有道词典Demo(WebView)

学习了WebView组件，写了一个有道词典的小案例

效果图如下：

源码下载地址：https://coding.net/u/gxs1225/p/YouDaoDictionary/git

代码如下：
布局

activity_main.xml

<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>

MainActivity.java

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);
        }
    }
}