import UIKit
class DWBTestViewController: UIViewController,UIPageViewControllerDataSource,UIPageViewControllerDelegate {
///懒加载一个page
private lazy var pageViewControllerMain:UIPageViewController = UIPageViewController(transitionStyle: .scroll, navigationOrientation: .horizontal, options: nil)
//数组
private lazy var dataSouceControll = [UIViewController]()
//获取索引
private lazy var nextIndex : Int = 0
//创建上面的滚动条
private lazy var scrollerView : UIScrollView = UIScrollView()
//子控制器1
private lazy var pageFirst : UIViewController = UIViewController()
//子控制器2
private lazy var pageTwo : UIViewController = UIViewController()
//子控制器3
private lazy var pageThree : UIViewController = UIViewController()
//子控制器4
private lazy var pagefouer : UIViewController = UIViewController()
override func viewDidLoad() {
super.viewDidLoad()
view.backgroundColor = UIColor.white
//创建导航栏
createSelfNav()
//创建UI
createPageUI()
}
/// 将要出现的时候影藏系统导航栏，这里创建导航栏
func createSelfNav(){
//导航栏父视图
let topView = UIView()
topView.frame = CGRect(x: 0, y: 0, width: SCREEN_WIDTH, height: 64)
topView.backgroundColor = UIColor.white
self.view.addSubview(topView)
//创建返回键
let buttonBack:UIButton = UIButton(type: .custom)
buttonBack.frame = CGRect(x:0,y:20,width:44,height:44)
buttonBack.setImage(UIImage(named: "返回"), for: .normal)
buttonBack.setTitleColor(UIColor.yellow, for: .normal)
buttonBack.addTarget(self, action:#selector(blaceAction), for: .touchUpInside)
topView.addSubview(buttonBack)
//创建标题
let labelTitle = UILabel()
labelTitle.frame = CGRect(x: 44, y: 20, width: SCREEN_WIDTH-88, height: 44)
labelTitle.text = "UIPageViewController"
labelTitle.font = UIFont.systemFont(ofSize: 18)
labelTitle.textColor = UIColor.black
labelTitle.textAlignment = .center
topView.addSubview(labelTitle)
//创建返回键
let buttonBackRight:UIButton = UIButton(type: .custom)
buttonBackRight.frame = CGRect(x:SCREEN_WIDTH-44,y:20,width:44,height:44)
buttonBackRight.setImage(UIImage(named: "悬浮分享"), for: .normal)
buttonBackRight.setTitleColor(UIColor.yellow, for: .normal)
buttonBackRight.tag = 112222
buttonBackRight.addTarget(self, action:#selector(blaceRightAction), for: .touchUpInside)
topView.addSubview(buttonBackRight)
//创建一条线
let imageLine = UIImageView()
imageLine.frame = CGRect(x: 0, y: 63, width: SCREEN_WIDTH, height: 1)
imageLine.backgroundColor = UIColor.groupTableViewBackground
topView.addSubview(imageLine)
}
//返回点击
func blaceAction(){
self.navigationController!.popViewController(animated: true)
}
//分享
func blaceRightAction() -> Void{
}
func createPageUI() {
pageViewControllerMain.view.frame = CGRect(x: 0, y: 64+33, width: SCREEN_WIDTH, height: SCREEN_HEIGHT-64-33)
pageViewControllerMain.delegate = self
pageViewControllerMain.dataSource = self
addChildViewController(pageViewControllerMain)
view.addSubview(pageViewControllerMain.view)
pageViewControllerMain.didMove(toParentViewController: self)
//添加字控制器
dataSouceControll += [pageFirst,pageTwo,pageThree,pagefouer]
// UIPageViewControllerNavigationDirection调用了此方法切换Controller的动画可以为从左往右和从右往左两种，如果animated属性设置为NO，则这个属性无效。是枚举类型，定义了以下两种通过此方法跳转的翻页方式。
//从左往右（或从下往上）：UIPageViewControllerNavigationDirectionForward;
//从左往右（或从下往上）： UIPageViewControllerNavigationDirectionReverse;
//设置默认显示控制器
pageViewControllerMain.setViewControllers([pageFirst], direction:.forward, animated: false, completion: nil)
view.gestureRecognizers = pageViewControllerMain.gestureRecognizers
///MARK--创建标题栏部分
scrollerView.frame = CGRect(x: 0, y: 64, width: SCREEN_WIDTH, height: 33)
scrollerView.showsVerticalScrollIndicator = false
scrollerView.showsHorizontalScrollIndicator = false
view.addSubview(scrollerView)
//设置滚动视图尺寸
scrollerView.contentSize = CGSize(width: SCREEN_WIDTH, height: 33)
//设置滚动标题
let arrayTitle = ["精选","直播","美妆","美搭"]
for i in 0..<self.dataSouceControll.count {
let button = UIButton()
button.frame = CGRect(x: 0.0 + SCREEN_WIDTH/CGFloat(self.dataSouceControll.count) * CGFloat(i), y: 0, width: SCREEN_WIDTH/CGFloat(self.dataSouceControll.count), height: 33)
button.setTitle(arrayTitle[i], for: .normal)
button.titleLabel?.font = UIFont.systemFont(ofSize: 14)
button.tag = i+1
button.setTitleColor(UIColor.black, for: .normal)
button.setTitleColor(UIColor.red, for: .selected)
button.addTarget(self, action: #selector(ActionButotn), for: .touchUpInside)
scrollerView.addSubview(button)
//标题下划线
let imgageLine = UIImageView()
imgageLine.frame = CGRect(x: 0.0 + SCREEN_WIDTH/CGFloat(self.dataSouceControll.count) * CGFloat(i), y: button.bottomY-2, width:SCREEN_WIDTH/CGFloat(self.dataSouceControll.count), height: 2)
imgageLine.backgroundColor = UIColor.red
imgageLine.tag = i+100
imgageLine.isHidden = true
scrollerView.addSubview(imgageLine)
if i==0 {
button.isSelected = true
imgageLine.isHidden = false
}
}
}
//标题点击事件
func ActionButotn(button:UIButton) {
//找到所有buton
for i in 0..<self.dataSouceControll.count {
let buttonAll = view.viewWithTag(i+1) as? UIButton
let imageLine = view.viewWithTag(i+100) as? UIImageView
if buttonAll?.tag == button.tag {
print(buttonAll?.tag ?? "没有找到button" )
buttonAll?.isSelected = true
imageLine?.isHidden = false
}else{
buttonAll?.isSelected = false
imageLine?.isHidden = true
}
}
//控制器改变，设置显示控制器
pageViewControllerMain.setViewControllers([self.dataSouceControll[button.tag-1]], direction:.forward, animated: false, completion: nil)
}
///MARK---UIPageViewController代理方法--------
//往左边滑动翻页会走此方法（类似pop回来）
// 这两个方法的使用很相似, 都是根据当前的控制器, 获取当前控制器的索引, 然后修改索引(加1或者减1)来获取下一个控制器, 并返回;
func pageViewController(_ pageViewController: UIPageViewController, viewControllerBefore viewController: UIViewController) -> UIViewController?
{
let index = self.dataSouceControll.index(of: viewController)
if (index == 0) || (index == NSNotFound) {
return nil
}
//守护，防止空值在解包时崩溃
guard let index1 = index else {
return nil
}
// 此处index必须减一
return dataSouceControll[index1 - 1]
}
//往左边滑动翻页会走此方法（类似push下去）
func pageViewController(_ pageViewController: UIPageViewController, viewControllerAfter viewController: UIViewController) -> UIViewController?
{
//获取当前控制器索引
let index = self.dataSouceControll.index(of: viewController)
if index == NSNotFound {
return nil
}
if (index == self.dataSouceControll.count-1) {
//防止越界,必须要设置
return nil
}
//守护，防止空值在解包时崩溃
guard let index1 = index else {
return nil
}
return dataSouceControll[index1+1]
}
// 取消pageControl，想要取消白点显示，只要不设定以下dataSource方法即可。
func presentationCountForPageViewController(pageViewController: UIPageViewController) -> Int
{
return self.dataSouceControll.count
}
//跟页码有关
func presentationIndexForPageViewController(pageViewController: UIPageViewController) -> Int
{
return 0
}
// 下面一个问题,就是如何获取下一个控制器的索引, 在上面两个数据源方法里无法获取准确的索引, 而应该在下面这个方法里获取:
func pageViewController(_ pageViewController: UIPageViewController, willTransitionTo pendingViewControllers: [UIViewController]) {
let controller = pendingViewControllers[0]
self.nextIndex = self.dataSouceControll.index(of: controller)!
}
//还有一个非常有用的代理，它在动画执行完毕后被调用，在controller切换完成后，我们可以在这个代理中进行一些后续操作。例如用UIPageViewController实现轮播分页等功能。
func pageViewController(_ pageViewController: UIPageViewController, didFinishAnimating finished: Bool, previousViewControllers: [UIViewController], transitionCompleted completed: Bool) {
if completed {
print(self.nextIndex)
//找到所有buton
for i in 0..<self.dataSouceControll.count {
let buttonAll = view.viewWithTag(i+1) as? UIButton
let imageLine = view.viewWithTag(i+100) as? UIImageView
if i == self.nextIndex {
buttonAll?.isSelected = true
imageLine?.isHidden = false
}else{
buttonAll?.isSelected = false
imageLine?.isHidden = true
}
}
}
}
//视图将要出现的时候执行
override func viewWillAppear(_ animated: Bool) {
print("将要出现")
//影藏导航栏
self.navigationController?.isNavigationBarHidden = true
//影藏tabbar
self.tabBarController?.tabBar.isHidden = true
//友盟统计开始(swift)
MobClick.beginLogPageView("\(type(of: self))")
}
//视图将要消失的时候执行
override func viewWillDisappear(_ animated: Bool) {
print("将要消失")
//友盟统计结束(swift)
MobClick.endLogPageView("\(type(of: self))")
}
// Swift里面舍弃了OC的dealloc方法，经过笔者多方查阅资料下面方法可以替代dealloc方法
deinit {
print("走了dealloc")
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
/*
// MARK: - Navigation
// In a storyboard-based application, you will often want to do a little preparation before navigation
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
// Get the new view controller using segue.destinationViewController.
// Pass the selected object to the new view controller.
}
*/
}
网友评论