Usage:

1. Drag and drop UIViewPager.h and UIViewPager.m files into your project.

2. Following modifications to your UIViewController. Look at WAScrollViewController for example usage. 

    //Add view pager.
    UIViewPager *viewPager = [[UIViewPager alloc] initWithFrame:CGRectMake(0, 0, self.view.bounds.size.width, 50)];
    [self.view addSubview:viewPager];
    viewPager.delegate = self;
    scrollView.delegate = viewPager;

3. Implement the delegate methods to provide titles and to handle taps on the titles.

#pragma mark UIViewPagerDelegate protocol implementation.

- (NSString *) titleForLabelForPage:(int)page {
    if (page == 0) {
        return @"All";
    }
    if (page == 1) {
        return @"Tips";
    }
    return nil;
}

- (void) switchToPageIndex:(int)page {
    [scrollView setContentOffset:CGPointMake(page * scrollView.bounds.size.width,0) animated:YES];
}