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且构网 - 分享程序员编程开发的那些事

以编程方式(文档)Swift UItableView自定义单元格?

更新时间:2022-12-28 15:15:27

我只是玩了一点点。尽管所有的颜色/字体都不太合适,但这将为您提供良好的起点。希望它对你有所帮助。

I just played little bit. Even though all the colors/fonts are not quite right, this will give you good starting point. Hope it helps you.

class Stock {
var name: String?
var action: String?
var price: String?
init(stockData: [String: AnyObject]) {
    if let n = stockData["stockName"] as? String {
        name = n
    }
    if let a = stockData["action"] as? String {
        action = a
    }
    if let p = stockData["stockPrice"] as? Float {
        price = NSString(format: "%.2f", p)
    }
}

var backgroundColor: UIColor {
    if action == "sell" {
        return UIColor.greenColor()
    }
    return UIColor.blueColor()
}

var typeColor: UIColor {
    if action == "sell" {
        return UIColor.blackColor()
    }
    return UIColor.purpleColor()
}

var priceLabelColor: UIColor {
    if action == "sell" {
        return UIColor.redColor()
    }
    return UIColor.greenColor()
}
}


class StockCell: UITableViewCell {

let padding: CGFloat = 5
var background: UIView!
var typeLabel: UILabel!
var nameLabel: UILabel!
var priceLabel: UILabel!

var stock: Stock? {
    didSet {
        if let s = stock {
            background.backgroundColor = s.backgroundColor
            priceLabel.text = s.price
            priceLabel.backgroundColor = s.priceLabelColor
            typeLabel.text = s.action
            typeLabel.backgroundColor = s.typeColor
            nameLabel.text = s.name
            setNeedsLayout()
        }
    }
}

override init(style: UITableViewCellStyle, reuseIdentifier: String?) {
    super.init(style: style, reuseIdentifier: reuseIdentifier)
    backgroundColor = UIColor.clearColor()
    selectionStyle = .None

    background = UIView(frame: CGRectZero)
    background.alpha = 0.6
    contentView.addSubview(background)

    nameLabel = UILabel(frame: CGRectZero)
    nameLabel.textAlignment = .Left
    nameLabel.textColor = UIColor.blackColor()
    contentView.addSubview(nameLabel)

    typeLabel = UILabel(frame: CGRectZero)
    typeLabel.textAlignment = .Center
    typeLabel.textColor = UIColor.whiteColor()
    contentView.addSubview(typeLabel)

    priceLabel = UILabel(frame: CGRectZero)
    priceLabel.textAlignment = .Center
    priceLabel.textColor = UIColor.whiteColor()
    contentView.addSubview(priceLabel)
}

required init(coder aDecoder: NSCoder) {
    fatalError("init(coder:) has not been implemented")
}

override func prepareForReuse() {
    super.prepareForReuse()

}

override func layoutSubviews() {
    super.layoutSubviews()
    background.frame = CGRectMake(0, padding, frame.width, frame.height - 2 * padding)
    typeLabel.frame = CGRectMake(padding, (frame.height - 25)/2, 40, 25)
    priceLabel.frame = CGRectMake(frame.width - 100, padding, 100, frame.height - 2 * padding)
    nameLabel.frame = CGRectMake(CGRectGetMaxX(typeLabel.frame) + 10, 0, frame.width - priceLabel.frame.width - (CGRectGetMaxX(typeLabel.frame) + 10), frame.height)
}
}

在视图控制器中

var stocks: [Stock] = []

override func viewDidLoad() {
    super.viewDidLoad()

    view.backgroundColor = UIColor.whiteColor()

    for stockData in dataArray {
        var stock = Stock(stockData: stockData)
        stocks.append(stock)
    }


    tableView = UITableView(frame: view.bounds, style: .Grouped)
    tableView.delegate = self
    tableView.dataSource = self
    tableView.separatorStyle = .None
    tableView.registerClass(StockCell.self, forCellReuseIdentifier: NSStringFromClass(StockCell))
    view.addSubview(tableView)
}



func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    return stocks.count
}

func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {

    let cell = tableView.dequeueReusableCellWithIdentifier( NSStringFromClass(StockCell), forIndexPath: indexPath) as StockCell
    cell.stock = stocks[indexPath.row]
    return cell

}

func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
    return 70
}

自定义单元格

class StockCell: UITableViewCell {

let padding: CGFloat = 5
var background: UIView!
var typeLabel: UILabel!
var nameLabel: UILabel!
var priceLabel: UILabel!

var stock: Stock? {
    didSet {
        if let s = stock {
            background.backgroundColor = s.backgroundColor
            priceLabel.text = s.price
            priceLabel.backgroundColor = s.priceLabelColor
            typeLabel.text = s.action
            typeLabel.backgroundColor = s.typeColor
            nameLabel.text = s.name
            setNeedsLayout()
        }
    }
}

override init(style: UITableViewCellStyle, reuseIdentifier: String?) {
    super.init(style: style, reuseIdentifier: reuseIdentifier)
    backgroundColor = UIColor.clearColor()
    selectionStyle = .None

    background = UIView(frame: CGRectZero)
    background.alpha = 0.6
    contentView.addSubview(background)

    nameLabel = UILabel(frame: CGRectZero)
    nameLabel.textAlignment = .Left
    nameLabel.textColor = UIColor.blackColor()
    contentView.addSubview(nameLabel)

    typeLabel = UILabel(frame: CGRectZero)
    typeLabel.textAlignment = .Center
    typeLabel.textColor = UIColor.whiteColor()
    contentView.addSubview(typeLabel)

    priceLabel = UILabel(frame: CGRectZero)
    priceLabel.textAlignment = .Center
    priceLabel.textColor = UIColor.whiteColor()
    contentView.addSubview(priceLabel)
}

required init(coder aDecoder: NSCoder) {
    fatalError("init(coder:) has not been implemented")
}

override func prepareForReuse() {
    super.prepareForReuse()

}

override func layoutSubviews() {
    super.layoutSubviews()
    background.frame = CGRectMake(0, padding, frame.width, frame.height - 2 * padding)
    typeLabel.frame = CGRectMake(padding, (frame.height - 25)/2, 40, 25)
    priceLabel.frame = CGRectMake(frame.width - 100, padding, 100, frame.height - 2 * padding)
    nameLabel.frame = CGRectMake(CGRectGetMaxX(typeLabel.frame) + 10, 0, frame.width - priceLabel.frame.width - (CGRectGetMaxX(typeLabel.frame) + 10), frame.height)
}
}