title: How to clear cache on a specific activity?
body: <p>I built an android application on the android studio to get the feedback of customers, and at the beginning of each activity, I put a voice over.. When the customer finishes the task, the application returns to the first screen (activity 1).</p>
  
  <p>I want to clear the cache of the application when it arrives at the last activity to avoid cache problems (lack of sound..etc)</p>
  
  <p>Thanks a lot</p>