android tts 语音朗读 的开发

1、首先要tts是否有所需语言的语音数据，如果没有需安装它

`
Intent checkIntent = new Intent();
checkIntent.setAction(TextToSpeech.Engine.ACTION_CHECK_TTS_DATA);
startActivityForResult(checkIntent, MY_DATA_CHECK_CODE);

private TextToSpeech mTts;
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == MY_DATA_CHECK_CODE) {
if (resultCode == TextToSpeech.Engine.CHECK_VOICE_DATA_PASS) {
// success, create the TTS instance
mTts = new TextToSpeech(this, this);
} else {
// missing data, install it
Intent installIntent = new Intent();
installIntent.setAction(
TextToSpeech.Engine.ACTION_INSTALL_TTS_DATA);
startActivity(installIntent);
}
}
} `

2、设置地区（语言）
mTts.setLanguage(Locale.US);

3、判断是否支持某地区的语言
mTts.isLanguageAvailable(Locale.FRANCE))
或

mTts.isLanguageAvailable(new Locale(“spa”, “ESP”)))

或

mTts.isLanguageAvailable(new Locale(“spa”))

如果没有语言数据，会返回TextToSpeech.LANG_MISSING_DATA，否则返回ACTION_CHECK_TTS_DATA

4、处理发音
String myText1 = "Did you sleep well?";
String myText2 = "I hope so, because it's time to wake up.";
mTts.speak(myText1, TextToSpeech.QUEUE_FLUSH, null);
mTts.speak(myText2, TextToSpeech.QUEUE_ADD, null);

5、加参数

HashMap<String, String> myHashAlarm = new HashMap();
myHashAlarm.put(TextToSpeech.Engine.KEY_PARAM_STREAM, String.valueOf(AudioManager.STREAM_ALARM));
mTts.speak(myText1, TextToSpeech.QUEUE_FLUSH, myHashAlarm);
mTts.speak(myText2, TextToSpeech.QUEUE_ADD, myHashAlarm);

6、加完成监听

`

mTts.setOnUtteranceCompletedListener(this);
myHashAlarm.put(TextToSpeech.Engine.KEY_PARAM_STREAM, String.valueOf(AudioManager.STREAM_ALARM));
mTts.speak(myText1, TextToSpeech.QUEUE_FLUSH, myHashAlarm);
myHashAlarm.put(TextToSpeech.Engine.KEY_PARAM_UTTERANCE_ID, “end of wakeup message ID”);
// myHashAlarm now contains two optional parameters
mTts.speak(myText2, TextToSpeech.QUEUE_ADD, myHashAlarm);

public void onUtteranceCompleted(String uttId) {
if (uttId == “end of wakeup message ID”) {
playAnnoyingMusic();
}
} `

7、将发音录入文件
`

HashMap myHashRender = new HashMap();
String wakeUpText = “Are you up yet?”;
String destFileName = “/sdcard/myAppCache/wakeUp.wav”;
myHashRender.put(TextToSpeech.Engine.KEY_PARAM_UTTERANCE_ID, wakeUpText);

mTts.addSpeech(wakeUpText, destFileName);
mTts.speak(wakeUpText, TextToSpeech.QUEUE_ADD, myHashAlarm);
`

8、关闭tts
`

mTts.shutdown();
mTts.synthesizeToFile(wakuUpText, myHashRender, destFileName);
`