求助 swift js 调原生，异步有传参和回调，点击报错[__NSCFString count]

[wenjuan5]

*shareText - 分享到第三方app，调起分享弹窗。
输入参数：
{
shareText: "分享的文案内容" ,
shareUrl: "分享的url",
}

 返回值
 {
     "code":"0:成功，-1:失败",
     "msg":"msg"
 }

typealias JSCallback = (String, Bool)->Void
var feedbankHandler : JSCallback?
@objc func shareText( _ args:Dictionary<String, Any>){
let dic = [
"shareText": "分享的文案内容" ,
"shareUrl": "分享的url",
]

   feedbankHandler!(convertDictionaryToString(dict: dic),true)
    //convertDictionaryToString字典转json字符串
}

这种写法一直报错 shareText is not invoked ,since there is not a implementation for it

[wenjuan5]

知道为何了，必须是
@objc func shareText( _ arg:String,completedHandler:JSCallback){
let dic = ["shareText": "112","shareUrl": "https://www.baidu.com"]

   completedHandler(convertDictionaryToString(dict: dic),true)

}

arg的参数就是string，不能改为其他的