這篇是要替上一篇 [Android] 如何使用Google Translate API 和 Spinner 製作翻譯機 所作的翻譯機加上發音功能 , 所以要使用到Android 的 android.speech.tts.TextToSpeech , 對於這個功能Android 官方的部落格有一篇文章介紹得很清楚: An introduction to Text-To-Speech in Android , 大家可以參考一下 , 有些Android 的手機由於儲存的容量限制 , 所以不一定有安裝 TextToSpeech Engine , 所以首先要先檢查TextToSpeech.Engine 是否有被安裝 , 如果沒安裝的話再使用Android API去安裝 , 另外不是每個語言都被支援發音 , 所以我們還要去check一下 , 系統是否支援 , Layout檔案和AndroidManifest.xml都和上一篇一樣沒更改 , 所以這邊只貼程式碼的部分。
package com.android;
import java.util.Locale;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.speech.tts.TextToSpeech;
import android.speech.tts.TextToSpeech.OnInitListener;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.ArrayAdapter;
import android.widget.EditText;
import android.widget.Spinner;
import android.widget.Button;
import android.widget.Toast;
import com.google.api.translate.Language;
import com.google.api.translate.Translate;
public class GoogleTranslateSpinner extends Activity implements OnItemSelectedListener , Button.OnClickListener , OnInitListener
{
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
AAdapter = new ArrayAdapter(this,android.R.layout.simple_spinner_item,LanguageNameArray);
AAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
//ArrayAdapter設定下拉式清單內容的layout格式
//android. 開頭的範本是由Android提供的
SpinnerFrom = (Spinner) findViewById(R.id.SpinnerFrom);
SpinnerFrom.setAdapter(AAdapter);
SpinnerFrom.setOnItemSelectedListener(this);
SpinnerTo = (Spinner) findViewById(R.id.SpinnerTo);
SpinnerTo.setAdapter(AAdapter);
SpinnerTo.setOnItemSelectedListener(this);
EditTextFrom = (EditText) findViewById(R.id.EditTextFrom);
EditTextTo = (EditText) findViewById(R.id.EditTextTo);
Button = (Button) findViewById(R.id.Button);
Button.setOnClickListener(this);
Translate.setHttpReferrer("http://shung007.blogspot.com/");
//Translate.setHttpReferrer(" Enter the URL of your site here");
//必要!!! 否則程式會出現Exception
Intent checkIntent = new Intent();
checkIntent.setAction(TextToSpeech.Engine.ACTION_CHECK_TTS_DATA);
startActivityForResult(checkIntent, MY_TTS_CHECK_CODE);
//前往檢查 TTS Engine有無安裝
}
final int MY_TTS_CHECK_CODE = 9527;
TextToSpeech TToSpeech;
Spinner SpinnerFrom , SpinnerTo;
EditText EditTextFrom , EditTextTo;
Button Button;
int positionFrom , positionTo;
ArrayAdapter AAdapter;
public String[] LanguageNameArray = new String[]{
"繁體中文", "CHINESE_SIMPLIFIED", "GERMAN", "ENGLISH",
"JAPANESE", "FRENCH"
};
//作為顯示在Spinner裡的清單內容
public Language[] LanguageCode = new Language[]{
Language.CHINESE_TRADITIONAL, Language.CHINESE_SIMPLIFIED,
Language.GERMAN, Language.ENGLISH, Language.JAPANESE, Language.FRENCH
};
//相對應的LanguageCode , 作為之後傳遞的引數用
public Locale[] LocaleCode = new Locale[]{
Locale.CHINESE, Locale.CHINA,
Locale.GERMAN, Locale.ENGLISH, Locale.JAPANESE, Locale.FRENCH
};
//相對應的Locale值 , 準備替我們所選擇的語言發音
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
// TODO Auto-generated method stub
if(requestCode == MY_TTS_CHECK_CODE)
{
if(resultCode == TextToSpeech.Engine.CHECK_VOICE_DATA_PASS) //如果TTS Engine有成功找到的話
{
TToSpeech = new TextToSpeech(this, this);
//宣告一個 TextToSpeech instance
//並註冊android.speech.tts.TextToSpeech.OnInitListener
//當TTS Engine 初始完畢之後會呼叫 onInit(int status)
Log.d("onActivityResult" , "onInit");
}
else //如果TTS Engine 沒有安裝的話 , 要求API安裝
{
Intent installIntent = new Intent();
installIntent.setAction(TextToSpeech.Engine.ACTION_INSTALL_TTS_DATA);
startActivity(installIntent);
}
}
}
@Override
public void onItemSelected(AdapterView parent, View view, int position,
long arg)
{
if(parent.equals(SpinnerFrom)) positionFrom = position;
else positionTo = position;
//判斷並記錄使用者選擇了哪個語言翻譯
}
@Override
public void onNothingSelected(AdapterView arg0)
{
// TODO Auto-generated method stub
}
@Override
public void onClick(View ButtonView)
{
//按下Translate按鈕之後 , 執行翻譯的動作
try
{
EditTextTo.setText(Translate.execute(EditTextFrom.getText().toString(), LanguageCode[positionFrom], LanguageCode[positionTo]));
int intLocal = TToSpeech.isLanguageAvailable(LocaleCode[positionFrom]);
if(intLocal == TextToSpeech.LANG_MISSING_DATA || intLocal == TextToSpeech.LANG_NOT_SUPPORTED)
{
Toast.makeText(this, "不支援這個語言或是資料遺失", Toast.LENGTH_LONG).show();
}
else
{
TToSpeech.setLanguage(LocaleCode[positionFrom]);
TToSpeech.speak(EditTextFrom.getText().toString(), TextToSpeech.QUEUE_ADD, null);
//發音 , 如果現在TTS Engine 正在發音的話 , 參數 TextToSpeech.QUEUE_FLUSH 代表會將其發音內容中斷 , 並且開始發音
//TextToSpeech.QUEUE_ADD 代表會等到現在的發音的內容結束才開始發音
}
} catch (Exception e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
@Override
public void onInit(int status)
{
// TODO Auto-generated method stub
Log.d("onInit" , "onInit");
}
@Override
protected void onDestroy()
{
// TODO Auto-generated method stub
super.onDestroy();
TToSpeech.shutdown(); //釋放 TTS Engine所使用的資源
}
} 不過當按下Button的時候 , 要隔一兩秒才會發音 , 另外官網API Referece 的 Locale Class , 所提供的地區參數蠻多的 , 另外 TextToSpeech.OnInitListener interface的介紹 , 但是敘述的不多
看來不支援日文發音 , 就brother這個字來說 , 使用英文 , 德文和法文都可以成功發音
