javascript - 如何从服务器端 JavaScript 获取值并将它们存储在 Swift 的 plist 中？

Question

在 Android 中我可以使用这种方法实现它。谁能告诉我如何在 iOS 中使用 UIWebView 或 WKWebView 实现此目的？

@JavascriptInterface
    public boolean RememberMe(String UserData) {
        String str = UserData.replace("\\", "");
        str = str.substring(1, str.length() - 1);

        try {
            clsDBHelper DB = new clsDBHelper(MainActivity.this);
            JSONArray StoreData = DB.GetQueryNew("Select * from UserInfo", null);
            if (StoreData == null) {
                JSONArray Obj = new JSONArray(str);
                Integer TransID = Obj.getJSONObject(0).getInt("TransID");
                Integer OPID = Obj.getJSONObject(0).getInt("OPID");
                Integer ProviderID = Obj.getJSONObject(0).getInt("ProviderID");
                Integer CustomerID = Obj.getJSONObject(0).getInt("CustomerID");
                Integer CompID = Obj.getJSONObject(0).getInt("CompID");
                String UserID = Obj.getJSONObject(0).getString("UserID");
                String Password = Obj.getJSONObject(0).getString("Password");
                String RegMoblileNo = Obj.getJSONObject(0).getString("RegMoblileNo");
                String RegEmialID = Obj.getJSONObject(0).getString("RegEmialID");
                Integer Verifyflag = (Obj.getJSONObject(0).getBoolean("Verifyflag") == true ? 1 : 0);
                Integer IsActive = (Obj.getJSONObject(0).getBoolean("IsActive") == true ? 1 : 0);
                String OTP = Obj.getJSONObject(0).getString("OTP");
                String OTPTimeStamp = Obj.getJSONObject(0).getString("OTPTimeStamp");
                String OperatorID = Obj.getJSONObject(0).getString("OperatorID");
                DB.ExeNonScalerQuery("INSERT INTO UserInfo(TransID,OPID,ProviderID,CustomerID,CompID,UserID,Password,RegMoblileNo,RegEmialID,Verifyflag,IsActive,OTP,OTPTimeStamp,OperatorID)values("
                        + TransID + "," + OPID + "," + ProviderID + "," + CustomerID + "," + CompID + ",'" + UserID + "','" + Password + "','" + RegMoblileNo + "','" + RegEmialID + "'," + Verifyflag + "," + IsActive + ",'" + OTP + "','" + OTPTimeStamp + "','" + OperatorID + "')");
            }
            DB.CloseDB();
        } catch (JSONException e) {
            e.printStackTrace();
            clsDBHelper DB = new clsDBHelper(MainActivity.this);
            DB.GetQueryNew("Delete  from UserInfo", null);
            DB.CloseDB();
        }
        return true;
    }

当我登录应用程序时，JavaScript 中的 RememberMe 函数向我发送了一个字符串，我需要将其保存在 plist 中。

Answer 1

在 iOS 上，您通常使用 WKScriptMessageHandler 处理此问题: https://developer.apple.com/documentation/webkit/wkscriptmessagehandler?preferredLanguage=occ

本质上，你使用WKWebView，然后在JavaScript中调用这个方法:

window.webkit.messageHandlers.notification.postMessage( "message" );

然后在您的应用程序代码中，实现一个 WKScriptMessageHandler，您将其挂接到您的 Web View 中，并使用它来接收消息:

func userContentController( 
    userContentController: WKUserContentController, 
    didReceiveScriptMessage message: WKScriptMessage) {
    // do stuff
}

您可以在 NSHipster 上详细了解它: http://nshipster.com/wkwebkit/