ios开发之 -- 自动轮播图创建

这里是oc版本的，简单记录下：

具体代码如下：

1，准备

#define FRAME [[UIScreen mainScreen] bounds]
#define WIDTH  FRAME.size.width
#define HEIGHT FRAME.size.height

2，具体实现

 //scrollview的添加_bigScrollView = [[UIScrollView alloc]initWithFrame:CGRectMake(0, 20, WIDTH, HEIGHT)];_bigScrollView.showsHorizontalScrollIndicator = NO;_bigScrollView.contentSize = CGSizeMake(WIDTH *6, 0);_bigScrollView.pagingEnabled = YES;_bigScrollView.bounces = NO;_bigScrollView.delegate = self;[self.view addSubview:_bigScrollView];//图片内容的添加for ( int i = 0; i<6; i++) {UIImageView *imageView = [[UIImageView alloc]initWithFrame:CGRectMake(i *WIDTH, 0, WIDTH, HEIGHT)];imageView.image = [UIImage imageNamed:[NSString stringWithFormat:@"%d.jpg",i]];[_bigScrollView addSubview:imageView];}//pagecontrol的创建_pageControl = [[UIPageControl alloc] initWithFrame:CGRectMake(0, 0, WIDTH, 40)] ;_pageControl.center = CGPointMake(_bigScrollView.center.x, _bigScrollView.center.y);_pageControl.numberOfPages = 6;_pageControl.currentPage = 0;_pageControl.pageIndicatorTintColor = [UIColor blueColor];_pageControl.currentPageIndicatorTintColor =[UIColor redColor];[self.view addSubview:_pageControl];[_pageControl addTarget:self action:@selector(pageControllerClick) forControlEvents:UIControlEventValueChanged];//定时器的创建_timer = [NSTimer scheduledTimerWithTimeInterval:2 target:self selector:@selector(onTimer) userInfo:nil repeats:YES];

3，响应方法的实现

-(void)pageControllerClick
{[_bigScrollView setContentOffset:CGPointMake(_pageControl.currentPage*320, 0) animated:YES];
}//在scrollview开始手动滑动的时候
- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView
{[_timer setFireDate:[NSDate distantFuture]];
}//在scrollview添加一个延迟方法
- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView
{_pageControl.currentPage = _bigScrollView.contentOffset.x/WIDTH;[self performSelector:@selector(disPast) withObject:nil afterDelay:2];//延迟方法
    
}//启动定时器
-(void)disPast
{[_timer setFireDate:[NSDate distantPast]];
}static int count=1;//定时器的具体响应方法
-(void)onTimer
{_pageControl.currentPage+=count;if (_pageControl.currentPage==_pageControl.numberOfPages-1||_pageControl.currentPage==0){count=-count;};[_bigScrollView setContentOffset:CGPointMake(_pageControl.currentPage*WIDTH, 0) animated:YES];}