Question

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我一直在使用Eureka，这太棒了!!!

最近我在使用MultivaluedSection，我编写了一个简单的测试项目：它简单地从tableView添加/删除人员。

这里是代码，首先是模型：Person

struct Person:Equatable,CustomStringConvertible{
    var description: String{
        return "\(name) \(id)"
    }

    static func ==(lhs: Person, rhs: Person) -> Bool {
        return lhs.id == rhs.id
    }

    var id:String
    var name:String

    init(name:String){
        self.id = UUID().uuidString
        self.name = name
    }
}

VC的下一个代码：

class ViewController: FormViewController {

    var people:[Person] = []

    override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)
        //hide delete button at row left
        tableView.isEditing = false
    }

    override func viewDidLoad() {
        super.viewDidLoad()

        let peopleSection = MultivaluedSection(multivaluedOptions:[.Delete,.Reorder,.Insert],header:"people")

        peopleSection.tag = "people"
        peopleSection.multivaluedRowToInsertAt = {idx in
            let newRow = LabelRow(){row in
                let person = Person(name: "h\(idx)")
                row.value = person.description
                self.people.append(person)

                let deleteAction = SwipeAction(style: .destructive, title: "DEL"){action,row,completion in
                    completion?(true)
                }
                row.trailingSwipe.actions = [deleteAction]
            }
            return newRow
        }

        peopleSection.addButtonProvider = {section in
            let addBtn = ButtonRow("add"){row in
                row.title = "new person"
            }
            return addBtn
        }

        form +++ peopleSection
    }
}

运行应用，如下图所示：

有两个问题：

1：你可以看到我添加3个人然后按顺序删除它们，一切都很好！但是，当我再次添加一个人时，发生了一些错误：似乎该部分的标题被拉得很长。为什么???

2：当我向tableView添加一些人时，标题没有左对齐，为什么会这样：

非常感谢！

Answer 1

请更新代码，

peopleSection.multivaluedRowToInsertAt = {idx in
    return LabelRow() {
        let person = Person(name: "h\(idx)")
        $0.title = person.description
        self.people.append(person)
    }
}

它将为您提供以下输出，删除也将正常工作。

Answer 2

关于您的第一个问题：SwipeAction实际上并未从您的表中删除该行。为了使其正常工作，您可以手动删除此行：

let deleteAction = SwipeAction(style: .destructive, title: "DEL") { action, row, completion in

    // Delete row:
    if let rowNum = row.indexPath?.row {
        row.section?.remove(at: rowNum)
    }

    completion?(true)
}
row.trailingSwipe.actions = [deleteAction]

MultivaluedSection的奇怪行为？

2 个答案: