2D empty array ( String and Bool) in swift

Question

I see some questions for multidimensional arrays and two dimensional arrays but none of them show how to correctly implement an empty array.

I have a todo list where I have a checkbox in the cell. Currently I'm storing the todo item in an array and the bool value in another array...My app is starting to get big so I'd prefer to have them both in one array.

How do I correctly do it?

var cellitemcontent = [String:Bool]()

if this is the correct way then I get errors at

cellitemcontent.append(item) //String: Bool does not have a member named append

So I'm assuming this is how to declare a Dictionary not a 2D array...

Also how would I store a 2D array? When it's 1D I store it like this:

NSUserDefaults.standardUserDefaults().setObject(cellitemcontent, forKey: "cellitemcontent") // Type '[(name: String, checked: Bool)]' does not conform to protocol 'AnyObject'

Leo Dabus · Accepted Answer · 2015-03-24 07:45:18Z

4

You can create an array of tuples as follow:

var cellitemcontent:[(name:String,checked:Bool)] = []

cellitemcontent.append(name: "Anything",checked: true)

cellitemcontent[0].name    // Anything
cellitemcontent[0].checked // true

If you need to store it using user defaults you can use a subarray instead of a tuple as follow:

var cellitemcontent:[[AnyObject]] = []

cellitemcontent.append(["Anything", true])

cellitemcontent[0][0] as String   // Anything
cellitemcontent[0][1] as Bool     // true

NSUserDefaults().setObject(cellitemcontent, forKey: "myArray")
let myLoadedArray = NSUserDefaults().arrayForKey("myArray") as? [[AnyObject]] ?? []

myLoadedArray[0][0] as String
myLoadedArray[0][1] as Bool

edited Mar 24, 2015 at 7:45

answered Mar 24, 2015 at 7:33

Leo Dabus

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3 Comments

Victor -------- Over a year ago

thank you, could you please help me with the updated question as well?

Victor -------- Over a year ago

god I'm a noob, now I can't get the cell.textLabel?.text = cellitemcontent(indexPath.row) to work...

Leo Dabus Over a year ago

cellitemcontent[indexPath.row][0] as String

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