Question

我有一个表格视图控制器，我嵌入了一个左栏编辑项目按钮。

 override func viewDidLoad() {
        super.viewDidLoad()
navigationItem.leftBarButtonItem = self.editButtonItem
}
override func tableView(_ tableView: UITableView, canEditRowAt indexPath: IndexPath) -> Bool {
        return true
    }
override func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCellEditingStyle, forRowAt indexPath: IndexPath) {

        if (editingStyle == UITableViewCellEditingStyle.delete) {

            MessageTableView.deleteRows(at: [indexPath], with: .fade)
        }

}

当我点击修改按钮时，会弹出一个圆圈，以便在其中加上复选标记

但是当我点击编辑按钮时，我希望红色减号显示为

但是我遵循的每一个教程，我得到的第一张照片都是我想要的。

Answer 1

根据您在问题下方的评论，您已为表格视图启用了allowsMultipleSelectionDuringEditing属性。启用此选项后，表格在编辑表格视图时支持多项选择。这优先于支持“正常”编辑功能，例如删除。这就是为什么你得到复选框（用于选择）而不是红色删除圈。

如果您想在编辑模式下支持使用红色圆圈删除单元格，则需要在编辑期间禁用多个选择。

Answer 2

var arrayDays:[Student] = []

    @IBOutlet var tableViewForStudents: UITableView!

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.

        let std1 = Student(name: "First", rollNo: 1, address: "this is \\n address of \\n student 1",image:"demo.png")
        let std2 = Student(name: "Two", rollNo: 2, address: "this is \\n address of \\n student 2",image:"demo.png")
        let std3 = Student(name: "Three", rollNo: 3, address: "this is \\n address of \\n student 3",image:"demo.png")
        let std4 = Student(name: "Four", rollNo: 4, address: "this is \\n address of \\n student 4",image:"demo.png")
        let std5 = Student(name: "Five", rollNo: 5, address: "this is \\n address of \\n student 5",image:"demo.png")
        let std6 = Student(name: "Six", rollNo: 6, address: "this is \\n address of \\n student 6",image:"demo.png")

        arrayDays.append(std1)
        arrayDays.append(std2)
        arrayDays.append(std3)
        arrayDays.append(std4)
        arrayDays.append(std5)
        arrayDays.append(std6)

    }
func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCellEditingStyle, forRowAt indexPath: IndexPath) {

        if editingStyle == .delete {
            arrayDays.remove(at: indexPath.row)

            tableView.deleteRows(at: [indexPath], with: .left)
        }

导入UIKit

class Student: NSObject {

    var strStudentName:String!
    var strStrudentRollNo:Int!
    var strStudentAddress:String!
    var imageName:String!

    init(name:String, rollNo:Int, address:String,image:String) {

        strStudentName = name
        strStrudentRollNo = rollNo
        strStudentAddress = address
        imageName = image
    }
    }

删除tableView单元格

2 个答案: