I'm working on a tic tac toe app, and I have 9 buttons (3x3). I want to makea 2d array of all the buttons and put in all the solutions. How can I implement a 2d array?
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check this: stackoverflow.com/questions/25127700/…Dharmesh Kheni– Dharmesh Kheni2015-08-01 09:14:33 +00:00Commented Aug 1, 2015 at 9:14
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2 Answers
A 2D array is just an array of arrays.
// this will create an empty array
let buttons = [[UIButton]]()
or...
let buttons = [
[button1, button2, button3],
[button4, button5, button6],
[button7, button8, button9]
]
There are many ways to do this.
Comments
use this
class Utils{
static func arrayToArrays<T>(arr: Array<T>,size: Int)->Array<Array<T>>{
var result : Array<Array<T>> = Array<Array<T>>(count: size, repeatedValue: Array<T>());
var set = -1;
var expectedSize = (arr.count / size) + (arr.count % size);
for i in 0..<arr.count {
if i % expectedSize == 0{
set++;
}
result[set].append(arr[i]);
}
return result;
}
}
use:
var my1DArray = [1,2,3,4,5,6,7,8,9];
var my2DArray = Utils.arrayToArrays(my1DArray,size:3); //[[1,2,3],[4,5,6],[7,8,9]]
