title: iphone file system save file from url
body: <p>i want to save a photo file from a given url to the documents folder of my app without giving it a filename just the url and it saves to disk, is that possible ?</p>
  
  <p>or do i have to get the data from the url and then parse it as UIImage then save that image to disk and give it a filename ?</p>
  
  <p>if there is no direct way, how can you extract the filename form the url ( is there any built in method that can do that ) ?</p>
  
  <p>thanks, and appreciate your help!</p>