Dropbox Xamarin OAuth Flow Question - Retrieving the Access Token

Thanks for the response.

In light of the Web View news, I'm going to opt for only using the .NET SDK after all. It's true that I had been using parts of both SDKs before. It's frustrating because in the time between my posts I had implemented a WebView soution that was partially working. Oh well, so much for that.

Back to the issue then: I'm using the .NET approach to the OAuth flow. I use the android browser to navigate to the authorize URL. Then the user would sign in if needed and hit Allow. My newest issue then becomes: I get how the .NET SDK example uses BrowserNavigating to capture the event and can then parse the access token from the URI, but how would I do that for android? Is there a way to attach a listener to the browser intent? This is the immediate obstacle I'm facing at present.

Here's some revised code:

        private void HandleDropboxOperation()
        {
            waitingOnDropboxUpload = true;
            taskCode = AuthActivity.RandomString(16);
            Toast.MakeText(this, "Uploading...", ToastLength.Short).Show();

            //see if there is an existing user access token stored
            sp = GetSharedPreferences(SharedPrefsName, FileCreationMode.Private);
            AccessTokenValue = sp.GetString(AccessTokenKey, string.Empty);
            
            if (AccessTokenValue.Equals(string.Empty))
            {
                this.OAth2State = Guid.NewGuid().ToString("N");
                var authorizeUri = DropboxOAuth2Helper.GetAuthorizeUri(OAuthResponseType.Token, DropboxAppKey, new Uri(RedirectUri), state: Guid.NewGuid().ToString("N"));
                //no browser object available - use intent instead
                Android.Net.Uri.Builder b = new Android.Net.Uri.Builder();
                b.AppendPath(authorizeUri.ToString());
                Intent browserIntent = new Intent(Intent.ActionView, b.Build());
                StartActivityForResult(Intent.CreateChooser(browserIntent, "Open With"), 1);

                //below is from the .NET SDK code - how to implement in Android?
                //OAuth2Response result = DropboxOAuth2Helper.ParseTokenFragment(e.Uri);
                //proceed with upload after token is obtained
            }
            else
            {
                InitiateUpload();
            }
        }