Is it possible to get own phone number?

StuartM · Jan 26, 2011

A search suggests that, subject to SIM security, this is possible in Java via:

B4X:

TelephonyManager tMgr =(TelephonyManager)mAppContext.getSystemService(Context.TELEPHONY_SERVICE);
  mPhoneNumber = tMgr.getLine1Number();

But is this possible in B4A?

It doesn't matter if it is unreliable, it would just be a "default" to avoid some app users having to type their own number into an app set-up screen.

(Obligatory, sorry 1st post apology goes here Got the trial last night and bought today so still learning.)

Brad · Oct 20, 2011

Shay said:
Hi

I am trying to get phone it own number in order to create some activation licensing, I am using these
ToastMessageShow(pi.GetSimSerialNumber,True)
ToastMessageShow(pi.GetDeviceId,True)
ToastMessageShow(pi.GetSubscriberId,True)
ToastMessageShow(pi.GetLine1Number,True)

only lines 1-3 are ok, the line that I need is giving blank result
I need full prove solution to get phone number (since I will base my entire licensing on it)

Shay,

My app uses the phone number for licensing and this works for me

B4X:

Dim Phonenum As PhoneId
dim sPhonenum as string
'
'
'
sPhonenum = phonenum.GetLine1Number

vb1992 · Oct 21, 2011

If anyone is looking at grabbing the current phone number
make sure you use:

Dim p As PhoneId
lblPhone.text = p.GetLine1Number

and not

Dim p as Phone

I believe the zip file in this thread has the above line

Bobi · Apr 26, 2013

doesn't work for me

Sub Globals
Dim p As PhoneId
End Sub
Sub Activity_Create(FirstTime As Boolean)
Msgbox(p.GetLine1Number,"")
End Sub

returns "". :sign0085:

AbbasMohammed · Aug 9, 2013

Dears,
kindly, i have try the above solution but i didnt get any result!!!!

Erel · Aug 9, 2013

Do you get an empty msgbox?

Which device are you using?

Bobi · Aug 9, 2013

AbbasMohammed said:
Dears,
kindly, i have try the above solution but i didnt get any result!!!!

Well, the real problem is that very few phone models really write the own number where OS expect. Don't ask which can do ! - So, apparently, we don't have solution.

Bobi · Aug 9, 2013

Erel said:
Do you get an empty msgbox?

Which device are you using?

I tested app on both HTC Wildfire S and Lenovo Ideatab A2107. The source of information what I gave to AbbasMohammed is very... trusted, unfortunately.

eps · Aug 9, 2013

Just to clarify :

You've used the following code :

Dim pId As PhoneId
Dim sPhonenum As String
sPhonenum = pId.GetLine1Number

Whilst I understand that you've compacted some of the code above, I think it would help to lay it out a little more stepwise, to ensure that it is behaving as you expect it. Sometimes some code elements can take umbrage at the wrong type being passed, but just set it to blank as opposed to telling you this.

and your manifest file has the following intent in it :

android.permission.READ_PHONE_STATE

I'll retry this on my current phone, which is an HTC One X.

eps · Aug 9, 2013

Confirmed, this works on my HTC One X.

AbbasMohammed · Aug 9, 2013

My phone is galaxy s2, and iam getting empty msgbox!!!

eps · Aug 9, 2013

AbbasMohammed said:
My phone is galaxy s2, and iam getting empty msgbox!!!

What code are you executing and what is in your manifest?

AbbasMohammed · Aug 9, 2013

Hi eps, kindly, my code is :

B4X:

Sub Globals
Dim myPhone As PhoneId
End Sub

Sub Activity_Create(FirstTime As Boolean)
Dim Phonenum As PhoneId
Dim sPhonenum As String
sPhonenum = Phonenum.GetSubscriberId
Msgbox(sPhonenum ,"")
End Sub

and the manifest is :

B4X:

AddManifestText(
<uses-sdk android:minSdkVersion="4" />
<supports-screens android:largeScreens="true"
    android:normalScreens="true"
    android:smallScreens="true"
    android:anyDensity="true"/>)
SetApplicationAttribute(android:icon, "@drawable/icon")
SetApplicationAttribute(android:label, "$LABEL$")

eps · Aug 9, 2013

So where is this : android.permission.READ_PHONE_STATE

In your manifest?

and why aren't you executing this code?

Dim pId As PhoneId
Dim sPhonenum As String
sPhonenum = pId.GetLine1Number

AbbasMohammed · Aug 9, 2013

sorry, i send the wrong code, i have used

B4X:

sPhonenum = pId.GetLine1Number

before and i didn't get any thing , regarding manifest file i didn't change it and i shall try your suggestion right now, where to add this line????
android.permission.READ_PHONE_STATE

AbbasMohammed · Aug 9, 2013

Dears :
manfist:

B4X:

AddManifestText(
<uses-sdk android:minSdkVersion="4" />
<supports-screens android:largeScreens="true"
    android:normalScreens="true"
    android:smallScreens="true"
    android:anyDensity="true"/>)
AddPermission (android.permission.READ_PHONE_STATE)
SetApplicationAttribute(android:icon, "@drawable/icon")
SetApplicationAttribute(android:label, "$LABEL$")

main:

B4X:

Sub Globals
Dim pId As PhoneId
Dim sPhonenum As String
End Sub

Sub Activity_Create(FirstTime As Boolean)
sPhonenum = pId.GetLine1Number
Msgbox(sPhonenum ,"")
End Sub

Result: Nothing!!!!

eps · Aug 10, 2013

Can you check the actual contents of your manifest file, not the items in the editor.

AbbasMohammed · Aug 10, 2013

i dont know how to do that???

bsnqt · Aug 10, 2013

AbbasMohammed: Go to your project (application) folder\Object\, it is the file "AndroidManifest.xml".

bsnqt · Aug 10, 2013

People have discussed that a lot, for your information, it is clear that not always getLine1Number() can return the mobile number. It depends a lot on network providers / SIM card. Sometimes, the number is not burned on your sim card. Thus, for whom who want to use (own) phone number instead of IMEI, retrieving the mobile number from phone is somehow not always reliable... Anyway, Erel is correct when he says so far it is the only way we can use to get the phone number. But in some devices (depending on network providers) it can return Null.

There is no guaranteed solution to this problem because the phone number is not physically stored on all SIM-cards, or broadcasted from the network to the phone. This is especially true in some countries which requires physical address verification, with number assignment only happening afterwards. Phone number assignment happens on the network - and can be changed without changing the SIM card or device (e.g. this is how porting is supported).

You can find alternative solutions from here:
http://stackoverflow.com/questions/2480288/get-phone-number-in-android-sdk
or here:
http://stackoverflow.com/questions/...ile-number-of-current-sim-card-in-real-device

For example, you can:
1) ask the user to enter his / her own phone number; or
2) you can use GetSimSerialNumber instead. Sim Serial number is always available and always unique;

eps · Aug 12, 2013

bsnqt said:
People have discussed that a lot, for your information, it is clear that not always getLine1Number() can return the mobile number. It depends a lot on network providers / SIM card. Sometimes, the number is not burned on your sim card. Thus, for whom who want to use (own) phone number instead of IMEI, retrieving the mobile number from phone is somehow not always reliable... Anyway, Erel is correct when he says so far it is the only way we can use to get the phone number. But in some devices (depending on network providers) it can return Null.

You can find alternative solutions from here:
http://stackoverflow.com/questions/2480288/get-phone-number-in-android-sdk
or here:
http://stackoverflow.com/questions/...ile-number-of-current-sim-card-in-real-device

For example, you can:
1) ask the user to enter his / her own phone number; or
2) you can use GetSimSerialNumber instead. Sim Serial number is always available and always unique;

Erm, for your alternative solutions, the first one, is in fact, the solution that we're using here...

EDIT : Actually both of them use the same solution..!

There may be a way to use a Reflection call to retrieve the phone number... Maybe use both as a fallback?

Is it possible to get own phone number?

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