How to Convert Website into App Change Website to App Create WebView in Android Studio

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AndroidManifests.xml

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

    package="com.usmtip.webview">

    <uses-permission android:name="android.permission.INTERNET"/>

    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>

    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>

    <application

        android:icon="@mipmap/ic_launcher"

        android:label="@string/app_name"

        android:roundIcon="@mipmap/ic_launcher_round"

        android:supportsRtl="true"

        android:theme="@style/Theme.MyApplication">

        <activity android:name=".MainActivity">

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

    </application>

</manifest>

MainActivity.xml

<?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"

    android:orientation="vertical"

    tools:context=".MainActivity">

    <WebView

        android:id="@+id/webView"

        android:layout_width="match_parent"

        android:layout_height="match_parent">

    </WebView>

</RelativeLayout>

MainActivity.java

package com.usmtip.webview;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;

import android.view.KeyEvent;

import android.webkit.WebSettings;

import android.webkit.WebView;

import android.webkit.WebViewClient;

public class MainActivity extends AppCompatActivity {

    private WebView webview;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        LoadWeb();

    }

    public void LoadWeb() {

        webview = (WebView) findViewById(R.id.webView);

        WebSettings webSettings = webview.getSettings();

        webview.getSettings().setJavaScriptEnabled(true);

        webview.getSettings().setAppCacheEnabled(true);

        webview.getSettings().setBuiltInZoomControls(true);

        webview.setWebViewClient(new WebViewClient());

        webview.loadUrl("https://www.google.com/");

    }

    @Override

    public boolean onKeyDown(int keyCode, KeyEvent event) {

        if (keyCode == KeyEvent.KEYCODE_BACK) {

            if (webview.canGoBack()) {

                webview.goBack();

                return true;

            }

        }

        return super.onKeyDown(keyCode, event);

    }

}