使用Google Translate API編寫自己的Android詞典

通過上一篇文章"在Android應用程序內使用Google Translate API, google-api-translate-java", 原來通過Google Translate API實現Android的翻譯功能就是這麼簡單.

現在便進一步實現一個可以輸入的英譯中詞典.



要在Android應用程序內使用Google的Translate API, 除了按照文章google-api-translate-java下載並添加jar之外, 還需要在AndroidMainfest.xml文件中添加"android.permission.INTERNET"權限.

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.AndroidTranslate"
     android:versionCode="1"
     android:versionName="1.0">
   <application android:icon="@drawable/icon" android:label="@string/app_name">
       <activity android:name=".AndroidTranslate"
                 android:label="@string/app_name">
           <intent-filter>
               <action android:name="android.intent.action.MAIN" />
               <category android:name="android.intent.category.LAUNCHER" />
           </intent-filter>
       </activity>
   </application>
   <uses-sdk android:minSdkVersion="4" />
 <uses-permission android:name="android.permission.INTERNET" />
</manifest>

修改main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
   android:orientation="vertical"
   android:layout_width="fill_parent"
   android:layout_height="fill_parent"
   >
<TextView 
   android:layout_width="fill_parent"
   android:layout_height="wrap_content"
   android:text="My English to Chinese Translate"
   />
<EditText
 android:layout_width="fill_parent"
   android:layout_height="wrap_content"
   android:id="@+id/texttotranlate"
 />
<Button
 android:layout_width="fill_parent"
   android:layout_height="wrap_content"
   android:text = "Translate"
   android:id="@+id/totranslate"
 />
<TextView
 android:layout_width="fill_parent"
   android:layout_height="wrap_content"
   android:id="@+id/comment"
 />
<TextView
 android:layout_width="fill_parent"
   android:layout_height="wrap_content"
   android:id="@+id/translatedtext"
 />
</LinearLayout>

主代碼

package com.AndroidTranslate;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

import com.google.api.translate.Language;
import com.google.api.translate.Translate;


public class AndroidTranslate extends Activity {
 
   EditText textToTranlate;
   Button buttonToTranslate;
   TextView textComment;
   TextView translatedText;
 
   /** Called when the activity is first created. */
   @Override
   public void onCreate(Bundle savedInstanceState) {
       super.onCreate(savedInstanceState);
       setContentView(R.layout.main);
      
       textToTranlate = (EditText)findViewById(R.id.texttotranlate);
       buttonToTranslate = (Button)findViewById(R.id.totranslate);
       textComment = (TextView)findViewById(R.id.comment);
       translatedText = (TextView)findViewById(R.id.translatedtext);
      
       buttonToTranslate.setOnClickListener(buttonToTranslateOnClickListener);
      
   }
  
   private Button.OnClickListener buttonToTranslateOnClickListener = new Button.OnClickListener(){

  @Override
  public void onClick(View v) {
   // TODO Auto-generated method stub
   String strTranslatedText = null;
   String strTextToTranlate = textToTranlate.getText().toString();
   Translate.setHttpReferrer("http://androidbiancheng.blogspot.com/");
   
   try {
    strTranslatedText = Translate.execute(strTextToTranlate, Language.ENGLISH, Language.CHINESE_TRADITIONAL);
    textComment.setText("Text Translated:");
    translatedText.setText(strTranslatedText);
   } catch (Exception e) {
    // TODO Auto-generated catch block
    textComment.setText("--- Error in Translate ---");
    translatedText.setText(null);
    e.printStackTrace();
   } 
  }};
}

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