I need to make a mobile app of a game I made, when I launch the HTML the app works just fine in the browser but when I put it all in android studio it launches the app, but it doesn't have any of the images and the button doesn't work. In my research, it should work right now, but it doesn't. I tried changing the layout from linear to relative in the .xml file but that didn't work. I tried finding things wrong in the HTML but it all seems fine as it works in the browser. this is the Java code I have for the Webview. I think its the only thing that could be wrong along with the xml since its the only things that changed when going from browser to app.

package com.example.wizardgamefr;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.webkit.WebView;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        WebView webView = (WebView) findViewById (R.id.webView);
        webView.getSettings().setJavaScriptEnabled(true);
        webView.loadUrl ("file:///android_asset/main/index.html");

and here is the xml code

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <WebView
        android:id="@+id/webView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        tools:layout_editor_absoluteX="1dp"
        tools:layout_editor_absoluteY="1dp"
        android:layout_alignParentStart="true"
        android:layout_alignParentEnd="true"
        android:layout_alignParentTop="true">

    </WebView>


</RelativeLayout>

I dont know why the buttons dont work and why the images wont load. As I don't have any experience in this at all.