interactionController = [UIDocumentInteractionController interactionControllerWithURL:imageFile];
    interactionController.UTI = @"com.instagram.photo";
    interactionController.annotation = [NSDictionary dictionaryWithObject:[self commentForInstagram] forKey:@"InstagramCaption"];
    [interactionController presentOpenInMenuFromRect:self.view.frame inView:self.view animated:YES];

-(void)shareClick:(UIButton*)sender {
   /*some code*/
   CGRect rectForAppearing = [sender.superview convertRect:sender.frame toView:self.view];
   [interactionController presentOptionsMenuFromRect:rect inView:self.view animated:YES];
}

[interactionController presentOptionsMenuFromRect:self.view.bounds inView:self.view animated:YES];

-(void)openDocument:(UIView*)senderView {

   CGRect rectForAppearing = [senderView convertRect:senderView.frame toView:senderView];

   if (isIPAD)
     rectForAppearing =  CGRectMake(100, 100, rectForAppearing.size.width, rectForAppearing.size.height);

   [interactionController presentOptionsMenuFromRect:rect inView:self.view animated:YES];

- (void)shareClick:(UIButton*)sender
{
   /*some code*/
   [interactionController presentOptionsMenuFromRect:sender.bounds inView:sender animated:YES];
}