无法解决线程1:致命错误:索引超出范围

如何解决无法解决线程1:致命错误:索引超出范围

以下代码返回线程1:致命错误:索引超出范围,我不确定如何解决此问题。 cell.nameLabel?.text = filteredPosts[indexPath.row].name运行(在override func tableView(_ tableView: UITableView,cellForRowAt indexPath: IndexPath) -> UITableViewCell中)时出现错误

import UIKit
import Firebase
import FirebaseDatabase
import SwiftKeychainWrapper
import FirebaseAuth
import FirebaseStorage

class FeedVC: UITableViewController,UISearchBarDelegate{
    
    @IBOutlet weak var searchBar: UISearchBar!
    
    var currentUserImageUrl: String!
    var posts = [postStruct]()
    var selectedPost: Post!
    var filteredPosts = [postStruct]()
    
    override func viewDidLoad() {
        super.viewDidLoad()
        getUsersData()
        getPosts()
        searchBar.delegate = self
        // Do any additional setup after loading the view.
   //     tableView.register(PostCell.self,forCellReuseIdentifier: "PostCell")
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }
    
    
    func getUsersData(){

        guard let userID = Auth.auth().currentUser?.uid else { return }
        Database.database().reference().child("users").child(userID).observeSingleEvent(of: .value) { (snapshot) in
            if let postDict = snapshot.value as? [String : AnyObject] {
                self.tableView.reloadData()
            }
        }
    }
    

    func getImageEvent (imagePath: String,completion: @escaping(UIImage) -> Void) {
        var myImage : UIImageView?
        let storageRef =  Storage.storage().reference(withPath: imagePath)
        storageRef.getData(maxSize: 1 * 1024 * 1024) { data,error in
            if let error = error {
                print(error.localizedDescription)
                return
            }

            if let data = data {
                if let myImage = UIImage(data: data) {
                    completion(myImage)
                }
            }
        }
    }
    
    struct postStruct {
        let name : String!
        let contactEmail : String!
        let contactPhoneNum : String!
        let age : String!
        let gender : String!
        let lastSeen : String!
        let profileDescription : String!
        let imageUrl: String!
    }
    
    
    func getImage (imagePath: String,error in
            if let error = error {
                print(error.localizedDescription)
                return
            }

            if let data = data {
                if let myImage = UIImage(data: data) {
                    completion(myImage)
                }
            }
        }
    }
        
    func getPosts() {
        let databaseRef = Database.database().reference()
        databaseRef.child("profiles").queryOrderedByKey().observe( .childAdded,with: {
                    snapshot in
                    let name = (snapshot.value as? NSDictionary)!["name"] as? String
                    let contactEmail = (snapshot.value as? NSDictionary
                    )!["contactEmail"] as? String
                    let contactPhoneNum = (snapshot.value as? NSDictionary
                    )!["contactPhoneNum"] as? String
                    let age = (snapshot.value as? NSDictionary
                    )!["age"] as? String
                    let gender = (snapshot.value as? NSDictionary
                    )!["gender"] as? String
                    let lastSeen = (snapshot.value as? NSDictionary
                    )!["lastSeen"] as? String
                    let profileDescription = (snapshot.value as? NSDictionary
                    )!["profileDescription"] as? String
                    let imageUrl = (snapshot.value as? NSDictionary
                    )!["url"] as? String
            self.posts.append(postStruct(name: name,contactEmail:contactEmail,contactPhoneNum:contactPhoneNum,age:age,gender:gender,lastSeen:lastSeen,profileDescription:profileDescription,imageUrl:imageUrl))
            DispatchQueue.main.async {
                        self.tableView.reloadData()
                    }
                })
    }
    
    override func numberOfSections(in tableView: UITableView) -> Int {
        return 1
    }
    
    override func tableView(_ tableView: UITableView,numberOfRowsInSection section: Int) -> Int {
        print("posts count = ",filteredPosts.count)
        return (filteredPosts.count)

   }
    
    
    override func tableView(_ tableView: UITableView,heightForRowAt indexPath: IndexPath) -> CGFloat {
      //  tableView.dequeueReusableCell(withIdentifier: "PostCell")!.frame.size.height
        return 230
    }
   override func tableView(_ tableView: UITableView,cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        guard let cell = tableView.dequeueReusableCell(withIdentifier: "PostCell") as? PostCell else { return UITableViewCell() }
        print(indexPath.row)
        cell.nameLabel?.text = filteredPosts[indexPath.row].name
        cell.contactEmailLabel?.text = filteredPosts[indexPath.row].contactEmail
        cell.contactPhoneNumLabel?.text = filteredPosts[indexPath.row].contactPhoneNum
        cell.ageLabel?.text = filteredPosts[indexPath.row].age
        cell.genderLabel?.text = filteredPosts[indexPath.row].gender
        cell.lastSeenLabel?.text = filteredPosts[indexPath.row].lastSeen
        cell.profileDescriptionLabel?.text = filteredPosts[indexPath.row].profileDescription
        getImage(imagePath: filteredPosts[indexPath.row].imageUrl) { (image) in
                cell.postImage.image = image

               }
        return cell
    }
    
    
        
    func searchBar(_ searchBar: UISearchBar,textDidChange searchText: String) {
        filteredPosts = posts.filter { $0.name?.lowercased().contains(searchText.lowercased()) == true }
        print(searchText)
        print(posts.filter { $0.name?.lowercased().contains(searchText.lowercased()) == true })
        print(posts)
        print(filteredPosts)
        self.tableView.reloadData()
}


}

任何解决此问题的技巧将不胜感激

解决方法

在您的searchBar(_:textDidChange: String)中,您可能希望在过滤帖子后更新表格视图。

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