快速显示更多按钮时取消在表格视图单元格上向左滑动

Posted 2023-03-15

【中文标题】快速显示更多按钮时取消在表格视图单元格上向左滑动

【英文标题】：Cancel swipe left on tableview cell when showing more buttons in swift

【发布时间】：2016-05-28 03:32:08

【问题描述】：

我想知道是否有适当的方法可以取消在 tableview 单元格上向左滑动，以便它向后滑动以隐藏按钮。我不确定如何正确地说，大声笑。但是请看下面的GIF。在第一个 GIF 中，按下取消按钮后我没有代码，并且按钮保持可见。

我唯一的想法是使用此代码重新加载单元格self.tableView.reloadRowsAtIndexPaths([indexPath], withRowAnimation: UITableViewRowAnimation.Automatic) 但这让按钮看起来向上移动，而我更希望它看起来单元格向右移动到位。请参阅下面的重新加载 GIF。

我应该如何正确地做到这一点？有关添加按钮的代码及其功能，请参见下文。

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

    let edit = UITableViewRowAction(style: UITableViewRowActionStyle.Normal, title: "Edit") 
        (action, indexPath) in

        if (indexPath == self.indexSelect) 
            print("Editting Selected Cell")
         else 
            print("Editting a difference cell than selected")
        

        let section: Sections = self.frc.objectAtIndexPath(indexPath) as! Sections
        let count: Int = self.sectionCount(section.section!)
        var msg: String?
        let sectionName: String = section.section!

        if (count > 0) 
            msg = "There are \(count) other Items using this Section currently. Editing the Section name \"\(sectionName)\" will affect them all. \n\nThis will be changed immediately!"
        

        let alert = UIAlertController(title: "Edit Section Name", message: msg, preferredStyle: UIAlertControllerStyle.Alert)
        let editAction = UIAlertAction(title: "Edit", style: UIAlertActionStyle.Destructive) 
            UIAlertAction in

            let sectionName = Util.trimSpaces(alert.textFields![0].text!)

            if (sectionName != section.section) 
                if (Util.checkSectionName(sectionName, moc: self.moc!) == false) 
                    let entityDesc = NSEntityDescription.entityForName("Sections", inManagedObjectContext: self.moc!)
                    let newSection: Sections = Sections(entity: entityDesc!, insertIntoManagedObjectContext: self.moc)
                    newSection.section = sectionName

                    do 
                        try self.moc!.save()
                     catch 
                        fatalError("New item save failed")
                    

                    let oldSection: Sections = section

                    let fetchReq = NSFetchRequest(entityName: "Catalog")
                    let pred = NSPredicate(format: "sections.section == %@", oldSection.section!)
                    fetchReq.predicate = pred

                    do 
                        let results = try self.moc!.executeFetchRequest(fetchReq)
                        for rec in results 
                            let catalog: Catalog = rec as! Catalog
                            catalog.sections = newSection
                        

                        do 
                            try self.moc!.save()
                         catch 
                            fatalError("Failed to Save after Delete")
                        
                     catch 
                        fatalError("Fetching Items to delete section failed")
                    

                    self.moc!.deleteObject(oldSection)

                    do 
                        try self.moc!.save()
                     catch 
                        fatalError("Failed to Save after Delete")
                    
                 else 
                    Util.msgAlert("Duplicate Section Name", msg: "\"\(sectionName)\" section name already exists.", curVC: self)
                    self.tableView.reloadRowsAtIndexPaths([indexPath], withRowAnimation: UITableViewRowAnimation.Automatic)
                
             else 
                self.tableView.reloadRowsAtIndexPaths([indexPath], withRowAnimation: UITableViewRowAnimation.Automatic)
            
        
        let cancel = UIAlertAction(title: "Cancel", style: UIAlertActionStyle.Cancel) 
            UIAlertAction in

            //self.tableView.reloadRowsAtIndexPaths([indexPath], withRowAnimation: UITableViewRowAnimation.Automatic)
        

        alert.addAction(editAction)
        alert.addAction(cancel)
        alert.addTextFieldWithConfigurationHandler 
            (txtFld) -> Void in

            txtFld.text = section.section
            txtFld.autocapitalizationType = UITextAutocapitalizationType.Words
            txtFld.autocorrectionType = UITextAutocorrectionType.Default
            txtFld.clearButtonMode = UITextFieldViewMode.WhileEditing
        

        self.presentViewController(alert, animated: true, completion: nil)
    

    edit.backgroundColor = UIColor.init(red: 84/255, green: 200/255, blue: 214/255, alpha: 1)

    let delete = UITableViewRowAction(style: .Destructive, title: "Delete") 
        (action, indexPath) in

        let section: Sections = self.frc.objectAtIndexPath(indexPath) as! Sections
        let count: Int = self.sectionCount(section.section!)

        if (count > 0) 
            let alert = UIAlertController(title: "Confirm Delete", message: "There are \(count) Items using this Section currently. Deleting this Section will reset them all to blank. \n\nThis can't be undone and will take affect immediately!", preferredStyle: UIAlertControllerStyle.Alert)
            let cancel = UIAlertAction(title: "Cancel", style: UIAlertActionStyle.Cancel)  UIAlertAction in 
            let deleteAction = UIAlertAction(title: "Delete", style: UIAlertActionStyle.Destructive)  UIAlertAction in
                var blankSection: Sections?

                var fetchReq = NSFetchRequest(entityName: "Sections")
                var pred = NSPredicate(format: "section == %@", "")
                fetchReq.predicate = pred

                do 
                    let results = try self.moc!.executeFetchRequest(fetchReq)
                    blankSection = (results.first as! Sections)
                 catch 
                    fatalError("Fetching blank section failed")
                

                fetchReq = NSFetchRequest(entityName: "Catalog")
                pred = NSPredicate(format: "sections.section == %@", section.section!)
                fetchReq.predicate = pred

                do 
                    let group = try self.moc!.executeFetchRequest(fetchReq)
                    for rec in group 
                        let catalog: Catalog = rec as! Catalog
                        catalog.sections = blankSection
                    

                 catch 
                    fatalError("Fetching Items to delete section failed")
                

                self.moc!.deleteObject(section)

                do 
                    try self.moc!.save()
                 catch 
                    fatalError("Failed to Save after Delete")
                

                if (self.sectionUpdateProtocol != nil) 
                    self.sectionUpdateProtocol!.sectionUpdate(self, section: blankSection!)
                

                //self.navigationController!.popViewControllerAnimated(true)
            

            alert.addAction(deleteAction)
            alert.addAction(cancel)

            self.presentViewController(alert, animated: true, completion: nil)
         else 
            self.moc!.deleteObject(section)

            do 
                try self.moc!.save()
             catch 
                fatalError("Failed to Save after Delete")
            
        

    

    return [delete, edit]

【问题讨论】：

看看 SWTableViewCell 或者看看他们是如何实现的。 github.com/CEWendel/SWTableViewCell

【参考方案1】：

只需调用：

tableView.setEditing(false, animated: true)   

【讨论】：

就在鼻子上，这就是我想要的。谢谢！

删除按钮需要一段时间才能消失。有没有办法让它立即消失？我什至尝试在解除警报的完成处理程序中执行上述操作，但这也不起作用。我什至将动画设置为 FALSE，也失败了

@zulkarnainshah 我知道这已经晚了，但你可以试试tableView.reloadData()（设置动画：false，不过应该可以）