WebView

<WebView
    android:id="@+id/webView"
    android:layout_width="0dp"
    android:layout_height="0dp"
    android:layout_marginStart="1dp"
    android:layout_marginTop="1dp"
    android:layout_marginEnd="1dp"
    android:layout_marginBottom="191dp"
    app:layout_constraintBottom_toTopOf="@+id/button"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="parent" />


import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.view.View
import android.webkit.WebView

class MainActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        val wv=findViewById<WebView>(R.id.webView)
        wv.loadUrl("http://www.google.com")
    }

}

в AndroidManifest.xml трябва да добавите тази дирецтива
<uses-permission android:name="android.permission.INTERNET"/>