Upgrade to lastest android sdk

[Gilberto-Pavanelli-Jr]

I am trying to upgrade to lastest android sdk.

I am facing some deprecated functions and get this exception.

Java.Lang.NoSuchMethodException Message=getToken []

Very clear, but i am stucked in how to get token

 public void OnSuccess(Java.Lang.Object result)
        {
            DeviceInstallationService.Token = result.Class.GetMethod("getToken").Invoke(result).ToString();
        }

[jonathan-caddy]

I needed to add the following to the OnCreate method

if (DeviceInstallationService.NotificationsSupported)
{
  FirebaseInstallations.GetInstance(Firebase.FirebaseApp.Instance).GetId().AddOnSuccessListener(this);
}

Then ensure the MainActivity class implemented IOnSuccessListener

public class MainActivity : global::Xamarin.Forms.Platform.Android.FormsAppCompatActivity, IOnSuccessListener

Then adjust the listener method as it looks like it now just returns the token string

public void OnSuccess(Java.Lang.Object result)
{
  DeviceInstallationService.Token = result.ToString();
}

[kiamajuliet]

Error:
Default FirebaseApp is not initialized in this process. Make sure to call FirebaseApp.initializeApp(Context) first

Getting this error when using the above solution. Tried the below two ways to initialise it but no luck

• FirebaseApp.InitializeApp(Application.Context)
• FirebaseApp.InitializeApp(this);

Please advice

[Leonsito]

Hi,

I managed to update this part to the new Firebase, following @jonathan-caddy solution.

In the OnCreate method in MainActivity.cs it should be:

if (DeviceInstallationService.NotificationsSupported)
{
     FirebaseMessaging.Instance.GetToken().AddOnSuccessListener(this);
}

This way you will get the token that is the FCM PNS Handle, which we need to register to Azure Notification Hub.

[robintschroeder]

I am experiencing the same problem @kiamajuliet describes. Any resolution for this?

[Rob97]

@robintschroeder I wrote out my complete solution to the bugs I faced while using the documentation here:

https://github.com/MicrosoftDocs/azure-dev-docs/issues/929

Let me know if it helps.