删除PageViewController

Question

我在AppCoda上使用了一个教程来添加一种教程样式的UIPageViewController - 它的工作效果令人惊讶 - 只是我无法通过点击按钮将其删除。

这是我的PageViewController：

#import "startupViewController.h"
#import "SKSlideViewController.h"
#import "APPChildViewController.h"

@interface startupViewController ()
@end
@implementation startupViewController
@synthesize outletWallpaper;

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

- (void)viewDidLoad
{
    [super viewDidLoad];
    [self mymethod];
}

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

- (void)mymethod {

    self.pageController = [[UIPageViewController alloc] initWithTransitionStyle:UIPageViewControllerTransitionStyleScroll navigationOrientation:UIPageViewControllerNavigationOrientationHorizontal options:nil];

    self.pageController.dataSource = self;
    [[self.pageController view] setFrame:[[self view] bounds]];

    APPChildViewController *initialViewController = [self viewControllerAtIndex:0];

    NSArray *viewControllers = [NSArray arrayWithObject:initialViewController];

    [self.pageController setViewControllers:viewControllers direction:UIPageViewControllerNavigationDirectionForward animated:NO completion:nil];

    [self addChildViewController:self.pageController];
    [[self view] addSubview:[self.pageController view]];
    [self.pageController didMoveToParentViewController:self];

}

- (APPChildViewController *)viewControllerAtIndex:(NSUInteger)index {

    APPChildViewController *childViewController = [[APPChildViewController alloc] initWithNibName:@"APPChildViewController" bundle:nil];
    childViewController.index = index;

    return childViewController;

}

- (UIViewController *)pageViewController:(UIPageViewController *)pageViewController viewControllerBeforeViewController:(UIViewController *)viewController {

    NSUInteger index = [(APPChildViewController *)viewController index];

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

    // Decrease the index by 1 to return
    index--;

    return [self viewControllerAtIndex:index];

}

- (UIViewController *)pageViewController:(UIPageViewController *)pageViewController viewControllerAfterViewController:(UIViewController *)viewController {

    NSUInteger index = [(APPChildViewController *)viewController index];

    index++;

    if (index == 3) {
        return nil;
    }

    return [self viewControllerAtIndex:index];

}

- (NSInteger)presentationCountForPageViewController:(UIPageViewController *)pageViewController {
    // The number of items reflected in the page indicator.
    return 3;
}

- (NSInteger)presentationIndexForPageViewController:(UIPageViewController *)pageViewController {
    // The selected item reflected in the page indicator.
    return 0;
}

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender{

    NSLog(@"Switching View Controllers...");

        SKSlideViewController *slideController=(SKSlideViewController *)[segue destinationViewController];
        [slideController setStoryBoardIDForMainController:@"MainVC" leftController:@"LeftVC" rightController:@"RightVC"];
        [slideController reloadControllers];

}

@end

此代码将我发送到另一个文件，从那里，我需要删除整个文件。

Answer 1

我想我在appcoda做了同样的教程，并且有同样的问题！

一个对我有用的解决方案我偶然发现another question：

// Replace deleteVC with your UIPageViewController
[deleteVC willMoveToParentViewController:nil];
[deleteVC.view removeFromSuperview];
[deleteVC removeFromParentViewController]; 

Answer 2

var movingIndex = 0
var forwardDirection = false

    if selectedIndex == images.count{ //ur pages dataSource You may not need this
            movingIndex = selectedIndex - 1
            forwardDirection = false
        } else {
            movingIndex = selectedIndex
            forwardDirection = true
        }
    
    controllers.remove(at: selectedIndex)
    capturedInspectionPhotoView.imagePageController?.dataSource = self
    capturedInspectionPhotoView.imagePageController?.setViewControllers([controllers[movingIndex]],
                                            direction: forwardDirection ? .forward : .reverse, animated: true)