Ios TableView工作不正常

我的问题是当我滚动tableview时，它不能正常工作

例如，我有2个部分，在第0部分中，我在单元格中使用配置文件图像，在第1部分中，我隐藏它们，但当我向下和向上滚动时，图像丢失。我还有一个变量，当它正常时，我会改变第二个图像。但当我滚动它不断变化的图像时，但当我向下滚动它不断变化的图像时，这等于

你可以在这里找到图片

    override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCellWithIdentifier(cellIdentifier, forIndexPath: indexPath) as! UserTableViewCell
    if self.itemInfo.title == "USERNAME" && indexPath.section == 0 {
        let user = self.users[indexPath.row]
        let friendImage = UIImage(named: "SearchPeopleAdded")
        for friend in self.friends {
            if friend.objectId == user.objectId {
                cell.groupAddImageView.image = friendImage
                cell.selectionStyle = .None
                cell.userInteractionEnabled = false
            }
        }

        cell.nameLabel!.text = user["username"] as? String

        if let image = user["avatar_image"] as? PFFile {
            cell.userImageView.sd_setImageWithURL(NSURL(string: image.url!))
        }

    }else if itemInfo.title == "ADDRESSBOOK" && indexPath.section == 1 {
        if isSearchActive == false {
            let person = contacts[indexPath.row]
            var firstName = person.name?.firstName
            var lastName = person.name?.lastName

            if firstName == nil || lastName == nil {
                if firstName == nil {
                    firstName = ""
                }
                if lastName == nil {
                    lastName = ""
                }
                if firstName == nil && lastName == nil {
                    if person.phones![0].number != nil {
                        firstName = person.phones![0].number
                        lastName = ""
                    }else {
                        firstName = ""
                        lastName = ""
                    }
                }
            }
            let fullName: String = firstName! + " " + lastName!
            cell.nameLabel.text = fullName
            cell.userImageView.hidden = true
        }else {
            let person = filteredAddressBookUsers[indexPath.row]
            var firstName = person.name?.firstName
            var lastName = person.name?.lastName

            if firstName == nil || lastName == nil {
                if firstName == nil {
                    firstName = ""
                    print("first name nil")
                }
                if lastName == nil {
                    lastName = ""
                    print("last name nil")
                }
                if firstName == nil && lastName == nil {
                    print("both nil")
                    if person.phones![0].number != nil {
                        firstName = person.phones![0].number
                        lastName = ""
                    }else {
                        firstName = ""
                        lastName = ""
                    }

                }
            }
            let fullName: String = firstName! + " " + lastName!
            cell.nameLabel.text = fullName
            cell.userImageView.hidden = true
        }
    }else if self.itemInfo.title == "ADDRESSBOOK" && indexPath.section == 0 {
        let user = self.addressMatchedUsers[indexPath.row]

        let friendImage = UIImage(named: "SearchPeopleAdded")
        for friend in self.friends {
            if friend.objectId == user.objectId {
                cell.groupAddImageView.image = friendImage
                cell.selectionStyle = .None
                cell.userInteractionEnabled = false
            }
        }

        cell.nameLabel!.text = user["username"] as? String

        if let image = user["avatar_image"] as? PFFile {
            cell.userImageView.sd_setImageWithURL(NSURL(string: image.url!))
        }
    }
    //configure(cell, forRowAtIndexPath: indexPath)
    return cell
}

---

创建

UITableViewCell

子类并覆盖

prebeareforeuse

函数-将单元格转换为默认/必需模式

斯威夫特：

override func prepareForReuse() {
    super.prepareForReuse()

    //set cell to initial/required state here 
}

准备一个可重用的单元格，以供表视图的委托重用

如果一个

UITableViewCell

对象是可重用的，也就是说，它有一个重用标识符，那么在从

UITableVie

w方法

dequeueReusableCellWithIdentifier:

返回对象之前，将调用此方法。出于性能原因，您应该只重置与内容无关的单元格属性，例如alpha、编辑和选择状态。在重用单元格时，

tableView:cellforrowatinexpath:

中的表视图委托应始终重置所有内容。如果单元对象没有关联的重用标识符，则不会调用此方法。如果重写此方法，则必须确保调用超类实现

---

在这里添加

cellForRowAtIndexPath

的全部代码。让user=self.users[indexPath.row]代替indexPath.row。在使用分段表视图时，您应该执行indexPath.section。