我的tableView有问题
当我经常在ChatListViewController和detailViewcontroller之间推送/返回时,我会崩溃并在ListViewController中出错。
但我不知道我的数据在哪里崩溃
我猜我是否使用GCD来实现它?
有什么建议可以避免吗?
感谢。
崩溃日志:
致命错误:索引超出范围
型号:
class ChatroomList:Model {
var all:[Chatroom] {
var rooms:[Chatroom] = [Chatroom]()
self.chatrooms.forEach({ (id,chatroom) in
if showType.contains(chatroom.type) {
rooms.append(chatroom)
}
})
return rooms
}
}
的ViewController:
import RxCocoa
import RxSwift
import Alamofire
class ListViewController: UIViewController, UITableViewDataSource, UITableViewDelegate {
let chatrooms:ChatroomList = ChatroomList()
var list:[Chatroom] = [Chatroom]()
var subscribe:Disposable?
override func viewDidLoad() {
super.viewDidLoad()
self.tableView.dataSource = self
self.tableView.delegate = self
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
subscribe = rooms.notifySubject.subscribe({ json in
self.loadContents()
})
self.loadContents()
}
override func viewWillDisappear(_ animated: Bool) {
super.viewWillDisappear(animated)
subscribe?.dispose()
}
func loadContents() {
var idList:[String] = []
self.list.removeAll()
self.list = chatrooms.all
guard self.list.isEmpty == false else {
return
}
DispatchQueue.global().async() {
self.list = self.list.filter { (chatroom) -> Bool in
if chatroom.id.isEmpty {
return true
}
if idList.contains(chatroom.id) {
return false
}
idList.append(chatroom.id)
return true
}
self.list.sort(by: { (a,b) in
if a.message.datetime.isEmpty {
return false
}
return a.message.datetime > b.message.datetime
})
DispatchQueue.main.async() {
self.tableView.reloadData()
}
}
}
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return list.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
if list[indexPath.row].type == .city {
let cell: ChatroomCityTableViewCell = ChatroomCityTableViewCell(style: .default, reuseIdentifier: nil)
cell.loadByCityChatroom(chatroom: list[indexPath.row], cityId: list[indexPath.row].cityId)
return cell
}else{
let cell: ChatroomTableViewCell = ChatroomTableViewCell(style: .default, reuseIdentifier: nil)
cell.loadByChatroom(chatroom: list[indexPath.row])
return cell
}
}