Hello there,
As per your requirement, I can create WebView. The WebView class is an extension of Android's View class that allows you to display web pages as a part of your activity layout. Recently I have done this for one of a mobile app where admin backend was in a website, so I created a WebView using APK file, install on my mobile and able to access website backend from mobile, similar to apps.
Please share your details so that I can check.
Regards,
Chandan