iphone:UIScrollView分页已启用，无缩放和预览

我想实现一个UIScrollView，其中启用了分页功能，我可以轻松浏览一些图像。这就是我现在想要做的

到目前为止，我已经在interface builder中完成了这项工作：有人能帮忙吗

剩下的我不知道怎么做。谁能帮我一下吗。我不需要任何缩放功能。我不想在scrollview中预览上一个或下一个图像，我只想要一个简单的支持分页的滚动视图，允许用户浏览图像

感谢所有的帮助。 如果你能一步一步地告诉我如何才能做到这一点，我将不胜感激。多谢各位

---

我看过一些代码示例，它们太复杂了。我看了几个，从一开始就喜欢教程。谢谢

听起来您只需要将内容添加为UIScrollView的子视图并添加手势识别器

将图像加载到UIImageView中。将UIImageView添加为UIScrollView的子视图

// do this in init or loadView or viewDidLoad, wherever is most appropriate
// imageView is a retained property
self.imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"image1.png"];
[scrollView addSubview:imageView];

// probably after the code above
UISwipeGestureRecognizer *swipe = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipe:);
[scrollView addGestureRecognizer:swipe];
[swipe release];

向UIScrollView添加UISweepGestureRecognitor

// do this in init or loadView or viewDidLoad, wherever is most appropriate
// imageView is a retained property
self.imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"image1.png"];
[scrollView addSubview:imageView];

// probably after the code above
UISwipeGestureRecognizer *swipe = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipe:);
[scrollView addGestureRecognizer:swipe];
[swipe release];

在UIWipegestureRecognitor处理程序上，在UIImageView中更改加载的图像

- (void)handleSwipe:(UIGestureRecognizer *)swipe {
  // do what you need to determine the next image
  imageView.image = [UIImage imageNamed:<your replacement image here>];
}

-（无效）无把手擦拭：（UIgestureRecognitor*）刷卡{
//执行确定下一个图像所需的操作
imageView.image=[UIImage ImageName:]；
}

听起来您只需要将内容添加为UIScrollView的子视图，并添加手势识别器

将图像加载到UIImageView中。将UIImageView添加为UIScrollView的子视图

// do this in init or loadView or viewDidLoad, wherever is most appropriate
// imageView is a retained property
self.imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"image1.png"];
[scrollView addSubview:imageView];

// probably after the code above
UISwipeGestureRecognizer *swipe = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipe:);
[scrollView addGestureRecognizer:swipe];
[swipe release];

向UIScrollView添加UISweepGestureRecognitor

// do this in init or loadView or viewDidLoad, wherever is most appropriate
// imageView is a retained property
self.imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"image1.png"];
[scrollView addSubview:imageView];

// probably after the code above
UISwipeGestureRecognizer *swipe = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipe:);
[scrollView addGestureRecognizer:swipe];
[swipe release];

在UIWipegestureRecognitor处理程序上，在UIImageView中更改加载的图像

- (void)handleSwipe:(UIGestureRecognizer *)swipe {
  // do what you need to determine the next image
  imageView.image = [UIImage imageNamed:<your replacement image here>];
}

-（无效）无把手擦拭：（UIgestureRecognitor*）刷卡{
//执行确定下一个图像所需的操作
imageView.image=[UIImage ImageName:]；
}

也许您想看看我的viewcontroller，它可以做到这一点。我写这篇文章是为了回答这个问题。
也许这对你来说太复杂了，但不会变得更容易。
这只是一个基本版本，它在开始时将所有图像加载到内存中。这在实际应用程序中不起作用。因此，您必须实现一些UIScrollView委托函数。复杂性就从这里开始

//  ImageViewController.h
//
//  Created by Matthias Bauch on 12.10.10.
//  Copyright 2010 Matthias Bauch. All rights reserved.
//

#import <UIKit/UIKit.h>

#warning this is just a quick hack, you should not use this if you dont understand this. There might be leaks, bugs and a lot of whatever.

@interface ImageViewController : UIViewController {
    NSString *imagePath;
}
@property (nonatomic, copy) NSString *imagePath;
- (id)initWithImageDirectory:(NSString*)imgPath;
@end


//
//  ImageViewController.m
//
//  Created by Matthias Bauch on 12.10.10.
//  Copyright 2010 Matthias Bauch. All rights reserved.
//

#import "ImageViewController.h"


@implementation ImageViewController
@synthesize imagePath;

- (id)initWithImageDirectory:(NSString*)imgPath {
    if (self = [super init]) {
        imagePath = [imgPath copy];
    }
    return self;
}


- (UIView *)viewFullOfImagesAtPath:(NSString *)path withSize:(CGSize)size {
    NSError *error = nil;
    NSArray *filenames = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:path error:&error];
    if (!filenames) {
        NSLog(@"Error accessing files: %@ [%@]", [error localizedDescription], error);
        return nil;
    }
    UIView *aView = [[UIView alloc] init];
    CGFloat xOffset = 0;
    for (NSString *filename in filenames) {
        NSString *fullPath = [path stringByAppendingPathComponent:filename];
        UIImage *image = [[[UIImage alloc] initWithContentsOfFile:fullPath] autorelease];
        if (!image)
            continue;
        CGRect frameRect = CGRectMake(xOffset, 0, size.width, size.height);
        UIImageView *imageView = [[[UIImageView alloc] initWithFrame:frameRect] autorelease];
        [imageView setImage:image];
        imageView.contentMode = UIViewContentModeScaleAspectFit;
        [aView addSubview:imageView];
        xOffset += size.width;
    }
    aView.frame = CGRectMake(0, 0, xOffset, size.height);
    return [aView autorelease];
}

- (void)viewDidLoad {
    [super viewDidLoad];

    UIScrollView *scrollView = [[[UIScrollView alloc] initWithFrame:self.view.bounds] autorelease];
    scrollView.pagingEnabled = YES;
    UIView *contentView = [self viewFullOfImagesAtPath:imagePath withSize:CGSizeMake(self.view.bounds.size.width, self.view.bounds.size.height)];
    NSLog(@"%f %f %f %f", contentView.frame.origin.x, contentView.frame.origin.y, contentView.frame.size.width, contentView.frame.size.height);
    [scrollView addSubview:contentView];
    scrollView.contentSize = CGSizeMake(CGRectGetWidth(contentView.frame), CGRectGetHeight(contentView.frame));
    [self.view addSubview:scrollView];
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
    // Overriden to allow any orientation.
    return YES;
}


- (void)didReceiveMemoryWarning {
    // Releases the view if it doesn't have a superview.
    [super didReceiveMemoryWarning];

    // Release any cached data, images, etc that aren't in use.
}


- (void)viewDidUnload {
    [super viewDidUnload];
    // Release any retained subviews of the main view.
    // e.g. self.myOutlet = nil;
}


- (void)dealloc {
    [imagePath release];
    [super dealloc];
}


@end

//ImageViewController.h
//
//由Matthias Bauch于2010年10月12日创作。
//版权所有2010马蒂亚斯·鲍奇。版权所有。
//
#进口
#警告：这只是一个快速破解，如果你不理解，就不应该使用它。可能会有漏洞、bug和其他很多东西。
@接口ImageViewController:UIViewController{
NSString*imagePath；
}
@属性（非原子，复制）NSString*imagePath；
-（id）initWithImageDirectory:（NSString*）imgPath；
@结束
//
//ImageViewController.m
//
//由Matthias Bauch于2010年10月12日创作。
//版权所有2010马蒂亚斯·鲍奇。版权所有。
//
#导入“ImageViewController.h”
@ImageViewController的实现
@综合成像路径；
-（id）initWithImageDirectory:（NSString*）imgPath{
if（self=[super init]）{
imagePath=[imgPath copy]；
}
回归自我；
}
-（UIView*）viewFullOfImagesAtPath:（NSString*）路径大小：（CGSize）大小{
n错误*错误=nil；
NSArray*文件名=[[NSFileManager defaultManager]目录目录路径：路径错误：&错误]；
如果（！文件名）{
NSLog（@“访问文件时出错：%@[%@]”，[Error localizedDescription]，错误）；
返回零；
}
UIView*aView=[[UIView alloc]init]；
CGFloat xOffset=0；
for（文件名中的NSString*文件名）{
NSString*fullPath=[path stringByAppendingPathComponent:filename]；
UIImage*image=[[UIImage alloc]initWithContentsOfFile:fullPath]autorelease]；
如果（！图像）
继续；
CGRect frameRect=CGRectMake（xOffset，0，size.width，size.height）；
UIImageView*imageView=[[UIImageView alloc]initWithFrame:frameRect]自动释放]；
[图像视图设置图像：图像]；
imageView.contentMode=UIViewContentModeScaleAspectFit；
[查看添加子视图：图像视图]；
xOffset+=大小.宽度；
}
aView.frame=CGRectMake（0，0，xOffset，size.height）；
返回[查看自动释放]；
}
-（无效）viewDidLoad{
[超级视图下载]；
UIScrollView*scrollView=[[UIScrollView alloc]initWithFrame:self.view.bounds]autorelease]；
scrollView.PaginEnabled=是；
UIView*contentView=[self-viewFullOfImagesAtPath:imagePath with-size:CGSizeMake（self.view.bounds.size.width，self.view.bounds.size.height）]；
NSLog（@%f%f%f），contentView.frame.origin.x，contentView.frame.origin.y，contentView.frame.size.width，contentView.frame.size.height）；
[滚动视图添加子视图：内容视图]；
scrollView.contentSize=CGSizeMake（CGRectGetWidth（contentView.frame），CGRectGetHeight（contentView.frame））；
[self.view addSubview:scrollView]；
}
-（布尔）应自动旋转指针面定向：（UIInterfaceOrientation）interfaceOrientation{
//覆盖以允许任何方向。
返回YES；
}
-（无效）未收到记忆警告{
//如果视图没有superview，则释放该视图。
[超级记忆警告]；
//释放所有未使用的缓存数据、图像等。
}
-（无效）视图卸载{
[超级视频下载]；
//释放主视图的所有保留子视图。
//例如，self.myOutlet=nil；
}
-（无效）解除锁定{
[图像路径释放]；
[super dealoc]；
}
@结束

也许您想看看我的viewcontroller，它可以做到这一点。我写这篇文章是为了回答这个问题。
也许这对你来说太复杂了，但不会变得更容易。
这只是一个基本版本，它在开始时将所有图像加载到内存中。这在实际应用程序中不起作用。因此，您必须实现一些UIScrollView委托函数。复杂性就从这里开始

//  ImageViewController.h
//
//  Created by Matthias Bauch on 12.10.10.
//  Copyright 2010 Matthias Bauch. All rights reserved.
//

#import <UIKit/UIKit.h>

#warning this is just a quick hack, you should not use this if you dont understand this. There might be leaks, bugs and a lot of whatever.

@interface ImageViewController : UIViewController {
    NSString *imagePath;
}
@property (nonatomic, copy) NSString *imagePath;
- (id)initWithImageDirectory:(NSString*)imgPath;
@end


//
//  ImageViewController.m
//
//  Created by Matthias Bauch on 12.10.10.
//  Copyright 2010 Matthias Bauch. All rights reserved.
//

#import "ImageViewController.h"


@implementation ImageViewController
@synthesize imagePath;

- (id)initWithImageDirectory:(NSString*)imgPath {
    if (self = [super init]) {
        imagePath = [imgPath copy];
    }
    return self;
}


- (UIView *)viewFullOfImagesAtPath:(NSString *)path withSize:(CGSize)size {
    NSError *error = nil;
    NSArray *filenames = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:path error:&error];
    if (!filenames) {
        NSLog(@"Error accessing files: %@ [%@]", [error localizedDescription], error);
        return nil;
    }
    UIView *aView = [[UIView alloc] init];
    CGFloat xOffset = 0;
    for (NSString *filename in filenames) {
        NSString *fullPath = [path stringByAppendingPathComponent:filename];
        UIImage *image = [[[UIImage alloc] initWithContentsOfFile:fullPath] autorelease];
        if (!image)
            continue;
        CGRect frameRect = CGRectMake(xOffset, 0, size.width, size.height);
        UIImageView *imageView = [[[UIImageView alloc] initWithFrame:frameRect] autorelease];
        [imageView setImage:image];
        imageView.contentMode = UIViewContentModeScaleAspectFit;
        [aView addSubview:imageView];
        xOffset += size.width;
    }
    aView.frame = CGRectMake(0, 0, xOffset, size.height);
    return [aView autorelease];
}

- (void)viewDidLoad {
    [super viewDidLoad];

    UIScrollView *scrollView = [[[UIScrollView alloc] initWithFrame:self.view.bounds] autorelease];
    scrollView.pagingEnabled = YES;
    UIView *contentView = [self viewFullOfImagesAtPath:imagePath withSize:CGSizeMake(self.view.bounds.size.width, self.view.bounds.size.height)];
    NSLog(@"%f %f %f %f", contentView.frame.origin.x, contentView.frame.origin.y, contentView.frame.size.width, contentView.frame.size.height);
    [scrollView addSubview:contentView];
    scrollView.contentSize = CGSizeMake(CGRectGetWidth(contentView.frame), CGRectGetHeight(contentView.frame));
    [self.view addSubview:scrollView];
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
    // Overriden to allow any orientation.
    return YES;
}


- (void)didReceiveMemoryWarning {
    // Releases the view if it doesn't have a superview.
    [super didReceiveMemoryWarning];

    // Release any cached data, images, etc that aren't in use.
}


- (void)viewDidUnload {
    [super viewDidUnload];
    // Release any retained subviews of the main view.
    // e.g. self.myOutlet = nil;
}


- (void)dealloc {
    [imagePath release];
    [super dealloc];
}


@end

//ImageViewController.h
//
//由Matthias Bauch于2010年10月12日创作。
//警察