Iphone iOS-从plist数据滚动图像

我用

UICollectionView

创建了一个图库，并从plist文件加载了一组图像，当用户触摸每个单元格时，将加载一个全屏图像（与iPhone的照片应用程序相同），因此我遇到了一个问题，即当照片全屏时，我无法滚动和查看其他图像，以下是我的代码：

然后在PhotoViewerController中：

-(void) creatContentWithNumerOfPage: (NSInteger) numberOfPage andCurrentPage: (NSInteger) currentPage andImageArray:(NSArray *)imageArray {

    self.pageControl.numberOfPages = numberOfPage;
    self.pageControl.currentPage = currentPage;
    [pageScrollView setContentSize:CGSizeMake(self.view.frame.size.width * pageControl.numberOfPages, self.view.frame.size.height)];
    pageScrollView.delegate = self;
    [self.view addSubview: pageScrollView];


    NSMutableArray *mArray = [[NSMutableArray alloc] initWithCapacity:thumbnailViewController.imageArray.count];
    for (int i = 0; i <= thumbnailViewController.imageArray.count; i++)
    {

        NSDictionary *picturesDictionary = [NSDictionary dictionaryWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"Photos" ofType:@"plist"]];
        imageArray = [picturesDictionary objectForKey:@"PhotosArray"];

        fullScreen = [[UIImageView alloc]initWithImage:[UIImage imageNamed:[imageArray objectAtIndex:currentPage]]];
        [fullScreen setContentMode:UIViewContentModeScaleAspectFit];
        fullScreen.frame = self.view.frame;

        [mArray addObject:fullScreen];
        [pageScrollView addSubview:fullScreen];
    }

}

-（void）创建包含页码的内容：（NSInteger）页码和当前页：（NSInteger）当前页和图像数组：（NSArray*）图像数组{
self.pageControl.numberOfPage=numberOfPage；
self.pageControl.currentPage=currentPage；
[pageScrollView设置内容大小：CGSizeMake（self.view.frame.size.width*pageControl.numberOfPages，self.view.frame.size.height）]；
pageScrollView.delegate=self；
[self.view addSubview:pageScrollView]；
NSMutableArray*mArray=[[NSMutableArray alloc]initWithCapacity:thumbnailViewController.imageArray.count]；
例如，对于（inti=0；i您的代码有很多问题


在
viewDidLoad
方法之前调用
createcontentwithimages
，此时
我们不能期望
self.view.frame
或
self.pageScrollView.frame
，您必须在
viewDidLoad
中/之后调用它。
也许是这样：

[self presentViewController:photosViewController animated:YES completion:^{
    [photoViewController creatContentWithImages:images andCurrentPage:row];
}];


在循环中，您总是使用
currentPage
而不是
i
ivar

您将
imageArray
发送到
createcontentwithnumberofpage
方法，但

由于某些原因，此数组在此处被新数据覆盖（I

假设数据相同）
还不清楚为什么要执行
[self.view addSubview:

pageScrollView]
-UIScrollView是以编程方式创建的吗？但它发生在哪个地方
使用框架进行操作时，应使用UIScrollView框架，
不是UIView，如果您的滚动大小与UIView不同，则

设计也将被打破

我对它进行了更改并改进了一些东西，所以让我们看看这个（我发布了所有photoviewercontroller.m文件）

#导入“photoviewercontroller.h”
@photoviewercontroller的实现
-（id）initWithNibName:（NSString*）nibNameOrNil bundle:（NSBundle*）nibBundleOrNil
{
self=[super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]；
如果（自我）{
//自定义初始化
}
回归自我；
}
-（无效）viewDidLoad
{
[超级视图下载]；
//从nib加载视图后，执行任何其他设置。
}
-（无效）未收到记忆警告
{
[超级记忆警告]；
//处置所有可以重新创建的资源。
}
-（void）creatContentWithImages:（NSArray*）imageArray和currentPage:（NSInteger）currentPage{
//我以编程方式创建UIScrollView，如果您想使用xib，只需删除带有RM注释的行即可。
//xib层次结构中有两个视图-UIScrollView向下和UIPageView上方
self.pageScrollView=[[UIScrollView alloc]initWithFrame:self.view.frame]；//RM
self.pageScrollView.PaginEnabled=YES；//RM
self.pageControl.numberOfPages=imageArray.count；
self.pageControl.currentPage=currentPage；
[self.pageScrollView setContentSize:CGSizeMake（self.pageScrollView.frame.size.width*imageArray.count，self.pageScrollView.frame.size.height）]；
self.pageScrollView.delegate=self；//RM
[self.view insertSubview:self.pageScrollView索引：0]；//RM
for（int i=0；i[self presentViewController:photosViewController animated:YES completion:^{
    [photoViewController creatContentWithImages:images andCurrentPage:row];
}];

#import "PhotosViewerController.h"
@implementation PhotosViewerController

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
    }
    return self;
}

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view from its nib.
}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

-(void) creatContentWithImages:(NSArray*)imageArray andCurrentPage:(NSInteger)currentPage{
// I create UIScrollView programmatically, if you want to use xib then just remove lines with RM comment. 
// There are two views in xib hierarchy - UIScrollView downward and UIPageView above

    self.pageScrollView = [[UIScrollView alloc] initWithFrame:self.view.frame]; //RM
    self.pageScrollView.pagingEnabled = YES; //RM

    self.pageControl.numberOfPages = imageArray.count;
    self.pageControl.currentPage = currentPage;
    [self.pageScrollView setContentSize:CGSizeMake(self.pageScrollView.frame.size.width * imageArray.count, self.pageScrollView.frame.size.height)];

    self.pageScrollView.delegate = self;//RM
    [self.view insertSubview:self.pageScrollView atIndex:0]; //RM

    for (int i = 0; i < imageArray.count; i++) //not <=, just <
    {
        UIImage *img = [imageArray objectAtIndex:i];// not sure whether imageArray contains UIImage's or NSString, so if here NSString the create UIImage in appropriate manner. I've tested it with UIImage's 
        UIImageView *fullScreen = [[UIImageView alloc] initWithImage:img];
        [fullScreen setContentMode:UIViewContentModeScaleAspectFit];
        fullScreen.frame = CGRectMake(i*self.pageScrollView.frame.size.width, 0, self.pageScrollView.frame.size.width, self.pageScrollView.frame.size.height);

        [self.pageScrollView addSubview:fullScreen];
    }

    [self scrollToPage:currentPage animated:NO]; // scroll to corresponding page
}

- (void)scrollViewDidScroll: (UIScrollView *) sView
{
    CGFloat offset = self.pageScrollView.contentOffset.x;
    CGFloat pageSize = self.pageScrollView.frame.size.width;

    int page = floor((offset + (pageSize/2)) / pageSize);
    self.pageControl.currentPage = page;
}

- (IBAction)changeThePage:(id)sender
{
    NSLog(@"Change");
    [self scrollToPage:self.pageControl.currentPage animated:YES];
}

- (void)scrollToPage:(NSInteger)page animated:(BOOL)animated{
    CGRect pageRect = CGRectMake(page * self.pageScrollView.frame.size.width, 0, self.pageScrollView.frame.size.width, self.pageScrollView.frame.size.height);    
    [self.pageScrollView scrollRectToVisible: pageRect animated: animated];

    [self.pageControl setCurrentPage:page];
}
@end