Infinite Scroll

gistfile1.m

- (void)scrollViewDidScroll:(UIScrollView *)scrollView{	
	
	[_refreshHeaderView egoRefreshScrollViewDidScroll:scrollView];
    fetchingMoreMessages = NO;

    if(self.tableView.contentOffset.y<0){
        //it means table view is pulled down like refresh
        return;
    }
    else if(self.tableView.contentOffset.y >= (self.tableView.contentSize.height - self.tableView.bounds.size.height)) {
        fetchingMoreMessages = YES;
        [NSObject cancelPreviousPerformRequestsWithTarget:self selector:@selector(fetchOlderMessages) object:nil];
        [self performSelector:@selector(fetchOlderMessages) withObject:nil afterDelay:0];
    }