android 手机翻译

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Sample9_6_Activity.java:

package com.bn.chap9.translate;import android.app.Activity;import android.os.Bundle;import android.os.Handler;import android.webkit.WebSettings;import android.webkit.WebView;import android.widget.EditText;public class Sample9_6_Activity extends Activity {EditText et;WebView wv;Handler hd = new Handler();@Overridepublic void onCreate(Bundle savedInstanceState){     super.onCreate(savedInstanceState);    setContentView(R.layout.main);    et = (EditText) findViewById(R.id.myEditText1);    wv = (WebView) findViewById(R.id.myWebView1);    WebSettings webSettings = wv.getSettings();//取得WebSettings     webSettings.setJavaScriptEnabled(true);//设定可执行JavaScript    wv.addJavascriptInterface(this, "irdc");//设定给html调用的对象及名称    String url = "file:///android_asset/google_translate.html";//载入assets/google_translate.html     wv.loadUrl(url);}/* 2 该过程由“翻译”按钮触发*/public void runJavaScript(){      hd.post(new Runnable(){        public void run(){        String str=et.getText().toString().trim();          if(str.length()!=0){            wv.loadUrl("javascript:translate('"//调用google_translate.html里的javascript                + str+ "')");          }}});}}

google_translate.html:

<html><head>  <meta   http-equiv="Content-Type"   content="text/html; charset=GB2312" /></head><script type="text/javascript" src="http://www.google.com/jsapi"></script> <!-- 4 该函数由3调用 --><script type="text/javascript">    google.load("language", "1");    function mytranslate(strInput,target)    {      try      {        google.language.translate        (strInput, "", "zh-TW", function(result)        {          if (!result.error)          {            document.getElementById(target).innerHTML            =result.translation;          }          else          {            google.language.translate            (strInput, "en", "zh-TW", function(result)            {              if (!result.error)              {                document.getElementById(target).innerHTML                =result.translation;              }              else              {                document.getElementById(target).innerHTML                =result.translation;              }            });          }        });      }       catch(e)      {        alert("Error is:"+e);      }    }</script><!-- 3  该步骤由2 触发 --><script language="javascript">function translate(strTranslate){    alert(strTranslate);    mytranslate(strTranslate, "showDiv");    alert("Done!");}</script><body>  <p align="center">  <!-- 1  按钮是第一步 -->  <input type="button" value="翻译" onClick="window.irdc.runJavaScript()">  </p> <!--  5 该显示控件由4实现后的翻译结果 -->  <div id="showDiv"   style="text-align:center;font-size:18pt;   padding-left:5px; padding-right:5px;   padding-top:2px; padding-bottom:2px">  </div></body></html>