Xcode 6.0.1

import Foundation
let jsonObject: [AnyObject] = [
  ["name": "João", "age": 20],
  ["name": "Pedro", "age": 45],
]
func JSONStringify(jsonObj: AnyObject) -> String {
  var e: NSError?
  let jsonData: NSData! = NSJSONSerialization.dataWithJSONObject(
    jsonObj,
    options: NSJSONWritingOptions(0),
    error: &e)
  if e != nil {
    return ""
  } else {
    return NSString(data: jsonData, encoding: NSUTF8StringEncoding)
  }
}
let jsonString = JSONStringify(jsonObject)
println(jsonString)

Works in the Mavericks

This way it works because you are delegating the work of serialization to class NSJSONSerialization of the standard library

Meaning, your Swift code is just a Wrapper.

Deserialization can also be done in an analogous way.

Answer 2

By default classes have visibility internal. It’s only necessary to make the class public and you get the access.

public class Foo {
    public init() {
    }
}