Android组件WebView编写有道词典小案例分享

<RelativeLayout 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:background="@drawable/mainbg" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" tools:context=".MainActivity" > <EditText  android:id="@+id/etWord"  android:layout_width="wrap_content"  android:layout_height="wrap_content"  android:layout_alignParentLeft="true"  android:layout_alignParentTop="true"  android:layout_marginTop="27dp"  android:background="@android:drawable/edit_text"  android:ems="10"  android:singleLine="true"  android:textColor="#552006"  android:textColorHint="#782f10" >  <requestFocus /> </EditText> <WebView  android:id="@+id/wvSearchResult"  android:layout_width="match_parent"  android:layout_height="match_parent"  android:layout_alignLeft="@+id/etWord"  android:layout_below="@+id/etWord"  android:layout_marginTop="22dp"  android:background="@drawable/bg_roundcorner"  android:textAppearance="?android:attr/textAppearanceMedium"  android:textSize="25sp" /> <Button  android:id="@+id/btnSearch"  android:layout_width="wrap_content"  android:layout_height="wrap_content"  android:layout_above="@+id/wvSearchResult"  android:layout_alignParentRight="true"  android:background="@drawable/ibsearchword"  android:onClick="searchWord" /></RelativeLayout>

package com.example.youdaodictionary;import android.app.Activity;import android.os.Bundle;import android.text.TextUtils;import android.view.Menu;import android.view.View;import android.webkit.WebView;import android.webkit.WebViewClient;import android.widget.EditText;import android.widget.Toast;public class MainActivity extends Activity { private EditText etWord; private WebView wvResult; @Override protected void onCreate(Bundle savedInstanceState) {  super.onCreate(savedInstanceState);  setContentView(R.layout.activity_main);  initViews(); } private void initViews() {  etWord = (EditText) findViewById(R.id.etWord);  wvResult = (WebView) findViewById(R.id.wvSearchResult);  wvResult.setWebViewClient(new WebViewClient() {   @Override   public boolean shouldOverrideUrlLoading(WebView view, String url) {    view.loadUrl(url);    return true;   }  }); } @Override public boolean onCreateOptionsMenu(Menu menu) {  getMenuInflater().inflate(R.menu.main, menu);  return true; } public void searchWord(View view) {  String word = etWord.getText().toString();  if (TextUtils.isEmpty(word)) {   Toast.makeText(this, "查询内容不能为空!", Toast.LENGTH_LONG).show();  } else {   final String strUrl = "http://dict.youdao.com/m/search?keyfrom=dict.mindex&vendor=&q="     + word;   wvResult.loadUrl(strUrl);  } }}