我在功能方面遇到问题，您可以删除单元格，然后使用Alamofire JSON请求进行删除和事件。 当我滑动单元格并单击“删除”时，应用程序崩溃，但是事件被成功删除并且没有错误，事实上，在Laravel方面，我将事件删除了。 我尝试了所有操作，但我真的不知道如何解决崩溃问题。 有人可以帮我吗？
这是我的.Swift代码：
import UIKit
import Alamofire
class EventViewController: UITableViewController {
@objc var transition = ElasticTransition()
@objc let lgr = UIScreenEdgePanGestureRecognizer()
@objc let rgr = UIScreenEdgePanGestureRecognizer()
let rc = UIRefreshControl()
@IBOutlet weak var myTableView: UITableView!
var myTableViewDataSource = [NewInfo]()
let url = URL(string: "http://ns7records.com/staffapp/api/events/index")
override func viewDidLoad() {
super.viewDidLoad()
loadList()
// Add Refresh Control to Table View
if #available(iOS 10.0, *) {
tableView.refreshControl = rc
} else {
tableView.addSubview(rc)
}
// Configure Refresh Control
rc.addTarget(self, action: #selector(refreshTableData(_:)), for: .valueChanged)
let attributesRefresh = [kCTForegroundColorAttributeName: UIColor.white]
rc.attributedTitle = NSAttributedString(string: "Caricamento ...", attributes: attributesRefresh as [NSAttributedStringKey : Any])
DispatchQueue.main.async {
}
// MENU Core
// customization
transition.sticky = true
transition.showShadow = true
transition.panThreshold = 0.3
transition.transformType = .translateMid
// menu// gesture recognizer
lgr.addTarget(self, action: #selector(MyProfileViewController.handlePan(_:)))
rgr.addTarget(self, action: #selector(MyProfileViewController.handleRightPan(_:)))
lgr.edges = .left
rgr.edges = .right
view.addGestureRecognizer(lgr)
view.addGestureRecognizer(rgr)
}
@objc private func refreshTableData(_ sender: Any) {
// Fetch Table Data
//myTableViewDataSource.removeAll()
tableView.reloadData()
loadList()
}
func loadList(){
var myNews = NewInfo()
// URLSession.shared.dataTask(with: url!, completionHandler: { (data, response, error) in
//
// })
let task = URLSession.shared.dataTask(with:url!) {
(data, response, error) in
if error != nil
{
print("ERROR HERE..")
}else
{
do
{
if let content = data
{
let myJson = try JSONSerialization.jsonObject(with: content, options: .mutableContainers)
//print(myJson)
if let jsonData = myJson as? [String : Any]
{
if let myResults = jsonData["data"] as? [[String : Any]]
{
//dump(myResults)
for value in myResults
{
if let myTitle = value["title"] as? String
{
//print(myTitle)
myNews.displayTitle = myTitle
}
if let myLocation = value["local"] as? String
{
myNews.location = myLocation
}
if let myDate = value["date"] as? String
{
myNews.date = myDate
}
if let myDescription = value["description"] as? String
{
myNews.description = myDescription
}
if let myCost = value["cost"] as? String
{
myNews.cost = myCost
}
if let myNumMembers = value["num_members"] as? String
{
myNews.num_members = myNumMembers
}
if let myNumMembers_conf = value["num_members_confirmed"] as? String
{
myNews.num_members_confirmed = myNumMembers_conf
}
if let myStartEvent = value["time_start"] as? String
{
myNews.startEvent = myStartEvent
}
if let myEndEvent = value["time_end"] as? String
{
myNews.endEvent = myEndEvent
}
if let myId = value["id"] as? Int
{
myNews.idEvent = myId
}
//x img
// if let myMultimedia = value["data"] as? [String : Any]
// {
if let mySrc = value["event_photo"] as? String
{
myNews.event_photo = mySrc
print(mySrc)
}
self.myTableViewDataSource.append(myNews)
}//end loop
dump(self.myTableViewDataSource)
DispatchQueue.main.async
{
self.tableView.reloadData()
self.rc.endRefreshing()
}
}
}
}
}
catch{
}
}
}
task.resume()
}
override func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath)->CGFloat {
return 150
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return myTableViewDataSource.count
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let myCell = tableView.dequeueReusableCell(withIdentifier: "reuseCell", for: indexPath)
let myImageView = myCell.viewWithTag(11) as! UIImageView
let myTitleLabel = myCell.viewWithTag(12) as! UILabel
let myLocation = myCell.viewWithTag(13) as! UILabel
let DateLabelCell = myCell.viewWithTag(14) as! UILabel
let numMembLabel = myCell.viewWithTag(15) as! UILabel
let numMembConfLabel = myCell.viewWithTag(16) as! UILabel
myTitleLabel.text = myTableViewDataSource[indexPath.row].displayTitle
myLocation.text = myTableViewDataSource[indexPath.row].location
DateLabelCell.text = myTableViewDataSource[indexPath.row].date
numMembLabel.text = myTableViewDataSource[indexPath.row].num_members
numMembConfLabel.text = myTableViewDataSource[indexPath.row].num_members_confirmed
if let imageURLString = myTableViewDataSource[indexPath.row].event_photo,
let imageURL = URL(string: AppConfig.public_server + imageURLString) {
myImageView.af_setImage(withURL: imageURL)
}
return myCell
}
//per passare da un viewcontroller a detailviewcontroller
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if let destination = segue.destination as? EventDetailViewController {
destination.model = myTableViewDataSource[(tableView.indexPathForSelectedRow?.row)!]
// Effetto onda
let vc = segue.destination
vc.transitioningDelegate = transition
vc.modalPresentationStyle = .custom
}
//menu
if let vc = segue.destination as? MenuViewController{
vc.transitioningDelegate = transition
vc.modalPresentationStyle = .custom
//endmenu
}
}
//menu slide
@objc func handlePan(_ pan:UIPanGestureRecognizer){
if pan.state == .began{
transition.edge = .left
transition.startInteractiveTransition(self, segueIdentifier: "menu", gestureRecognizer: pan)
}else{
_ = transition.updateInteractiveTransition(gestureRecognizer: pan)
}
}
//endmenuslide
////ximg
func loadImage(url: String, to imageView: UIImageView)
{
let url = URL(string: url )
URLSession.shared.dataTask(with: url!) { (data, response, error) in
guard let data = data else
{
return
}
DispatchQueue.main.async
{
imageView.image = UIImage(data: data)
}
}.resume()
}
/// star to: (x eliminare row e x muove row)
override func tableView(_ tableView: UITableView, moveRowAt sourceIndexPath: IndexPath, to destinationIndexPath: IndexPath) {
let movedObjTemp = myTableViewDataSource[sourceIndexPath.item]
myTableViewDataSource.remove(at: sourceIndexPath.item)
myTableViewDataSource.insert(movedObjTemp, at: destinationIndexPath.item)
}
override func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCellEditingStyle, forRowAt indexPath: IndexPath) {
if (editingStyle == .delete){
// print(parameters)
let idEvent = (myTableViewDataSource[indexPath.item].idEvent)
let parameters = [
// "id": UserDefaults.standard.object(forKey: "userid")! ,
"id" : idEvent,
] as [String : Any]
let url = "http://www.ns7records.com/staffapp/public/api/deleteevent"
print(url)
Alamofire.request(url, method:.post, parameters:parameters,encoding: JSONEncoding.default).responseJSON { response in
switch response.result {
case .success:
print(response)
let JSON = response.result.value as? [String : Any]
//self.myTableView.reloadData()
let alert = UIAlertController(title: "Yeah!", message: "Evento modificato con successo!", preferredStyle: UIAlertControllerStyle.alert)
alert.addAction(UIAlertAction(title: "OK", style: UIAlertActionStyle.destructive, handler: nil))
self.present(alert, animated: true, completion: nil)
// let data = JSON! ["data"] as! NSDictionary
if let jsonData = JSON as? [String : Any]
{
print(jsonData)
self.myTableViewDataSource.remove(at : indexPath.item)
self.myTableView.deleteRows(at: [indexPath], with: .automatic)
let indexPath = IndexPath(item: 0, section: 0)
//self.myTableView.deleteRows(at: [indexPath], with: .fade)
//self.myTableView.reloadData()
// }
// }
//}
}
case .failure(let error):
print(error)
let alert = UIAlertController(title: "Aia", message: "Non puoi cancellare questo evento!", preferredStyle: UIAlertControllerStyle.alert)
alert.addAction(UIAlertAction(title: "OK", style: UIAlertActionStyle.destructive, handler: nil))
self.present(alert, animated: true, completion: nil)
}
}
}
}
@IBAction func EditButtonTableView(_ sender: UIBarButtonItem) {
self.myTableView.isEditing = !self.myTableView.isEditing
sender.title = (self.myTableView.isEditing) ? "Done" : "Edit"
}
/// end to: (x eliminare row e x muove row)
}
// MARK: -
// MARK: UITableView Delegate
extension ViewController: UITableViewDelegate {
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
tableView.deselectRow(at: indexPath, animated: true)
}
}