Authenticate with OneDrive SDK in Xamarin Android App -

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i use onedrive sdk in cross plattform app. on windows authentication works via onedriveclientextensions.getclientusingwebauthenticationbroker.

now i'm trying login on android. tried this:

onedriveclient = onedriveclient.getmicrosoftaccountclient(                     appid: msa_client_id,                     returnurl: return_url,                     scopes: scopes,                     clientsecret: msa_client_secret);                 await onedriveclient.authenticateasync();

but error no valid token received. have implement own authenticationprovider inhereting webauthenticationbrokerauthenticationprovider shows browser oauth? or way go here?

i solved using xamarin auth component. heres code calls webview login:

        private const string return_url = @"https://login.live.com/oauth20_desktop.srf";  private void showwebview()     {         var auth = new oauth2authenticator(                 clientid: msa_client_id,                 scope: string.join(",", scopes),                 authorizeurl: new uri(getauthorizeurl()),                 redirecturl: new uri(return_url));          auth.completed += (sender, eventargs) =>         {             if (eventargs.isauthenticated)             {                 //do             }         };          var intent = auth.getui(application.context);         intent.setflags(activityflags.newtask);          application.context.startactivity(intent);     }      private string getauthorizeurl()     {         var requesturistringbuilder = new stringbuilder();         requesturistringbuilder.append("https://login.live.com/oauth20_authorize.srf");         requesturistringbuilder.appendformat("?{0}={1}", constants.authentication.redirecturikeyname, return_url);         requesturistringbuilder.appendformat("&{0}={1}", constants.authentication.clientidkeyname, msa_client_id);         requesturistringbuilder.appendformat("&{0}={1}", constants.authentication.scopekeyname,             string.join("%20", scopes));         requesturistringbuilder.appendformat("&{0}={1}", constants.authentication.responsetypekeyname,             constants.authentication.tokenresponsetypevaluename);          return requesturistringbuilder.tostring();     }

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