如何用字典中的数据填充UITableView.迅速 [英] How to fill UITableView with a data from Dictionary. Swift

问题描述

请帮我用字典中的数据填充表格视图单元格.例如，我有这样的单元格:

Please help me with filling table view cells with data from a dictionary. For instance, I have cell like so:

，为了填充数据，我从覆盖cellForRowAt方法开始:

and for filling it with data I've started with overriding cellForRowAt method:

    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCell(withIdentifier: "CurrencyCell", for: indexPath) as! CurrencyCell

    for (key, value) in currencies! {
        print("key is - \(key) and value is - \(value)")
    }

    // ?

    // cell.currencyLabel.text =
    // cell.askLabel.text =
    // cell.bidLabel.text =

    return cell
}

此处的词典打印输出:

key is - EUR and value is - Rate(ask: Optional("30.8500"), bid: Optional("30.1000"))
key is - USD and value is - Rate(ask: Optional("26.3000"), bid: Optional("26.0500"))
key is - RUB and value is - Rate(ask: Optional("0.4150"), bid: Optional("0.3750"))

如何执行此操作?预先感谢！

How to do this? Thanks in advance!

推荐答案

我使用了struct Rate来重现您当前的输出

I used a struct Rate to Reproduce your current Output

struct Rate {
    var ask : Float?
    var bid : Float?

    static var shared = Rate()

    mutating func initWithDictValues(_ currentRate : Rate) {
        self.ask = currentRate.ask
        self.bid = currentRate.bid
    }
}

货币数组

/// Array Declaration
var currencies = [String:Any]()

/// Add Values
currencies = ["EUR":Rate(ask: 30.8500, bid: 30.8500),"USD":Rate(ask: 26.3000, bid: 26.3000),"RUB":Rate(ask: 0.4150, bid: 0.4150)]

获取单独数组中的所有键，以便我们可以轻松地使单元出队

var keysArray = Array(currencies.keys)

TableView函数

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCell(withIdentifier: "CurrencyCell", for: indexPath) as! CurrencyCell

    /// Get CurrentKey
    let currentKey = keysArray[indexPath.row]
    let currentIndexKey : Rate = currencies[currentKey] as! Rate

    /// Assign Values
    cell.currencyLabel.text = currentKey
    cell.askLabel.text = currentIndexKey.ask ?? 0
    cell.bidLabel.text = currentIndexKey.bid ?? 0

    return cell
}

游乐场输出

希望这会有所帮助

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