How to addObject as NSMutableArray in NSMutableArray in swift

Question

I want to addObject of NSMutableArray into NSMutableArray so how can I achieve this in swift. and also retrieve it so please help me because right now I'm learning swift.

Indirectly say that I want 2D array means NSMutableArray of NSMutableArray.

//The below 2 lines iterative!
var dict:NSMutableDictionary? = NSMutableDictionary();
 linePointsArray!.addObject(dict!);

// and below 2 line is execute after complete the above iteration
 arrLine!.addObject(linePointsArray!);
 linePointArray!.removeAllObject();

//after that the above whole process is done iterative.

Rein rPavi · Accepted Answer · 2017-03-08 23:53:29Z

37

If I am not wrong you want to add an object of NSMutableArray in another NSMutableArray you can do it by following code

var myArray : NSMutableArray = ["Hello"]
var arrayOfArray : NSMutableArray = [myArray]

// Insert more arrays with insertObject or addObject

arrayOfArray.insertObject(myArray, atIndex: 0)
arrayOfArray.addObject(myArray)

//Retrive
var newArray:NSMutableArray = arrayOfArray[0] as NSMutableArray
println("\(newArray)")

For Swift 3:

var myArray : NSMutableArray = ["Hello"]
var arrayOfArray : NSMutableArray = [myArray]

// Insert more arrays with insertObject or addObject

arrayOfArray.insert(myArray, at: 0)
arrayOfArray.add(myArray)

//Retrive
var newArray:NSMutableArray = arrayOfArray[0] as! NSMutableArray
print("\(newArray)")

edited Mar 8, 2017 at 23:53

answered Oct 9, 2014 at 11:25

Rein rPavi

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6 Comments

JAY RAPARKA Over a year ago

my newArray returns with 0 count

JAY RAPARKA Over a year ago

in my newArray there is a collection of NSMutableDictionary but it returns count 0

Rein rPavi Over a year ago

means myArray has objects of dictionary, but newArray returns count 0

Rein rPavi Over a year ago

or else modify your question with the code so that we can play that in playground

JAY RAPARKA Over a year ago

now also i solve my problem with nil the array instead of remove all object (but why this happen that i don't know this code is propare work in objective c)

|

Kirsteins · Accepted Answer · 2014-10-09 10:22:14Z

8

Here is an example:

var mutableArray: NSMutableArray = []
var nestedMutableArray: NSMutableArray = []
mutableArray.addObject(nestedMutableArray)
var retrievedNestedMutableArray:NSMutableArray = mutableArray[0] as NSMutableArray

answered Oct 9, 2014 at 10:22

Kirsteins

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Comments

jvarela · Accepted Answer · 2019-12-06 18:16:44Z

0

var nameArray: NSMutableArray = ["Hello", "I", "am", "Smith"]
var arrayOfnameArray: NSMutableArray = [nameArray]

arrayOfArray.add(nameArray)

// Retrieve
var newArray:NSMutableArray = arrayOfnameArray[0] as! NSMutableArray
print("\(newArray)")

edited Dec 6, 2019 at 18:16

jvarela

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answered Feb 3, 2019 at 14:34

Varsha Shivhare

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1 Comment

user5283119 Over a year ago

Code answers are generally not accepted without an explanation of what this code actually achieves. So you'll need to add a bit more explanation on how this code can help people can solve their problem.

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