android texttospeech怎么知道播放结束

目前只支持5种语言，分别是English、 French 、 German 、 Italian 和 Spanish.
系统要求为android 1.6以上

直接上代码啦：

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public class TTSActivity extends Activity implements TextToSpeech.OnInitListener {
private static final String TAG = "TextToSpeechDemo";

private TextToSpeech mTts;//首先来个对象，至于TextToSpeech类，按F3可以查看

[java] view plaincopy
//TODO complete javadoc + add links to constants
public class TextToSpeech {
/**
* Denotes a successful operation.
*/
public static final int SUCCESS = 0;
/**
* Denotes a generic operation failure.
*/
public static final int ERROR = -1;

以上只包含部分代码，其他的就省略了。

[java] view plaincopy
mTts = new TextToSpeech(this,
this // TextToSpeech.OnInitListener
);

然后是实例化，构造函数参数也可以F3一下

[java] view plaincopy
public TextToSpeech(Context context, OnInitListener listener) {
mContext = context;
mPackageName = mContext.getPackageName();
mInitListener = listener;
mCachedParams = new String[2*Engine.NB_CACHED_PARAMS]; // store key and value
mCachedParams[Engine.PARAM_POSITION_RATE] = Engine.KEY_PARAM_RATE;
mCachedParams[Engine.PARAM_POSITION_LANGUAGE] = Engine.KEY_PARAM_LANGUAGE;
mCachedParams[Engine.PARAM_POSITION_COUNTRY] = Engine.KEY_PARAM_COUNTRY;
mCachedParams[Engine.PARAM_POSITION_VARIANT] = Engine.KEY_PARAM_VARIANT;
mCachedParams[Engine.PARAM_POSITION_STREAM] = Engine.KEY_PARAM_STREAM;
mCachedParams[Engine.PARAM_POSITION_UTTERANCE_ID] = Engine.KEY_PARAM_UTTERANCE_ID;
mCachedParams[Engine.PARAM_POSITION_RATE + 1] =
String.valueOf(Engine.DEFAULT_RATE);
// initialize the language cached parameters with the current Locale
Locale defaultLoc = Locale.getDefault();
mCachedParams[Engine.PARAM_POSITION_LANGUAGE + 1] = defaultLoc.getISO3Language();
mCachedParams[Engine.PARAM_POSITION_COUNTRY + 1] = defaultLoc.getISO3Country();
mCachedParams[Engine.PARAM_POSITION_VARIANT + 1] = defaultLoc.getVariant();
mCachedParams[Engine.PARAM_POSITION_STREAM + 1] =
String.valueOf(Engine.DEFAULT_STREAM);
mCachedParams[Engine.PARAM_POSITION_UTTERANCE_ID + 1] = "";
initTts();
}

context也就是那个Activity

[java] view plaincopy
public abstract class Context {
/**
* File creation mode: the default mode, where the created file can only
* be accessed by the calling application (or all applications sharing the
* same user ID).
* @see #MODE_WORLD_READABLE
* @see #MODE_WORLD_WRITEABLE
*/
public static final int MODE_PRIVATE = 0x0000;
/**
* File creation mode: allow all other applications to have read access
* to the created file.
* @see #MODE_PRIVATE
* @see #MODE_WORLD_WRITEABLE
*/
public static final int MODE_WORLD_READABLE = 0x0001;
/**
* File creation mode: allow all other applications to have write access
* to the created file.
* @see #MODE_PRIVATE
* @see #MODE_WORLD_READABLE
*/

listener是个初始化监听接口

[java] view plaincopy
/**
* Called when the TTS has initialized.
*
* The InitListener must implement the onInit function. onInit is passed a
* status code indicating the result of the TTS initialization.
*/
public interface OnInitListener {
public void onInit(int status);
}

implements Listener代码如下：(这是APIDemo里面的)

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// Implements TextToSpeech.OnInitListener.
public void onInit(int status) {
// status can be either TextToSpeech.SUCCESS or TextToSpeech.ERROR.
if (status == TextToSpeech.SUCCESS) {
// Set preferred language to US english.
// Note that a language may not be available, and the result will indicate this.
int result = mTts.setLanguage(Locale.US);
// Try this someday for some interesting results.
// int result mTts.setLanguage(Locale.FRANCE);
if (result == TextToSpeech.LANG_MISSING_DATA ||
result == TextToSpeech.LANG_NOT_SUPPORTED) {
// Lanuage data is missing or the language is not supported.
Log.e(TAG, "Language is not available.");
} else {
// Check the documentation for other possible result codes.
// For example, the language may be available for the locale,
// but not for the s