1. 拉一個 PageViewController
2. 開多個 ViewControl
3. 概念大概是一個底頁(MorePageViewController) 上面有一層頁面作切換
//
// MorePageViewController.swift
// tempertureBLE
//
// Created by Quanta.ux on 2017/3/1.
// Copyright © 2017年 QuantaPDC. All rights reserved.
//
import UIKit
class MorePageViewController: UIPageViewController,UIPageViewControllerDataSource, UIPageViewControllerDelegate {
lazy var VCArr:[UIViewController] = {
return[self.VCInstance(name:"FirstVC"),
self.VCInstance(name:"SecondVC"),
self.VCInstance(name:"ThirdVC")]
}()
private func VCInstance(name:String)->UIViewController{
return UIStoryboard(name:"Main" , bundle:nil).instantiateViewController(withIdentifier: name)
}
override func viewDidLoad() {
super.viewDidLoad()
self.dataSource = self
self.delegate = self
if let firstVC = VCArr.first{
setViewControllers([firstVC], direction: .forward, animated: true, completion: nil)
}
// Do any additional setup after loading the view.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
public func pageViewController(_ pageViewController: UIPageViewController, viewControllerBefore viewController: UIViewController) -> UIViewController?{
guard let viewControllerIndex = VCArr.index(of: viewController) else{
return nil
}
let previousIndex = viewControllerIndex-1
guard previousIndex >= 0 else{
return VCArr.last
}
guard VCArr.count > previousIndex else {
return nil
}
return VCArr[previousIndex]
}
public func pageViewController(_ pageViewController: UIPageViewController, viewControllerAfter viewController: UIViewController) -> UIViewController?{
guard let viewControllerIndex = VCArr.index(of: viewController) else{
return nil
}
let nextIndex = viewControllerIndex+1
guard nextIndex < VCArr.count else{
return VCArr.first
}
guard VCArr.count > nextIndex else {
return nil
}
return VCArr[nextIndex]
}
public func presentationCount(for pageViewController: UIPageViewController) -> Int{
return VCArr.count
}// The number of items reflected in the page indicator.
public func presentationIndex(for pageViewController: UIPageViewController) -> Int{
guard let firstViewController = viewControllers?.first,
let firstViewControllerIndex = VCArr.index(of: firstViewController) else{
return 0
}
return firstViewControllerIndex
}// The selected item reflected in the page indicator.
}
