Android Question B4A libraries / Code for Dual Sim phones for sending SMS / Calls / Data using specific sim ?

[atulindore]

Dear Experts

In my app want to identify different sim operators in case phone is dual sim and want to use specific sim for sending SMS or using data services .

Pls suggest ..

 

[Erel]

Start with this code:

Sub TestSim
   Dim manager As JavaObject
   Dim context As JavaObject
   context.InitializeContext
   manager = manager.InitializeStatic("android.telephony.SubscriptionManager").RunMethod("from", Array(context))
   Dim infos As List = manager.RunMethod("getActiveSubscriptionInfoList", Null)
   For Each info As JavaObject In infos
     Log(info)
     'work with info
     'http://developer.android.com/reference/android/telephony/SubscriptionInfo.html
   Next
End Sub

Add this line to the manifest editor:

AddPermission(android.permission.READ_PHONE_STATE)

 

[atulindore]

context.InitializeContext giving error "Unknown member : InitializeContext"

i am using Java object lib v 1.25 and b4a v 3.8

 

[Erel]

It was added in a newer version of JavaObject. It should be available in the forum.

You might also need to change Array to Array As Object.

 

[atulindore]

Ok . will check this ..

 

[simpep]

Sorry.
I'm not experienced enough but where is the selection of sim for sending sms ?

thank you >simone

 

[Erel]

What is the output that you see when you run the code from the first post?

 

[Anser]

I would like to get the SIM Serial numbers of both the SIM cards in a Dual SIM phone. Is this possible using B4A ?

I tried using the Library https://www.b4x.com/android/forum/threads/simcard-also-dual-sim.51301/#post-321164
Unfortunately the lib gives IMEI numbers as SIM Serial Numbers and Line Numbers.

I tried the code posted by Erel in this thread. It is reading both the SIM's serial numbers in the column named iccId, unfortunately only the first 9 characters are displayed, the rest are shown as XXXXXXX. It is supposed to be 19 characters.

I mean this code

Sub TestSim
   Dim manager As JavaObject
   Dim context As JavaObject
   context.InitializeContext
   manager = manager.InitializeStatic("android.telephony.SubscriptionManager").RunMethod("from", Array(context))
   Dim infos As List = manager.RunMethod("getActiveSubscriptionInfoList", Null)
   For Each info As JavaObject In infos
     Log(info)
     'work with info
     'http://developer.android.com/reference/android/telephony/SubscriptionInfo.html
   Next
End Sub

I inserted the Log(info) into a list view. It is displaying 2 records, 1 for each SIM

 

[Erel]

Log(info.RunMethod("getDisplayName", Null))
Log(info.RunMethod("getNumber", Null))

 

[Anser]

Log(info.RunMethod("getDisplayName", Null))
Log(info.RunMethod("getNumber", Null))

It is working fine on Lolipop. Unfortunately when I tested on Android 4.4.2, I got the following error message.

java.lang.ClassNotFoundException:
android$telephony$SubscriptionManager

Does it means that this will work only on Lollipop or above ?
Is there any way that this can be made working on all android versions, atleast above Android ver 4

 

[DonManfred]

Search with Google to find out on which android the subscriptionmanager is added

 

[Anser]

Search with Google to find out on which android the subscriptionmanager is added

Added in API Level 22

 

[DonManfred]

Added in API Level 22

So you need Android 5.1+