ios開發之 -- 自動輪播圖建立

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這裡是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的建立    _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];        //定時器的建立    _timer = [NSTimer scheduledTimerWithTimeInterval:2 target:self selector:@selector(onTimer) userInfo:nil repeats:YES];

3，回應程式法的實現

-(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;//定時器的具體回應程式法-(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];    }

就不加了，這裡僅做記錄用！

ios開發之 -- 自動輪播圖建立