可滑动 Table 在 iOS 9 中查看单元格

Question

我希望我的 table 列表有一个可滑动的菜单，就像 iOS 8 中那样（首次在 iOS 7 中引入）。

我找到了 a Ray Wenderlich guide that is clear 如何做到这一点，但它是一年零 4 个月前写的，代码在 Objective-C.

iOS 8 或即将推出的 iOS 9 是否最终将此功能包含在 Apple 的 SDK 中？我知道他们几年前就内置了 "swipe to reveal delete function"。如果 Apple 的新 iOS 将把它放在一个包装整齐的包裹中交给我，我不想浪费我的时间来实现拼接在一起的代码来模仿 iOS 8 邮件功能。

Answer 1

据我所知，没有内置的现成解决方案，即使 iOS9 中有，您也可能无法使用它，因为您的应用中不能只支持 iOS9可预见的未来。

相反，我建议您看看这个库：

https://github.com/CEWendel/SWTableViewCell

它非常容易配置，非常完善，并且在我参与的任何 swift 项目中都运行良好。

希望对您有所帮助！

Answer 2

您可以使用 UITableView 委托方法来请求这些操作。按如下方式实现此方法：

- (NSArray *)tableView:(UITableView *)tableView editActionsForRowAtIndexPath:(NSIndexPath *)indexPath {
     UITableViewRowAction *modifyAction = [UITableViewRowAction rowActionWithStyle:UITableViewRowActionStyleDefault title:@"Modify" handler:^(UITableViewRowAction *action, NSIndexPath *indexPath) {
         // Respond to the action.
     }];
     modifyAction.backgroundColor = [UIColor blueColor];
     return @[modifyAction];
}

您当然可以 return 多项操作并自定义文本和背景颜色。

要使该行可编辑，也需要实施此方法：

- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {
}

Answer 3

试试这个，已更新 Swift 3 (Developer Docs)

override func tableView(_ tableView: UITableView, editActionsForRowAt: IndexPath) -> [UITableViewRowAction]? {
    let more = UITableViewRowAction(style: .normal, title: "More") { action, index in
        print("more button tapped")
    }
    more.backgroundColor = .lightGray
    
    let favorite = UITableViewRowAction(style: .normal, title: "Favorite") { action, index in
        print("favorite button tapped")
    }
    favorite.backgroundColor = .orange
    
    let share = UITableViewRowAction(style: .normal, title: "Share") { action, index in
        print("share button tapped")
    }
    share.backgroundColor = .blue
    
    return [share, favorite, more]
}

也实现这个：（你可以让它有条件，但这里一切都是可编辑的）

override func tableView(_ tableView: UITableView, canEditRowAt indexPath: IndexPath) -> Bool {
    return true
}

Answer 4

我找到了这个图书馆 MGSwipeTableCell 在搜索了很多使用 swift 在 table 视图中实现幻灯片单元格之后，我发现了这个及其仅一行代码来实现并发现它非常有用。

     func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell
  {
    let reuseIdentifier = "programmaticCell"
    var cell = self.table.dequeueReusableCellWithIdentifier(reuseIdentifier) as! MGSwipeTableCell!
    if cell == nil
    {
      cell = MGSwipeTableCell(style: UITableViewCellStyle.Subtitle, reuseIdentifier: reuseIdentifier)
    }

    cell.textLabel!.text = "Title"
    cell.detailTextLabel!.text = "Detail text"
    cell.delegate = self //optional

    //configure left buttons
    cell.leftButtons = [MGSwipeButton(title: "", icon: UIImage(named:"check.png"), backgroundColor: UIColor.greenColor())
      ,MGSwipeButton(title: "", icon: UIImage(named:"fav.png"), backgroundColor: UIColor.blueColor())]
    cell.leftSwipeSettings.transition = MGSwipeTransition.Rotate3D

    //configure right buttons
    cell.rightButtons = [MGSwipeButton(title: "Delete", backgroundColor: UIColor.redColor())
      ,MGSwipeButton(title: "More",backgroundColor: UIColor.lightGrayColor())]
    cell.rightSwipeSettings.transition = MGSwipeTransition.Rotate3D

    return cell
  }

这是您必须实施和更新 pod 文件的唯一功能

Answer 5

Swift 3个完整的解决方案：

import UIKit

class ViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {

    @IBOutlet weak var tableView: UITableView!

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

        tableView.tableFooterView = UIView(frame: CGRect.zero) //Hiding blank cells.
        tableView.separatorInset = UIEdgeInsets.zero
        tableView.dataSource = self
        tableView.delegate = self
    }

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

    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {

        return 4
    }

    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {

        let cell: UITableViewCell = tableView.dequeueReusableCell(withIdentifier: "tableCell", for: indexPath)

        return cell
    }

    //Enable cell editing methods.
    func tableView(_ tableView: UITableView, canEditRowAt indexPath: IndexPath) -> Bool {

        return true
    }

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

    }

    func tableView(_ tableView: UITableView, editActionsForRowAt indexPath: IndexPath) -> [UITableViewRowAction]? {

        let more = UITableViewRowAction(style: .normal, title: "More") { action, index in
            //self.isEditing = false
            print("more button tapped")
        }
        more.backgroundColor = UIColor.lightGray

        let favorite = UITableViewRowAction(style: .normal, title: "Favorite") { action, index in
            //self.isEditing = false
            print("favorite button tapped")
        }
        favorite.backgroundColor = UIColor.orange

        let share = UITableViewRowAction(style: .normal, title: "Share") { action, index in
            //self.isEditing = false
            print("share button tapped")
        }
        share.backgroundColor = UIColor.blue

        return [share, favorite, more]
    }

}

Answer 6

这段代码适用于我的 swift4。

Answer of the above screen is:-

 func tableView(_ tableView: UITableView,
                   trailingSwipeActionsConfigurationForRowAt indexPath: IndexPath) -> UISwipeActionsConfiguration?
    {
        // Write action code for the trash
        let TrashAction = UIContextualAction(style: .normal, title:  "Trash", handler: { (ac:UIContextualAction, view:UIView, success:(Bool) -> Void) in
            print("Update action ...")
            success(true)
        })
        TrashAction.backgroundColor = .red

        // Write action code for the Flag
        let FlagAction = UIContextualAction(style: .normal, title:  "Flag", handler: { (ac:UIContextualAction, view:UIView, success:(Bool) -> Void) in
            print("Update action ...")
            success(true)
        })
        FlagAction.backgroundColor = .orange

        // Write action code for the More
        let MoreAction = UIContextualAction(style: .normal, title:  "More", handler: { (ac:UIContextualAction, view:UIView, success:(Bool) -> Void) in
            print("Update action ...")
            success(true)
        })
        MoreAction.backgroundColor = .gray


        return UISwipeActionsConfiguration(actions: [TrashAction,FlagAction,MoreAction])
    }

Answer of the above screen:-

 func tableView(_ tableView: UITableView,
                   leadingSwipeActionsConfigurationForRowAt indexPath: IndexPath) -> UISwipeActionsConfiguration?
    {

        let closeAction = UIContextualAction(style: .normal, title:  "Mark as Read", handler: { (ac:UIContextualAction, view:UIView, success:(Bool) -> Void) in
            print("CloseAction ...")
            success(true)
        })
        closeAction.backgroundColor = .blue
        return UISwipeActionsConfiguration(actions: [closeAction])

    }

Write tableview Delegate method likewise:-

func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return arrPerson.count
    }

    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {

        let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)
        let personName = arrPerson[indexPath.row]
        cell.textLabel?.text = personName.personName
        return cell

    }

And in the viewDidLoad

override func viewDidLoad() {
    super.viewDidLoad()

    tblView.delegate = self
    tblView.dataSource = self

    let person1 = personData(personName: "Jonny", personAge: 30)
    let person2 = personData(personName: "Chandan", personAge: 20)
    let person3 = personData(personName: "Gopal", personAge: 28)

   arrPerson.append(person1)
   arrPerson.append(person2)
   arrPerson.append(person3)

}

Answer 7

这比你想象的要容易。下面是一个 Swift class 的示例，它具有已实现的 UITableView 和滑动 UITableViewCell 的能力。

import UIKit

class ViewController: UIViewController {

    // MARK: Properties

    let strings = ["firstString", "secondString", "thirdString"]

    // MARK: Outlets

    @IBOutlet weak var tableView: UITableView!

    // MARK: Lifecycle

    override func viewDidLoad() {
        super.viewDidLoad()

        tableView.delegate = self
        tableView.dataSource = self
    }
}

extension ViewController: UITableViewDataSource, UITableViewDelegate {

    // MARK: UITableViewDataSource

    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return objects.count
    }

    func numberOfSections(in tableView: UITableView) -> Int {
        return 1
    }

    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: "cellIdentifier", for: indexPath)
        let currentString = strings[indexPath.row]
        cell.textLabel?.text = currentString
        return cell
    }

    // MARK: UITableViewDelegate

    func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
        tableView.deselectRow(at: indexPath, animated: true)
    }

    func tableView(_ tableView: UITableView, leadingSwipeActionsConfigurationForRowAt indexPath: IndexPath) -> UISwipeActionsConfiguration? {
        let leftAction = UIContextualAction(style: .normal, title:  "Red", handler: { (ac:UIContextualAction, view:UIView, success:(Bool) -> Void) in
            print("leftAction tapped")
            success(true)
        })

        leftAction.image = UIImage(named: "")
        leftAction.backgroundColor = UIColor.red

        return UISwipeActionsConfiguration(actions: [leftAction])
    }

    func tableView(_ tableView: UITableView, trailingSwipeActionsConfigurationForRowAt indexPath: IndexPath) -> UISwipeActionsConfiguration? {
        let rightAction = UIContextualAction(style: .normal, title:  "Green", handler: { (ac:UIContextualAction, view:UIView, success:(Bool) -> Void) in
            print("rightAction tapped")
            success(true)
        })

        rightAction.image = UIImage(named: "")
        rightAction.backgroundColor = UIColor.green

        return UISwipeActionsConfiguration(actions: [rightAction])
    }

}

可滑动 Table 在 iOS 9 中查看单元格

Swipe-able Table View Cell in iOS 9

uitableview

custom-cell

tableviewcell

swift

ios9