如何从 nsdictionary 中获取选定值的键

Question

我正在使用 NSDictionary 从 json 获取数据，然后我将 NSDictionary 的值添加到 UITableView。当用户选择 table cell 它将发回 value.The 点是如何从 table cell in NSDictionary in Swift?

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，他告诉我answer.I现在用那个代码得到了这个

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

输出为

0_22

Answer 2

这段代码可以正常工作。

    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 中获取选定值的键

how to get key of selected value from nsdictionary

nsdictionary

uitableview

ios

swift