title: disable external storage on Android device
body: <p>There is a situation when user wants to make possible to lock/disable external storage, in other words make it not mountable until this option enabled after password entered. </p>
  
  <p>For instance when somebody's tablet has been stolen or lost when screen wasn't locked. </p>
  
  <p>Even if data encrypted it will be still observable on the non-locked device, moreover data will appear as decrypted if device screen remains locked and device plugged to pc. PC will recognize external storage with the data decrypted on it.</p>
  
  <p>Is the any way disable external storage programmatic?</p>