webview class

activity_webview.xml

<?xml version="1.0" encoding="utf-8"?>
<WebView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/webView"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

</WebView>

WebViewActivity.kt

class WebViewActivity : Activity() {

    @SuppressLint("SetJavaScriptEnabled")
    public override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_webview)

        val webView = findViewById<WebView>(R.id.webView)
        webView.settings.javaScriptEnabled = true
        webView.loadUrl(intent.getStringExtra("url"))
    }
}