Android Code Snippet SMS verification without permission (Android 8+)

Details - see
https://code.tutsplus.com/tutorials/android-o-phone-number-verification-with-sms-token--cms-29141

I attached relatively large sample. You can check it in emulator like described in the article.
Press button, copy token (in the log) to SMS message, send SMS.

Most of code (receiving SMS) was written by Erel.
"GetAppSpecificSmsToken"'s code is following

Dim javaobjectInstance As JavaObject   
    javaobjectInstance.InitializeContext   
    Dim stringSMSToken As String = javaobjectInstance.RunMethod ("GetAppSpecificSmsToken", Array (Rnd (10000000, 99999999)))

#If Java
    import android.app.PendingIntent;
    import android.content.Intent;
    import android.provider.Telephony;
    import android.telephony.SmsManager;

    public String GetAppSpecificSmsToken (int intPrivateCode) {
        SmsManager mgr = SmsManager.getDefault ();
        return mgr.createAppSpecificSmsToken (buildPendingIntent (intPrivateCode));    }
    private PendingIntent buildPendingIntent (int intPrivateCode) {
        return (PendingIntent.getActivity (this, intPrivateCode, new Intent (this, main.class), 0)); }
#End If

 

[Addo]

can this method work on android phones below 8 ?

 

[Semen Matusovskiy]

No. If you need for Android 6, 7, take a look

https://www.b4x.com/android/forum/threads/sms-retriever-api.102246/
https://developers.google.com/identity/sms-retriever/

Less comfortable and requires at least Google Play Services v.10.2+ But enough popular API.

 

[Cristian Achim]

Hello,
It does not work for targetSdkVersion 33.
Thank you!

Caused by: java.lang.IllegalArgumentException: b4a.example: Targeting S+ (version 31 and above) requires that one of FLAG_IMMUTABLE or FLAG_MUTABLE be specified when creating a PendingIntent.
Strongly consider using FLAG_IMMUTABLE, only use FLAG_MUTABLE if some functionality depends on the PendingIntent being mutable, e.g. if it needs to be used with inline replies or bubbles.

 

[DonManfred]

It does not work for targetSdkVersion 33.

update b4a and maybe SDK too.

 

[Cristian Achim]

update b4a and maybe SDK too.

I have the latest version of B4A (12.80 (64 bit)) and the latest version of the SDK. The problem occurs when I try to test on the phone, a Samsung Galaxy S24+ (Android 14).
It works ok on the emulator.
Thank you!

 

[OliverA]

Caused by: java.lang.IllegalArgumentException: b4a.example: Targeting S+ (version 31 and above) requires that one of FLAG_IMMUTABLE or FLAG_MUTABLE be specified when creating a PendingIntent.

Change

return (PendingIntent.getActivity (this, intPrivateCode, new Intent (this, main.class), 0)); }

to either:

return (PendingIntent.getActivity (this, intPrivateCode, new Intent (this, main.class), 0x02000000)); } //FLAG_MUTABLE

or

return (PendingIntent.getActivity (this, intPrivateCode, new Intent (this, main.class), 0x04000000)); } //FLAG_IMMUTABLE

Link: https://developer.android.com/reference/android/app/PendingIntent#FLAG_IMMUTABLE

 

[Cristian Achim]

I did this and it worked. I was going to write on the forum. Thank you very much!

I used:
return (PendingIntent.getActivity (this, intPrivateCode, new Intent (this, main.class), PendingIntent.FLAG_MUTABLE));