最后效果图:

BeyondViewController.h

//
//  BeyondViewController.h
//  8_scrollVIew分页浏览
//
//  Created by beyond on 14-7-25.
//  Copyright (c) 2014年 com.beyond. All rights reserved.
//#import <UIKit/UIKit.h>@interface BeyondViewController : UIViewController
@property (weak, nonatomic) IBOutlet UIScrollView *scrollView;@end

BeyondViewController.m

//
//  BeyondViewController.m
//  8_scrollVIew分页浏览
/*下面代码存在性能问题,仅作为新特性介绍界面使用不可作为图片浏览器~1,一次性生成8个ImageView会存在性能问题,解决方法:使用3个ImageView(或2个ImageView)2,另外,循环播放还没实现*/
//  Created by beyond on 14-7-25.
//  Copyright (c) 2014年 com.beyond. All rights reserved.
//#import "BeyondViewController.h"
// 图片总张数
#define kImgCount 8
@interface BeyondViewController ()<UIScrollViewDelegate>
{// 分页条码指示控制器UIPageControl *_pageControl;
}@end@implementation BeyondViewController- (void)viewDidLoad
{[super viewDidLoad];// 调用自己定义方法[self scrollViewWithPage];
}// 带分页功能的scrollView
- (void)scrollViewWithPage
{// 1,设置scrollView的可视大小,内容大小,等属性_scrollView.frame = self.view.bounds;_scrollView.showsHorizontalScrollIndicator = NO;_scrollView.showsVerticalScrollIndicator = NO;_scrollView.bouncesZoom = NO;_scrollView.bounces = NO;// 设置代码,监听滚动完成的事件_scrollView.delegate = self;// 2,创建8个UIImageView,加入到scrollView// 每一个图片宽,高CGFloat imgW = self.view.bounds.size.width;CGFloat imgH = self.view.bounds.size.height;for (int i=0; i<kImgCount; i++) {// UIImageView// 图片名:01.jpg ~ 07.jpgNSString *imgName = [NSString stringWithFormat:@"0%d.png",i+1];UIImageView *imgView = [[UIImageView alloc]initWithImage:[UIImage imageNamed:imgName]];// 假设保持imageView里面的image不变形//设置UIImageView的对象的下面两个属性，能够图片不变形且充满图片框为前提进行填充。imgView.clipsToBounds = YES;imgView.contentMode = UIViewContentModeScaleAspectFill;// y是0,x是一张连着一张imgView.frame = CGRectMake(i*imgW, 0, imgW, imgH);// 将全部的图片加入到scrollView[_scrollView addSubview:imgView];}// 3,这个最重要,是滚动区域// _scrollView.contentSize = CGSizeMake(kImgCount*imgW, imgH);// 0代表高度方向不滚动_scrollView.contentSize = CGSizeMake(kImgCount*imgW, 0);// 按scrollView的宽度分页_scrollView.pagingEnabled = YES;// 4,pageControl分页指示条_pageControl = [[UIPageControl alloc]init];// pageControl分页指示条的中心点在底部中间_pageControl.numberOfPages = kImgCount; //这个最重要_pageControl.center = CGPointMake(imgW*0.5, imgH-20);_pageControl.bounds = CGRectMake(0, 0, 150, 15);_pageControl.pageIndicatorTintColor = [UIColor grayColor];_pageControl.currentPageIndicatorTintColor = [UIColor redColor];_pageControl.enabled = NO; //取消其默认的点击行为[self.view addSubview:_pageControl];}
/*在这种方法里面,能够进行性能优化,由于时时在监听滚动,从而随时进行3个UIImageView的拼接,甚至可精简到仅仅有2个UIImageView进行动态拼接*/
- (void)scrollViewDidScroll:(UIScrollView *)scrollView
{// scrollView的contentOffset是最重要的属性,点,x,y记录的是滚动的距离,相对的是scrollView的可视界面的左上角的距离CGPoint offset = scrollView.contentOffset;int curPageNo = offset.x / _scrollView.bounds.size.width;_pageControl.currentPage = curPageNo ;}@end