Android Question How to create a dynamic array for xChart?

Private MenuItems As List
MenuItems = m.Get("ListOfValues")

Private points(MenuItems.Size - 1) as Double

For i = 1 to MenuItems.Size - 1
    points(i) = MenuItems.Get(i)
Next
LineChart2.AddLineMultiplePoints(m.Get("Moment"), points, i Mod 90 = 0)

Cannot parse: (read only map) {
    Moment = "26/12/2019 00:47:00";
    v1 = 28;
    v2 = 19;
}

Dim MenuItems As List = m.Get("ListOfValues")
For i = 0 To MenuItems.Size - 1
    m = MenuItems.Get(i)  
    Dim Temp As List
    Temp.Initialize
    For i = 1 To X
      If Switch(i - 1).Checked Then Temp.Add(m.Get("v" & i))
    Next
   Dim arr(Temp.Size) As Double
   For ii = 0 To Temp.Size - 1
     arr(ii) = Temp.Get(ii)
  Next
    LineChart2.AddLineMultiplePoints(m.Get("Moment"), arr, i Mod 90 = 0)
Next