iOS：如何使用Swift在视图之间滑动

Question

我是Swift和iOS开发的新手，我正在寻找如何设置主视图，我想要向右滑动第二个视图或向左移动第三个视图。 当我在第二个或第三个视图中时，应该可以滑回主视图。

我找到了几个想法如何实现这样的滑动视图： https://medium.com/swift-programming/ios-swipe-view-with-swift-44fa83a2e078

但是“问题”是，我想从主视图开始，可以向两个方向滑动。 （所以上面的解决方案从第二个视图开始）

有谁知道怎么做？

Answer 1

这很容易......

stackoverflow.com/a/26024779/294884

Answer 2

此代码与Swift＆amp; amp;故事板（在视图控制器中）：

import UIKit

class ViewController : UIViewController, UIPageViewControllerDataSource {
    var myViewControllers = Array(count: 3, repeatedValue:UIViewController())

    override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject!) {
        let pvc = segue.destinationViewController as UIPageViewController

        pvc.dataSource = self

       let storyboard = UIStoryboard(name: "Main", bundle: nil);

        var vc0 = storyboard.instantiateViewControllerWithIdentifier("shopID") as UIViewController
        var vc1 = storyboard.instantiateViewControllerWithIdentifier("startID") as UIViewController
        var vc2 = storyboard.instantiateViewControllerWithIdentifier("avatarID") as UIViewController

        self.myViewControllers = [vc0, vc1, vc2]

        pvc.setViewControllers([myViewControllers[1]], direction:.Forward, animated:false, completion:nil)

        println("Loaded")
    }

    func pageViewController(pageViewController: UIPageViewController, viewControllerAfterViewController viewController: UIViewController) -> UIViewController? {
        var currentIndex =  find(self.myViewControllers, viewController)!+1
        if currentIndex >= self.myViewControllers.count {
            return nil
        }
        return self.myViewControllers[currentIndex]
    }

    func pageViewController(pageViewController: UIPageViewController, viewControllerBeforeViewController viewController: UIViewController) -> UIViewController? {
        var currentIndex =  find(self.myViewControllers, viewController)!-1
        if currentIndex < 0 {
            return nil
        }
        return self.myViewControllers[currentIndex]
    }

}