Xamarin.forms 对如何在我的应用程序上正确使用IdentityServer感到非常困惑

我可能无法正确理解如何使用Xamarin.Auth正确实现IdentityServer4

基本上，我使用Xamarin.Auth处理多个案例

登录OAuth2供应商（MS/Google/FB）

使用自实现的OAuth2登录（尚未使用）

说到案例1，在将移动应用程序的登录提交到Google/MS/FB后，我决定进一步做什么：转到应用程序的主页或注册用户，将电子邮件注册为用户名，将用户名（来自供应商的用户名）注册为密码

我已经用AsNetIdentity实现了IdentityServer4

据我所知，我需要实现混合身份验证，但这里的问题是，它的特点是需要使用WebView，在案例1中不再需要它。 所以基本上我认为我需要使用授权流，但尝试执行其中任何一项都失败了

https://localhost:44348/connect/authorize?
    client_id=XamClient&
    client_secret=secret&response_type=code+id_token&
    scope=openid&
    redirect_uri=https%3A%2F%2Flocalhost%3A44348%2Fxamarincallback&
    nonce=7a8ff1c107e345a8b055a8232ec15545&
    code_challenge=8Kk9RQ8NX6w3YzL0eU7AWQurWnikb9NS9bVwa5lxhhE&
    code_challenge_method=S256&state=d3a7b6a511da413395b2552fb194af2f

我这里的问题是，大多数示例都有一个MVC视图，该视图将此url作为重定向url获取，然后在客户端使用其用户名和密码提交帖子后，我将获取

授权代码

，

刷新令牌

和

标识

我真的不确定如何正确地提交身份验证在我的情况下，使用什么

我只能用
-含蓄的
-授权码-这是我的第一个场景中唯一合理的选项？
-混合模式-尝试了一整天来实现这一点，意识到这是不可能的

无论如何，在查看日志后，我看到突然可疑地重定向到帐户控制器（asp登录控制器）

通过分析来自Git的
标识服务器4
，此/authorize端点只接受GET，不接受用户/pw

编辑01:
我已经检查了这个资源，它把我和我的场景（1）混淆了


 {
        "name": "Microsoft.ApplicationInsights.Dev.Request",
        "time": "2017-09-12T11:26:56.5388249Z",
        "tags": {
            "ai.location.ip": "127.0.0.1",
            "ai.internal.nodeName": "EDWARD",
            "ai.operation.id": "152eb716-4ff8951dec6a1ed1",
            "ai.internal.sdkVersion": "aspnet5c:2.1.1",
            "ai.application.ver": "1.0.0.0",
            "ai.operation.name": "GET /connect/authorize",
            "ai.cloud.roleInstance": "EDWARD"
        },
        "data": {
            "baseType": "RequestData",
            "baseData": {
                "ver": 2,
                "id": "|152eb716-4ff8951dec6a1ed1.",
                "name": "GET /connect/authorize",
                "duration": "00:00:00.1530713",
                "success": true,
                "responseCode": "302",
                "url": "https://localhost:44348/connect/authorize?client_id=AnonymousCheckerClient&client_secret=secret&response_type=code+id_token&scope=openid&redirect_uri=https:%2F%2Flocalhost:44348%2Fxamarincallback&nonce=af1427d39dc2463697047a834169fdcf&code_challenge=UUi0a9cfhrcGvzddV9eh0Lc8cdr5WE-ZwSzwbY7ReNQ&code_challenge_method=S256&state=aafde38b65044c35b83a1fcb8771de2e",
                "properties": {
                    "httpMethod": "GET",
                    "AspNetCoreEnvironment": "Development",
                    "DeveloperMode": "true"
                }
            }
        }
    },
    {
        "name": "Microsoft.ApplicationInsights.Dev.Message",
        "time": "2017-09-12T11:26:56.6993438Z",
        "tags": {
            "ai.location.ip": "127.0.0.1",
            "ai.operation.parentId": "|152eb717-4ff8951dec6a1ed1.",
            "ai.internal.nodeName": "EDWARD",
            "ai.operation.id": "152eb717-4ff8951dec6a1ed1",
            "ai.internal.sdkVersion": "aspnet5c:2.1.1",
            "ai.application.ver": "1.0.0.0",
            "ai.operation.name": "GET /account/login",
            "ai.cloud.roleInstance": "EDWARD"
        },
        "data": {
            "baseType": "MessageData",
            "baseData": {
                "ver": 2,
                "message": "Request starting HTTP/1.1 GET http://localhost:44348/account/login?returnUrl=%2Fconnect%2Fauthorize%2Fcallback%3Fclient_id%3DAnonymousCheckerClient%26client_secret%3Dsecret%26response_type%3Dcode%2520id_token%26scope%3Dopenid%26redirect_uri%3Dhttps%253A%252F%252Flocalhost%253A44348%252Fxamarincallback%26nonce%3Daf1427d39dc2463697047a834169fdcf%26code_challenge%3DUUi0a9cfhrcGvzddV9eh0Lc8cdr5WE-ZwSzwbY7ReNQ%26code_challenge_method%3DS256%26state%3Daafde38b65044c35b83a1fcb8771de2e",
                "severityLevel": "Information",
                "properties": {
                    "AspNetCoreEnvironment": "Development",
                    "Protocol": "HTTP/1.1",
                    "Host": "localhost:44348",
                    "QueryString": "?returnUrl=%2Fconnect%2Fauthorize%2Fcallback%3Fclient_id%3DAnonymousCheckerClient%26client_secret%3Dsecret%26response_type%3Dcode%2520id_token%26scope%3Dopenid%26redirect_uri%3Dhttps%253A%252F%252Flocalhost%253A44348%252Fxamarincallback%26nonce%3Daf1427d39dc2463697047a834169fdcf%26code_challenge%3DUUi0a9cfhrcGvzddV9eh0Lc8cdr5WE-ZwSzwbY7ReNQ%26code_challenge_method%3DS256%26state%3Daafde38b65044c35b83a1fcb8771de2e",
                    "Scheme": "http",
                    "Path": "/account/login",
                    "DeveloperMode": "true",
                    "CategoryName": "Microsoft.AspNetCore.Hosting.Internal.WebHost",
                    "Method": "GET"
                }
            }
        }
    }