我的代码是一个uiscrolview有两个页面和一个按钮。问题是,如果我在视图控制器信息(中间图像)。然后点击按钮返回到滚动查看它回到页面1.所以无论从信息幻灯片到滚动视图,它总是回到查看控制器1,并且循环重置。如果我在vc 2上打信息按钮,请转到信息幻灯片。如果我按下了信息幻灯片上的按钮,我想返回到vc 2.我的代码如下。本质上,循环总是重置,如果可能,我想修复。循环重置在滚动视图(swift3)
import UIKit
class ViewController: UIViewController, UIScrollViewDelegate {
@IBOutlet var pageControl: UIPageControl!
@IBOutlet var slideScrollView: UIScrollView!
override func viewDidLoad() {
super.viewDidLoad()
slideScrollView.delegate = self
let slides:[slide] = createSlides()
setupSlideScrollView(slides: slides)
pageControl.numberOfPages = slides.count
pageControl.currentPage = 0
view.bringSubview(toFront: pageControl)
}
override var prefersStatusBarHidden: Bool {
return true
}
func createSlides() -> [slide]{
let slide1:slide = Bundle.main.loadNibNamed("slide", owner: self, options: nil)?.first as! slide
slide1.label.text = "1"
let slide2:slide = Bundle.main.loadNibNamed("slide", owner: self, options: nil)?.first as! slide
slide2.label.text = "2"
return [slide1,slide2 ]
}
func setupSlideScrollView(slides:[slide]) {
slideScrollView.frame = CGRect(x: 0, y: 0, width: view.frame.width, height: view.frame.height)
slideScrollView.contentSize = CGSize(width: view.frame.width * CGFloat(slides.count), height: view.frame.height)
for i in 0..<slides.count{
slides[i].frame = CGRect(x: view.frame.width * CGFloat(i), y: 0, width: view.frame.width, height: view.frame.height)
slideScrollView.addSubview(slides[i])
slideScrollView.isPagingEnabled = true
}
}
func scrollViewDidScroll(_ scrollView: UIScrollView) {
let pageIndex = round(scrollView.contentOffset.x/view.frame.width)
pageControl.currentPage = Int(pageIndex)
}}
在文本和代码行之间插入三个大尺寸图像的要点是什么?你真的需要让人们看到他们的规模? –
添加信息控制器的按钮动作代码。 –