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[已解决]swift编辑和删除UICollectionViewCell

Swift crifan 112浏览 0评论

原先已经画好了:

现在需要去实现:

点击➖减号,每个cell右上角加上一个删除的小按钮图标。

swift uicollectionviewcell edit

swift uicollectionviewcell delete

ios – Swift: UICollectionViewCell didSelectItemAtIndexPath Change backgroundColor – Stack Overflow

UICollectionView Tutorial Part 2: Reusable Views and Cell Selection – Ray Wenderlich

Animating Inserts and Deletes on UICollectionView with Swift – DZone Mobile

ios – Set up a UICollectionView delete button in Swift – Stack Overflow

ios – How to add a delete button to Collection View Cell in Swift? – Stack Overflow

ios – Delete a UICollectionViewCell from the cell – Stack Overflow

后来添加了代码:

    func collectionView(collectionView: UICollectionView, didSelectItemAtIndexPath indexPath: NSIndexPath) {
        print("ConversationManageViewController didSelectItemAtIndexPath indexPath=\(indexPath)")
       
        let curCell:UICollectionViewCell = self.collectionView.cellForItemAtIndexPath(indexPath)!
        //unselect current cell
        curCell.selected = false
        if let selectedContactItem = getContactItem(indexPath) {
            if !isSperialItem(selectedContactItem) {
                let selectedPersonItem:PersonItem = selectedContactItem as! PersonItem
                let personInfoVC = PersonInfoViewController(personItem: selectedPersonItem)
//                self.showViewController(personInfoVC, sender: personInfoVC)
                self.showViewController(personInfoVC, sender: self)
            }else if selectedContactItem.id == addPersonItemId  {
               
            }else if selectedContactItem.id == removePersonId  {
                self.isRemoveMode = !self.isRemoveMode
                print("self.isRemoveMode=\(self.isRemoveMode)")
                self.collectionView.reloadData()
            }
        }
    }
    func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {
        let cell:UICollectionViewCell = collectionView.dequeueReusableCellWithReuseIdentifier(StrIdConversationManageCollectionViewCell, forIndexPath: indexPath)
        if let contactItem = getContactItem(indexPath) {
            let contactImage = contactItem.headerImageLarge
            let contactImageView:UIImageView = UIImageView(image: contactImage)
            //            contactImageView.center.x = cell.contentView.center.x
            cell.contentView.addSubview(contactImageView)
           
            constrain(contactImageView, cell) { contactImageView, cell in
                contactImageView.top == cell.top
                contactImageView.centerX == cell.centerX
            }
           
            if !isSperialItem(contactItem) {
                let nameLabel:UILabel = UILabel()
                nameLabel.text = contactItem.name
                nameLabel.textAlignment = NSTextAlignment.Center
                nameLabel.font = UIFont.systemFontOfSize(12)
                cell.contentView.addSubview(nameLabel)
               
                constrain(nameLabel, cell) { nameLabel, cell in
                    nameLabel.bottom == cell.bottom
                    nameLabel.centerX == cell.centerX
                }
                
                if isRemoveMode {
                    //here is got reusable cell, not draw it again, just need add extra delete button
                    let removeBadgeButton:UIButton = UIButton()
                    removeBadgeButton.setBackgroundImage(UIImage(named: "remove_badge"), forState: UIControlState.Normal)
                    removeBadgeButton.tag = indexPath.row
                    removeBadgeButton.addTarget(self, action: Selector("removeSelectedPerson:"), forControlEvents: UIControlEvents.TouchUpInside)
                    cell.contentView.addSubview(removeBadgeButton)
                   
                    constrain(removeBadgeButton, cell) { removeBadgeButton, cell in
                        removeBadgeButton.left == cell.right 10
                        removeBadgeButton.top == cell.top 5
                    }
                }
            }
        }
        
        return cell
    }

但是出现名字重叠的现象(内部头像估计也是画了两次,只不过新的头像覆盖掉旧的头像,看不出来图片也是重叠的而已):

[已解决]swift中UICollectionViewCell在reloadData()之后显示内容出现重叠现象

转载请注明:在路上 » [已解决]swift编辑和删除UICollectionViewCell

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