有道词典

来源：互联网发布：电脑日历备忘录软件编辑：程序博客网时间：2024/05/05 00:58

刚刚学习了WebView组件，写了一个有道词典的案例

图片：

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);        }    }}

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