title: Restrict users to be able to use only single application in Android device
body: <p>how to Restrict users to be able to use only single application in Android device ?
  That is I write an  3rd party application which is launched after start up of Android phone  and users should not be allowed to access other applications in device.
  can this be possible in Android?
  can any one suggest me the possible ways in achieving this?</p>
  
  <p>Thanks in Advance,</p>