Android实现有道辞典查询功能实例详解

<?xml version="1.0" encoding="utf-8"?>
<AbsoluteLayout
 xmlns:android="http://schemas.android.com/apk/res/android"
 android:orientation="vertical"
 android:layout_width="fill_parent"
 android:layout_height="fill_parent"
 >
 <!-- 建立一個EditText -->
 <EditText
 android:id="@+id/myEditText1"
 android:layout_width="200px"
 android:layout_height="40px"
 android:textSize="18sp"
 android:layout_x="5px"
 android:layout_y="32px"
 />
 <!-- 建立一個Button -->
 <Button
 android:id="@+id/myButton01"
 android:layout_width="60px"
 android:layout_height="40px"
 android:text="查询"
 android:layout_x="205px"
 android:layout_y="35px"
 />
<Button
  android:id="@+id/myButton02"
  android:layout_height="40px"
  android:layout_width="50px"
  android:text="清空"
  android:layout_y="35px"
  android:layout_x="270px"
 />
 <!-- 建立一個WebView -->
 <WebView
 android:id="@+id/myWebView1"
 android:layout_height="330px"
 android:layout_width="300px"
 android:layout_x="7px"
 android:layout_y="90px"
 android:background="@drawable/black"
 android:focusable="false"
 />
</AbsoluteLayout>

package AndroidApplication.Instance;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.webkit.WebView;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
public class YouDao extends Activity
{
 //查询按钮申明
 private Button myButton01;
 //清空按钮申明
 private Button myButton02;
 //输入框申明
 private EditText mEditText1;
 //加载数据的WebView申明
 private WebView mWebView1;
 public void onCreate(Bundle savedInstanceState)
 {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.main);
  //获得布局的几个控件
  myButton01 = (Button)findViewById(R.id.myButton01);
  myButton02 = (Button) findViewById(R.id.myButton02);
  mEditText1 = (EditText) findViewById(R.id.myEditText1);
  mWebView1 = (WebView) findViewById(R.id.myWebView1);
  //查询按钮添加事件
  myButton01.setOnClickListener(new Button.OnClickListener()
  {
   public void onClick(View arg0)
    {
     String strURI = (mEditText1.getText().toString());
     strURI = strURI.trim();
     //如果查询内容为空提示
     if (strURI.length() == 0)
     {
      Toast.makeText(YouDao.this, "查询内容不能为空!", Toast.LENGTH_LONG)
        .show();
     }
     //否则则以参数的形式从http://dict.youdao.com/m取得数据，加载到WebView里.
     else
     {
      String strURL = "http://dict.youdao.com/m/search?keyfrom=dict.mindex&q="
        + strURI;
      mWebView1.loadUrl(strURL);
     }
    }
  });
  //清空按钮添加事件，将EditText置空
  myButton02.setOnClickListener(new Button.OnClickListener()
  {
   public void onClick(View v)
   {
    mEditText1.setText("");
   }
  });
 }
}