웹뷰는 안드로이드 프레임웍에 내장된 웹 브라우져 컴포넌트로 뷰(View)형태
첨부는 간단한 웹브라우저 입니다

AndroidManifest.xml 파일에서
<uses-permission android:name="android.permission.INTERNET" />  추가
 <application> 부분에 android:usesCleartextTraffic="true" 로 설정

------------ activity_main.xml  -----
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/webView" />

</LinearLayout>


 -- AndroidManifest.xml 설정 인터넷 퍼미션 추가
    <uses-permission android:name="android.permission.INTERNET" />
    <application   
              android:usesCleartextTraffic="true"

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                                MainActivity.java
--------------------------------------------------------------------------------------------------
public class MainActivity extends AppCompatActivity {
    private WebView webView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        webView = (WebView)findViewById(R.id.webView);
        webView.loadUrl("http://www.embeddedkorea.com");
    }
}