分页相关属性只要将UIScrollView的pageEnabled属性设置为YES，UIScrollView会被分割成多个独立页面，里面的内容就能进行分页展示一般会配合UIPageControl增强分页效果，，UIPageControl常用属性如下 一共有多少页@property(nonatomic) NSInteger numberOfPages;当前显示的页码@property(nonatomic) NSInteger currentPage; 只有一页时，是否需要隐藏页码指示器@property(nonatomic) BOOL hidesForSinglePage; 其他页码指示器的颜色@property(nonatomic,retain) UIColor *pageIndicatorTintColor;当前页码指示器的颜色@property(nonatomic,retain) UIColor *currentPageIndicatorTintColor;分页图片轮播器实例#define ImageCount 5#ViewController ()<UIScrollViewDelegate>@property (weak, nonatomic) IBOutlet UIScrollView *scrollView;@property (weak, nonatomic) IBOutlet UIPageControl *pageControl;/** * 定时器 */@property(nonatomic,strong)NSTimer* timer;@end@implementation ViewController- (void)viewDidLoad {[super viewDidLoad];//0.一些固定的尺寸参数CGFloat imageW=self.scrollView.frame.size.width;CGFloat imageH=self.scrollView.frame.size.height;CGFloat imageY=0;//1.添加imageCount个图片到scrollView中for (int i=0; i<ImageCount; i++) {UIImageView* imageView =[[UIImageView alloc]init];//设置frameCGFloat imageX=i*imageW;imageView.frame=CGRectMake(imageX, imageY, imageW, imageH);//设置图片NSString* name=[NSString stringWithFormat:@”img_0%d”,i+1];imageView.image=[UIImage imageNamed:name];[self.scrollView addSubview:imageView];}//2.设置内容尺寸CGFloat contentW=ImageCount*imageW;self.scrollView.contentSize=CGSizeMake(contentW, 0);//3.隐藏水平滚动条self.scrollView.showsHorizontalScrollIndicator=NO;//4.分页self.scrollView.pagingEnabled=YES;self.scrollView.delegate=self;//5.设置pageControl的总页数self.pageControl.numberOfPages=ImageCount;//6.添加定时器（每隔2秒调用一次self的nextImage方法）[self addTimer];}/** * 添加定时器 */- (void)addTimer{self.timer=[NSTimer scheduledTimerWithTimeInterval:2.0 target:self selector:@selector(nextImage) userInfo:nil repeats:YES];//循环控制多线程[[NSRunLoop currentRunLoop] addTimer:self.timer forMode:NSRunLoopCommonModes];}/** * 移除定时器 */- (void)removeTimer{[self.timer invalidate];self.timer=nil;}/** * 下一张图片 */- (void)nextImage{//1.增加pageControl的页码int page=0;if (self.pageControl.currentPage==ImageCount-1) {page=0;}else{page=self.pageControl.currentPage+1;}//2.计算scrollView滚动的位置CGFloat offsetX=page*self.scrollView.frame.size.width;CGPoint offset=CGPointMake(offsetX, 0);[self.scrollView setContentOffset:offset animated:YES];}#pragma mark – 代理方法/** * 当scrollView正在滚动就会调用 */- (void) scrollViewDidScroll:(UIScrollView *)scrollView{//根据scrollView的滚动位置决定pageControl显示第几页CGFloat scrollW=scrollView.frame.size.width;int page=(scrollView.contentOffset.x+scrollW*0.5)/scrollW;self.pageControl.currentPage=page;}/** * 开始拖拽的时候调用 */- (void)scrollViewWillBeginDecelerating:(UIScrollView *)scrollView{//停止定时器(一旦定时器停止了，就不能在使用了)[self removeTimer];}/** * 停止拖拽的时候调用 */- (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate{//开启定时器[self addTimer];}@endStoryboard
效果图
筑起梦想的鸟巢，开始人生的长跑，领先每回的冲刺，
