类型“ Any”没有下标成员错误Json

时间:2018-09-03 16:40:18

标签: arrays json swift nsdictionary any

我收到此错误

  

“任意”类型没有下标成员

与“ dayZeroTemperatureMax,dayZeroTemperatureMin”等类似的行,我不知道如何解决。我在互联网上进行了搜索,但是他们的所有修复程序都无法解决我的问题。这就是我得到的:

struct Weekly {

    var dayZeroTemperatureMax: Int
    var dayZeroTemperatureMin: Int

    var dayOneTemperatureMax: Int
    var dayOneTemperatureMin: Int
    var dayOneTime: String?
    var dayOneIcon: UIImage

    init (weatherDictionary: NSDictionary) {

        let weeklyWeather = weatherDictionary["daily"] as! NSDictionary

        let weeklyForcast = weeklyWeather["data"] as! NSArray

        //DAY ZERO
        dayZeroTemperatureMax = weeklyForcast[0]["temperatureMax"] as! Int
        dayZeroTemperatureMin = weeklyForcast[0]["temperatureMin"] as! Int

        //DAY ONE
        dayOneTemperatureMax = weeklyForcast[1]["temperatureMax"] as! Int
        dayOneTemperatureMin = weeklyForcast[1]["temperatureMin"] as! Int
        let dayOneTimeIntValue = weeklyForcast[1]["sunriseTime"] as! Int
        dayOneTime = weeekDateStringFromUnixtime(dayOneTimeIntValue)
        let dayOneIconString = weeklyForcast[1]["icon"] as! String
        dayOneIcon = weatherIconFromString(dayOneIconString)

      }

}

1 个答案:

答案 0 :(得分:0)

Swift不知道weeklyForcast[0]是什么类型,因此您应该执行以下操作:

if let zeroWeeklyForecast = weeklyForcast[0] as? [String: Int] {
    dayOneTemperatureMax = zeroWeeklyForecast["temperatureMax"]
    dayOneTemperatureMin = zeroWeeklyForecast["temperatureMin"]
}

如果weeklyForcast[0][String: Any]而不是[String: Int],则您也必须从Any投射到Int

如评论中所述,NSDictionary不应再在Swift中使用,而应由[Type1: Type2]代替。更重要的是,如果您要从JSON解码数据,则应考虑使用JSONDecoderHere是一个很好的教程。