ios - 点击 pageControl 滚动到另一个 View (点击圆点)
<p><p>我已经为 PageViewControll 设置了 2 个 View 。
我能够在 View 之间移动,并且 pageControl(点)对应于正确的页面 - 但是点击这些点还不能滚动到正确的 View 。 </p>
<p>我在这里找到了一些关于如何创建函数的答案,但未能成功实现使其工作。
页面 Controller 的代码如下(没有点击功能)
完整代码是:</p>
<pre><code>func configurePageControl() {
pageControl = UIPageControl(frame: CGRect(x: 0,y: UIScreen.main.bounds.maxY - 50,width: UIScreen.main.bounds.width,height: 50))
self.pageControl.numberOfPages = viewControllerList.count
self.pageControl.currentPage = 0
self.pageControl.alpha = 0.5
self.pageControl.tintColor = UIColor.white
self.pageControl.pageIndicatorTintColor = UIColor.black
self.pageControl.currentPageIndicatorTintColor = UIColor.white
self.view.addSubview(pageControl)
}
@IBAction func pageControltapped(_ sender: Any) {
guard let pageControl = sender as? UIPageControl else { return }
let selectedPage = pageControl.currentPage
self.setViewControllers(], direction: .forward, animated: true, completion: nil)
}
}
</code></pre>
<p>感谢您的帮助!!</p></p>
<br><hr><h1><strong>Best Answer-推荐答案</ strong></h1><br>
<p><ol>
<li><p>您需要为 <code>pageControl</code> 创建 IBAction,您可以从中检测出哪个点被点击。 </p></li>
<li><p>然后,您需要使用 <code>setViewControllers(_:direction:animated:completion:)</code> 方法以编程方式滚动页面。</p>
<pre><code>func setViewControllers(_ viewControllers: ?,
direction: UIPageViewController.NavigationDirection,
animated: Bool,
completion: ((Bool) -> Void)? = nil)
</code></pre>
<p> <a href="https://developer.apple.com/documentation/uikit/uipageviewcontroller/1614087-setviewcontrollers" rel="noreferrer noopener nofollow">Here's the link to documentation</a> </p></li>
</ol>
<p><strong>使用以下代码:</strong></p>
<pre><code>@IBAction func pageControltapped(_ sender: Any) {
guard let pageControl = sender as? UIPageControl else { return }
let selectedPage = pageControl.currentPage
self.setViewControllers(], direction: .forward, animated: true, completion: nil)
}
</code></pre>
<p><strong>为 pageControl 添加目标以将其与 IBAction 链接:</strong></p>
<pre><code>func configurePageControl() {
//...your code as it is....
//add following line
self.pageControl.addTarget(self, action: #selector(pageControltapped(_:)), for: .touchUpInside)
}
</code></pre></p>
<p style="font-size: 20px;">关于ios - 点击 pageControl 滚动到另一个 View (点击圆点),我们在Stack Overflow上找到一个类似的问题:
<a href="https://stackoverflow.com/questions/55405731/" rel="noreferrer noopener nofollow" style="color: red;">
https://stackoverflow.com/questions/55405731/
</a>
</p>
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