blocks|key|1394635|text|您将希望使用UIScrollView，然后将UIPageControl定位在其上。然后将每个页面放入滚动视图，并为其打开分页。这样，每次“轻拍”都会将滚动视图上移一页。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1394636|现在，将视图控制器指定为滚动视图的代理，观察scrollViewDidEndScrollAnimation，并使用contentOffset确定哪个页面是当前页面。|1394637|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

You'll want to use a UIScrollView, and then, as a sibling, position the UIPageControl over it. Then put each of your pages into the scroll view and turn paging on for it. This way each 'flick' will move the scroll view one page over.

Now, assign your view controller to be the delegate of the scroll view, and watch for scrollViewDidEndScrollAnimation, and use the contentOffset to determine which page is current.

blocks|key|1179152|text|在这里看我的答案：Is+UIPageControl+Useless+By+Itself?|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1179153|用于封装UIPageControl和UIScrollView的可重用类。|1179154|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/1103915/is-uipagecontrol-useless-by-itself/4014230#4014230^0|9|Z|0|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@$A|O|B|P|1|Q]]|C|$]]|$1|D|3|E|5|6|7|R|8|@]|9|@]|C|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|C|$]]]|G|$H|$5|I|J|K|C|$L|M]]]]

See my answer here: <a href="https://stackoverflow.com/questions/1103915/is-uipagecontrol-useless-by-itself/4014230#4014230">Is UIPageControl Useless By Itself?</a> 

for a reusable class encapsulating the UIPageControl and UIScrollView.

blocks|key|1394704|text|基于Ben+Gottlieb相当出色的正确答案，我得到了我想要的。下面是我用来实现它的代码：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1394705|.h|1394706|@interface+MyViewController+:+UIViewController+<UIScrollViewDelegate>+{
}
@property+(nonatomic,+retain)+UIPageControl+*helpPageCon;|code-block|syntax|javascript|1394707|.m|1394708|@synthesize+helpPageCon;

-+(void)scrollViewDidScroll:(UIScrollView+*)scrollView{
++++CGRect+frame+=+[[UIScreen+mainScreen]+applicationFrame];
++++float+roundedValue+=+round(scrollView.contentOffset.x+/+frame.size.width);
++++self.helpPageCon.currentPage+=+roundedValue;++++
}

-+(void)viewDidLoad
{
++++UIScrollView+*scrollView+=+[[[UIScrollView+alloc]+initWithFrame:CGRectMake(0,+0,+frame.size.width,+frame.size.height-50)]+autorelease];
++++scrollView.contentSize+=+CGSizeMake(frame.size.width*5,+frame.size.height-50);
++++[scrollView+setPagingEnabled:YES];
++++scrollView.showsHorizontalScrollIndicator+=+NO;
++++scrollView.delegate+=+self;
++++[self.view+addSubview:scrollView];

++++CGRect+frame+=+[[UIScreen+mainScreen]+applicationFrame];
++++self.helpPageCon+=+[[[UIPageControl+alloc]+initWithFrame:CGRectMake(0,+0,+frame.size.width,+50)]+autorelease];
++++self.helpPageCon.center+=+CGPointMake(frame.size.width/2,+frame.size.height-75);
++++self.helpPageCon.numberOfPages+=+5;
++++[self.view+addSubview:self.helpPageCon];
}
-+(void)dealloc
{
++++[super+dealloc];
++++[helpPageCon+release];
}|1394709|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Q|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

Based on Ben Gottlieb's quite excellently correct answer there, I got what I wanted. Here's the code I used to accomplish it:

.h

<pre><code>@interface MyViewController : UIViewController &lt;UIScrollViewDelegate&gt; {
}
@property (nonatomic, retain) UIPageControl *helpPageCon;
</code></pre>

.m

<pre><code>@synthesize helpPageCon;

- (void)scrollViewDidScroll:(UIScrollView *)scrollView{
 CGRect frame = [[UIScreen mainScreen] applicationFrame];
 float roundedValue = round(scrollView.contentOffset.x / frame.size.width);
 self.helpPageCon.currentPage = roundedValue; 
}

- (void)viewDidLoad
{
 UIScrollView *scrollView = [[[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, frame.size.width, frame.size.height-50)] autorelease];
 scrollView.contentSize = CGSizeMake(frame.size.width*5, frame.size.height-50);
 [scrollView setPagingEnabled:YES];
 scrollView.showsHorizontalScrollIndicator = NO;
 scrollView.delegate = self;
 [self.view addSubview:scrollView];

 CGRect frame = [[UIScreen mainScreen] applicationFrame];
 self.helpPageCon = [[[UIPageControl alloc] initWithFrame:CGRectMake(0, 0, frame.size.width, 50)] autorelease];
 self.helpPageCon.center = CGPointMake(frame.size.width/2, frame.size.height-75);
 self.helpPageCon.numberOfPages = 5;
 [self.view addSubview:self.helpPageCon];
}
- (void)dealloc
{
 [super dealloc];
 [helpPageCon release];
}
</code></pre>

blocks|key|1179271|text|只需在水平滚动视图中依次添加3个视图，并在scrollview中启用分页，并在scrollView下方添加一个UIPageControl控件，借助scrollview的委托方法和pageview的Action方法，即可实现UIPageControl的基本工作|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1179272|我使用contentoffset来查找当前页面|1179273|+//+scrollview+delegate

-+(void)scrollViewDidEndDecelerating:(UIScrollView+*)scrollView+{

++++CGFloat+pageWidth+=+mainScroll.frame.size.width;
++++int+page+=+floor((mainScroll.contentOffset.x+-+pageWidth+/+2)+/+pageWidth)+%2B+1;
++++pageControl.currentPage=page;

++}

++++//+page+view+action+method

++-+(IBAction)pageControlInteracted:(UIPageControl+*)sender+{
++++++NSLog(@"%25d",sender.currentPage);
++++++CGRect+frame+=+mainScroll.frame;
++++++frame.origin.x+=+frame.size.width+*+sender.currentPage;
++++++frame.origin.y+=+0;
++++++[mainScroll+scrollRectToVisible:frame+animated:YES];

+++}|code-block|syntax|javascript|1179274|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Just add 3 views to the Scroll view Horizontally one after other with paging enabled in scrollview and add a UIPageControl control below the scrollView , And with the help of both delegate methods of scrollview and the Action method of pageview you can achieve basic working of UIPageControl 

I used the contentoffset to find the current page

<pre><code> // scrollview delegate

- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView {

 CGFloat pageWidth = mainScroll.frame.size.width;
 int page = floor((mainScroll.contentOffset.x - pageWidth / 2) / pageWidth) + 1;
 pageControl.currentPage=page;

 }

 // page view action method

 - (IBAction)pageControlInteracted:(UIPageControl *)sender {
 NSLog(@"%d",sender.currentPage);
 CGRect frame = mainScroll.frame;
 frame.origin.x = frame.size.width * sender.currentPage;
 frame.origin.y = 0;
 [mainScroll scrollRectToVisible:frame animated:YES];

 }
</code></pre>

I need to use UIPagecontrol for my application, and I'm not sure how to get started. I'm a beginner, and the examples that apple gives me are pretty complicated. All I need are 3 pages with different views for each of them.

How do I use UIPageControl to create multiple views?

我需要在我的应用程序中使用UIPagecontrol，但我不确定如何开始。我是一个初学者，苹果给我的例子非常复杂。所有我需要的是他们中的每一个不同的看法3页。

问如何使用UIPageControl创建多个视图？
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