Question

I am using KTPhotoBrowser in order to display images parsed from a server.
Also, I am sharing the image by using Share kit. The sharing works fine when I am using the PhotoDataSource NSObject class in the KTPhotoBrowser.

However, if I use SDWebImageDataSource NSObject class to share the images by Share kit, it crashes when I press the action sheet button saying

Terminating app due to uncaught exception NSInvalidArgumentException, reason:

->[SDWebImageDataSource imageAtIndex:]: unrecognized selector sent to instance 0x8682e10

I am able to display the image in the scroll view.

I have used the following code in when I press the action sheet. In the KTPhotoScrollViewController class.

-(void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex {

  if (buttonIndex == actionSheet.cancelButtonIndex) return;

  NSDictionary *table = [[NSDictionary alloc] initWithObjectsAndKeys:@"SHKTwitter", @"Twitter", @"SHKFacebook", @"Facebook", @"SHKMail", SHKLocalizedString(@"Email", nil), nil];
  NSString *sharersName = [actionSheet buttonTitleAtIndex:buttonIndex];
  Class SharersClass = NSClassFromString([table objectForKey:sharersName]);

  [table release];

  NSLog(@"dataaaasrc-- %@",dataSource_);
  UIImage *image = [dataSource_ imageAtIndex:currentIndex_];
  SHKItem *item = [SHKItem image:image title:@"Look at this picture!"];

  [SharersClass performSelector:@selector(shareItem:) withObject:item];      
}

In the NSLog I got the following:

dataaaasrc--SDWebImageDataSource: 0x8682e10 //betwn lessthan and greater than symbols

-[SDWebImageDataSource imageAtIndex:]: unrecognized selector sent to instance 0x8682e10

*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[SDWebImageDataSource imageAtIndex:]: unrecognized selector sent to instance 0x8682e10'
*** First throw call stack:

Answer 1

I managed to make a “Save Image” button, the same place where you want your sharekit button by using some code from a sample that comes with KTPhotoBrowser.
(I looked in the TabBarSample with FlickrSample)

In SDWebImageDataSource.m I added this:

- (UIImage *)imageWithURLString:(NSString *)string {
    NSURL *url = [NSURL URLWithString:string];
    NSData *data = [NSData dataWithContentsOfURL:url];
    UIImage *image = [UIImage imageWithData:data];

    return image;
}

- (UIImage *)imageSourceAtIndex:(NSInteger)index {
    NSArray *imageUrls = [images_ objectAtIndex:index];
    NSString *url = [imageUrls objectAtIndex:FULL_SIZE_INDEX];

    return [self imageWithURLString:url];
}

In KTPhotoBrowserDataSource.h:

- (UIImage *)imageSourceAtIndex:(NSInteger)index;

Then you can make your call like this:

UIImage *image = [dataSource_ imageSourceAtIndex:currentIndex_];