Authentication Xamarin.Auth更改；“认证”；标题

有人知道当Xamarin.Auth显示（facebook等）登录屏幕时，我是否可以本地化或只是更改标题“Authenticate”

谢谢

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好的，花了几个小时回答我自己的问题，只是为了发现OAuth2Authenticator类继承自具有读/写属性标题的Authenticator类

auth = new OAuth2Authenticator(
                        clientId: Constants.FacebookClientId,  
                        scope: "email",
                        authorizeUrl: new Uri("https://www.facebook.com/v2.9/dialog/oauth"), // These values do not need changing
                        redirectUrl: new Uri("http://www.facebook.com/connect/login_success.html")// These values do not need changing
                    );
auth.AllowCancel = true; //back button allowed 
auth.Title = "Facebook"; //pfffff :)