A new sample is now available on our repo for Android developers. The sample demonstrates integration with Auth0 for authentication and uses the standard techinque of delegating the authentication process to an embeded web view (extending the WebViewClient class).

All interactions are encapuslated in an Activity that you can call like in this example below:

Button login = (Button) findViewById(R.id.login);
login.setOnClickListener(new View.OnClickListener() {
    public void onClick(View v) {
        Intent authActivity = new Intent(MainActivity.this,

        AuthenticationActivitySetup setup;
        setup = new AuthenticationActivitySetup(Tenant, ClientID, Callback, Connection);

        authActivity.putExtra(AuthenticationActivity.AUTHENTICATION_SETUP, setup);

        startActivityForResult(authActivity, AuthenticationActivity.AUTH_REQUEST_COMPLETE);

The result is returned using the standard method of overriding the onActivityResult method:

protected void onActivityResult(int requestCode, int resultCode, Intent authActivityResult) {
    super.onActivityResult(requestCode, resultCode, authActivityResult);

        case AuthenticationActivity.AUTH_REQUEST_COMPLETE:
                AuthenticationActivityResult result;
                result = (AuthenticationActivityResult) authActivityResult.getSerializableExtra(AuthenticationActivity.AUTHENTICATION_RESULT);

                ((TextView) findViewById(R.id.access_token)).setText(result.accessToken);
                ((TextView) findViewById(R.id.jwt)).setText(result.JsonWebToken);

The AuthenticationActivityResult class is just a container for the two tokens you can use to call APIs:

public class AuthenticationActivityResult implements Serializable {
    public String accessToken;
    public String JsonWebToken;

If your app in Auth0 is created as Windows Azure Mobile Services:

Then the Json Web Token will be compatible with what Mobile Services expects. See this previous post for more details.

An end to end tutorial is available here.

We are working on a similar sample using Xamarin. Stay tuned!

Try Auth0 yourself!