Android Question Check if a phone number is on Whatsapp

[AHilberink]

Hi,

Is there a way to check if a phone number is on WhatsApp?

Kind regards,
André

 

[Plutoam]

Hi
Use This Sub in ContactUtils Class

Public Sub FindAllContactsWithWhatsapp As List
    Return FindContactsIdFromData("vnd.android.cursor.item/vnd.com.whatsapp.profile", "data1", "null", "<>", True, False)
End Sub

Class : https://www.b4x.com/android/forum/t...ad-write-access-to-the-stored-contacts.30824/