feat(auth): Adds improved HostedUI functionality (#739)

Author: TrekSoft

aws-auth-cognito/src/main/java/com/amplifyframework/auth/cognito/AWSCognitoAuthPlugin.java

@@ -73,6 +73,7 @@
 import com.amazonaws.mobile.client.results.Tokens;
 import com.amazonaws.mobile.client.results.UserCodeDeliveryDetails;
 import com.amazonaws.mobile.config.AWSConfiguration;
+import com.amazonaws.mobileconnectors.cognitoauth.AuthClient;
 import com.amazonaws.mobileconnectors.cognitoidentityprovider.util.CognitoJWTParser;
 import com.amazonaws.services.cognitoidentity.model.NotAuthorizedException;
 import org.json.JSONException;
@@ -90,6 +91,12 @@
  * A Cognito implementation of the Auth Plugin.
  */
 public final class AWSCognitoAuthPlugin extends AuthPlugin<AWSMobileClient> {
+    /**
+     * The code which the web UI activity is launched under and is needed to listen to the result.
+     * See the documentation for more information: https://docs.amplify.aws/lib/auth/signin_web_ui/q/platform/android
+     */
+    public static final int WEB_UI_SIGN_IN_ACTIVITY_CODE = AuthClient.CUSTOM_TABS_ACTIVITY_CODE;
+
     private static final String AWS_COGNITO_AUTH_PLUGIN_KEY = "awsCognitoAuthPlugin";
     private static final long SECONDS_BEFORE_TIMEOUT = 10;
     private static final String COGNITO_USER_ID_ATTRIBUTE = "sub";

build.gradle

@@ -51,7 +51,7 @@ ext {
     minSdkVersion = 16
     targetSdkVersion = 30
 
-    awsSdkVersion = '2.17.1'
+    awsSdkVersion = '2.18.0'
     dependency = [
         android: [
             desugartools: 'com.android.tools:desugar_jdk_libs:1.0.9',