Swift - UITableView

建立UITablView

import UIKit

class ViewController: UIViewController,UITableViewDataSource,UITableViewDelegate{
    
    var Names = ["A","B","C","D","E","F"]
    var tableView:UITableView!
    override func viewDidLoad() {
        super.viewDidLoad()
        //建立表格圖
        self.tableView = UITableView(frame: self.view.frame, style: .plain)
        //將代理,數據來源設爲本身
        self.tableView?.delegate = self
        self.tableView?.dataSource = self
        //建立表頭標籤
        let headerLabel = UILabel(frame: CGRect(x: 0, y: 0, width: self.view.bounds.width, height: 30))
        headerLabel.text = "Header"
        self.tableView?.tableHeaderView = headerLabel
        
        self.view.addSubview(tableView)
    }
    //設置分區數(不設置默認爲1)
    func numberOfSections(in tableView: UITableView) -> Int {
        return 1
    }
    //設置單元格數
    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return Names.count
    }
    //設置單元格內容
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        //設置重用單元格名稱
        let identifier = "reusedCell"
        //使用重用單元格
        var cell = tableView.dequeueReusableCell(withIdentifier: identify)
        //若是單元格爲nil建立重用單元格
        if cell == nil{
            cell = UITableViewCell(style: .default, reuseIdentifier: identify)
        }
        cell?.textLabel?.text = Names[indexPath.row]
        return cell!
    }
    //自定義單元格高度
    func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
        return 40
    }
    //點擊單元格響應時間
    func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
        self.tableView?.deselectRow(at: indexPath, animated: true)//使被點擊的單元格的顏色當即恢復
        let cell = tableView.cellForRow(at: indexPath)
        if cell?.accessoryType == UITableViewCell.AccessoryType.none{
            cell?.accessoryType = .checkmark
            print("你選擇了:\(String(describing: cell?.textLabel?.text))")
        }else{
            cell?.accessoryType = .none
        }
    }
    
}

使用不一樣樣式單元格

import UIKit

class CustomizeTableViewCell: UITableViewCell {
    var UserImage:UIImageView!
    var UserName:UILabel!
    var Detail:UIButton!
    override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
        super.init(style: style, reuseIdentifier: reuseIdentifier)
        
        self.UserImage = UIImageView(image: UIImage(named: "UserImage"))
        self.UserImage.center = CGPoint(x: 30, y: 22)
        
        self.UserName = UILabel(frame: CGRect(x: 80, y: 0, width: 120, height: 40))
        self.UserName.text = "自定義單元格"
        
        self.Detail = UIButton(frame: CGRect(x: 240, y: 8, width: 60, height: 24))
        self.Detail.setTitle("詳情", for: .normal)
        self.Detail.backgroundColor = UIColor.gray
        self.Detail.addTarget(self, action: #selector(showDetail), for: .touchUpInside)
        
        self.addSubview(self.UserName)
        self.addSubview(self.UserImage)
        self.addSubview(self.Detail)
    }
    @objc func showDetail(){
        print("顯示詳情信息")
    }
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
}

自定義UItableViewCell

建立一個Cocoa Touch class文件,設置父類:UITableViewCell,名稱爲CustomizeTableViewCellswift

編輯CustomizeTableViewCell:ide

import UIKit

class CustomizeTableViewCell: UITableViewCell {
    var UserImage:UIImageView!
    var UserName:UILabel!
    var Detail:UIButton!
    override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
        super.init(style: style, reuseIdentifier: reuseIdentifier)
        
        self.UserImage = UIImageView(image: UIImage(named: "UserImage"))
        self.UserImage.center = CGPoint(x: 30, y: 22)
        
        self.UserName = UILabel(frame: CGRect(x: 80, y: 0, width: 120, height: 40))
        self.UserName.text = "自定義單元格"
        
        self.Detail = UIButton(frame: CGRect(x: 240, y: 8, width: 60, height: 24))
        self.Detail.setTitle("詳情", for: .normal)
        self.Detail.backgroundColor = UIColor.gray
        self.Detail.addTarget(self, action: #selector(showDetail), for: .touchUpInside)
        
        self.addSubview(self.UserName)
        self.addSubview(self.UserImage)
        self.addSubview(self.Detail)
    }
    @objc func showDetail(){
        print("顯示詳情信息")
    }
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
}

編輯ViewController:ui

import UIKit

class ViewController: UIViewController,UITableViewDataSource,UITableViewDelegate{
    var user = ["A","B","C"]
    override func viewDidLoad() {
        super.viewDidLoad()
        let tableView = UITableView(frame: self.view.frame)
        tableView.dataSource = self
        tableView.delegate = self
        self.view.addSubview(tableView)
    }
    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
       return user.count
    }
    
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let identifier = "reusedCell"
        var cell:CustomizeTableViewCell? = tableView.dequeueReusableCell(withIdentifier: identifier) as? CustomizeTableViewCell
        if cell == nil{
            cell = CustomizeTableViewCell(style: .default, reuseIdentifier: identifier)
        }
        cell?.UserName.text = user[indexPath.row]
        return cell!
    }

}

給文章添加章節和索引

import UIKit

class ViewController: UIViewController,UITableViewDataSource,UITableViewDelegate{
    
    var Section = ["A","B","C","D","E","F","G","H","I","G","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","z"]
    var Content =   [["1","2","3"],["3","4"],["5","6"],["7","8"],["9","10"],["11","12"],["13","14"],["15","16"],["12","21"],["1","1"],["1","1"],["1","1"],["1","1"],["1","1"],["1","1"],["1","1"],["1","1"],["1","1"],["1","1"],["1","1"],["1","1"],["1","1"],["1","1"],["1","1"],["1","1"],["1","1"]]
    var tableView:UITableView!
    override func viewDidLoad() {
        super.viewDidLoad()
        //建立表格圖
        self.tableView = UITableView(frame: self.view.frame, style: .grouped)
        self.tableView?.delegate = self
        self.tableView?.dataSource = self
        //建立表頭標籤
        let headerLabel = UILabel(frame: CGRect(x: self.view.bounds.width/2, y: 0, width: self.view.bounds.width, height: 30))
        headerLabel.text = "添加章節和索引"
        self.tableView?.tableHeaderView = headerLabel
        self.view.addSubview(tableView)
        print(Content.count)
    }
    //設置分區數(不設置默認爲1)
    func numberOfSections(in tableView: UITableView) -> Int {
        return Section.count
    }
    //設置單元格數
    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return Content[section].count
    }
    //設置單元格表頭
    func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
        return self.Section[section]
    }
    //設置單元格表尾
    func tableView(_ tableView: UITableView, titleForFooterInSection section: Int) -> String? {
        return "有\(self.Content[section].count)個控件"
    }
    //設置索引內容
    func sectionIndexTitles(for tableView: UITableView) -> [String]? {
        return self.Section
    }
    //設置單元格內容
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let identifier = "reusedCell"
        var cell = tableView.dequeueReusableCell(withIdentifier: identify)
        if cell == nil{
            cell = UITableViewCell(style: .default, reuseIdentifier: identify)
        }
        let section = indexPath.section
        var data = self.Content[section]
        cell?.textLabel?.text = data[indexPath.row]
        return cell!
    }
    //點擊單元格響應時間
    func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
        self.tableView?.deselectRow(at: indexPath, animated: true)//使被點擊的單元格的顏色當即恢復
        let section = indexPath.section
        var data = self.Content[section]
        let alertController = UIAlertController(title: "提示", message: "你點擊了:\(data[indexPath.row])", preferredStyle: .alert)
        let ok = UIAlertAction(title: "肯定", style: .default, handler: nil)
        alertController.addAction(ok)
        present(alertController, animated: true, completion: nil)
    }
    
}

單元格的刪除,插入,移動

import UIKit

class ViewController: UIViewController,UITableViewDataSource,UITableViewDelegate{
    var SectionNum = ["delete","insert","move"]
    var Content = [["A","B"],["C","D"],["E","F"]]
    var tableView:UITableView!
    override func viewDidLoad() {
     super.viewDidLoad()
        tableView = UITableView(frame: self.view.frame)
        tableView.dataSource = self
        tableView.delegate = self
        //設置是否爲編輯模式
        tableView.setEditing(false, animated: true)
        self.view.addSubview(tableView)
        //添加一個手勢來開啓/關閉編輯模式
        let Tap = UITapGestureRecognizer(target: self, action: #selector(OpenEdit))
        Tap.numberOfTapsRequired = 2
        Tap.numberOfTouchesRequired = 1
        self.view.addGestureRecognizer(Tap)
        
    }
    @objc func OpenEdit(){
        if self.tableView.isEditing{
            tableView.setEditing(false, animated: true)
        }else{
            tableView.setEditing(true, animated: true)
        }
    }
    //設置區域數
    func numberOfSections(in tableView: UITableView) -> Int {
        return SectionNum.count
    }
    //設置行數
    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        let data = Content[section]
        return data.count
    }
    //設置內容
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let identifier = "reusedCell"
        var cell = tableView.dequeueReusableCell(withIdentifier: identifier)
        if cell == nil{
            cell = UITableViewCell(style: .default, reuseIdentifier: identifier)
        }
        let data = Content[indexPath.section]
        cell?.textLabel?.text = data[indexPath.row]
        return cell!
    }
    //設置章節名稱
    func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
        return SectionNum[section]
    }
    //設置編輯狀態下顯示的圖標(none,insert,delete三種圖案)
    func tableView(_ tableView: UITableView, editingStyleForRowAt indexPath: IndexPath) -> UITableViewCell.EditingStyle {
        if indexPath.section == 0{
            return UITableViewCell.EditingStyle.delete
        }else if indexPath.section == 1{
            return UITableViewCell.EditingStyle.insert
        }
        return UITableViewCell.EditingStyle.none
    }
    //使用刪除,插入執行此方法
    func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCell.EditingStyle, forRowAt indexPath: IndexPath) {
        if editingStyle == .delete{
            self.Content[indexPath.section].remove(at: indexPath.row) //刪除選項,並設置刪除的效果
            //更新表格數據
            self.tableView.reloadData()
        }else {
            self.Content[indexPath.section].insert("F", at: indexPath.row)
            self.tableView.reloadData()
            
        }
    }
    //修改刪除提示的問題
    func tableView(_ tableView: UITableView, titleForDeleteConfirmationButtonForRowAt indexPath: IndexPath) -> String? {
        return "X"
    }
    //設置單元格的位置能夠拖動
    func tableView(_ tableView: UITableView, canMoveRowAt indexPath: IndexPath) -> Bool {
        if indexPath.section == 2{
            return true
        }
        return false
    }
    //移動完單元格調用此方法
    func tableView(_ tableView: UITableView, moveRowAt sourceIndexPath: IndexPath, to destinationIndexPath: IndexPath) {
        print("你使用了此方法")
        let formRow = sourceIndexPath.row
        let toRow = destinationIndexPath.row
        let formContent = Content[formRow]
        Content.remove(at: formRow)
        Content.insert(formContent, at: toRow)
        }
    }

TableViewCell嵌套

import UIKit

class ViewController: UIViewController,UITableViewDataSource,UITableViewDelegate{
    var articles = ["A","B"]
    var Contents = ["1","2"]
    override func viewDidLoad() {
        super.viewDidLoad()
        let tableView = UITableView(frame:self.view.frame)
        tableView.delegate = self
        tableView.dataSource = self
        tableView.separatorStyle = .none
        self.view.addSubview(tableView)
    }
    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return articles.count*2
    }
    
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let idA = "articlesCell"
        let idB = "ContentsCell"
        var CellA:UITableViewCell?
        var CellB:UITableViewCell?
        if indexPath.row%2 == 0{
            CellA = tableView.dequeueReusableCell(withIdentifier: idA)
            if CellA == nil{
                CellA = UITableViewCell(style: .default, reuseIdentifier: idA)
            }
            CellA?.textLabel?.text = articles[indexPath.row/2]
            return CellA!
        }else{
            CellB = tableView.dequeueReusableCell(withIdentifier: idB)
            if CellB == nil{
                CellB = UITableViewCell(style: .default, reuseIdentifier: idB)
            }
            CellB?.textLabel?.text = Contents[indexPath.row/2]
            return CellB!
        }
    }
    
    
}

嵌套自定義單元格

建立一個自定義swift文件,父類爲UITableViewCell,名稱爲CustomizeTableVIewCell
編輯CustomizeTableViewCell:代理

import UIKit

class CustomizeTableViewCell: UITableViewCell,UITableViewDataSource,UITableViewDelegate {
    var tableView:UITableView!
    var Content:[String] = []
    override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
        super.init(style: style, reuseIdentifier: reuseIdentifier)
        //進行初始化,後續在進行更改
        tableView = UITableView(frame: CGRect(x: 0, y: 0, width: 300, height: 50))
        tableView.dataSource = self
        tableView.delegate = self
        //設置是否容許滑動(設爲false,防止內容跟着手指滑動而滑動)
        tableView.isScrollEnabled = false
        tableView.separatorStyle = .none
        self.addSubview(tableView)
    }
    //設置單元格數量
    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return Content.count
    }
    //設置單元格內容
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let id = "reusedCell"
        var cell = tableView.dequeueReusableCell(withIdentifier: id)
        if cell == nil{
            cell = UITableViewCell(style: .default, reuseIdentifier: id)
        }
        cell?.textLabel?.text = Content[indexPath.row]
        cell?.textLabel?.font = UIFont.systemFont(ofSize: 12)
        cell?.textLabel?.numberOfLines = 0
        return cell!
    }
    //設置單元格高度
    func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
        let ContentNum = Content[indexPath.row]
        //計算內容高度(ContentSize.width/170計算有多少行文字)
        let ContentSize = ContentNum.boundingRect(with: CGSize(), options: NSStringDrawingOptions.usesFontLeading, attributes: nil, context: nil)
        let cellHeight = ContentSize.height*(ContentSize.width/170)
        if cellHeight < 30{
            return 30
        }else{
            return cellHeight
        }
    }
    //根據數據源內容來設置UITableView高度(+50防止內容擁擠)
    func setContentForTable(_ content:[String]){
        self.Content = content
        
        var tableHeight:CGFloat = 0
        for i in 0..<content.count
        {
            let ContentSize = Content[i].boundingRect(with: CGSize(), options: NSStringDrawingOptions.usesFontLeading, attributes: nil, context: nil)
        tableHeight += ContentSize.height*(ContentSize.width/170)
        }
        tableView.frame = CGRect(x: 20, y: 0, width: 300, height: tableHeight + 50)
        tableView.reloadData()
    }
    func getMyHeight()->CGFloat{
        return tableView.frame.size.height
    }
    
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
}

編輯ViewController:code

import UIKit

class ViewController: UIViewController,UITableViewDataSource,UITableViewDelegate{
    var articles = ["徐志摩","克萊兒▪麥克福爾","東野圭吾"]
    var Contents = [["我是天空裏的一片雲,偶爾投影在你的波心,你沒必要訝異,更無須歡喜,在轉瞬間消滅了蹤跡。你我相逢在黑夜的海上,你有你的,我有個人,方向,你記得也好,最好你忘掉,在這交會時互放的光亮"],["當靈魂休眠的時候,我敢確定它們獲得了片刻的平靜和安寧。111111111111111111111111"],["你我都不可能擺脫時鐘的束縛,彼此都已淪爲社會這個時鐘的齒輪,一旦少了齒輪,時鐘就會出亂子。縱然本身渴望率性而爲,周遭也不允許,咱們雖然獲得了安定,但失去自由也是不爭的事實。"]]
    override func viewDidLoad() {
        super.viewDidLoad()
        let tabView = UITableView(frame:CGRect(x: 0, y: 20, width: self.view.bounds.width, height: self.view.bounds.height))
        tabView.delegate = self
        tabView.dataSource = self
        tabView.separatorStyle = .none
        self.view.addSubview(tabView)
    }
    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return articles.count*2
    }
    
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let idA = "cellForArticles"
        let idB = "cellForContent"
        
        var cell1:UITableViewCell?
        var cell2:CustomizeTableViewCell?
        
        if indexPath.row%2 == 0{
            cell1 = tableView.dequeueReusableCell(withIdentifier: idA)
            if cell1 == nil{
                cell1 = UITableViewCell(style: .default, reuseIdentifier: idA)
            }
            cell1?.textLabel?.text = articles[indexPath.row/2]
            cell1?.textLabel?.textColor = UIColor.gray
            cell1?.backgroundColor = UIColor.black
            cell1?.textLabel?.font = UIFont.systemFont(ofSize: 16)
            return cell1!
        }else{
            cell2 = tableView.dequeueReusableCell(withIdentifier: idB) as? CustomizeTableViewCell
            if cell2 == nil{
                cell2 = CustomizeTableViewCell(style: .default, reuseIdentifier: idB)
            }
            let content = Contents[indexPath.row/2]
            cell2?.setContentForTable(content)
            return cell2!
        }
    }
    func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
        if indexPath.row % 2 == 0{
            return 40
        }else{
            let Content = Contents[indexPath.row/2]
            var cellHeight:CGFloat = 0
            for i in 0..<Content.count{
                let ContentSize = Content[i].boundingRect(with: CGSize(), options: NSStringDrawingOptions.usesFontLeading, attributes: nil, context: nil)
                cellHeight += ContentSize.height*(ContentSize.width/170)
            }
            return cellHeight + 50
        }
    }
}

滾動到底部

使用scrollToRow方法滾動到最後一行orm

let secon = 1 //最後一個分組的索引(0開始,若是沒有分組則爲0)
let rows = 10 //最後一個分組最後一條項目的索引
let indexPath = IndexPath(row: rows, section: secon)
self.tableView?.scrollToRow(at: indexPath, at:.bottom, animated: true)

使用setContentOffset設置偏移量實現滾動:索引

let offset = CGPoint(x:0, y:self.tableView!.contentSize.height
                                - self.tableView!.bounds.size.height)
self.tableView!.setContentOffset(offset, animated: true)
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