Iphone 在pagingScrollView中缩放

我昨天问的问题的后续问题

我有一个页面滚动视图，它只显示y轴上的页面。目前我有一个UIImageView数组，其中包含不同的UIImages，photoScroller可以像我预期的那样工作，但是当我尝试将imageView添加为另一个scrollView的子视图以允许收缩和缩放时，它会破坏图库

我所说的中断是指它只加载第一个图像，但为其他图像保留空间，不会发生挤压

-（void）负荷视图{

//从文件名创建4个图像
UIImage*img0=[UIImage ImageName:@“29.png”]；
UIImage*img1=[UIImage ImageName:@“33.png”]；
UIImage*img2=[UIImage ImageName:@“IMAG0085.JPG”]；
UIImage*img3=[UIImage ImageName:@“dsc0081.JPG”]；
NSMUTABLEARRY*imgArray=[[NSMUTABLEARRY alloc]initWithObjects:img0、img1、img2、img3、nil]；//将图像放入数组中
CGRect pagingScrollViewFrame=[[UIScreen mainScreen]bounds]；//创建初始scrollViewFrame作为屏幕大小
pagingScrollViewFrame.origin.x-=10；//将其向左移动10px
pagingScrollViewFrame.size.width+=20；//将20px添加到右侧，在任一侧创建一个10px的空白缓冲区
pagingScrollView=[[UIScrollView alloc]initWithFrame:pagingScrollViewFrame]；//使用框架指定的大小创建pagingScrollView
pagingScrollView.PaginEnabled=YES；//允许分页
pagingScrollView.backgroundColor=[UIColor blackColor]；//背景黑色
pagingScrollView.contentSize=CGSizeMake（pagingScrollViewFrame.size.width*[imgArray count]，pagingScrollViewFrame.size.height）；//根据数组中的数字（单位：安培）设置滚动视图的宽度。
self.view=pagingScrollView；//将pagingScrollView添加到主视图
for（int i=0；i<[imgaray count]；i++）{//循环将图像添加到imageView，然后将其添加到分页滚动视图
/*--------从数组中获取图像并将其放置在imageView中------*/
UIImageView*页面=[[UIImageView alloc]initWithImage:[imgArray objectAtIndex:i]]；
page.frame=[[UIScreen mainScreen]边界]；
page.contentMode=ui视图contentmodescaleaspectfit；
//[page.setclipstobunds:YES]；
CGRect CGRect=[[UIScreen mainScreen]边界]；
CGSize CGSize=cgRect.size；
[page setFrame:CGRectMake（（i*pagingScrollViewFrame.size.width）+10,0，cgSize.width，cgSize.height）]；
/*--------创建缩放滚动视图并将imageView添加为子视图------*/
UIScrollView*zoomingScrollView=[[UIScrollView alloc]initWithFrame:cgRect]；
zoomingScrollView.delegate=self；
zoomingScrollView.maximumZoomScale=4.0；
zoomingScrollView.clipsToBounds=是；
[缩放滚动视图添加子视图：页面]；
[分页滚动视图添加子视图：缩放滚动视图]；
}}
-（UIView*）视图用于缩放CrollView:（UICrollView*）滚动视图{
NSArray*数组=[scrollView子视图]；
返回[array lastObject]；
}

     - (void)loadView{


     // Creates 4 images from the file names
     UIImage *img0 = [UIImage imageNamed:@"29.png"];
     UIImage *img1 = [UIImage imageNamed:@"33.png"];
     UIImage *img2 = [UIImage imageNamed:@"IMAG0085.JPG"];
     UIImage *img3 = [UIImage imageNamed:@"DSC00081.JPG"];

NSMutableArray *imgArray = [[NSMutableArray alloc] initWithObjects:img0,img1,img2, img3, nil]; //Places images into array


CGRect pagingScrollViewFrame = [[UIScreen mainScreen] bounds]; // Creates initial scrollViewFrame to be the size of the screen
pagingScrollViewFrame.origin.x -= 10; //moves it 10px to the left
pagingScrollViewFrame.size.width += 20; //adds 20px to the right creating a 10px blank buffer either side
pagingScrollView = [[UIScrollView alloc] initWithFrame:pagingScrollViewFrame]; //Creates the pagingScrollView with the size specified with the frame
pagingScrollView.pagingEnabled = YES; //allow paging
pagingScrollView.backgroundColor = [UIColor blackColor]; //background black
pagingScrollView.contentSize = CGSizeMake(pagingScrollViewFrame.size.width * [imgArray count], pagingScrollViewFrame.size.height); //sets the width of the scroll view depending on the number in amges in the array.

self.view = pagingScrollView; //add the pagingScrollView to the main view

for (int i=0; i < [imgArray count]; i++) { //loop to add the images to an imageView and then add them to the paging ScrollView

    /*--------Gets the image from the array and places it in an imageView------*/
    UIImageView *page = [[UIImageView alloc] initWithImage: [imgArray objectAtIndex:i]];
    page.frame = [[UIScreen mainScreen] bounds];
    page.contentMode = UIViewContentModeScaleAspectFit;
    //[page.setClipsToBounds:YES];
    CGRect cgRect = [[UIScreen mainScreen] bounds];
    CGSize cgSize = cgRect.size;
    [page setFrame:CGRectMake((i*pagingScrollViewFrame.size.width)+10, 0, cgSize.width, cgSize.height)];

    /*--------Creates Zooming scrollView and adds the imageView as a subView------*/

    UIScrollView *zoomingScrollView = [[UIScrollView alloc] initWithFrame:cgRect];
    zoomingScrollView.delegate = self;
    zoomingScrollView.maximumZoomScale = 4.0;
    zoomingScrollView.clipsToBounds = YES;

    [zoomingScrollView addSubview:page];
    [pagingScrollView addSubview:zoomingScrollView];
     }}

   - (UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView{
  NSArray *array = [scrollView subviews];
  return [array lastObject];
 }

zoomingScrollView.frame = CGRectMake((i*pagingScrollViewFrame.size.width)+10, 0, cgSize.width, cgSize.height)];
page.frame = zoomingScrollView.bounds;