android中TextToSpeech的使用

将文本转换成语音输出

package com.example.androidapi.app;

import java.util.Locale;
import java.util.Random;

import android.app.Activity;
import android.os.Bundle;
import android.speech.tts.TextToSpeech;
import android.util.Log;
import android.view.View;
import android.widget.Button;

import com.example.androidapi.R;

public class TextToSpeechActivity extends Activity implements TextToSpeech.OnInitListener {

    private static final String TAG = "TextToSpeechDemo";
    private TextToSpeech mTts;
    private Button mAgainButton;
    private static final Random RANDOM = new Random();
    private static final String[] HELLOS = {
    	"Hello","Salutations","Greetings",
    	"Howdy","What's crack-a-lackin?","That explains the stench!"
    };

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.text_to_speech);

        mTts = new TextToSpeech(this,this );

        mAgainButton = (Button) findViewById(R.id.again_button);

        mAgainButton.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                sayHello();
            }
        });
    }
    
    private void sayHello() {
    	int helloLength = HELLOS.length;
    	String hello = HELLOS[RANDOM.nextInt(helloLength)];
    	mTts.speak(hello, TextToSpeech.QUEUE_FLUSH, null);
    }

    public void onInit(int status) {
    	if (status == TextToSpeech.SUCCESS) {
    		int result = mTts.setLanguage(Locale.UK);
    		Log.e("dddd", "result==="+result);
    		if (result == TextToSpeech.LANG_MISSING_DATA ||
    				result == TextToSpeech.LANG_NOT_SUPPORTED) {
    			Log.e(TAG, "Language is not available.");
    		} else {
    			mAgainButton.setEnabled(true);
    			sayHello();
    		}
    	} else {
    		Log.e(TAG, "Could not initialize TextToSpeech.");
    	}
    }
    
    @Override
    public void onDestroy() {
        if (mTts != null) {
            mTts.stop();
            mTts.shutdown();
        }
        super.onDestroy();
    }
}