WebView Common methods of Android network technology

public class WebViewTest extends Activity {    private WebView wv;    private EditText et;        @Override    protected void onCreate(Bundle savedInstanceState) {        // TODO Auto-generated method stub        super.onCreate(savedInstanceState);        setContentView(R.layout.webview);        wv = (WebView) findViewById(R.id.webview_wv);        wv.loadUrl(http://www.baidu.com);        initWV();        et = (EditText) findViewById(R.id.webview_et);        et.setSelection(et.getText().length());    }    private void initWV() {        // TODO Auto-generated method stub        //设置内核，支持ajax        wv.setWebChromeClient(new WebChromeClient());        //new WebViewClient()默认基于webkit内核        wv.setWebViewClient(new WebViewClient(){            //从一个网页跳到另一个网页的方式,return true则为目标页面在当前webView打开，不会调用系统默认浏览器            @Override            public boolean shouldOverrideUrlLoading(WebView view, String url) {                // TODO Auto-generated method stub                return true;            }            //当页面加载完毕调用的方法            @Override            public void onPageFinished(WebView view, String url) {                // TODO Auto-generated method stub                Toast.makeText(WebViewTest.this, 加载完毕！, 0).show();                super.onPageFinished(view, url);            }                        //页面开始加载时调用的方法            @Override            public void onPageStarted(WebView view, String url, Bitmap favicon) {                // TODO Auto-generated method stub                et.setText(url);                super.onPageStarted(view, url, favicon);            }        });                //设置支持js脚本        wv.getSettings().setJavaScriptEnabled(true);        //设置支持手指放大        wv.getSettings().setSupportZoom(true);        wv.getSettings().setBuiltInZoomControls(true);    }        public void load(View view){        //加载URL        wv.loadUrl(et.getText().toString().trim());    }        public void reload(View view){        //重新载入，刷新页面        wv.reload();    }        public void back(View view){        //后退        wv.goBack();    }        //设置（拦截）手机上的按键触摸时间    @Override    public boolean onKeyDown(int keyCode, KeyEvent event) {        // TODO Auto-generated method stub        switch (keyCode) {        case KeyEvent.KEYCODE_BACK:            wv.goBack();            break;         default:            break;        }        return super.onKeyDown(keyCode, event);    }}

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

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WebView Common methods of Android network technology