웹 브라우저

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">

<LinearLayout

android:id="@+id/linearLayout1"

android:layout_width="match_parent"

android:layout_height="wrap_content" >

<EditText

android:id="@+id/edtUrl"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_weight="1"

android:hint="Enter URL."

android:singleLine="true" />

<Button

android:id="@+id/btnGo"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="이동" />

<Button

android:id="@+id/btnBack"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="이전" />

</LinearLayout>

<WebView

android:id="@+id/webView1"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:clickable="true" />

</LinearLayout>

웹 브라우저 - 메니페스트(프로젝트 환경 구성)

<user-permission android:name=“android.permission.INTERNET” /> # https 접근 가능

android:usesCleartextTraffic=“true” # http도 접근 가능

app/manifests/AndroidManifest.xml

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

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

package="com.example.myapplication">

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

<application

android:allowBackup="true"

android:icon="@mipmap/ic_launcher"

android:label="WEB BROWSER"

android:roundIcon="@mipmap/ic_launcher_round"

android:logo="@drawable/web"

android:usesCleartextTraffic="true"

android:supportsRtl="true"

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

<intent-filter>

</intent-filter>

</activity>

</application>

</manifest>

MainActivity.java

package com.example.myapplication;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;

import android.view.View;

import android.webkit.WebSettings;

import android.webkit.WebView;

import android.webkit.WebViewClient;

import android.widget.Button;

import android.widget.EditText;

public class MainActivity extends AppCompatActivity {

EditText edtUrl;

Button btnGo, btnBack;

WebView web;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

getSupportActionBar().setDisplayHomeAsUpEnabled(true);

getSupportActionBar().setIcon(R.drawable.web);

edtUrl = (EditText) findViewById(R.id.edtUrl);

btnGo = (Button) findViewById(R.id.btnGo);

btnBack = (Button) findViewById(R.id.btnBack);

web = (WebView) findViewById(R.id.webView1);

web.setWebViewClient(new MyWebViewClient());

WebSettings webSet = web.getSettings();

webSet.setBuiltInZoomControls(true);

webSet.setJavaScriptEnabled(true);

btnGo.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View view) {

web.loadUrl(edtUrl.getText().toString());

}

});

btnBack.setOnClickListener(new View.OnClickListener(){

@Override

public void onClick(View view) {

web.goBack();

}

class MyWebViewClient extends WebViewClient {

@Override

public boolean shouldOverrideUrlLoading(WebView view, String url) {

return super.shouldOverrideUrlLoading(view, url);

});

}

Build Web Browser(WebView)