-(void)applicationWillTerminate{

   NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
   NSString *libraryDirectory = [paths objectAtIndex:0];


    NSMutableArray *file = [[NSMutableArray alloc] init];
    if ([uploadImages count] > 0) {
        for (id obj in uploadImages) {
            NSMutableDictionary *dict = [[NSMutableDictionary alloc] init];
            NSString *mystring = [[obj valueForProperty:ALAssetPropertyURLs]objectForKey:@"public.jpeg" ];
            [dict setObject:mystring forKey:@"img"] ;
            if ([dict objectForKey:@"img"] == nil) {
                [dict setObject:[[obj valueForProperty:ALAssetPropertyURLs]objectForKey:@"public.jpeg" ] forKey:@"img"] ;
            }
            [file addObject:dict];
            [dict release];
        }

      if  ([file writeToFile:[libraryDirectory stringByAppendingPathComponent:@"uploadimages.plist"] atomically:YES])
      {
          NSLog(@"YES");
      }else
      {
          NSLog(@"files:%@",file);
      }
    }
}