AppDelegate.swift

  private func sort(result: FlutterResult, _ array: [Int]) {
      var arr = array
      for _ in 0...arr.count {
          for value in 1...arr.count - 1 {
              if arr[value-1] > arr[value] {
                  let largerValue = arr[value-1]
                  arr[value-1] = arr[value]
                  arr[value] = largerValue
              }
          }
      }

      result(arr)
  }