title: How to check if a file exists in a directory in sd card
body: <p>I want to check whether a given file exists in android sd card. I am trying it out with creating a file using the absolute path and checking with <code>file.exists()</code> but its not working. The URL for the file is  <code>"file:///mnt/sdcard/book1/page2.html"</code> and the file does exist. But somehow <code>file.exists()</code> isn't showing the same.</p>