title: android deleting a file from internal storage
body: <p>I have created a file stored on internal storage from an activity. How can I delete this file from another activity? </p>
  
  <p>I'm thinking I'll have to get the file's directory (which I'm not sure how to) and delete it. I tried using </p>
  
  <pre><code>context.deleteFile(); 
  </code></pre>
  
  <p>but it won't work because I'm trying to call it from a non-static method.</p>