Question

我正在使用NSDictionary从json获取数据，然后我将NSDictionary的值添加到UITableView。当用户被选中其中一个表格单元格时，它会发回值。关键是如何从Swift中NSDictionary的表格单元中获取所选值的键？

import UIKit

class ViewController: UIViewController {

var myFruits = ["0_22":"Sunkist","34_22":"Pine Apple","45_22":"Grape","1_123":"Apple"]

override func viewDidLoad() {
    super.viewDidLoad()

    // If my selected key is "Sunkist, what do i need to to get its value (0_22)"
    // Any Code Help?
}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}

}

Answer 1

感谢@Martin R，他给了我答案。我现在用这个代码获得了这个

let keys = (myFruits as NSDictionary).allKeysForObject("Sunkist")
println(String(keys[0] as! NSString))

输出

0_22

Answer 2

此代码可以正常使用。

    var myFruits = ["0_22":"Sunkist","34_22":"Pine Apple","45_22":"Grape","1_123":"Apple"]

    var dic:NSDictionary = NSDictionary(dictionary:myFruits)
    println(dic.allKeysForObject("Sunkist"))

如何从nsdictionary获取所选值的键

2 个答案: