Question

我已完成将我的应用程序迁移到swift3，但此部分不断产生导致问题。

<SCRIPT LANGUAGE="JavaScript">
function concatenate()
{
var Resultfieldname = "CheckboxChoices";
var firstVirtual = 1;
var lastVirtual = 3;
var ResultString = "";
var virtualFieldName = "";

for (i=firstVirtual ;i<=lastVirtual; i++)
{
virtualFieldName = "cbParamVirtual"+i;
if (document.getElementById(virtualFieldName).checked) ResultString = ResultString + "," + document.getElementById(virtualFieldName).value;
}
Resultfieldname = "EditRecord"+Resultfieldname;
if (ResultString.length>0) ResultString = ResultString.substr(1);
document.getElementById(Resultfieldname ).value = ResultString;
}
document.getElementById("caspioform").onsubmit=concatenate;
</SCRIPT>

重要控制台部件

- [_ SwiftValue unsignedIntegerValue]：无法识别的选择器发送到实例0x608000243d50 以NSException类型的未捕获异常终止（lldb）

override func viewWillAppear(_ animated: Bool)
{
    super.viewWillAppear(animated)
    self.navigationController?.setNavigationBarHidden(false, animated: animated)
    self.navigationItem.title = artworkTitle


    let title = "<center><span style=\"font-size: 17px;font-weight:lighter;font-family:Avenir-Book;\">" + artworkCaption + "</span></center>"
    artworkImageView.image = UIImage(named: artworkImagePath)

    artworkCaptionView.attributedText = title.html2AttStr
}

控制台

extension String
{
    var html2AttStr:NSAttributedString
    {
        let contents: NSMutableAttributedString?



    do {
        let attrTextStyle = NSMutableParagraphStyle()
        attrTextStyle.alignment = NSTextAlignment.center
        contents = try NSMutableAttributedString(data: data(using: String.Encoding.utf8)!, options:[NSDocumentTypeDocumentAttribute:NSHTMLTextDocumentType, NSCharacterEncodingDocumentAttribute: String.Encoding.utf8], documentAttributes: nil)
    } catch _ {
        contents = nil
    }

libc ++ abi.dylib：以NSException类型的未捕获异常终止

Answer 1

我记得reading on Apple's Swift blog如果你得到无法识别的选择器错误，这意味着Swift结构的自动包装会导致问题。最有可能的是它包裹String.Encoding而不是将其转换为NSNumber（NSMutableAttributedString背后的Objective-C代码所期望的那样）。

尝试将NSCharacterEncodingDocumentAttribute: String.Encoding.utf8替换为NSCharacterEncodingDocumentAttribute: String.Encoding.utf8.rawValue

- [_ SwiftValue unsignedIntegerValue]：无法识别的选择器发送到实例0x608000243d50（lldb）

1 个答案: