iPhone应用中UIScrollView的使用方法

主要是实现UIScrollView可以产生画轴的效果，可以在手机屏中左右滑动。先来看内容。

 

初始化代码为：

 

mainView = [[UIScrollView alloc] initWithframe:CGRectMake(0.0, 0.0, self.view.frame.size.width, 400)]; 

mainView.directionalLockEnabled = YES; 

mainView.pagingEnabled = YES; 

mainView.backgroundColor = [UIColor blueColor]; 

mainView.showsVerticalScrollIndicator = NO; 

mainView.showsHorizontalScrollIndicator = NO; 

mainView.delegate = self; 

CGSize newSize = CGSizeMake(self.view.frame.size.width * 2, self.view.frame.size.height); 

[mainView setContentSize:newSize]; 

[self.view addSubview:mainView]; 

pageControl = [[UIPageControl alloc] initWithframe:CGRectMake(0.0, 401, self.view.frame.size.width, 80)]; 

pageControl.hidesForSinglePage = YES; 

pageControl.userInteractionEnabled = NO; 

pageControl.backgroundColor = [UIColor redColor]; 

[self.view addSubview:pageControl]; 

UIView *view1=[[UIView alloc] initWithframe:CGRectMake(0.0, 0.0, self.view.frame.size.width, self.view.frame.size.height)]; 

view1.backgroundColor=[UIColor redColor]; 

[mainView addSubview:view1]; 

UIView *view2=[[UIView alloc] initWithframe:CGRectMake(self.view.frame.size.width, 0.0, self.view.frame.size.width, self.view.frame.size.height)]; 

view2.backgroundColor=[UIColor blueColor]; 

[mainView addSubview:view2];

滑动的事件为：

#pragma mark - 

#pragma mark UIScrollView 

- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView{ 

if ([scrollView isKindOfClass:[UITableView class]]) { 

return; 

} 

 

int index = fabs(scrollView.contentOffset.x) / scrollView.frame.size.width; 

 

pageControl.currentPage = index; 

 

//index为当前页码 

NSLog(@"%d",index);

 

更多详情：IOS网络编程http://bbs.9ria.com/thread-195570-1-1.html