Registered the Application subclass in the AndroidManifest.

Author: ashryanbeats

user-auth-ui/app/src/main/AndroidManifest.xml

@@ -7,7 +7,8 @@
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
         android:supportsRtl="true"
-        android:theme="@style/AppTheme">
+        android:theme="@style/AppTheme"
+        android:name=".MainApplication">
         <activity
             android:name=".MainActivity"
             android:label="@string/app_name"