웹뷰(Web View)

WebView는 android 2.2버전(API 8) 이후 부터 지원

ㅇ AndroidManifest.xml

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

 

ㅇ Activity_main.xml

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

ㅇ MainActivity

public class MainActivity extends Activity {

    private WebView webView;

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

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

        webView.getSettings().setJavaScriptEnabled(true);      // 웹뷰에서 자바 스크립트 사용
        webView.loadUrl("http://www.naver.com");            // 웹뷰에서 불러올 URL 입력

        webView.setWebViewClient(new WishWebViewClient());

    }

    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
        if((keyCode == KeyEvent.KEYCODE_BACK) && webView.canGoBack()){
            webView.goBack();
            return true;
        }

        return super.onKeyDown(keyCode, event);
    }

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

}

* 만약 화면 전체를 Webview처럼 특정 url만 보여줄때는 Webview 대신 Intent.ACTION_VIEW 를 통해 간단하게 보여 줄 수 있
  Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://google.com"));
  startActivity(intent);