- (void)viewDidLoad{[super viewDidLoad];// Do any additional setup after loading the view, typically from a nib.//定義UIScrollView//self.scrollView = [[UIScrollView alloc] init];//self.scrollView.frame = CGRectMake(10, 0, 200, 500);self.scrollView.contentSize = CGSizeMake(1000,288); //scrollview的滾動范圍self.scrollView.showsVerticalScrollIndicator = NO;self.scrollView.showsHorizontalScrollIndicator = NO;//myScrollView.clipsToBounds = YES;self.scrollView.delegate = self;self.scrollView.scrollEnabled = YES;self.scrollView.pagingEnabled = YES; //使用翻頁屬性self.scrollView.bounces = NO;for(int i=0;i<4;i++){UIImageView *imageV =[[UIImageView alloc]initWithImage:[UIImage imageNamed:@"wel2.png"]];[imageV setFrame:CGRectMake(200*i, 0, 192, 288)];[self.scrollView addSubview:imageV];}//定義PageControllself.pageControl.numberOfPages = 4;//指定頁面個數self.pageControl.currentPage = 0;//指定pagecontroll的值，默認選中的小白點（第一個）[self.pageControl addTarget:self action:@selector(changePage:) forControlEvents:UIControlEventValueChanged];}//scrollview的委托方法，當滾動時執行- (void)scrollViewDidScroll:(UIScrollView *)sender {int page = self.scrollView.contentOffset.x / 192;//通過滾動的偏移量來判斷目前頁面所對應的小白點self.pageControl.currentPage = page;//pagecontroll響應值的變化}- (IBAction)changePage:(id)sender {int page = self.pageControl.currentPage;//獲取當前pagecontroll的值self.label1.text = [[NSString alloc]initWithFormat:@"%d",page];[self.scrollView setContentOffset:CGPointMake(200 * page, 0)];//根據pagecontroll的值來改變scrollview的滾動位置，以此切換到指定的頁面}

轉載于:https://www.cnblogs.com/zzili/archive/2012/12/06/6663418.html

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