웹뷰예제

<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"
    tools:context=".MainActivity"
    android:orientation="vertical"
    >


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

        <EditText
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:hint="URL을 입력하세요!"
            android:id="@+id/editText" />

        <Button
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="이동"
            android:id="@+id/button" />

        <Button
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="이전"
            android:id="@+id/button2" />
    </LinearLayout>

    <WebView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/webView" />
</LinearLayout>
 
 
 
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package com.naver.combo2b_17;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
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 wv;

    // inner class. 웹뷰에 추가기능 부여. 링크를 클릭했을 때 웹뷰내부에서 로딩 가능하도록 설정.
    class MyWVC extends WebViewClient{
        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            return super.shouldOverrideUrlLoading(view, url);
        }
    }


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        // id로 뷰를 찾아오기
        edtUrl=(EditText)findViewById(R.id.editText);
        btnGo=(Button)findViewById(R.id.button);
        btnBack=(Button)findViewById(R.id.button2);
        wv=(WebView)findViewById(R.id.webView);

        wv.setWebViewClient(new MyWVC());//웹뷰클라이언트 세팅
        WebSettings ws=wv.getSettings(); //웹세팅생성
        ws.setBuiltInZoomControls(true); //확대축소기능추가
        ws.setJavaScriptEnabled(true);//자바스크립트가능하게 추가

        //이벤트처리
        btnGo.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                wv.loadUrl(edtUrl.getText().toString());// url을 이용해서 페이지로딩
            }
        });

        btnBack.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                wv.goBack();//이전페이지로 이동
            }
        });
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }
}