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UIScrollView (一)UIScrollView基本用法和代理方法

时间:2015-03-02 12:55:45      阅读:175      评论:0      收藏:0      [点我收藏+]

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- (void)viewDidLoad
{
    [super viewDidLoad];
     
    scrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, 320, 460)];
    scrollView.backgroundColor = [UIColor redColor];
    // 是否支持滑动最顶端
//    scrollView.scrollsToTop = NO;
    scrollView.delegate = self;
    // 设置内容大小
    scrollView.contentSize = CGSizeMake(320, 460*10);
    // 是否反弹
//    scrollView.bounces = NO;
    // 是否分页
//    scrollView.pagingEnabled = YES;
    // 是否滚动
//    scrollView.scrollEnabled = NO;
//    scrollView.showsHorizontalScrollIndicator = NO;
    // 设置indicator风格
//    scrollView.indicatorStyle = UIScrollViewIndicatorStyleWhite;
    // 设置内容的边缘和Indicators边缘
//    scrollView.contentInset = UIEdgeInsetsMake(0, 50, 50, 0);
//    scrollView.scrollIndicatorInsets = UIEdgeInsetsMake(0, 50, 0, 0);
    // 提示用户,Indicators flash
    [scrollView flashScrollIndicators];
    // 是否同时运动,lock
    scrollView.directionalLockEnabled = YES;
    [self.view addSubview:scrollView];
     
    UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(0, 200, 320, 40)];
    label.backgroundColor = [UIColor yellowColor];
    label.text = @"学习scrolleview";
    [scrollView addSubview:label];
    [label release];
}
 
#pragma mark -
/*
// 返回一个放大或者缩小的视图
- (UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView
{
     
}
// 开始放大或者缩小
- (void)scrollViewWillBeginZooming:(UIScrollView *)scrollView withView:
(UIView *)view
{
     
}
 
// 缩放结束时
- (void)scrollViewDidEndZooming:(UIScrollView *)scrollView withView:(UIView *)view atScale:(float)scale
{
     
}
  
// 视图已经放大或缩小
- (void)scrollViewDidZoom:(UIScrollView *)scrollView
{
NSLog(@"scrollViewDidScrollToTop");
}
 */
 
// 是否支持滑动至顶部
- (BOOL)scrollViewShouldScrollToTop:(UIScrollView *)scrollView
{
    return YES;
}
 
// 滑动到顶部时调用该方法
- (void)scrollViewDidScrollToTop:(UIScrollView *)scrollView
{
    NSLog(@"scrollViewDidScrollToTop");
}
 
// scrollView 已经滑动
- (void)scrollViewDidScroll:(UIScrollView *)scrollView
{
    NSLog(@"scrollViewDidScroll");
}
 
// scrollView 开始拖动
- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView
{
    NSLog(@"scrollViewWillBeginDragging");
}
 
// scrollView 结束拖动
- (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate
{
    NSLog(@"scrollViewDidEndDragging");
}
 
// scrollView 开始减速(以下两个方法注意与以上两个方法加以区别)
- (void)scrollViewWillBeginDecelerating:(UIScrollView *)scrollView
{
    NSLog(@"scrollViewWillBeginDecelerating");
}
 
// scrollview 减速停止
- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView
{
   NSLog(@"scrollViewDidEndDecelerating");
}
 
 

UIScrollView (一)UIScrollView基本用法和代理方法

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原文地址:http://www.cnblogs.com/A--G/p/4308339.html

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