import Foundation
import UIKit
class HomeVC: UIViewController {
//MARK: - Outlet
@IBOutlet weak var tblView: UITableView!
//------------------------------------------------------
//MARK: - Class Variable
private var viewModel : HomeVM = HomeVM()
var currentPage = 1
let refreshControl = UIRefreshControl()
let reachability = try! Reachability()
//------------------------------------------------------
//MARK: - Memory Management Method
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
deinit {
debugPrint("‼️‼️‼️ deinit : \(self.classForCoder) ‼️‼️‼️")
}
//------------------------------------------------------
//MARK: - Life Cycle Method
override func viewDidLoad() {
super.viewDidLoad()
// setUpView()
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
setUpView()
}
override func viewWillDisappear(_ animated: Bool) {
super.viewWillDisappear(animated)
}
override func viewDidDisappear(_ animated: Bool) {
super.viewDidDisappear(animated)
}
//------------------------------------------------------
//MARK: - Custom Method
private func setUpView() {
self.applyStyle()
self.setupViewModelObserver()
self.viewModel.apiCallHome(page: currentPage)
self.showToast(message: "Page \(currentPage)", font: .systemFont(ofSize: 17.0))
}
private func applyStyle(){
self.tblView.separatorStyle = .none
refreshControl.attributedTitle = NSAttributedString(string: "Pull to refresh")
refreshControl.addTarget(self, action: #selector(self.refresh(_:)), for: .valueChanged)
tblView.addSubview(refreshControl)
}
@objc func refresh(_ sender: AnyObject) {
// Code to refresh table view
self.currentPage = 1
self.viewModel.apiCallHome(page: currentPage)
self.showToast(message: "Page \(currentPage)", font: .systemFont(ofSize: 17.0))
self.refreshControl.endRefreshing()
}
/**
Setup all view model observer and handel data and erros.
*/
private func setupViewModelObserver() {
viewModel.eventHandler = { events in
switch events {
case .startLoading:
debugPrint("Start_Loading")
case .stopLoading:
debugPrint("Stop_Loading")
case .dataLoaded:
DispatchQueue.main.async {
self.tblView.reloadData()
}
case .message( let error):
debugPrint(error as Any)
}
}
}
//------------------------------------------------------
//MARK: - Action Method
//------------------------------------------------------
}
//MARK: - UITableViewDelegate and DataSource Methods -
extension HomeVC: UITableViewDelegate, UITableViewDataSource {
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return self.viewModel.arrHomeData.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "HomeTblCell", for: indexPath) as! HomeTblCell
let data = self.viewModel.arrHomeData[indexPath.row]
cell.imgAvatar.setImage(with: data.avatar ?? "")
cell.lblFname.text = data.firstName
cell.lblLName.text = data.lastName
indexPath.row % 2 == 0 ? (cell.vwContainer.backgroundColor = UIColor.systemGray6) : (cell.vwContainer.backgroundColor = UIColor.systemGray3)
return cell
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
let vc = UIStoryboard(name: "Main", bundle: Bundle.main).instantiateViewController(withIdentifier: "PageVC") as! PageVC
let data = self.viewModel.arrHomeData[indexPath.row]
vc.imageName = data.avatar
vc.fName = data.firstName
vc.lName = data.lastName
vc.email = data.email
self.navigationController?.pushViewController(vc, animated: true)
}
// func scrollViewDidScroll(_ scrollView: UIScrollView) {
// let height = scrollView.frame.size.height
// let contentYoffset = scrollView.contentOffset.y
// let distanceFromBottom = scrollView.contentSize.height - contentYoffset
// if distanceFromBottom < height {
// print("you reached end of the table")
// self.currentPage = 2
// self.viewModel.apiCallHome(page: currentPage)
// self.showToast(message: "Page \(currentPage)", font: .systemFont(ofSize: 17.0))
// }
// }
func scrollViewWillEndDragging(_ scrollView: UIScrollView, withVelocity velocity: CGPoint, targetContentOffset: UnsafeMutablePointer<CGPoint>) {
let offset: CGPoint = scrollView.contentOffset
let bounds: CGRect = scrollView.bounds
let size: CGSize = scrollView.contentSize
let inset: UIEdgeInsets = scrollView.contentInset
let y: CGFloat = offset.y + bounds.size.height - inset.bottom
let h: CGFloat = size.height
// print("offset: %f", offset.y)
// print("content.height: %f", size.height)
// print("bounds.height: %f", bounds.size.height)
// print("inset.top: %f", inset.top)
// print("inset.bottom: %f", inset.bottom)
// print("position: %f of %f", y, h)
let reloadDistance: CGFloat = 30
if (y > h + reloadDistance) {
print("load more rows")
self.currentPage = 2
self.viewModel.apiCallHome(page: currentPage)
self.showToast(message: "Page \(currentPage)", font: .systemFont(ofSize: 17.0))
}
}
private func isLastCell(indexPath: IndexPath) -> Bool {
print(indexPath)
if self.viewModel.arrHomeData.count > 0 {
return ((indexPath.section == indexPath.section-1) && (indexPath.row == (self.viewModel.arrHomeData.count-1)))
} else {
return false
}
}
}
extension UIViewController {
func showToast(message : String, font: UIFont) {
let toastLabel = UILabel(frame: CGRect(x: self.view.frame.size.width/2 - 75, y: self.view.frame.size.height-100, width: 150, height: 35))
toastLabel.backgroundColor = UIColor.black.withAlphaComponent(0.6)
toastLabel.textColor = UIColor.white
toastLabel.font = font
toastLabel.textAlignment = .center
toastLabel.text = message
toastLabel.alpha = 1.0
toastLabel.layer.cornerRadius = 10
toastLabel.clipsToBounds = true
self.view.addSubview(toastLabel)
UIView.animate(withDuration: 4.0, delay: 0.1, options: .curveEaseOut, animations: {
toastLabel.alpha = 0.0
}, completion: {(isCompleted) in
toastLabel.removeFromSuperview()
})
} }
我已经尝试过上述方法，是否还有其他方法可以在单个 ViewController 中使用 UIPageViewController 。 P.S：- 我不想为 UIPageViewController 创建单独的类，我只想按照上述方法使用它，所以如果有人知道使用此技术执行此操作的正确方法，请分享。
您的问题标题询问的是
UIPageViewControllerUIPageViewController您可以按原样使用页面视图控制器，也可以根据需要对其进行子类化。正如 DonMag 在他链接的答案中引用的那样，如果需要，您可以将页面视图控制器的视图作为另一个视图控制器的子视图。
我的建议是：创建一个客户视图控制器，其中包含
UIPageViewControllerUIPageViewController