Android Question JSON problem...

[Spectre]

Hi...
This is part of the code for the application and calculate route ... I get an error on this line

ResponseRoute = JSON.NextObject


Error:

java.lang.RuntimeException: JSON Object expected.
at anywheresoftware.b4a.objects.collections.JSONParser.NextObject(JSONParser.java:47)
at uk.co.martinpearman.b4a.osmdroiddemo.main._jobdone(main.java:545)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:173)
at anywheresoftware.b4a.keywords.Common$5.run(Common.java:957)
at android.os.Handler.handleCallback(Handler.java:725)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5306)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869)
at dalvik.system.NativeStart.main(Native Method)

Sub Button1_Click
    Dim STARTING_POINT_LAT,STARTING_POINT_LON,END_POINT_LAT,END_POINT_LON As Double
    Dim job1, job2, job3 As HttpJob
   
    Dim Richiesta As String
   
    STARTING_POINT_LAT=46.00000
    STARTING_POINT_LON=11.00000
    END_POINT_LAT=45.00000
    END_POINT_LON=9.00000

    Richiesta="http://maps.googleapis.com/maps/api/directions/xml?origin=" & STARTING_POINT_LAT &"," & STARTING_POINT_LON & "&destination=" & END_POINT_LAT & "," & END_POINT_LON & "&sensor=false"
    job1.Initialize("Job1", Me)
    job1.Download(Richiesta)
   
    ProgressDialogShow("Calculation route...")


End Sub

Sub JobDone (Job As HttpJob)   

    If Job.Success = True Then
        Log(Job.GetString)
        Dim tw As TextWriter
        If File.Exists(File.DirDefaultExternal, "Route.json") Then
            File.Delete(File.DirDefaultExternal, "Route.json")
        End If
        tw.Initialize(File.OpenOutput( File.DirDefaultExternal,"Route.json", False))   
        tw.Write(Job.GetString)
        tw.Close
        ToastMessageShow("Succes create Route, position file" & File.DirDefaultExternal & "Name: Route.json",True)
       
        Dim ResponseString As String
        Dim ResponseRoute As Map
       
        ResponseRoute.Initialize
        ResponseString=File.ReadString(File.DirDefaultExternal, "Route.json")
                   
        Dim JSON As JSONParser
        JSON.Initialize(ResponseString)
       
        ResponseRoute = JSON.NextObject
       
        If ResponseRoute.Get("status")="OK" Then
           code for parsing....

 

[DonManfred]

what does

 Log(Job.GetString)

output to the log?

 

[Spectre]

what does

 Log(Job.GetString)

output to the log?

HI!
I needed to see the output of the JSON ... I can also take it off ...

 

[Spectre]

ops...

Richiesta="http://maps.googleapis.com/maps/api/directions/xml?origin="

I corrected:

Richiesta="http://maps.googleapis.com/maps/api/directions/json?origin="

Now it seems to work ...

But I do not understand why you get too few points for the route.

 

[Spectre]

okay solved ... thanks to everyone ...

 

[Spectre]

okay solved ... thanks to everyone ...