Android Question JSON Parser Problem

[FrankBerra]

Hi all
I am decoding JSON string sucesfully by using this code:

    DecodificatoreMappeJSON.Initialize(DatiMappe) 
    ListaDatiMappe = DecodificatoreMappeJSON.NextArray
    For Each coordinata As Map In ListaDatiMappe
      ....
    Next

But now i need to sort data by a specific key value (OrTick) inside the JSON string and the code is:

    DecodificatoreMappeJSON.Initialize(DatiMappe) 
    ListaDatiMappe = DecodificatoreMappeJSON.NextArray

    '----Code for Sorting
    Dim DecodificatoreSingoloValore1 As JSONParser
    Dim DecodificatoreSingoloValore2 As JSONParser
    Dim swapped As Boolean
    Dim ValoreTemporaneo As String
    swapped = True
    Do While swapped
        swapped = False
        For i = 1 To ListaDatiMappe.Size - 1
        DecodificatoreSingoloValore1.Initialize(ListaDatiMappe.Get(i-1))
        DecodificatoreSingoloValore2.Initialize(ListaDatiMappe.Get(i)) 
        Dim root1 As Map = DecodificatoreSingoloValore1.NextObject
        Dim root2 As Map = DecodificatoreSingoloValore2.NextObject 
        Dim OraIniziale1 As String = root1.Get("OrTick")
        Dim OraIniziale2 As String = root2.Get("OrTick")
       
       
       
            If OraIniziale1 < OraIniziale2 Then
               
                ValoreTemporaneo = ListaDatiMappe.Get(i)
                ListaDatiMappe.Set(i, ListaDatiMappe.Get(i-1))
                ListaDatiMappe.Set(i-1, ValoreTemporaneo)
               
                swapped = True
            End If
        Next
    Loop
    '-----End of Code for Sorting


    For Each coordinata As Map In ListaDatiMappe
      ....
    Next

Now it raises an error saying:

For Each coordinata As Map In ListaDatiMappe
java.lang.ClassCastException: java.lang.String cannot be cast to anywheresoftware.b4a.objects.collections.Map$MyMap
    at polka.app.main._jobdone(main.java:3193)
    at java.lang.reflect.Method.invoke(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:372)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:187)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:175)
    at anywheresoftware.b4a.keywords.Common$5.run(Common.java:981)
    at android.os.Handler.handleCallback(Handler.java:739)
    at android.os.Handler.dispatchMessage(Handler.java:95)
    at android.os.Looper.loop(Looper.java:135)
    at android.app.ActivityThread.main(ActivityThread.java:5254)
    at java.lang.reflect.Method.invoke(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:372)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)

Where i am wrong?

 

[Erel]

Put a breakpoint before this line and check the values in the list. At least one of the values is a string.