title: Android: How to get absolute file path using base path and relative with ".."?
body: <p>I have seen a lot of similar questions here, but none of them addressed my situation:</p>
  
  <p>I created playlist file in some directory (let's say /Music/Playlists/playlist.m3u) on sdcard.
  Creating playlist with WMP I get files' paths like below:
  ../Music/my_music_file.mp3</p>
  
  <p>To sum up, I have:</p>
  
  <ul>
  <li>base path /Music/Playlists/</li>
  <li>relative path ../my_music_file.mp3</li>
  <li>I want to easily get path of /Music/my_music_file.mp3</li>
  </ul>
  
  <p>How can I easily get files absolute path from something like that?</p>