title: Android: get user phone number by SMS or Google Account
body: <p>In my Android app I'm trying to get the user's phone number. I tried the TelephonyManager solution but here in Europe 90% of the SIM cards have that field blank, so the function returns NULL.</p>
  
  <p>I think I could get the user's phone number searching for sent SMS or by querying the Google account. For the SMS method, I tried to load the content provider sms/sent, but the only address field I can extract is the phone number of the person the user sent the SMS to.</p>
  
  <p>For the Google account I have no idea on what to do.</p>