Ios Swift 解码从 GCM 通知发送的 json 数据

Question

我正在接收 GCM Json 编码的数据作为 AnyObject，如下所示

[MsgKey: {"NamKey":"Bdy","MobKey":"9964120147","UidKey":"Uid31"}, collapse_key: do_not_collapse, from: 925652137353]

我想解码上面的内容并将其传递给本地通知屏幕

我在下面试过:

func application(appPsgVar: UIApplication,
                 didReceiveRemoteNotification userInfo: [NSObject : AnyObject])
{
    print("Notification: ",userInfo["MsgKey"]!)

    let MsgVar = userInfo["MsgKey"]

    var GotVar = MsgVar?.objectAtIndex(2)
|Or|
    var GotVar = MsgVar?.objectForKey("UidKey")
|Or|
    var GotVar = MsgVar?.valueForKey("UidKey")

和

    if let MsgVar = userInfo["MsgKey"] as? [String:AnyObject]
    {
        GetNfnFnc(MsgVar["NamKey"] as! String)
    }

和

    if let MsgVar = userInfo["MsgKey"] as? NSData
    {
        var JsnAryVar: AnyObject!
        do
        {
            JsnAryVar = try NSJSONSerialization.JSONObjectWithData(MsgVar, options: [])
            print(JsnAryVar)
        }
        catch
        {
            print("ErrVar")
        }

        GetNfnFnc(JsnAryVar["NamKey"] as! String)
    }
}

userInfo["MsgKey"] 给了我以下数据，但无法理解如何进一步解码

{"NamKey":"Bdy","MobKey":"9964120147","UidKey":"Uid31"}

Answer 1

实际问题是来自服务器的 Json 编码数据以字符串形式出现

方法 1:Eric D 建议并提供解决方案链接 Retrieving values from 2D array in JSON string

do
{
    if let MsgCodVar = MsgSrgVar.dataUsingEncoding(NSUTF8StringEncoding),
     let MsgJsnVar = try! NSJSONSerialization.JSONObjectWithData(MsgCodVar, options: []) as? [String:AnyObject]
    {
        print(MsgJsnVar)
    }
}

方法 2:我自己的艰难解决方法 :-(

创建自己的函数将字符串数据转换为数组[String:AnyObject]

func CnvJsnSrgTooAryFnc(JsnSrgPsgVar: String) -> [String:AnyObject]
{
    var JsnSrgVar = JsnSrgPsgVar
    JsnSrgVar = JsnSrgVar.stringByReplacingOccurrencesOfString("\"", withString: "")
    JsnSrgVar = JsnSrgVar.stringByReplacingOccurrencesOfString("{", withString: "")
    JsnSrgVar = JsnSrgVar.stringByReplacingOccurrencesOfString("}", withString: "")
    let SrgAryVar = JsnSrgVar.componentsSeparatedByString(",")

    var JsnAryVar = [String:AnyObject]()
    for SrgIdxVar in SrgAryVar
    {
        let SrgIdxAryVar = SrgIdxVar.componentsSeparatedByString(":")
        JsnAryVar[SrgIdxAryVar[0]] = SrgIdxAryVar[1]
    }
    return JsnAryVar
}

let MsgAryVar = CnvJsnSrgTooAryFnc(MsgSrgVar)

MsgAryVar["UidKey"]

得到输出:

print(MsgSrgVar) :
{"NamKey":"Bdy","MobKey":"9964120147","UidKey":"Uid99"}

print(MsgAryVar)
["NamKey": Bdy, "MobKey": 9964120147, "UidKey": Uid99]