title: touch event for whole android application
body: <p>I am developing a new app in which i had a great doubt whether is it possible or not?
  My doubt is </p>
  
  <p>We have to set one time listener for whole application. And we have to run a set of code for any touch event occurs in our application. <strong>For eg.</strong> there may be n activities in our app. But we have to set one time listener for all activities and run a set code when any touch occurs in any of n activities. I have tried a lot for it. Any ideas are welcome. Thanks in advance.</p>