如何在UIPageViewController上添加新页面？

I just created a New Xcode Project as a Page-Based Application and I want to add a new button that will create a new page on runtime. How can I do that?

我刚刚创建了一个新的Xcode项目作为基于页面的应用程序，我想添加一个新的按钮，它将在运行时创建一个新的页面。我怎样才能做到这一点？

Actually, an app called "Dwindle" has it. It's free to download, just saying it for if someone wants to know what I am talking about.

实际上，一款名为“Dwindle”的应用程序拥有它。它可以免费下载，只是说如果有人想知道我在说什么。

Thanks for help.

感谢帮助。

1 个解决方案

#1

This can be achieved. The UIPageViewController calculates the number of pages it has, from the delegate method - presentationCountForPageViewController:. You can add a property in your class for example:

这可以实现。 UIPageViewController从委托方法 - presentationCountForPageViewController：计算它拥有的页数。您可以在类中添加属性，例如：

@property int total;

And you can return the property value from the delegate method this way.

并且您可以通过这种方式从委托方法返回属性值。

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

And whenever an event occurs (Ex button click that you mentioned) - you can increment the value for the property - total and re-render the pageViewController using the method - setViewControllers: .

每当事件发生时（Ex按钮单击你提到的） - 你可以增加属性的值 - total并使用方法重新渲染pageViewController - setViewControllers :.

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

This will reload the pageViewController with the new value of total.

这将使用新值total重新加载pageViewController。

#1