_scrollViewing=[[[UIScrollView alloc]initWithFrame:CGRectMake(0 ,  0, width(_specialView),  height(_specialView))] autorelease];

    _scrollViewing.backgroundColor=[UIColor grayColor];

    _scrollViewing.pagingEnabled=YES;

    _scrollViewing.contentSize=CGSizeMake(_scrollViewing.frame.size.width * 3, _scrollViewing.frame.size.height);

    _scrollViewing.showsVerticalScrollIndicator=NO;

    _scrollViewing.showsHorizontalScrollIndicator=NO;

    _scrollViewing.delegate=self;

    _scrollViewing.userInteractionEnabled = YES;//

    _scrollViewing.tag = kDailyScrollViewTag;//

    _scrollViewing.pagingEnabled = YES;//

    [ _specialView   addSubview : _scrollViewing ];

 

 

_pageControl=[[[UIPageControl alloc]initWithFrame:CGRectMake(260 , 140 , 60 ,10)] autorelease];

    _pageControl.currentPageIndicatorTintColor = [UIColor whiteColor];

    _pageControl.numberOfPages=3;

    _pageControl.currentPage = 0;

    [_pageControl addTarget:self action:@selector(pageControlValueChanged:) forControlEvents:UIControlEventTouchUpInside];

    [_specialView addSubview:_pageControl];

 

//关键点

- (void)scrollViewDidScroll:(UIScrollView *)scrollView

{

    //PageControl的小点点随ScrollView滑动而变动

    CGFloat pagewidth = _scrollViewing.frame.size.width;

    int page = floor((_scrollViewing.contentOffset.x - pagewidth/(3+2))/pagewidth)+1;

    _pageControl.currentPage = page;

    

}

 

//分页控制器方法

-(void)pageControlValueChanged:(UIPageControl *)pageControl

{

    

    int currentPage=(int)pageControl.currentPage;

    _scrollViewing=(UIScrollView *)[self.view viewWithTag:kDailyScrollViewTag];

    if (currentPage>0)

    {

        [_scrollViewing setContentOffset:CGPointMake(currentPage*kIPhoneWidth, 0) animated:YES];

    }

    else

    {

        [_scrollViewing setContentOffset:CGPointMake(0, 0) animated:YES];

    }

    

}