c# - Xamarin.Google.UserMessagingPlatform 指南？

Question

我正处于使用 Xamarin/C# 设置 Android 应用程序的最后阶段。我已经实现了 Google Admob，但 GDPR 规则规定我必须有隐私声明才能展示广告。 Google 的文档显示 Consent SDK 已弃用，我应该使用新的用户消息传递平台 https://developers.google.com/admob/ump/android/quick-start

我已经下载了 Nuget 包 Xamarin.Google.UserMessagingPlatform ( https://www.nuget.org/packages/Xamarin.Google.UserMessagingPlatform/1.0.0?_src=template ) 并导入了库，但我正在努力将 Google 的代码翻译到我的项目中，并且在线搜索后似乎没有任何地方有实时文档链接以及 C#/Xamarin 中的实现示例。包 URL 404 上的项目站点和源存储库通向通用 Xamarin 存储库，但我在其中找不到对 UMP 的引用。

具体来说，我不知道如何处理的一个说法是:

new ConsentInformation.OnConsentInfoUpdateSuccessListener() {
            @Override
            public void onConsentInfoUpdateSuccess() {
                // The consent information state was updated.
                // You are now ready to check if a form is available.
            }
        },
        new ConsentInformation.OnConsentInfoUpdateFailureListener() {
            @Override
            public void onConsentInfoUpdateFailure(FormError formError) {
                // Handle the error.
            }

有没有C#实现的例子？

Answer 1

在MainActivity.OnCreate中，调用base.OnCreate(bundle)后一段时间；插入此代码 fragment :

        App.LogMessage("DEBUG: MainActivity.OnCreate: Starting consent management flow, via UserMessagingPlatform.");
        try
        {
            ConsentRequestParameters requestParameters = new ConsentRequestParameters
                .Builder()
                .SetTagForUnderAgeOfConsent(false)
                .Build();

            IConsentInformation consentInformation = UserMessagingPlatform.GetConsentInformation(this);

            consentInformation.RequestConsentInfoUpdate(
                this,
                requestParameters,
                new GoogleUMPConsentUpdateSuccessListener(
                    () =>
                    {
                        // The consent information state was updated.
                        // You are now ready to check if a form is available.
                        if (consentInformation.IsConsentFormAvailable)
                        {
                            UserMessagingPlatform.LoadConsentForm(
                                this,
                                new GoogleUMPFormLoadSuccessListener((IConsentForm f)=> {
                                    this.googleUMPConsentForm = f;
                                    this.googleUMPConsentInformation = consentInformation;
                                    App.LogMessage("DEBUG: MainActivity.OnCreate: Consent management flow: LoadConsentForm has loaded a form, which will be shown if necessary, once the ViewModel is ready.");
                                    DisplayAdvertisingConsentFormIfNecessary();
                                }),
                                new GoogleUMPFormLoadFailureListener((FormError e)=> {
                                    // Handle the error.
                                    App.LogMessage("ERROR: MainActivity.OnCreate: Consent management flow: failed in LoadConsentForm with error " + e.Message);
                                }));
                        }
                        else
                        {
                            App.LogMessage("DEBUG: MainActivity.OnCreate: Consent management flow: RequestConsentInfoUpdate succeeded but no consent form was available.");
                        }
                    }),
                new GoogleUMPConsentUpdateFailureListener(
                    (FormError e) =>
                    {
                        // Handle the error.
                        App.LogMessage("ERROR: MainActivity.OnCreate: Consent management flow: failed in RequestConsentInfoUpdate with error " + e.Message);
                    })
                );
        }
        catch (Exception ex)
        {
            App.LogMessage("ERROR: MainActivity.OnCreate: Exception thrown during consent management flow: ", ex);
        }

然后，在 MainActivity 类的主体中，您还需要添加以下定义:

    private IConsentForm googleUMPConsentForm = null;
    private IConsentInformation googleUMPConsentInformation = null;
    public void DisplayAdvertisingConsentFormIfNecessary()
    {
        try
        {
            if (googleUMPConsentForm != null && googleUMPConsentInformation != null)
            {
                    /* ConsentStatus:
                        Unknown = 0,
                        NotRequired = 1,
                        Required = 2,
                        Obtained = 3
                    */
                if (googleUMPConsentInformation.ConsentStatus == 2)
                {
                    App.LogMessage("DEBUG: MainActivity.DisplayAdvertisingConsentFormIfNecessary: Consent form is being displayed.");
                    DisplayAdvertisingConsentForm();
                }
                else
                {
                    App.LogMessage("DEBUG: MainActivity.DisplayAdvertisingConsentFormIfNecessary: Consent form is not being displayed because consent status is "+ googleUMPConsentInformation.ConsentStatus.ToString());
                }
            }
            else
            {
                App.LogMessage("ERROR: MainActivity.DisplayAdvertisingConsentFormIfNecessary: consent form or consent information missing.");
            }
        }
        catch(Exception ex)
        {
            App.LogMessage("ERROR: MainActivity.DisplayAdvertisingConsentFormIfNecessary: Exception thrown: ", ex);
        }
    }

    public void DisplayAdvertisingConsentForm()
    {
        try
        {
            if (googleUMPConsentForm != null && googleUMPConsentInformation != null)
            {
                App.LogMessage("DEBUG: MainActivity.DisplayAdvertisingConsentForm: Consent form is being displayed.");

                googleUMPConsentForm.Show(this, new GoogleUMPConsentFormDismissedListener(
                        (FormError f) =>
                        {
                            if (googleUMPConsentInformation.ConsentStatus == 2) // required
                            {
                                App.LogMessage("ERROR: MainActivity.DisplayAdvertisingConsentForm: Consent was dismissed; showing it again because consent is still required.");
                                 DisplayAdvertisingConsentForm();
                            }
                        }));
            }
            else
            {
                App.LogMessage("ERROR: MainActivity.DisplayAdvertisingConsentForm: consent form or consent information missing.");
            }
        }
        catch (Exception ex)
        {
            App.LogMessage("ERROR: MainActivity.DisplayAdvertisingConsentForm: Exception thrown: ", ex);
        }
    }

    public class GoogleUMPConsentFormDismissedListener : Java.Lang.Object, IConsentFormOnConsentFormDismissedListener
    {
        public GoogleUMPConsentFormDismissedListener(Action<FormError> failureAction)
        {
            this.a = failureAction;
        }
        public void OnConsentFormDismissed(FormError f)
        {
            a(f);
        }

        private Action<FormError> a = null;
    }


    public class GoogleUMPConsentUpdateFailureListener : Java.Lang.Object, IConsentInformationOnConsentInfoUpdateFailureListener
    {
        public GoogleUMPConsentUpdateFailureListener(Action<FormError> failureAction)
        {
            this.a = failureAction;
        }
        public void OnConsentInfoUpdateFailure(FormError f)
        {
            a(f);
        }

        private Action<FormError> a = null;
    }

    public class GoogleUMPConsentUpdateSuccessListener : Java.Lang.Object, IConsentInformationOnConsentInfoUpdateSuccessListener
    {
        public GoogleUMPConsentUpdateSuccessListener(Action successAction)
        {
            this.a = successAction;
        }

        public void OnConsentInfoUpdateSuccess()
        {
            a();
        }

        private Action a = null;
    }

    public class GoogleUMPFormLoadFailureListener : Java.Lang.Object, UserMessagingPlatform.IOnConsentFormLoadFailureListener
    {
        public GoogleUMPFormLoadFailureListener(Action<FormError> failureAction)
        {
            this.a = failureAction;
        }
        public void OnConsentFormLoadFailure(FormError e)
        {
            a(e);
        }

        private Action<FormError> a = null;
    }

    public class GoogleUMPFormLoadSuccessListener : Java.Lang.Object, UserMessagingPlatform.IOnConsentFormLoadSuccessListener
    {
        public GoogleUMPFormLoadSuccessListener(Action<IConsentForm> successAction)
        {
            this.a = successAction;
        }
        public void OnConsentFormLoadSuccess(IConsentForm f)
        {
            a(f);
        }

        private Action<IConsentForm> a = null;
    }