UIScrollView 滾動視圖

/////記得添加 代理 <UIScrollViewDelegate>

UIScrollView sv = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, 320, 460)];
    [self.view addSubview:sv];
    [sv release];
    //常用屬性
    //真正大小,在這里frame僅代表可視位置和范圍
    sv.contentSize = CGSizeMake(320  17, 460 * 2);
    //偏移量,frame左上角頂點相對于contentView左上角頂點的偏移量
    sv.contentOffset = CGPointMake(0, 0);
    //[sv setContentOffset: animated:]
    //分頁
    sv.pagingEnabled = YES;
    //設置額外的空間
    sv.contentInset = UIEdgeInsetsMake(0, 0, 0, 0);
    //鎖定方向，左右滑動和上下滑動不能同時進行
    sv.directionalLockEnabled = YES;
    //反彈效果
    sv.bounces = YES;
    //水平方向上保持反彈效果
    sv.alwaysBounceHorizontal = YES;
    //垂直方向上保持反彈效果
    sv.alwaysBounceVertical = YES;
    //開啟滑動
    sv.scrollEnabled = YES;
    //隱藏水平狀態條
    sv.showsHorizontalScrollIndicator = YES;
    //隱藏垂直狀態條
    sv.showsVerticalScrollIndicator = YES;
    //狀態條位置
    //sv.scrollIndicatorInsets = UIEdgeInsetsMake(100, 100, 100, 100);
    //狀態條類型
    sv.indicatorStyle = UIScrollViewIndicatorStyleDefault;
    //減速速率 范圍0~1
    sv.decelerationRate = 0.5;
    //delaysContentTouches
    //sv.delaysContentTouches = NO;
    sv.delegate = self;
    sv.tag = 10;

//添加內容  圖片
for (int i = 0; i < 17; i++) {
    UIScrollView* subSv = [[UIScrollView alloc] initWithFrame:CGRectMake(i * 320, 0, 320, 460)];
    subSv.delegate = self;
    subSv.minimumZoomScale = 0.5;
    subSv.maximumZoomScale = 2.0;
    [sv addSubview:subSv];
    [subSv release];

    UIImageView* imageView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 320, 460)];
    imageView.image = [UIImage imageNamed:[NSString stringWithFormat:@"10_%d.jpg",i]];
    [subSv addSubview:imageView];
    [imageView release];
}
//這個button 只顯示在第一張圖片上
UIButton* button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
button.frame = CGRectMake(100, 100, 100, 40);
button.backgroundColor = [UIColor yellowColor];
[sv addSubview:button];
[button addTarget:self action:@selector(buttonClick) forControlEvents:UIControlEventTouchUpInside];


///事件
- (void)buttonClick{
NSLog(@"點擊了");

//    UIScrollView sv = (UIScrollView)[self.view viewWithTag:10];
//    [sv setContentOffset:CGPointMake(320 * 5, 0) animated:YES];
    self.view.hidden=YES;
}
//縮放

(UIView )viewForZoomingInScrollView:(UIScrollView )scrollView{
  if (scrollView.tag == 10) {
  return nil;

  }
  for (UIView* view in scrollView.subviews) {
  if ([view isKindOfClass:[UIImageView class]]) {
      return view;
  }

  }
  return nil;
}

//滑動調用，contentOffSet發生偏移

(void)scrollViewDidScroll:(UIScrollView *)scrollView{
  //int page = scrollView.contentOffset.x / 320;
  //NSLog(@"%d",page);

}
//將要開始拖拽

(void)scrollViewWillBeginDragging:(UIScrollView *)scrollView{
  NSLog(@"將要開始拖拽");
}

//將要結束拖拽

(void)scrollViewWillEndDragging:(UIScrollView )scrollView withVelocity:(CGPoint)velocity targetContentOffset:(inout CGPoint )targetContentOffset{
  NSLog(@"將要結束拖拽");
}

//結束拖拽

(void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate{
  NSLog(@"結束拖拽 %d",decelerate);
}

//將要開始減速

(void)scrollViewWillBeginDecelerating:(UIScrollView *)scrollView{
  NSLog(@"將要開始減速");
}

//結束減速

(void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView{
  NSLog(@"結束減速");
}

(void)scrollViewDidEndScrollingAnimation:(UIScrollView *)scrollView{
  NSLog(@"結束動畫");
}

(BOOL)scrollViewShouldScrollToTop:(UIScrollView *)scrollView{
  NSLog(@"要滑動到頂部");
  return YES;
}

(void)scrollViewDidScrollToTop:(UIScrollView *)scrollView{
  NSLog(@"已經滑動到頂部");
}


//將要開始縮放

(void)scrollViewWillBeginZooming:(UIScrollView )scrollView withView:(UIView )view{
  NSLog(@"開始縮放");
}

//正在縮放

(void)scrollViewDidZoom:(UIScrollView *)scrollView{
  NSLog(@"縮放中");
}

//結束縮放

(void)scrollViewDidEndZooming:(UIScrollView )scrollView withView:(UIView )view atScale:(float)scale{
  NSLog(@"縮放結束:%f",scrollView.zoomScale);
}</pre>