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一、添加几个成员变量
@interface hDisplayView ()<UIScrollViewDelegate> { UIScrollView *_bigScrollView; NSMutableArray *_imageArray; UIPageControl *_pageControl; }
二、添加构造方法
-(instancetype)initWithFrame:(CGRect)frame { self = [super initWithFrame:frame]; if (self) { _imageArray = [@[@"闪屏1.png",@"闪屏2.png", @"闪屏3.png",@"闪屏4.png"]mutableCopy]; // _imageArray = [NSMutableArray arrayWithObjects:@"闪屏1.png",@"闪屏2.png", @"闪屏3.png",@"闪屏4.png", nil]; UIScrollView *scrollView = [[UIScrollView alloc]initWithFrame:CGRectMake(0, 0, MainScreen_width, MainScreen_height)]; scrollView.contentSize = CGSizeMake((_imageArray.count + 1)*MainScreen_width, MainScreen_height); //设置反野效果，不允许反弹，不显示水平滑动条，设置代理为自己 scrollView.pagingEnabled = YES;//设置分页 scrollView.bounces = NO; scrollView.showsHorizontalScrollIndicator = NO; scrollView.delegate = self; [self addSubview:scrollView]; _bigScrollView = scrollView; for (int i = 0; i < _imageArray.count; i++) { UIImageView *imageView = [[UIImageView alloc]init]; imageView.frame = CGRectMake(i * MainScreen_width, 0, MainScreen_width, MainScreen_height); UIImage *image = [UIImage imageNamed:_imageArray[i]]; imageView.image = image; [scrollView addSubview:imageView]; } UIPageControl *pageControl = [[UIPageControl alloc]initWithFrame:CGRectMake(MainScreen_width/2, MainScreen_height - 60, 0, 40)]; pageControl.numberOfPages = _imageArray.count; pageControl.backgroundColor = [UIColor clearColor]; [self addSubview:pageControl]; _pageControl = pageControl; //添加手势 UITapGestureRecognizer *singleRecognizer; singleRecognizer = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(handleSingleTapFrom)]; singleRecognizer.numberOfTapsRequired = 1; [scrollView addGestureRecognizer:singleRecognizer]; } return self; }
三、添加一个手势，在周到最后一页的时候，让整个view隐藏
-(void)handleSingleTapFrom { if (_pageControl.currentPage == 3) { self.hidden = YES; } }
四、添加一个scrollview的代理方法，让pagecontrol在scrollview的中间位置
-(void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView
{
if (scrollView == _bigScrollView) {
CGPoint offSet = scrollView.contentOffset;
_pageControl.currentPage = offSet.x/(self.bounds.size.width);//计算当前的页码
[scrollView setContentOffset:CGPointMake(self.bounds.size.width * (_pageControl.currentPage), scrollView.contentOffset.y) animated:YES];
}
if (scrollView.contentOffset.x == (_imageArray.count) *MainScreen_width) {
self.hidden = YES;
}
}
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原文地址：http://www.cnblogs.com/hero11223/p/5579574.html
