Arrays 使用parse.com中的本地数组填充tableview时索引超出范围

我试图从parse.com查询一些结果（特别是帖子的标签），然后将其附加到一个本地数组（并非所有帖子都有标签，所以我试图对nil和非nil进行排序，并将它们附加到数组），该数组正在填充uitableview，但我似乎遇到了“致命错误：索引超出范围”错误

我从其他帖子中读到，这可能是由于数组为空或数组索引与数组中的数据不匹配造成的。我非常确定数组正在填充，并且不是空的当数组中的数据填充tableview时会出现错误。

    var tagArray = [String]()

let query = PFQuery(className: "ParseClass")
    query.findObjectsInBackground { (objects, error) in
        if error == nil {
            if let objects = objects {
                for object in objects {
                    //self.tagArray.add(object)
                    if object.object(forKey: "tag") != nil {
                        print("tag is not nil")
                    self.tagArray.append(object.object(forKey: "tag") as! String)
                        //print(object.object(forKey: "tag") as! String)
                    } else if object.object(forKey: "tag") == nil {
                        print("tag is nil")

                    }
                }

            }
            print("success")
        } else {
            print("There was an error")
        }
    }

    let tagObject = tagArray[indexPath.row]
    cell.textLabel.text = tagObject

数组的声明…

    var tagArray = [String]()

let query = PFQuery(className: "ParseClass")
    query.findObjectsInBackground { (objects, error) in
        if error == nil {
            if let objects = objects {
                for object in objects {
                    //self.tagArray.add(object)
                    if object.object(forKey: "tag") != nil {
                        print("tag is not nil")
                    self.tagArray.append(object.object(forKey: "tag") as! String)
                        //print(object.object(forKey: "tag") as! String)
                    } else if object.object(forKey: "tag") == nil {
                        print("tag is nil")

                    }
                }

            }
            print("success")
        } else {
            print("There was an error")
        }
    }

    let tagObject = tagArray[indexPath.row]
    cell.textLabel.text = tagObject

这是我的代码，它从parse.com中提取帖子的标签，并将其附加到本地数组tagArray…

    var tagArray = [String]()

let query = PFQuery(className: "ParseClass")
    query.findObjectsInBackground { (objects, error) in
        if error == nil {
            if let objects = objects {
                for object in objects {
                    //self.tagArray.add(object)
                    if object.object(forKey: "tag") != nil {
                        print("tag is not nil")
                    self.tagArray.append(object.object(forKey: "tag") as! String)
                        //print(object.object(forKey: "tag") as! String)
                    } else if object.object(forKey: "tag") == nil {
                        print("tag is nil")

                    }
                }

            }
            print("success")
        } else {
            print("There was an error")
        }
    }

    let tagObject = tagArray[indexPath.row]
    cell.textLabel.text = tagObject

这是我从本地数组获取数据并填充tableview的代码…

    var tagArray = [String]()

let query = PFQuery(className: "ParseClass")
    query.findObjectsInBackground { (objects, error) in
        if error == nil {
            if let objects = objects {
                for object in objects {
                    //self.tagArray.add(object)
                    if object.object(forKey: "tag") != nil {
                        print("tag is not nil")
                    self.tagArray.append(object.object(forKey: "tag") as! String)
                        //print(object.object(forKey: "tag") as! String)
                    } else if object.object(forKey: "tag") == nil {
                        print("tag is nil")

                    }
                }

            }
            print("success")
        } else {
            print("There was an error")
        }
    }

    let tagObject = tagArray[indexPath.row]
    cell.textLabel.text = tagObject

如果你需要更多信息，请告诉我。任何帮助都将不胜感激

---

谢谢

您还可以包括您的

numberOfRowsInSection

方法吗？我已经意识到我没有numberOfRowsInSection。。。我添加了它，解决了问题。我还是比较新的编码，所以我忘了。非常感谢。