我似乎无法使用自定义单元格来运行此tableView。我收到运行时错误
因未捕获的异常终止应用＆＃39; NSUnknownKeyException＆＃39;， 原因：＆＃39; [setValue：forUndefinedKey：]：这个类不是键 符合编码标准的密钥causeCampaignDescription。＆＃39;
奇怪的是，该属性不再被称为那样。这是单元格文件 MainViewControllerTableViewCell
//
// MainViewControllerTableViewCell.swift
//
//
// Created by on 9/13/17.
// Copyright © 201. All rights reserved.
//
import UIKit
class MainViewControllerTableViewCell: UITableViewCell {
@IBOutlet weak var causeCampaignImageView: UIImageView!
@IBOutlet weak var causeDescription: UILabel!
@IBOutlet weak var daysToFinishLabel: UILabel!
@IBOutlet weak var raisedOverTotalLabel: UILabel!
@IBOutlet weak var percentageCompletedLabel: UILabel!
@IBOutlet weak var goalProgresView: UIProgressView!
//card used on
@IBInspectable var cornerradius : CGFloat = 2
@IBInspectable var shadowOffSetWidth : CGFloat = 0
@IBInspectable var shadowOffSetHeight : CGFloat = 5
@IBInspectable var shadowColor : UIColor = UIColor.black
@IBInspectable var shadowOpacity : CGFloat = 0.5
override func awakeFromNib() {
super.awakeFromNib()
// Initialization code
}
override func setSelected(_ selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
// Configure the view for the selected state
}
override func layoutSubviews() {
layer.cornerRadius = cornerradius
layer.shadowColor = shadowColor.cgColor
layer.shadowOffset = CGSize(width: shadowOffSetWidth, height: shadowOffSetHeight)
let shadowPath = UIBezierPath(roundedRect: bounds, cornerRadius: cornerradius)
layer.shadowPath = shadowPath.cgPath
layer.shadowOpacity = Float(shadowOpacity)
}
}
这是保存表视图的视图控制器 MainViewController ：
//
// ViewController.swift
//
//
// Created by on 1/28/17.
// Copyright © 2017. All rights reserved.
//
import UIKit
import Alamofire
import SwiftyJSON
import Firebase
class MainViewController: UIViewController,UITableViewDelegate,UITableViewDataSource {
var campaignRowsData = [CauseCampaign]()
var serverFetchCampaignsUrl = Config.Global._serverUrl
@IBOutlet weak var campaignTableView: UITableView!
//show navigation controller bar
var facebookID = "", twitterID = "",firebaseID = ""
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
//hide bar from navigation controller
setToolbar()
campaignTableView.delegate=self
campaignTableView.dataSource=self
campaignTableView.separatorColor = UIColor(white: 0.95, alpha: 1)
recoverUserDefaults()
getCampaignList()
//print(facebookID, twitterID, firebaseID)
}
func setToolbar(){
//hide bar from navigation controller
self.navigationController?.isNavigationBarHidden = false
self.navigationItem.setHidesBackButton(true, animated: false)
self.navigationController?.navigationBar.barTintColor = UIColor.purple
}
func getCampaignList(){
Alamofire.request(serverFetchCampaignsUrl+"/campaigns/get/all/user/\(twitterID)/firebase/\(firebaseID)/cat/0", method: .get).validate().responseJSON { response in
switch response.result {
case .success(let data):
let campaignCausesJSON = JSON(campaignCausesData: data)
self.parseCampaignCausesListResponse(campaignCausesJSON)
//alternative thread operation
DispatchQueue.main.async {
self.campaignTableView.reloadData()
}
case .failure(let error):
print(error)
}
}
}
func parseCampaignCausesListResponse(_ campaignCausesJSON:JSON){
if let activeCampaignCount = campaignCausesJSON["active_campaigns_count"].string {
//Now you got your value
print("TOTAL_ACTIVE_CAMPAIGNS",activeCampaignCount)
CampaignsGlobalDataManagerUtil.campaignTotalCount = Int(activeCampaignCount)!
}
if let contributorUserId = campaignCausesJSON["contributor_user_id"].string {
//Now you got your value
print("CONTRIBUTOR_USER_ID",contributorUserId)
CurrentUserUtil.contributorUserId = contributorUserId
}
if let userTwitterFollowersQty = campaignCausesJSON["user_twitter_followers_qty"].int {
//Now you got your value
print("USER_TWITTER_FOLLOWERS_QTY",userTwitterFollowersQty)
CurrentUserUtil.twitterFollowersCount = Int(userTwitterFollowersQty)
}
//Parsing campaigns object array
campaignCausesJSON["camp_array"].arrayValue.map({
let campaignCause:JSON = $0
parseCampaign(campaignCause)
})
}
//TODO:CHANGE TO DATATAPE OBJECT
func parseCampaign(_ causeCampaign:JSON){
let causeCampaignObject: CauseCampaign = CauseCampaign();
causeCampaignObject.description = causeCampaign["cause_description"].stringValue
causeCampaignObject.id = causeCampaign["campaign_id"].stringValue
if let contributorsQty = causeCampaign["contributors_qty"].int{
causeCampaignObject.contributorsQty = contributorsQty
}
causeCampaignObject.currencySymbol = causeCampaign["currency_symbol"].stringValue
if let currentContributions = causeCampaign["current_contributions"].float{
causeCampaignObject.currentContributions = currentContributions
}
if let goal = causeCampaign["goal"].float {
causeCampaignObject.goal = goal
}
if let goalPercentageAchieved = causeCampaign["goal_percentage_achieved"].float{
causeCampaignObject.goalPercentageAchieved = causeCampaign["goal_percentage_achieved"].float!
}
causeCampaignObject.hashtag = causeCampaign["hashtag"].stringValue
causeCampaignObject.name = causeCampaign["name"].stringValue
if let remainingAmmountToGoal = causeCampaign["remaining_ammount_to_goal"].float{
causeCampaignObject.remainingAmmountToGoal = remainingAmmountToGoal
}
if let picUrl = causeCampaign["pic_url"].stringValue as? String {
causeCampaignObject.picUrl = picUrl
}
if let campaignStartingDate = causeCampaign["created_at"].string{
causeCampaignObject.campaignStartingDate = campaignStartingDate
}
if let campaignEndingDate = causeCampaign["campaign_ending_date"].string{
causeCampaignObject.campaignEndingDate = campaignEndingDate
}
var foundationsArray = [Foundation]()
causeCampaign["foundations"].arrayValue.map({
let id = $0["foundation_id"].stringValue
let twitterUsername = $0["twitter_username"].stringValue
let picPath = $0["pic_path"].stringValue
let name = $0["name"].stringValue
let foundation:Foundation = Foundation(id,twitterAccount: twitterUsername,picPath: picPath,name: name)
foundationsArray.append(foundation)
})
causeCampaignObject.foundations = foundationsArray
campaignRowsData.append(causeCampaignObject)
// foundations = "<null>";
//innecesario
// SACAR DE LA REQUEST INICIAL???
// "went_inactive_date" = "<null>";
// "tweet_id" = 900936910494810112;
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return campaignRowsData.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = campaignTableView.dequeueReusableCell(withIdentifier: "campaignCell", for: indexPath) as! MainViewControllerTableViewCell
//setting card attributes
print("ROW",campaignRowsData[indexPath.row].description)
let campaignCause:CauseCampaign = campaignRowsData[indexPath.row]
if let desc = campaignCause.description as? String{
cell.causeDescription.text = desc
} else {
print("NULL")
}
return cell
}
func recoverUserDefaults(){
if let fbID = UserDefaults.standard.object(forKey: Config.Global._facebookIdUserDefaults) as? String {
facebookID = fbID
}else{
print("FACEBOOK ID IS NULL")
}
if let twtID = UserDefaults.standard.object(forKey: Config.Global._twitterIdUserDefaults) as? String{
twitterID = twtID
}else{
print("TWITTER ID IS NULL")
}
if let firID = UserDefaults.standard.object(forKey: Config.Global._firebaseIdUserDefaults) as? String{
firebaseID = firID
}else{
print("TWITTER ID IS NULL")
}
return
}
}
reloadData被取消注释，应用会崩溃（我甚至不知道何时以及如果我应该使用此行）reloadData它就会崩溃causeCampaignDescription，现在它被称为causeDescription所以我不知道为什么错误会一直提到该字段desc是正常的，因为我打印它并且它有正确的内容所以它不是那个可能是什么问题？
答案 0 :(得分：1)
在项目中搜索causeCampaignDescription通常会显示包含过时密钥路径的有问题的xib和/或故事板。然而，根据我的经验，Xcode并不总是100％可靠地在xibs和故事板中查找内容，所以如果Xcode的搜索功能找不到它，终端中的这个命令将立即将其打开：
find /path/to/your/project/directory -name .git -prune -or -type f -exec grep causeCampaignDescription {} \; -print
在xib或storyboard中找到有问题的项目后，将其更改为正确的字符串，您应该解决问题。