How to addObject as NSMutableArray in NSMutableArray in swift

Question

我想通过addObject of NSMutableArray进入NSMutableArray，那么我怎样才能在swift中实现这一点。也请帮我找回它，因为现在我正在学习swift。

间接地说我想要2D数组意味着NSMutableArray的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.

Answer 1

如果我没记错的话，您想在另一个NSMutableArray中添加NSMutableArray的对象，您可以通过以下代码来实现

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)")

Swift 3的：

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)")

Answer 2

下面是一个示例：

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

Answer 3

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

arrayOfArray.add(nameArray)

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