gistfile1.m

  SHKItem *item = [[[SHKItem alloc] init] autorelease];
  item.shareType = SHKShareTypeText;
  item.contextBlock = ^(NSString *selectedSharer, id item) {
    if ([selectedSharer isEqualToString:@"SHKTwitter"]) {
      [item setShareType:SHKShareTypeURL];
      [item setURL:[NSURL URLWithString:@"http://www.google.com"]];
      [item setTitle:@"Tweeting this! #HashTagsAreCoolForKids"];
    } else {
      [item setMessage:@"This is for everything else http://www.google.com"];
    }

  };