У меня есть класс TextToSpeechActivity:
public class TextToSpeechActivity extends Activity implements TextToSpeech.OnInitListener
{
private TextToSpeech mTts;
// This code can be any value you want, its just a checksum.
private static final int MY_DATA_CHECK_CODE = 1234;
/**
* Called when the activity is first created.
*/
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
// Fire off an intent to check if a TTS engine is installed
Intent checkIntent = new Intent();
checkIntent.setAction(TextToSpeech.Engine.ACTION_CHECK_TTS_DATA);
startActivityForResult(checkIntent, MY_DATA_CHECK_CODE);
}
/**
* Executed when a new TTS is instantiated. Some static text is spoken via TTS here.
* @param i
*/
public void onInit(int i)
{
mTts.speak("Hello folks, welcome to my little demo on Text To Speech.",
TextToSpeech.QUEUE_FLUSH, // Drop all pending entries in the playback queue.
null);
}
/**
* This is the callback from the TTS engine check, if a TTS is installed we
* create a new TTS instance (which in turn calls onInit), if not then we will
* create an intent to go off and install a TTS engine
* @param requestCode int Request code returned from the check for TTS engine.
* @param resultCode int Result code returned from the check for TTS engine.
* @param data Intent Intent returned from the TTS check.
*/
public 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);
}
}
}
/**
* Be kind, once you've finished with the TTS engine, shut it down so other
* applications can use it without us interfering with it :)
*/
@Override
public void onDestroy()
{
// Don't forget to shutdown!
if (mTts != null)
{
mTts.stop();
mTts.shutdown();
}
super.onDestroy();
}
}
А это основной класс:
public class TexttospeechdemoActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Intent intent = new Intent(this,TextToSpeechActivity.class);
startActivity(intent);
}
}
Как видите, я пытаюсь запустить TextToSpeechActivity с:
Intent intent = new Intent(this,TextToSpeechActivity.class);
startActivity(intent);
но это вызывает ошибку и превращается в отладку. Как я могу это исправить?
Спасибо.