我有一个问题如何在UIView中添加UIScrollView,以便UIScrollView可以正常工作。
UIScrollView *scroll = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, container.frame.size.width/2, container.frame.size.height/2)];
scroll.pagingEnabled = YES;
scroll.scrollEnabled = YES;
[scroll setBackgroundColor:[UIColor redColor]];
NSInteger numberOfViews = 3;
for (int i = 0; i < numberOfViews; i++)
{
CGFloat xOrigin = i * container.frame.size.width/2;
UIView *awesomeView = [[UIView alloc] initWithFrame:CGRectMake(xOrigin, 0, container.frame.size.width, container.frame.size.height)];
awesomeView.backgroundColor = [UIColor colorWithRed:0.5/i green:0.5 blue:0.5 alpha:1];
[scroll addSubview:awesomeView];
[awesomeView release];
}
scroll.contentSize = CGSizeMake(container.frame.size.width/2 * numberOfViews, container.frame.size.height);
[container addSubview:scroll];
以上代码来自教程:http://idevzilla.com/2010/09/16/uiscrollview-a-really-simple-tutorial/ 但它对我不起作用。
修改
如果您遇到问题,即您已正确设置了滚动视图但它无法正常工作,请确保您没有与另一个UIView覆盖您的滚动视图。那是我的问题。 的解决!
答案 0 :(得分:6)
试试这个:
{
scrollview=[[UIScrollView alloc]initWithFrame:CGRectMake(0,0,320,480)];
scrollview.showsVerticalScrollIndicator=YES;
scrollview.scrollEnabled=YES;
scrollview.userInteractionEnabled=YES;
[self.view addSubview:scrollview];
scrollview.contentSize = CGSizeMake(width,height);
[scrollview release];
}
答案 1 :(得分:1)
你的
scroll.contentSize = CGSizeMake(container.frame.size.width * numberOfViews, container.frame.size.height);
答案 2 :(得分:1)
[container addSubview:scroll];
在for循环之前添加此行。
答案 3 :(得分:1)
您可以使用以下代码在您的视图上添加UIScrollView: -
第1步:
Delegate "UIScrollViewDelegate" to your ViewController.h
for example:
@interface yourViewController:UIViewController<UIScrollViewDelegate>
第2步:
//create you UIScrollView
UIScrollView *MyScrollVw= [[UIScrollView alloc]initWithFrame:CGRectMake(0 ,0 ,320 ,480)];
MyScrollVw.delegate= self;
[MyScrollVw setShowsHorizontalScrollIndicator:NO];
[MyScrollVw setShowsVerticalScrollIndicator:YES];
MyScrollVw.scrollEnabled= YES;
MyScrollVw.userInteractionEnabled= YES;
[yourView addSubview:MyScrollVw];
MyScrollVw.contentSize= CGSizeMake(320 ,1500);//(width,height)
第3步:
您想在ViewController.m中实现scrollView Delegates
-(UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView{
return imgView;
}
-(void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView{
NSLog(@"Did end decelerating");
//do your code here
}
-(void)scrollViewDidScroll:(UIScrollView *)scrollView{
NSLog(@"Did scroll");
//do your code here
}
-(void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate{
NSLog(@"Did end dragging");
//do your code here
}
-(void)scrollViewWillBeginDecelerating:(UIScrollView *)scrollView{
NSLog(@"Did begin decelerating");
//do your code here
}
-(void)scrollViewWillBeginDragging:(UIScrollView *)scrollView{
NSLog(@"Did begin dragging");
//do your code here
}