Question

我正在尝试按照这个appcoda GoogleMaps教程并转换为swift 2.我真的很擅长快速理解。

do {
   let dictionary = try NSJSONSerialization.JSONObjectWithData(geocodingResultsData!, options: NSJSONReadingOptions.MutableContainers) as? NSDictionary

   } catch let error as NSError {

      print("Error")
      completionHandler(status: "", success: false)

   }; else {
      // Get the response status.
      let status = dictionary["status"] as String

      if status == "OK" {
        let allResults = dictionary["results"] as Array<Dictionary<NSObject, AnyObject>>
        self.lookupAddressResults = allResults[0]

我在“else”之前收到错误，它首先推荐“;”因为连续的陈述，但后来它在同一个地方出现“预期表达”错误。我发誓我以前做过这个没有错误。我无法理解为什么。这是与一个糟糕的尝试，捕获，做什么有关？感谢任何见解，谢谢。

Answer 1

@pirateKyle

我认为你应该这样做

 do {
        let dictionary = try NSJSONSerialization.JSONObjectWithData(geocodingResultsData!, options: NSJSONReadingOptions.MutableContainers) as! Dictionary<NSObject, AnyObject>
            // Get the response status.
            let status = dictionary["status"] as! String

        if status == "OK" {
            let allResults = dictionary["results"] as! Array<Dictionary<NSObject, AnyObject>>
            self.lookupAddressResults = allResults[0]

            // Keep the most important values.
            self.fetchedFormattedAddress = self.lookupAddressResults["formatted_address"] as! String
            let geometry = self.lookupAddressResults["geometry"]as! Dictionary<NSObject, AnyObject>
            self.fetchedAddressLongitude = ((geometry["location"] as! Dictionary<NSObject, AnyObject>)["lng"] as! NSNumber).doubleValue
            self.fetchedAddressLatitude = ((geometry["location"] as! Dictionary<NSObject, AnyObject>)["lat"]as! NSNumber).doubleValue

            completionHandler(status: status, success: true)
        }
        else {
            completionHandler(status: status, success: false)
        }


    } catch let error as NSError {
        completionHandler(status: "", success: false)
    print(error)
    }

为什么连续不允许

1 个答案: