Android Question JavaObject Question

[hzchrisfang]

I had read a lot of threads about JavaObject library and Reflection library, and I learned how to access TelephoneyManager and SmsManager API. Still, I had no idea how to use other APIs just like CellSignalStrength (http://android.toolib.net/reference/android/telephony/CellSignalStrength.html) through those librarys.

I will be very appreciated if someone could give me an exact example.

Sorry for my poor English.

 

[Erel]

This class by itself is not useful.

You can get this data with this library: http://www.b4x.com/android/forum/threads/phonestatelistener.12377/

 

[hzchrisfang]

This class by itself is not useful.

You can get this data with this library: http://www.b4x.com/android/forum/threads/phonestatelistener.12377/

Hello Erel, Thanks for your reply.

I had learned about PhoneStateListener library and I can get the Cellinfo and SignalStrength of the current cell through this library successfully, but I need more data about NeighboringCellInfo , this seems not included in the library.

I use TelephonyManager.getAllcellInfo by JavaObject , code:

Oblist = Obj.RunMethodJO("getAllCellInfo", Null)
Dim ObjPri As JavaObject = Oblist.Get(0)
Dim ObjPriInfo As JavaObject = ObjPri.RunMethod("getCellIdentity",Null)
Dim ObjPriSgn As JavaObject = ObjPri.RunMethod("getCellSignalStrength",Null)

In this way, I hope to get information of all cells. But in fact, I got the result about CellIdentity and CellSignalStrength, CellIdentity result is correct, but the value of signalstrength is incorrect, the log is :

(CellSignalStrengthCdma) CellSignalStrengthCdma: cdmaDbm=2147483647 cdmaEcio=2147483647 evdoDbm=0 evdoEcio=0 evdoSnr=0

In this mean,I think I can not get the signalstrength value of neighbour cell by TelephonyManager API, so I want to test other similar APIs.

Can you give me some advice about this question?

 

[Erel]

2147483647 is the maximum value for int values. It probably represents an unknown value.

 

[hzchrisfang]

2147483647 is the maximum value for int values. It probably represents an unknown value.

But when use PSL.CDMAdbm and PSL.EVDOdbm in PhoneStateListener library I can get the correct value of cell signal, so what has gone wrong probably in my case?

 

[Erel]

How did you get these values? How is Obj created?

 

[hzchrisfang]

How did you get these values? How is Obj created?

You mean the incorrect values in #3 or correct values in #5?

 

[Erel]

The code in post #3.

 

[hzchrisfang]

The code in post #3.

my code:

    Dim Oblist As List
    Dim Obj As JavaObject = GetContext.RunMethod("getSystemService", Array("phone"))
    Oblist = Obj.RunMethodJO("getAllCellInfo", Null)
    Dim ObjPri As JavaObject = Oblist.Get(0)
    Dim ObjPriInfo As JavaObject = ObjPri.RunMethod("getCellIdentity",Null)
    Dim ObjPriSgn As JavaObject = ObjPri.RunMethod("getCellSignalStrength",Null)
    Log(ObjPriSgn)

 

[Erel]

What is the size of Oblist? Maybe there is more information in the list.

 

[hzchrisfang]

What is the size of Oblist? Maybe there is more information in the list.

If device received signal from several cells, the size of Oblist is the counts of those cells, Oblist(0) contain the information of current cell, include CellIdentity and CellSignalStrength. If size>1, for example, size=2, then Oblist(1) contain the information of a neighbour cells.