Question

想要嵌入此代码：

[Foundation.Export("webView:decidePolicyForNavigationAction:decisionHandler:")]
    public async void DecidePolicy(WebKit.WKWebView webView, WebKit.WKNavigationAction navigationAction, Action<WebKit.WKNavigationActionPolicy> decisionHandler)
    {
        try
        {
            var url = navigationAction.Request.Url;

            // only apply to requests being made to your domain
            if (url.Host.ToLower().Contains("XXXXX"))
            {
                if (navigationAction.Request.Headers.ContainsKey((NSString)"Accept-Language"))
                {
                    var languageHeaderValue = (NSString)navigationAction.Request.Headers[(NSString)"Accept-Language"];

                    if (languageHeaderValue == Globalization.ActiveLocaleId)
                    {
                       decisionHandler.Invoke(WKNavigationActionPolicy.Allow);
                        return;
                    }
                    else
                    {
                        decisionHandler(WKNavigationActionPolicy.Cancel);
                        var updatedRequest = SetHeaders((NSMutableUrlRequest)navigationAction.Request);

                        // Temp fix for navigationAction.Request.Body always null on iOS < 14
                        // causing form not to submit correctly
                        updatedRequest = await FixNullPostBody(updatedRequest);

                        WebView.LoadRequest(updatedRequest);
                    }
                }
                else
                {
                    decisionHandler(WKNavigationActionPolicy.Cancel);

                    var updatedRequest = SetHeaders((NSMutableUrlRequest)navigationAction.Request);

                    // Temp fix for navigationAction.Request.Body always null on iOS < 14
                    // causing form not to submit correctly
                    updatedRequest = await FixNullPostBody(updatedRequest);

                    WebView.LoadRequest(updatedRequest);
                }
            }
            else
            {
                decisionHandler.Invoke(WKNavigationActionPolicy.Allow);
            }
        }
        catch (Exception ex)
        {
            Logger.LogException(ex);
            decisionHandler?.Invoke(WKNavigationActionPolicy.Allow);
        }
    }
}


    private async Task<NSMutableUrlRequest> FixNullPostBody(NSMutableUrlRequest urlRequest)
    {
        try
        {
            // if on iOS 14 and higher, don't do this
            //if (UIDevice.CurrentDevice.CheckSystemVersion(14, 0))
                //return urlRequest;

            // only resume on POST http methods
            if (urlRequest.HttpMethod.ToLowerSafe() != "post")
                return urlRequest;

            // if post body is already there, exit
            if(urlRequest.Body != null)
                return urlRequest;

            if (WebView == null)
                return urlRequest;

            // get body post by running javascript
            var body = await WebView.EvaluateJavaScriptAsync("$('form').serialize()");//.ConfigureAwait(true);

            if (body != null)
            {
                //urlRequest.Body = urlRequest.Body; // always null on iOS < 14
                var bodyString = body.ToString();

                if (!bodyString.IsNullOrEmpty())
                    urlRequest.Body = NSData.FromString(bodyString);
            }

        }
        //This method will throw a NSErrorException if the JavaScript is not evaluated successfully.
        catch (NSErrorException ex)
        {
            DialogHelper.ShowErrorAlert(Logger.HandleExceptionAndGetErrorMsg(ex));
        }
        catch (Exception ex)
        {
            DialogHelper.ShowErrorAlert(Logger.HandleExceptionAndGetErrorMsg(ex));
        }

        return urlRequest;
    }


private NSMutableUrlRequest SetHeaders(NSMutableUrlRequest urlRequest)
    {
        try
        {
            if (this.UsePOST)
            {
                urlRequest.HttpMethod = "POST";
                urlRequest.Body = postParameters.Encode(NSStringEncoding.UTF8, false);
            }

            var keys = new object[] { "Accept-Language" };
            var objects = new object[] { Globalization.ActiveLocaleId };

            var dictionnary = NSDictionary.FromObjectsAndKeys(objects, keys);

            if (urlRequest.Headers == null)
            {
                urlRequest.Headers = dictionnary;
            }
            else
            {
                NSMutableDictionary httpHeadersCopy = new NSMutableDictionary(urlRequest.Headers);

                httpHeadersCopy.Remove((NSString)"Accept-Language");
                httpHeadersCopy.Add((NSString)"Accept-Language", (NSString)Globalization.ActiveLocaleId);

                urlRequest.Headers = null;
                urlRequest.Headers = (NSDictionary)httpHeadersCopy;
            }
        }
        catch (Exception ex)
        {
            Logger.LogException(ex);
        }
        return urlRequest;
    }

尝试了所有我能找到的东西，例如：

@bot.command(pass_contex = True)
async def Dragning(ctx, num):
    try:
        arg = random.randint(1, int(num))
    except ValueError:
        return await ctx.channel.send("Endast hela nummer")
    else:
        return await ctx.channel.send(str(arg))

还有其他几种方法，有人可以给我一些指导吗？

Answer 1

您正在做的是ctx.send(embed=Embed(arg))。应该要做的是发送您之前创建的embed实例，因此对于您的情况ctx.send(embed=embed)。您应该将值添加到嵌入中，而不是使用该值创建新的嵌入（甚至无法正常工作）。

@bot.command()
async def Dragning(ctx, num):
    embed = discord.Embed(title="Dragning")
    try:
        arg = random.randint(1, int(num))
        embed.description = arg
    except ValueError:
        return await ctx.send("Endast hela nummer")
    else:
        return await ctx.send(embed=embed)

我未将其添加到说明中，因为您未提供字段标题或其他任何内容。您还可以将其添加为字段，页脚等。

有关API docs中嵌入的功能（字段，...）的更多信息。

此外，您可以只使用ctx.send()而不是ctx.channel.send()和pass_context kwarg no longer exists，因此应该从命令装饰器中删除它。现在会自动传递上下文。

嵌入命令Discord

1 个答案: