tabelViewCell的定制

UITableViweCell的定制(手写)

 //MARK: - 属性
    //1.tableView
    let tableView = UITableView.init(frame: UIScreen.mainScreen().bounds, style: .Plain)
    //2.数据源数组
    lazy var dataArray:[NSDictionary] = {
    
        var tempArray = [NSDictionary]()
        
        //1.获取plist文件的路径
        let path = NSBundle.mainBundle().pathForResource("data2.plist", ofType: nil)
        //2.拿到plist文件最外层的数组
        //将plist文件转换成OC的数组(前提是plist的最外层是数组)
        //参数:plist文件的路径
        let plistArray = NSArray.init(contentsOfFile: path!)
        
        //3.遍历数组拿到里面的字典
        for item in plistArray!{
        
            let dict = item as! NSDictionary
            
            //将字典存到数据源数组中
            tempArray.append(dict)
            
        }
        
        return tempArray
    }()
    
    
    

    //MARK: - 生命周期
    override func viewDidLoad() {
        super.viewDidLoad()
        //1.添加到界面上
        self.view.addSubview(self.tableView)
        //2.设置代理
        self.tableView.dataSource = self
        self.tableView.delegate = self
        //3.设置行高
        self.tableView.rowHeight = 225
    }
}

//MARK: - tableView DataSource
extension ViewController: UITableViewDataSource{

    //1.设置每个分组的cell的个数
    func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        
        return self.dataArray.count
    }
    
    //2.创建celll
    func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
        
        //1.去复用池中查找可以复用的cell
        var cell = tableView.dequeueReusableCellWithIdentifier("cell") as? ManTableViewCell
        
        //2.判断是否找到可以复用的cell
        if cell == nil {
            
            cell = ManTableViewCell.init(style: .Subtitle, reuseIdentifier: "cell")
        }
        
        //3.刷新数据
        //a.拿到当前cell对应字典
        let dict = self.dataArray[indexPath.row]
        //b.取到图片二进制
        let data = dict["image_data"] as! NSData
        //将二进制转换成图片
        //封面
        cell?.coverImageView.image = UIImage.init(data: data)
        //标题
        cell?.titleLabel.text = dict["title"] as? String
        //作者头像
        let data2 = dict["autorIcon_data"] as! NSData
        cell?.iconButton.setImage(UIImage.init(data: data2), forState: .Normal)
        //作者名
        cell?.authorNameLabel.text = dict["author_name"] as? String
        
        
        //4.返回cell
        return cell!
        
        
    }

自己定制的tableViewCell

//定制cell的步骤:
//1.创建一个类继承自UITableViewCell
//2.声明cell上所有的子视图对应的属性
//3.在构造方法中去添加子视图(不需要设置frame)。注意:如果想要将子视图直接添加到cell上，不能通过cell去调用addSubView方法，而是用cell的contentView去调用addSubView方法
//4.在layoutSubViews方法中去设置子视图的frame


//1.封面
//2.头像
//3.作者名
//4.标题
//5.透明层
class ManTableViewCell: UITableViewCell {

    //MARK: - 第二步,声明属性
    //1.封面
    let coverImageView = UIImageView()
    //2.头像
    let iconButton = UIButton()
    //3.作者名
    let authorNameLabel = UILabel()
    //4.标题
    let titleLabel = UILabel()
    //5.透明层
    let alphaView = UIView()
    
    //MARK: - 第三步,重写构造方法，添加子视图
    override init(style: UITableViewCellStyle, reuseIdentifier: String?) {
        super.init(style: style, reuseIdentifier: reuseIdentifier)
        
        //1.封面
        self.contentView.addSubview(coverImageView)
        //2.头像
        self.contentView.addSubview(iconButton)
        //3.作者名
        self.contentView.addSubview(authorNameLabel)
        self.authorNameLabel.textColor = UIColor.whiteColor()
        //4.标题
        self.contentView.addSubview(titleLabel)
        self.titleLabel.textColor = UIColor.whiteColor()
        //5.透明层
        self.contentView.addSubview(alphaView)
        self.alphaView.backgroundColor = UIColor.init(red: 0, green: 0, blue: 0, alpha: 0.5)
        
    }
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    

}


extension ManTableViewCell{

    //MARK: - 第四步，计算子视图的frame
    override func layoutSubviews() {
        super.layoutSubviews()
        //通用
        let cellW = self.frame.size.width
        let cellH = self.frame.size.height
        let margin:CGFloat = 20

        //1.封面
        let coverX: CGFloat = 0
        let coverY: CGFloat = 0
        let coverW = cellW
        let coverH = cellH
        self.coverImageView.frame = CGRectMake(coverX, coverY, coverW, coverH)
        //2.头像
        let iconX = margin
        let iconY = margin
        let iconW: CGFloat = 80
        let iconH: CGFloat = 80
        self.iconButton.frame = CGRectMake(iconX, iconY, iconW, iconH)
        //切圆
        iconButton.layer.masksToBounds = true
        iconButton.layer.cornerRadius = 40
        
        
        //3.作者名
        let authorX = iconX + iconW + margin
        let authorH: CGFloat = 20
        let authorY = iconY + iconH/2 - authorH/2
        let authorW = cellW - authorX - margin
        authorNameLabel.frame = CGRectMake(authorX, authorY, authorW, authorH)
        //4.标题
        let titleX = margin
        let titleH: CGFloat = 20
        let titleY = cellH - margin - titleH
        let titleW = cellW - margin*2
        titleLabel.frame = CGRectMake(titleX, titleY, titleW, titleH)
        //5.透明层
        let alphaX:CGFloat = 0
        let alphaH = margin + titleH + margin
        let alphaY = cellH - alphaH
        let alphaW = cellW
        alphaView.frame = CGRectMake(alphaX,alphaY, alphaW, alphaH)
        
    }
}

重点

 //MARK: - 属性
    //1.数据源数组
    lazy var dataArray:[DataModel] = {
    
        return self.getData()
    }()

    //2.tableView
    let tableView = UITableView.init(frame: CGRectZero, style: .Plain)
    
    //3.存储frameModel的数组
    var frameArray = [FrameModel]()
    
    
    //MARK: - 生命周期
    override func viewDidLoad() {
        super.viewDidLoad()
        //1.设置frame
        self.tableView.frame = self.view.bounds
        //2.添加到界面上
        self.view.addSubview(self.tableView)
        //3.设置代理
        self.tableView.dataSource = self
        self.tableView.delegate = self
    }

}

//MARK: - tableView Delegate
extension ViewController:UITableViewDelegate{

    func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
        
        let frameModel = self.frameArray[indexPath.row]
        
        return frameModel.cellHeight
    }
}

//MARK: - tableView DataSource
extension ViewController:UITableViewDataSource{
    
    //1.设置每个分组cell的个数
    func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        
        return self.dataArray.count
    }
    
    //2.创建cell
    func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
        
        var cell = tableView.dequeueReusableCellWithIdentifier("cell") as? MyTableViewCell
        
        if cell == nil {
            
            cell = MyTableViewCell.init(style: .Subtitle, reuseIdentifier: "cell")
            //取消选中效果
            cell?.selectionStyle = .None
            
        }
        
        //刷新数据
        let model = self.dataArray[indexPath.row]
        let frameModel = self.frameArray[indexPath.row]

        cell?.model = model
        cell?.frameModel = frameModel
        
        
        
        return cell!
    }

}



//MARK: - 获取数据
extension ViewController{

    func getData() -> [DataModel]{
        var tempArray = [DataModel]()
        
        //1.拿到plist文件的路径
        let path = NSBundle.mainBundle().pathForResource("statuses.plist", ofType: nil)
        //2.获取plist文件中的数组
        let plistArray = NSArray.init(contentsOfFile: path!)
        //3.遍历数组，拿到里面的字典
        for item in plistArray! {
            let dict  = item as! NSDictionary
            
            //将字典转换成对应的数据模型
            let model = DataModel(dict: dict)
            
            //根据数据模型创建frameModel
            let frameModel = FrameModel(model: model)
            
            //将数据模型存到数据源数组中
            tempArray.append(model)
            //将frameModel存到数组中
            self.frameArray.append(frameModel)
        }
        
        
        
        return tempArray
    }
    
}

DataModel

//数据模型类:专门负责数据的存储和操作
class DataModel: NSObject {

    //MARK: - 属性
    //1.文字
    var text = ""
    //2.头像
    var icon = ""
    //3.用户名
    var name = ""
    //4.是否是VIP
    var vip = 0
    //5.图片(这个属性可能没有)
    var picture:String? = nil

    //MARK: - 构造方法
    //通过制定的字典创建模型
    init(dict:NSDictionary) {
        
        self.text = dict["text"] as! String
        self.icon = dict["icon"] as! String
        self.name = dict["name"] as! String
        self.vip = dict["vip"] as! Int
        self.picture = dict["picture"] as? String
    }
}

FrameModel

//数据模型类:专门负责数据的存储和操作
class DataModel: NSObject {

    //MARK: - 属性
    //1.文字
    var text = ""
    //2.头像
    var icon = ""
    //3.用户名
    var name = ""
    //4.是否是VIP
    var vip = 0
    //5.图片(这个属性可能没有)
    var picture:String? = nil

    //MARK: - 构造方法
    //通过制定的字典创建模型
    init(dict:NSDictionary) {
        
        self.text = dict["text"] as! String
        self.icon = dict["icon"] as! String
        self.name = dict["name"] as! String
        self.vip = dict["vip"] as! Int
        self.picture = dict["picture"] as? String
    }
}

定制的tableView

//1.声明所需要的所有的子视图对应的属性
//2.将子视图添加到cell上
//3.计算frame


//1.头像
//2.名字
//3.vip
//4.文字
//5.图片
class MyTableViewCell: UITableViewCell {
    //MARK: - 属性
    //1.头像
    let iconImageView = UIImageView()
    //2.名字
    let nameLabel = UILabel()
    //3.vip
    let vipImageView = UIImageView()
    //4.文字
    let contentLabel = UILabel()
    //5.图片
    let pictureImageView = UIImageView()
    
    //MARK: - 在给cell的模型赋值的时候去设置子视图的属性
    //6.获取模型的值
    var frameModel: FrameModel? = nil
    
    var model: DataModel? = nil{
    
        didSet{
        
            //1.头像
            self.iconImageView.image = UIImage.init(named: (model?.icon)!)
            //2.名字
            self.nameLabel.text = model?.name
            //3.vip
            //注意:在cell中如果出现if语句，必须把对应的else的情况描述清除
            if model?.vip == 1 {
                
                self.vipImageView.hidden = false
                self.nameLabel.textColor = UIColor.redColor()
            }else{
                
                self.vipImageView.hidden = true
                self.nameLabel.textColor = UIColor.blackColor()
            }
            //4.文字
            self.contentLabel.text = model?.text
            
            //5.图片
            if model!.picture == nil {
                
                self.pictureImageView.hidden = true
                
            }else{
            
                self.pictureImageView.hidden = false
                let path = NSBundle.mainBundle().pathForResource(model?.picture, ofType: nil)
                self.pictureImageView.image = UIImage.init(contentsOfFile: path!)
            }
            
            
            
        }
    }
    
    
    //MARK: - 构造方法
    override init(style: UITableViewCellStyle, reuseIdentifier: String?) {
        super.init(style: style, reuseIdentifier: reuseIdentifier)
        
        //1.头像
        self.contentView.addSubview(iconImageView)
        //self.iconImageView.backgroundColor = UIColor.yellowColor()
        //2.名字
        self.contentView.addSubview(nameLabel)
        self.nameLabel.font = UIFont.systemFontOfSize(13)
        //self.nameLabel.backgroundColor = UIColor.greenColor()
        //3.vip 
      self.contentView.addSubview(vipImageView)
        vipImageView.image = UIImage.init(named: "vip")
        //4.文字
      self.contentView.addSubview(contentLabel)
        self.contentLabel.font = UIFont.systemFontOfSize(14)
        self.contentLabel.numberOfLines = 0
        
        //contentLabel.backgroundColor = UIColor.orangeColor()
        
        
        //5.图片
        self.contentView.addSubview(pictureImageView)
        self.pictureImageView.backgroundColor = UIColor.purpleColor()
        
    }
    
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }

}

//MARK: - 计算frame
extension MyTableViewCell{

    override func layoutSubviews() {
        super.layoutSubviews()
        
        self.iconImageView.frame = self.frameModel!.iconFrame
        self.nameLabel.frame = self.frameModel!.nameFrame
        self.vipImageView.frame = self.frameModel!.vipFrame
        self.contentLabel.frame = self.frameModel!.textFrame
        self.pictureImageView.frame = self.frameModel!.pictureFrame
        
    }
    
    
    /////============////
    
    
    ////=============////
    
    
}


//MARK: - 其他
extension MyTableViewCell{

    //在通过xib的方式创建cell的时候才会调用
    override func awakeFromNib() {
        super.awakeFromNib()
        // Initialization code
    }
    
    //选中cell的时候会自动调用
    override func setSelected(selected: Bool, animated: Bool) {
        super.setSelected(selected, animated: animated)
        
        // Configure the view for the selected state
    }
}