core-android/src/main/java/com/uber/sdk/android/core/auth/LoginManager.java
@Deprecated
    public void loginForImplicitGrant(@NonNull Activity activity) {

        if (!legacyUriRedirectHandler.checkValidState(activity, this)) {
            return;
        }

        Intent intent = LoginActivity.newIntent(activity, sessionConfiguration,
                ResponseType.TOKEN, legacyUriRedirectHandler.isLegacyMode());
        activity.startActivityForResult(intent, requestCode);
    }
@Deprecated
    public void loginForImplicitGrant(@NonNull Activity activity) {

        if (!legacyUriRedirectHandler.checkValidState(activity, this)) {
            return;
        }

        Intent intent = LoginActivity.newIntent(activity, sessionConfiguration,
                ResponseType.TOKEN, legacyUriRedirectHandler.isLegacyMode());
        activity.startActivityForResult(intent, requestCode);
    }
Login using Implicit Grant (Webview)

@param activity to start Activity on.