check if file exists in project folder
<p>My project has this structure:</p>

<pre><code>my_project
 my_project
  AppDelegate.m
  AppDelegate.h
  ...
  Audio_folder
   my_audio.mp3
</code></pre>

<p>So I want to check if an audio file exists or not in the <code>Audio_folder</code>.
I can do it with the full path</p>

<pre><code>BOOL fileExists = [[NSFileManager defaultManager] fileExistsAtPath:@"/Users/user/Desktop/my_project/my_project/Audio_folder/my_audio.mp3"];
</code></pre>

<p>but how can I achieve it with something like</p>

<pre><code>BOOL fileExists = [[NSFileManager defaultManager] fileExistsAtPath:@"Audio/my_audio.mp3"];
</code></pre>

<p>?</p>