将 UIPageViewController 添加到子视图中，子视图仅显示 pageContentview 的边缘

Question

我正在尝试在 rootViewController 上的子视图中显示整个 pageContentView 。我可以看到 pageView，但它不会正确自动调整大小以适合 SubView，它只显示 pageContentView 的截断部分

这是它的样子

它应该是这样的

我不知道如何调整 pageView 的大小，以便它在子视图中正确显示。

根视图控制器.h

#import <UIKit/UIKit.h>
#import "PageContentViewController.h"
@class PageContentViewController;

@interface CLDViewController : UIViewController <UIPageViewControllerDataSource>

@property (weak, nonatomic) IBOutlet UIView *subViewRoot;
- (IBAction)startWalkthrough:(id)sender;
@property (strong, nonatomic) UIPageViewController *pageViewController;
@property (strong, nonatomic) NSArray *pageTitles;
@property (strong, nonatomic) NSArray *pageImages;

@property (strong,nonatomic) PageContentViewController *bounds;
@end

RootController 中的 ViewDidLoad 和 UIPageViewController 所需的方法

   - (void)viewDidLoad
 {

    [super viewDidLoad];

    _pageTitles = @[@"Over 200 Tips and Tricks", @"Discover Hidden Features", @"Bookmark Favorite Tip", @"Free Regular Update"];
    _pageImages = @[@"page1.png", @"page2.png", @"page3.png", @"page4.png"];

    // Create page view controller
    self.pageViewController = [self.storyboard instantiateViewControllerWithIdentifier:@"PageViewController"];
    self.pageViewController.dataSource = self;

    PageContentViewController *startingViewController = [self viewControllerAtIndex:0];
    NSArray *viewControllers = @[startingViewController];
    [self.pageViewController setViewControllers:viewControllers direction:UIPageViewControllerNavigationDirectionForward animated:NO completion:nil];

    //Trying to setup the pageViewContoller view to be inside the subview (subViewRoot)
    self.pageViewController.view.frame = self.subViewRoot.bounds;
    [self addChildViewController:_pageViewController];
    [self.subViewRoot addSubview:_pageViewController.view];
    [self.pageViewController didMoveToParentViewController:self];


}


    - (PageContentViewController *)viewControllerAtIndex:(NSUInteger)index
{
    if (([self.pageTitles count] == 0) || (index >= [self.pageTitles count])) {
        return nil;
    }

    // Create a new view controller and pass suitable data.
    PageContentViewController *pageContentViewController = [self.storyboard instantiateViewControllerWithIdentifier:@"PageContentViewController"];
    pageContentViewController.imageFile = self.pageImages[index];
    pageContentViewController.titleText = self.pageTitles[index];
    pageContentViewController.pageIndex = index;

    return pageContentViewController;
}


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

#pragma mark - Page View Controller Data Source



- (UIViewController *)pageViewController:(UIPageViewController *)pageViewController viewControllerBeforeViewController:(UIViewController *)viewController
{
    NSUInteger index = ((PageContentViewController*) viewController).pageIndex;

    if ((index == 0) || (index == NSNotFound)) {
        return nil;
    }

    index--;
    return [self viewControllerAtIndex:index];
}

- (UIViewController *)pageViewController:(UIPageViewController *)pageViewController viewControllerAfterViewController:(UIViewController *)viewController
{
    NSUInteger index = ((PageContentViewController*) viewController).pageIndex;

    if (index == NSNotFound) {
        return nil;
    }

    index++;
    if (index == [self.pageTitles count]) {
        return nil;
    }
    return [self viewControllerAtIndex:index];
}

- (NSInteger)presentationCountForPageViewController:(UIPageViewController *)pageViewController
{
    return [self.pageTitles count];
}

- (NSInteger)presentationIndexForPageViewController:(UIPageViewController *)pageViewController
{
    return 0;
}

PageContentViewController.m

-viewDidLoad

- (void)viewDidLoad
{
    [super viewDidLoad];

    self.backgroundImageView.image = [UIImage imageNamed:self.imageFile];
    self.titleLabl.text = self.titleText;

}

以前有人遇到过这种情况吗？你做了什么？

谢谢您的帮助！

Answer 1

由于您要将框架设置UIPageViewController为“子视图”占位符视图的框架，因此您需要确保在加载视图时占位符的框架是准确的。从 xib 加载的 ViewController 通常没有有用的框架，直到它们的视图被添加到某个地方，它们的子视图也是如此。viewWillAppear通常是您可以确保 viewController 的视图设置正确的最快时间。

禁用自动布局是可行的，但是一旦您学会了如何使用它，自动布局就会成为一个很好的功能。subViewRoot在这种情况下，您可以向其父视图添加约束- 前导、尾随、顶部和底部。控制从subViewRoot到父级的拖动是一个简单的快捷方式。