그림으로 쉽게 설명하는 안드로이드 프로그래밍(개정6판) 연습문제 14장

정답이 아닐 수 있습니다. 오류가 있으면 알려주세요ㅎ

 

1. 2번 ConnectivityManager

 

2. 2번 HttpURLConnection

 

3. 4번 WebView

 

4.

activity_main.xml

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

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">

        <Button
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_margin="5dp"
            android:layout_weight="1"
            android:backgroundTint="#BBBBBB"
            android:onClick="openNaver"
            android:text="네이버"
            android:textColor="@color/black"
            android:textSize="16dp" />

        <Button
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="5dp"
            android:layout_weight="1"
            android:backgroundTint="#BBBBBB"
            android:onClick="openDaum"
            android:text="다음"
            android:textColor="@color/black"
            android:textSize="16dp" />

        <Button
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_margin="5dp"
            android:layout_weight="1"
            android:backgroundTint="#BBBBBB"
            android:onClick="openMSN"
            android:text="MSN"
            android:textColor="@color/black"
            android:textSize="16dp" />
    </LinearLayout>

    <WebView
        android:id="@+id/webview"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />
    
</LinearLayout>

MainActivity.java

package kr.co.company.ch14_1;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.view.View;
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);
        webView = findViewById(R.id.webview);
        webView.setWebViewClient(new MyBrowser());
    }

    public void openNaver(View v) {
        String url = "https://m.naver.com";
        webView.getSettings().setLoadsImagesAutomatically(true);
        webView.getSettings().setJavaScriptEnabled(true);
        webView.setScrollBarStyle(View.SCROLLBARS_INSIDE_OVERLAY);
        webView.loadUrl(url);
    }

    public void openDaum(View v) {
        String url = "https://www.daum.net/";
        webView.getSettings().setLoadsImagesAutomatically(true);
        webView.getSettings().setJavaScriptEnabled(true);
        webView.setScrollBarStyle(View.SCROLLBARS_INSIDE_OVERLAY);
        webView.loadUrl(url);
    }

    public void openMSN(View v) {
        String url = "https://www.msn.com/ko-kr";
        webView.getSettings().setLoadsImagesAutomatically(true);
        webView.getSettings().setJavaScriptEnabled(true);
        webView.setScrollBarStyle(View.SCROLLBARS_INSIDE_OVERLAY);
        webView.loadUrl(url);
    }

    private class MyBrowser extends WebViewClient {
        @SuppressWarnings("deprecation")
        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            view.loadUrl(url);
            return true;
        }
    }
}

결과

 

5. 예제실행 불가ㅠ