Downloading a file from url and saving to resources on iPhone

Question

Is it possible to download a file (i.e. an sqlite database file) from the Internet into your iPhone application programmatically for later use within the application?

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Answer 1

This can be useful for you.

NSString *stringURL = @"http://www.somewhere.com/thefile.png";
NSURL  *url = [NSURL URLWithString:stringURL];
NSData *urlData = [NSData dataWithContentsOfURL:url];
if ( urlData )
{
  NSArray       *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
  NSString  *documentsDirectory = [paths objectAtIndex:0];  

  NSString  *filePath = [NSString stringWithFormat:@"%@/%@", documentsDirectory,@"filename.png"];
  [urlData writeToFile:filePath automically:YES];
}

Note that this is a writeToFile method is synchronous, so it will halt/block your UI.