滑动到删除和“更多”按钮（就像在iOS 7上的邮件应用程序中一样）-Java 学习之路

237

用户在表格视图中滑动单元格时如何创建“更多”按钮（如ios 7中的邮件应用程序）

我一直在这里和Cocoa Touch论坛上寻找这些信息，但我似乎无法找到答案，我希望比我更聪明的人能给我一个解决方案 .

我希望当用户滑动表格视图单元格时，显示多个编辑按钮（默认为删除按钮） . 在iOS 7的Mail应用程序中，您可以滑动删除，但会显示一个“更多”按钮 .

enter image description here

20 回答

123
如何实施

看起来iOS 8打开了这个API . Beta 2中提供了此类功能的提示 .

要使某些工作正常，请在UITableView的委托上实现以下两种方法以获得所需的效果（请参阅gist以获取示例） .
```
- tableView:editActionsForRowAtIndexPath:
- tableView:commitEditingStyle:forRowAtIndexPath:
```
已知问题

文档说tableView：commitEditingStyle：forRowAtIndexPath是：

“未使用UITableViewRowAction调用编辑操作 - 将调用操作的处理程序 . ”

但是，如果没有它，滑动就无法工作 . 即使方法存根是空白的，它现在仍然需要它 . 这显然是beta 2中的一个错误 .

来源

https://twitter.com/marksands/status/481642991745265664 https://gist.github.com/marksands/76558707f583dbb8f870

原答案：https://stackoverflow.com/a/24540538/870028

更新：

使用此示例代码（在Swift中）：http://dropbox.com/s/0fvxosft2mq2v5m/DeleteRowExampleSwift.zip

示例代码在MasterViewController.swift中包含这个易于理解的方法，只需使用此方法，您就可以获得OP屏幕截图中显示的行为：
```
override func tableView(tableView: UITableView, editActionsForRowAtIndexPath indexPath: NSIndexPath) -> [AnyObject]? {

    var moreRowAction = UITableViewRowAction(style: UITableViewRowActionStyle.Default, title: "More", handler:{action, indexpath in
        println("MORE•ACTION");
    });
    moreRowAction.backgroundColor = UIColor(red: 0.298, green: 0.851, blue: 0.3922, alpha: 1.0);

    var deleteRowAction = UITableViewRowAction(style: UITableViewRowActionStyle.Default, title: "Delete", handler:{action, indexpath in
        println("DELETE•ACTION");
    });

    return [deleteRowAction, moreRowAction];
}
```
回复于 2024-04-19T19:41:26+08:00
3

我创建了一个新的库来实现可交换按钮，它支持各种转换和可扩展按钮，如iOS 8邮件应用程序 .

https://github.com/MortimerGoro/MGSwipeTableCell

该库兼容所有不同的创建UITableViewCell的方法，并在iOS 5，iOS 6，iOS 7和iOS 8上进行测试 .

这里有一些过渡的样本：

边境过渡：

剪辑转换

3D过渡：

回复于 2024-04-19T19:41:26+08:00

约翰尼的回答是正确的回答 . 我只是在objective-c中添加以下内容，以使初学者（以及那些拒绝学习Swift语法的人）更清楚:)

确保声明uitableviewdelegate并具有以下方法：

-(NSArray *)tableView:(UITableView *)tableView editActionsForRowAtIndexPath:(NSIndexPath *)indexPath {
 UITableViewRowAction *button = [UITableViewRowAction rowActionWithStyle:UITableViewRowActionStyleDefault title:@"Button 1" handler:^(UITableViewRowAction *action, NSIndexPath *indexPath)
    {
        NSLog(@"Action to perform with Button 1");
    }];
    button.backgroundColor = [UIColor greenColor]; //arbitrary color
    UITableViewRowAction *button2 = [UITableViewRowAction rowActionWithStyle:UITableViewRowActionStyleDefault title:@"Button 2" handler:^(UITableViewRowAction *action, NSIndexPath *indexPath)
                                    {
                                        NSLog(@"Action to perform with Button2!");
                                    }];
    button2.backgroundColor = [UIColor blueColor]; //arbitrary color

    return @[button, button2]; //array with all the buttons you want. 1,2,3, etc...
}

- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {
// you need to implement this method too or nothing will work:

}
 - (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
    {
        return YES; //tableview must be editable or nothing will work...
    }

回复于 2024-04-19T19:41:26+08:00

这是（相当荒谬）一个私有API .

以下两个方法是私有的并发送到UITableView的委托：

-(NSString *)tableView:(UITableView *)tableView titleForSwipeAccessoryButtonForRowAtIndexPath:(NSIndexPath *)indexPath;
-(void)tableView:(UITableView *)tableView swipeAccessoryButtonPushedForRowAtIndexPath:(NSIndexPath *)indexPath;

他们非常自我解释 .

回复于 2024-04-19T19:41:26+08:00

为了改进Johnny的答案，现在可以使用公共API完成此操作，如下所示：

func tableView(tableView: UITableView, editActionsForRowAtIndexPath indexPath: NSIndexPath) -> [UITableViewRowAction]? {

    let moreRowAction = UITableViewRowAction(style: UITableViewRowActionStyle.default, title: "More", handler:{action, indexpath in
        print("MORE•ACTION");
    });
    moreRowAction.backgroundColor = UIColor(red: 0.298, green: 0.851, blue: 0.3922, alpha: 1.0);

    let deleteRowAction = UITableViewRowAction(style: UITableViewRowActionStyle.default, title: "Delete", handler:{action, indexpath in
        print("DELETE•ACTION");
    });

    return [deleteRowAction, moreRowAction];
}

回复于 2024-04-19T19:41:26+08:00

6
我希望你不能等到苹果给你什么，你需要什么？所以这是我的选择 .

创建自定义单元格 . 有两个uiviews
```
1. upper
2. lower
```
在下方视图中，添加您需要的按钮 . 像任何其他IBActions一样处理其行为 . 你可以决定动画的时间，风格和任何东西 .

现在在上方视图中添加一个uiswipegesture，并在滑动手势上显示您的下方视图 . 我以前做过这个，就我而言，它是最简单的选择 .

希望有所帮助 .
回复于 2024-04-19T19:41:26+08:00
68

使用标准SDK无法做到这一点 . 但是，有各种第三方解决方案或多或少地模仿Mail.app中的行为 . 其中一些（例如MCSwipeTableViewCell，DAContextMenuTableViewController，RMSwipeTableViewCell）使用手势识别器检测滑动，其中一些（例如SWTableViewCell）将第二个UISScrollView置于标准 UITableViewCellScrollView （ UITableViewCell 的私有子视图）之下，其中一些修改了 UITableViewCellScrollView 的行为 .

我最喜欢最后一种方法，因为触摸处理感觉最自然 . 具体来说，MSCMoreOptionTableViewCell很好 . 您的选择可能会根据您的具体需求而有所不同（无论您是否需要从左到右的平底锅，是否需要iOS 6兼容性等） . 另请注意，大多数这些方法都有负担：如果Apple在 UITableViewCell 子视图层次结构中进行更改，它们很容易在未来的iOS版本中中断 .

回复于 2024-04-19T19:41:26+08:00

Swift 3 version code without using any library:

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]
    }

}

回复于 2024-04-19T19:41:26+08:00

25

您需要子类化 UITableViewCell 和子类方法 willTransitionToState:(UITableViewCellStateMask)state ，只要用户滑动单元格就会调用它 . 如果显示“删除”按钮， state 标志将通知您，并在那里显示/隐藏“更多”按钮 .

不幸的是，这种方法既不提供删除按钮的宽度也不提供动画时间 . 因此，您需要观察并将您的更多按钮的帧和动画时间硬编码到您的代码中（我个人认为Apple需要对此做些什么） .

回复于 2024-04-19T19:41:26+08:00

用于快速编程

func tableView(tableView: UITableView, commitEditingStyle editingStyle: UITableViewCellEditingStyle, forRowAtIndexPath indexPath: NSIndexPath) {
  if editingStyle == UITableViewCellEditingStyle.Delete {
    deleteModelAt(indexPath.row)
    self.tableView.deleteRowsAtIndexPaths([indexPath], withRowAnimation: .Automatic)
  }
  else if editingStyle == UITableViewCellEditingStyle.Insert {
    println("insert editing action")
  }
}

func tableView(tableView: UITableView, editActionsForRowAtIndexPath indexPath: NSIndexPath) -> [AnyObject]? {
  var archiveAction = UITableViewRowAction(style: .Default, title: "Archive",handler: { (action: UITableViewRowAction!, indexPath: NSIndexPath!) in
        // maybe show an action sheet with more options
        self.tableView.setEditing(false, animated: false)
      }
  )
  archiveAction.backgroundColor = UIColor.lightGrayColor()

  var deleteAction = UITableViewRowAction(style: .Normal, title: "Delete",
      handler: { (action: UITableViewRowAction!, indexPath: NSIndexPath!) in
        self.deleteModelAt(indexPath.row)
        self.tableView.deleteRowsAtIndexPaths([indexPath], withRowAnimation: .Automatic);
      }
  );
  deleteAction.backgroundColor = UIColor.redColor()

  return [deleteAction, archiveAction]
}

func deleteModelAt(index: Int) {
  //... delete logic for model
}

回复于 2024-04-19T19:41:26+08:00

这可以帮助你OUT .

-(NSArray *)tableView:(UITableView *)tableView editActionsForRowAtIndexPath:(NSIndexPath *)indexPath {
 UITableViewRowAction *button = [UITableViewRowAction rowActionWithStyle:UITableViewRowActionStyleDefault title:@"Button 1" handler:^(UITableViewRowAction *action, NSIndexPath *indexPath)
    {
        NSLog(@"Action to perform with Button 1");
    }];
    button.backgroundColor = [UIColor greenColor]; //arbitrary color
    UITableViewRowAction *button2 = [UITableViewRowAction rowActionWithStyle:UITableViewRowActionStyleDefault title:@"Button 2" handler:^(UITableViewRowAction *action, NSIndexPath *indexPath)
                                    {
                                        NSLog(@"Action to perform with Button2!");
                                    }];
    button2.backgroundColor = [UIColor blueColor]; //arbitrary color

    return @[button, button2]; //array with all the buttons you want. 1,2,3, etc...
}

- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {
// you need to implement this method too or nothing will work:

}
 - (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
    {
        return YES; //tableview must be editable or nothing will work...
    }

回复于 2024-04-19T19:41:26+08:00

我想在我的应用程序中添加相同的功能，经过这么多不同的教程（raywenderlich是最好的DIY解决方案）之后，我发现Apple有自己的 UITableViewRowAction 类，这非常方便 .

您必须将Tableview的boilerpoint方法更改为：

override func tableView(tableView: UITableView, editActionsForRowAtIndexPath indexPath: NSIndexPath) -> [AnyObject]?  {
    // 1   
    var shareAction = UITableViewRowAction(style: UITableViewRowActionStyle.Default, title: "Share" , handler: { (action:UITableViewRowAction!, indexPath:NSIndexPath!) -> Void in
    // 2
    let shareMenu = UIAlertController(title: nil, message: "Share using", preferredStyle: .ActionSheet)

    let twitterAction = UIAlertAction(title: "Twitter", style: UIAlertActionStyle.Default, handler: nil)
    let cancelAction = UIAlertAction(title: "Cancel", style: UIAlertActionStyle.Cancel, handler: nil)

    shareMenu.addAction(twitterAction)
    shareMenu.addAction(cancelAction)


    self.presentViewController(shareMenu, animated: true, completion: nil)
    })
    // 3
    var rateAction = UITableViewRowAction(style: UITableViewRowActionStyle.Default, title: "Rate" , handler: { (action:UITableViewRowAction!, indexPath:NSIndexPath!) -> Void in
    // 4
    let rateMenu = UIAlertController(title: nil, message: "Rate this App", preferredStyle: .ActionSheet)

    let appRateAction = UIAlertAction(title: "Rate", style: UIAlertActionStyle.Default, handler: nil)
    let cancelAction = UIAlertAction(title: "Cancel", style: UIAlertActionStyle.Cancel, handler: nil)

    rateMenu.addAction(appRateAction)
    rateMenu.addAction(cancelAction)


    self.presentViewController(rateMenu, animated: true, completion: nil)
    })
    // 5
    return [shareAction,rateAction]
  }

您可以在This Site上找到更多相关信息 . Apple的own documentation对于更改背景颜色非常有用：

动作按钮的背景颜色 . 声明OBJECTIVE-C @property（非原子，复制）UIColor * backgroundColor讨论使用此属性指定按钮的背景颜色 . 如果未指定此属性的值，UIKit将根据style属性中的值指定默认颜色 . 可用性适用于iOS 8.0及更高版本 .

如果你想改变按钮的字体，那么's a bit more tricky. I'已经在SO上看到了another post . 为了提供代码和链接，这里's the code they used there. You' d必须改变按钮的外观 . 你'd have to make a specific reference to tableviewcell, otherwise you' d改变按钮's appearance throughout your app (I didn' t想要那个，但你可能，我不知道:)）

目标C：

+ (void)setupDeleteRowActionStyleForUserCell {

    UIFont *font = [UIFont fontWithName:@"AvenirNext-Regular" size:19];

    NSDictionary *attributes = @{NSFontAttributeName: font,
                      NSForegroundColorAttributeName: [UIColor whiteColor]};

    NSAttributedString *attributedTitle = [[NSAttributedString alloc] initWithString: @"DELETE"
                                                                          attributes: attributes];

    /*
     * We include UIView in the containment hierarchy because there is another button in UserCell that is a direct descendant of UserCell that we don't want this to affect.
     */
    [[UIButton appearanceWhenContainedIn:[UIView class], [UserCell class], nil] setAttributedTitle: attributedTitle
                                                                                          forState: UIControlStateNormal];
}

迅速：

//create your attributes however you want to
    let attributes = [NSFontAttributeName: UIFont.systemFontOfSize(UIFont.systemFontSize())] as Dictionary!            

   //Add more view controller types in the []
    UIButton.appearanceWhenContainedInInstancesOfClasses([ViewController.self])

这是最简单，最流线型的版本恕我直言 . 希望能帮助到你 .

更新：这是Swift 3.0版本：

func tableView(_ tableView: UITableView, editActionsForRowAt indexPath: IndexPath) -> [UITableViewRowAction]? {
    var shareAction:UITableViewRowAction = UITableViewRowAction(style: .default, title: "Share", handler: {(action, cellIndexpath) -> Void in
        let shareMenu = UIAlertController(title: nil, message: "Share using", preferredStyle: .actionSheet)

        let twitterAction = UIAlertAction(title: "Twitter", style: .default, handler: nil)
        let cancelAction = UIAlertAction(title: "Cancel", style: .cancel, handler: nil)

        shareMenu.addAction(twitterAction)
        shareMenu.addAction(cancelAction)


        self.present(shareMenu,animated: true, completion: nil)
    })

    var rateAction:UITableViewRowAction = UITableViewRowAction(style: .default, title: "Rate" , handler: {(action, cellIndexpath) -> Void in
        // 4
        let rateMenu = UIAlertController(title: nil, message: "Rate this App", preferredStyle: .actionSheet)

        let appRateAction = UIAlertAction(title: "Rate", style: .default, handler: nil)
        let cancelAction = UIAlertAction(title: "Cancel", style: .cancel, handler: nil)

        rateMenu.addAction(appRateAction)
        rateMenu.addAction(cancelAction)


        self.present(rateMenu, animated: true, completion: nil)
    })
    // 5
    return [shareAction,rateAction]
}

回复于 2024-04-19T19:41:26+08:00

Actual Swift 3 Answer

这是您需要的唯一功能 . 您不需要CanEdit或CommitEditingStyle函数来执行自定义操作 .

func tableView(_ tableView: UITableView, editActionsForRowAt indexPath: IndexPath) -> [UITableViewRowAction]? {
    let action1 = UITableViewRowAction(style: .default, title: "Action1", handler: {
        (action, indexPath) in
        print("Action1")
    })
    action1.backgroundColor = UIColor.lightGray
    let action2 = UITableViewRowAction(style: .default, title: "Action2", handler: {
        (action, indexPath) in
        print("Action2")
    })
    return [action1, action2]
}

回复于 2024-04-19T19:41:26+08:00

从iOS 11开始，这在 UITableViewDelegate 中公开 . 这是一些示例代码：

- (UISwipeActionsConfiguration *)tableView:(UITableView *)tableView trailingSwipeActionsConfigurationForRowAtIndexPath:(NSIndexPath *)indexPath {
    UIContextualAction *delete = [UIContextualAction contextualActionWithStyle:UIContextualActionStyleDestructive
                                                                         title:@"DELETE"
                                                                       handler:^(UIContextualAction * _Nonnull action, __kindof UIView * _Nonnull sourceView, void (^ _Nonnull completionHandler)(BOOL)) {
                                                                           NSLog(@"index path of delete: %@", indexPath);
                                                                           completionHandler(YES);
                                                                       }];

    UIContextualAction *rename = [UIContextualAction contextualActionWithStyle:UIContextualActionStyleNormal
                                                                         title:@"RENAME"
                                                                       handler:^(UIContextualAction * _Nonnull action, __kindof UIView * _Nonnull sourceView, void (^ _Nonnull completionHandler)(BOOL)) {
                                                                           NSLog(@"index path of rename: %@", indexPath);
                                                                           completionHandler(YES);
                                                                       }];

    UISwipeActionsConfiguration *swipeActionConfig = [UISwipeActionsConfiguration configurationWithActions:@[rename, delete]];
    swipeActionConfig.performsFirstActionWithFullSwipe = NO;

    return swipeActionConfig;
}

也提供：

- (UISwipeActionsConfiguration *)tableView:(UITableView *)tableView leadingSwipeActionsConfigurationForRowAtIndexPath:(NSIndexPath *)indexPath;

文件：https://developer.apple.com/documentation/uikit/uitableviewdelegate/2902367-tableview?language=objc

回复于 2024-04-19T19:41:26+08:00

118

Swift 4＆iOs 11

@available(iOS 11.0, *)
override func tableView(_ tableView: UITableView, trailingSwipeActionsConfigurationForRowAt indexPath: IndexPath) -> UISwipeActionsConfiguration? {

    let delete = UIContextualAction(style: .destructive, title: "Delete") { _, _, handler in

        handler(true)
        // handle deletion here
    }

    let more = UIContextualAction(style: .normal, title: "More") { _, _, handler in

        handler(true)
        // handle more here
    }

    return UISwipeActionsConfiguration(actions: [delete, more])
}

回复于 2024-04-19T19:41:26+08:00

这是一种有点脆弱的方式，不涉及私有API或构建自己的系统 . 你正在对冲苹果公司没有打破这一点的赌注，希望他们能够发布一个API，你可以用这几行代码代替 .

KVO self.contentView.superview.layer.sublayer. 在init中执行此操作 . 这是UIScrollView 's layer. You can' t KVO 'subviews' .
When subviews changes, find the delete confirmation view within scrollview.subviews. 这是在observe回调中完成的 .
Double the size of that view and add a UIButton to the left of its only subview. 这也是在observe回调中完成的 . 删除确认视图的唯一子视图是删除按钮 .
（可选）UIButton事件应查找self.superview，直到找到UITableView，然后调用您创建的数据源或委托方法，例如tableView：commitCustomEditingStyle：forRowAtIndexPath： . 您可以使用[tableView indexPathForCell：self]找到单元格的indexPath .

这还要求您实现标准表视图编辑委托回调 .

static char kObserveContext = 0;

@implementation KZTableViewCell {
    UIScrollView *_contentScrollView;
    UIView *_confirmationView;
    UIButton *_editButton;
    UIButton *_deleteButton;
}

- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier {
    self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
    if (self) {
        _contentScrollView = (id)self.contentView.superview;

        [_contentScrollView.layer addObserver:self
             forKeyPath:@"sublayers"
                options:0
                context:&kObserveContext];

        _editButton = [UIButton new];
        _editButton.backgroundColor = [UIColor lightGrayColor];
        [_editButton setTitle:@"Edit" forState:UIControlStateNormal];
        [_editButton addTarget:self
                        action:@selector(_editTap)
              forControlEvents:UIControlEventTouchUpInside];

    }
    return self;
}

-(void)dealloc {
    [_contentScrollView.layer removeObserver:self forKeyPath:@"sublayers" context:&kObserveContext];
}

-(void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context {
    if(context != &kObserveContext) {
        [super observeValueForKeyPath:keyPath ofObject:object change:change context:context];
        return;
    }
    if(object == _contentScrollView.layer) {
        for(UIView * view in _contentScrollView.subviews) {
            if([NSStringFromClass(view.class) hasSuffix:@"ConfirmationView"]) {
                _confirmationView = view;
                _deleteButton = [view.subviews objectAtIndex:0];
                CGRect frame = _confirmationView.frame;
                CGRect frame2 = frame;
                frame.origin.x -= frame.size.width;
                frame.size.width *= 2;
                _confirmationView.frame = frame;

                frame2.origin = CGPointZero;
                _editButton.frame = frame2;
                frame2.origin.x += frame2.size.width;
                _deleteButton.frame = frame2;
                [_confirmationView addSubview:_editButton];
                break;
            }
        }
        return;
    }
}

-(void)_editTap {
    UITableView *tv = (id)self.superview;
    while(tv && ![tv isKindOfClass:[UITableView class]]) {
        tv = (id)tv.superview;
    }
    id<UITableViewDelegate> delegate = tv.delegate;
    if([delegate respondsToSelector:@selector(tableView:editTappedForRowWithIndexPath:)]) {
        NSIndexPath *ip = [tv indexPathForCell:self];
        // define this in your own protocol
        [delegate tableView:tv editTappedForRowWithIndexPath:ip];
    }
}
@end

回复于 2024-04-19T19:41:26+08:00

3

有一个名为 SwipeCellKit 的惊人库，它应该获得更多的认可 . 在我看来，它比 MGSwipeTableCell 更酷 . 后者不是't completely replicate the behavior of the Mail app'的细胞而 SwipeCellKit . Have a look

回复于 2024-04-19T19:41:26+08:00

Swift 4

func tableView(_ tableView: UITableView, trailingSwipeActionsConfigurationForRowAt indexPath: IndexPath) -> UISwipeActionsConfiguration? {
    let delete = UIContextualAction(style: .destructive, title: "Delete") { (action, sourceView, completionHandler) in
        print("index path of delete: \(indexPath)")
        completionHandler(true)
    }
    let rename = UIContextualAction(style: .normal, title: "Edit") { (action, sourceView, completionHandler) in
        print("index path of edit: \(indexPath)")
        completionHandler(true)
    }
    let swipeActionConfig = UISwipeActionsConfiguration(actions: [rename, delete])
    swipeActionConfig.performsFirstActionWithFullSwipe = false
    return swipeActionConfig
}

回复于 2024-04-19T19:41:26+08:00

我使用 tableViewCell 来显示多个数据，在一个单元格上向右滑动（）后会显示两个按钮Approve和reject，有两个方法，第一个是ApproveFunc，它接受一个参数，另一个是RejectFunc，它也是有一个论点 .

enter image description here

func tableView(_ tableView: UITableView, editActionsForRowAt indexPath: IndexPath) -> [UITableViewRowAction]? {
        let Approve = UITableViewRowAction(style: .normal, title: "Approve") { action, index in

            self.ApproveFunc(indexPath: indexPath)
        }
        Approve.backgroundColor = .green

        let Reject = UITableViewRowAction(style: .normal, title: "Reject") { action, index in

            self.rejectFunc(indexPath: indexPath)
        }
        Reject.backgroundColor = .red



        return [Reject, Approve]
    }

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

    func ApproveFunc(indexPath: IndexPath) {
        print(indexPath.row)
    }
    func rejectFunc(indexPath: IndexPath) {
        print(indexPath.row)
    }

回复于 2024-04-19T19:41:26+08:00

这是一个简单的解决方案 . 它能够在UITableViewCell中显示和隐藏自定义UIView . 显示逻辑包含在从UITableViewCell，BaseTableViewCell扩展的类中 .

BaseTableViewCell.h

#import <UIKit/UIKit.h>

@interface BaseTableViewCell : UITableViewCell

@property(nonatomic,strong)UIView* customView;

-(void)showCustomView;

-(void)hideCustomView;

@end

BaseTableViewCell.M

#import "BaseTableViewCell.h"

@interface BaseTableViewCell()
{
    BOOL _isCustomViewVisible;
}

@end

@implementation BaseTableViewCell

- (void)awakeFromNib {
    // Initialization code
}

-(void)prepareForReuse
{
    self.customView = nil;
    _isCustomViewVisible = NO;
}

- (void)setSelected:(BOOL)selected animated:(BOOL)animated {
    [super setSelected:selected animated:animated];

    // Configure the view for the selected state
}

-(void)showCustomView
{
    if(nil != self.customView)
    {
        if(!_isCustomViewVisible)
        {
            _isCustomViewVisible = YES;

            if(!self.customView.superview)
            {
                CGRect frame = self.customView.frame;
                frame.origin.x = self.contentView.frame.size.width;
                self.customView.frame = frame;
                [self.customView willMoveToSuperview:self.contentView];
                [self.contentView addSubview:self.customView];
                [self.customView didMoveToSuperview];
            }

            __weak BaseTableViewCell* blockSelf = self;
            [UIView animateWithDuration:.5 animations:^(){

                for(UIView* view in blockSelf.contentView.subviews)
                {
                    CGRect frame = view.frame;
                    frame.origin.x = frame.origin.x - blockSelf.customView.frame.size.width;
                    view.frame = frame;
                }
            }];
        }
    }
}

-(void)hideCustomView
{
    if(nil != self.customView)
    {
        if(_isCustomViewVisible)
        {
            __weak BaseTableViewCell* blockSelf = self;
            _isCustomViewVisible = NO;
            [UIView animateWithDuration:.5 animations:^(){
                for(UIView* view in blockSelf.contentView.subviews)
                {
                    CGRect frame = view.frame;
                    frame.origin.x = frame.origin.x + blockSelf.customView.frame.size.width;
                    view.frame = frame;
                }
            }];
        }
    }
}

@end

要获得此功能，只需从BaseTableViewCell扩展表视图单元 .

接下来，实现UITableViewDelegate的Inside UIViewController创建了两个手势识别器来处理左右滑动 .

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.

    [self.tableView registerNib:[UINib nibWithNibName:CUSTOM_CELL_NIB_NAME bundle:nil] forCellReuseIdentifier:CUSTOM_CELL_ID];

    UISwipeGestureRecognizer* leftSwipeRecognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleLeftSwipe:)];
    leftSwipeRecognizer.direction = UISwipeGestureRecognizerDirectionLeft;
    [self.tableView addGestureRecognizer:leftSwipeRecognizer];

    UISwipeGestureRecognizer* rightSwipeRecognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleRightSwipe:)];
    rightSwipeRecognizer.direction = UISwipeGestureRecognizerDirectionRight;
    [self.tableView addGestureRecognizer:rightSwipeRecognizer];
}

比添加两个滑动处理程序

- (void)handleLeftSwipe:(UISwipeGestureRecognizer*)recognizer
{
    CGPoint point = [recognizer locationInView:self.tableView];
    NSIndexPath* index = [self.tableView indexPathForRowAtPoint:point];

    UITableViewCell* cell = [self.tableView cellForRowAtIndexPath:index];

    if([cell respondsToSelector:@selector(showCustomView)])
    {
        [cell performSelector:@selector(showCustomView)];
    }
}

- (void)handleRightSwipe:(UISwipeGestureRecognizer*)recognizer
{
    CGPoint point = [recognizer locationInView:self.tableView];
    NSIndexPath* index = [self.tableView indexPathForRowAtPoint:point];

    UITableViewCell* cell = [self.tableView cellForRowAtIndexPath:index];

    if([cell respondsToSelector:@selector(hideCustomView)])
    {
        [cell performSelector:@selector(hideCustomView)];
    }
}

现在，在UITableViewDelegate的cellForRowAtIndexPath中，您可以创建自定义UIView并将其附加到出列单元格 .

-(UITableViewCell*)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    CustomCellTableViewCell* cell = (CustomCellTableViewCell*)[tableView dequeueReusableCellWithIdentifier:@"CustomCellTableViewCell" forIndexPath:indexPath];

    NSArray* nibViews = [[NSBundle mainBundle] loadNibNamed:@"CellCustomView"
                                                      owner:nil
                                                    options:nil];

    CellCustomView* customView = (CellCustomView*)[ nibViews objectAtIndex: 0];

    cell.customView = customView;

    return cell;
}

当然，这种加载自定义UIView的方式仅适用于此示例 . 根据需要管理它 .

回复于 2024-04-19T19:41:26+08:00

滑动到删除和“更多”按钮（就像在iOS 7上的邮件应用程序中一样）

20 回答

如何实施

已知问题

来源

更新：

相关问题