ios開發之 -- 自動輪播圖創建

這里是oc版本的，簡單記錄下：

具體代碼如下：

1，準備

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

2，具體實現

 //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];//圖片內容的添加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的創建_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];//定時器的創建_timer = [NSTimer scheduledTimerWithTimeInterval:2 target:self selector:@selector(onTimer) userInfo:nil repeats:YES];

3，響應方法的實現

-(void)pageControllerClick
{[_bigScrollView setContentOffset:CGPointMake(_pageControl.currentPage*320, 0) animated:YES];
}//在scrollview開始手動滑動的時候
- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView
{[_timer setFireDate:[NSDate distantFuture]];
}//在scrollview添加一個延遲方法
- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView
{_pageControl.currentPage = _bigScrollView.contentOffset.x/WIDTH;[self performSelector:@selector(disPast) withObject:nil afterDelay:2];//延遲方法
    
}//啟動定時器
-(void)disPast
{[_timer setFireDate:[NSDate distantPast]];
}static int count=1;//定時器的具體響應方法
-(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];}

效果圖就不加了，這里僅做記錄用！