Question

我对Swift很新，而不是常规的编码器，所以道歉，我很遗憾没有明显的东西！

我有一个NSXMLParser类在尝试将结果项添加到数组时给我一个EXC_BAD_ACCESS错误。

我相信（使用Xcode调试器）我有一个有效的安全（我的结果类）实例。

我的结果数组是空的，当我收到错误时，我正试图追加第一项。

课程如下：

class YahooXMLParser: NSXMLParser, NSXMLParserDelegate{

    var results: [Security] = []
    var parser: NSXMLParser = NSXMLParser()

    var xSecurityTicker: String = String()
    var xPurchasePrice: String = String()
    var xLatestPrice: String = String()
    var xStopLossPrice: String = String()
    var xChange: String = String()
    var xProfitPercent: String = String()
    var eName: String = String()

    func parseYahoo(url: NSURL) ->[Security]{
        parser = NSXMLParser(contentsOfURL: url)!
        parser.delegate = self
        parser.parse()
        return results
    }

    // NSXMLPArser Delegate functions

    func parser(parser: NSXMLParser, didStartElement elementName: String, namespaceURI: String?, qualifiedName qName: String?, attributes attributeDict: [NSObject : AnyObject]) {
        eName = elementName
        if elementName == "col0" {
            xSecurityTicker = String()
        }
        if elementName == "col1" {
            xLatestPrice = String()
        }
        if elementName == "col4" {
            xChange = String()
        }
    }

    func parser(parser: NSXMLParser, foundCharacters string: String?) {
        let data = string!.stringByTrimmingCharactersInSet(NSCharacterSet.whitespaceAndNewlineCharacterSet())
        if (!data.isEmpty) {
            if eName == "col0" {
                xSecurityTicker += data
            } else if eName == "col1" {
                xLatestPrice += data
            } else if eName == "col4" {
                xChange += data
            }
        }
    }

    func parser(parser: NSXMLParser, didEndElement elementName: String, namespaceURI: String?, qualifiedName qName: String?) {
        if elementName == "row" {
            let newSecurity = Security(ticker: xSecurityTicker,
                latest: NSString(string: xLatestPrice).floatValue,
                change: NSString(string: xChange).floatValue)

            results.append(newSecurity)
        }

    }

}

我的新安全值是：

newSecurity XMLTest.Security 0x00007f863b7368d0 0x00007f863b7368d0

securityName字符串“”

securityTicker字符串“HSX.L”

purchasePrice Float 0

latestPrice Float 861

stopLossPrice Float 0

profitPercent Float 0

更改Float 29

如果没有明显错误，我还应该寻找其他什么来找到错误？

感谢。

NSXMLParser：EXC_BAD_ACCESS错误

0 个答案: