Android自带的TTS功能
在Android1.6之后添加了TextToSpeech，也叫TTS，把相应的文字转化成语音播报，增强了用户体验。可以根据语言播报
界面上的控件如下：
可以选择的语言
但有的语言不支持，比如中文就不支持
代码也比较简单，能简单介绍TTS的用法
MainActivity.java
package com.example.tts;
import java.util.ArrayList;
import java.util.List;
import java.util.Locale;
import android.app.Activity;
import android.os.Bundle;
import android.speech.tts.TextToSpeech;
import android.speech.tts.TextToSpeech.OnInitListener;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Spinner;
import android.widget.Toast;
/**
* 根据选择的语言播报TTS
*
* @author Administrator
*
*/
public class MainActivity extends Activity {
private TextToSpeech mSpeech = null;
private Spinner langSpinner = null;
private EditText edit = null;
private Button btn = null;
private String[] langs;
private String curLang;
private List<String> langList = new ArrayList<String>();
private ArrayAdapter<String> langAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
langs = getResources().getStringArray(R.array.languages); // 得到语言数组
langSpinner = (Spinner) findViewById(R.id.spinner);
edit = (EditText) findViewById(R.id.edit);
btn = (Button) findViewById(R.id.btn);
btn.setOnClickListener(new BtnListener());
for (int i = 0; i < langs.length; i++) {
langList.add(langs[i]);
}
// 设置下拉框的适配器和样式
langAdapter = new ArrayAdapter<String>(MainActivity.this,
android.R.layout.simple_spinner_item, langList);
langAdapter
.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
langSpinner.setAdapter(langAdapter);
// 下拉框监听器
langSpinner
.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> adapter,
View view, int position, long id) {
// TODO Auto-generated method stub
curLang = (String) langSpinner.getAdapter().getItem(
(int) id);
if(mSpeech != null)
{
mSpeech.stop();
mSpeech.shutdown();
mSpeech = null;
}
// 创建TTS对象
mSpeech = new TextToSpeech(MainActivity.this, new TTSListener());
Toast.makeText(MainActivity.this, "select = " + curLang, Toast.LENGTH_SHORT).show();
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
});
}
private int SetLanguage(String lang) {
int result = 0;
if (lang.equals("CANADA")) {
result = mSpeech.setLanguage(Locale.CANADA);
} else if (lang.equals("CANADA_FRENCH")) {
result = mSpeech.setLanguage(Locale.CANADA_FRENCH);
} else if (lang.equals("CHINA")) {
result = mSpeech.setLanguage(Locale.CHINA);
} else if (lang.equals("CHINESE")) {
result = mSpeech.setLanguage(Locale.CHINESE);
} else if (lang.equals("ENGLISH")) {
result = mSpeech.setLanguage(Locale.ENGLISH);
} else if (lang.equals("FRANCE")) {
result = mSpeech.setLanguage(Locale.FRANCE);
} else if (lang.equals("FRENCH")) {
result = mSpeech.setLanguage(Locale.FRENCH);
} else if (lang.equals("GERMAN")) {
result = mSpeech.setLanguage(Locale.GERMAN);
} else if (lang.equals("GERMANY")) {
result = mSpeech.setLanguage(Locale.GERMANY);
} else if (lang.equals("ITALIAN")) {
result = mSpeech.setLanguage(Locale.ITALIAN);
} else if (lang.equals("ITALY")) {
result = mSpeech.setLanguage(Locale.ITALY);
} else if (lang.equals("JAPAN")) {
result = mSpeech.setLanguage(Locale.JAPAN);
} else if (lang.equals("JAPANESE")) {
result = mSpeech.setLanguage(Locale.JAPANESE);
} else if (lang.equals("KOREA")) {
result = mSpeech.setLanguage(Locale.KOREA);
} else if (lang.equals("KOREAN")) {
result = mSpeech.setLanguage(Locale.KOREAN);
} else if (lang.equals("PRC")) {
result = mSpeech.setLanguage(Locale.PRC);
} else if (lang.equals("ROOT")) {
result = mSpeech.setLanguage(Locale.ROOT);
} else if (lang.equals("SIMPLIFIED_CHINESE")) {
result = mSpeech.setLanguage(Locale.SIMPLIFIED_CHINESE);
} else if (lang.equals("TAIWAN")) {
result = mSpeech.setLanguage(Locale.TAIWAN);
} else if (lang.equals("TRADITIONAL_CHINESE")) {
result = mSpeech.setLanguage(Locale.TRADITIONAL_CHINESE);
} else if (lang.equals("UK")) {
result = mSpeech.setLanguage(Locale.UK);
} else if (lang.equals("US")) {
result = mSpeech.setLanguage(Locale.US);
}
return result;
}
private class TTSListener implements OnInitListener {
@Override
public void onInit(int status) {
// TODO Auto-generated method stub
if (status == TextToSpeech.SUCCESS) {
//int result = mSpeech.setLanguage(Locale.ENGLISH);
int result = SetLanguage(curLang);
//如果打印为-2，说明不支持这种语言
Toast.makeText(MainActivity.this, "-------------result = " + result, Toast.LENGTH_LONG).show();
if (result == TextToSpeech.LANG_MISSING_DATA
|| result == TextToSpeech.LANG_NOT_SUPPORTED) {
System.out.println("-------------not use");
} else {
mSpeech.speak("i love you", TextToSpeech.QUEUE_FLUSH, null);
}
}
}
}
private class BtnListener implements OnClickListener {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
mSpeech.speak(edit.getText().toString(), TextToSpeech.QUEUE_FLUSH,
null);
}
}
@Override
protected void onDestroy() {
// TODO Auto-generated method stub
if (mSpeech != null) {
mSpeech.stop();
mSpeech.shutdown();
mSpeech = null;
}
super.onDestroy();
}
}
布局文件
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity" >
<TextView
android:id="@+id/text"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/hello_world" />
<TextView
android:id="@+id/label"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/text"
android:text="@string/select_language" />
<Spinner
android:id="@+id/spinner"
android:layout_width="150dip"
android:layout_height="wrap_content"
android:layout_below="@id/label"
android:drawSelectorOnTop="false" />
<TextView
android:id="@+id/label2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/spinner"
android:text="@string/text" />
<EditText
android:id="@+id/edit"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/label2"
android:text="@string/example"
android:inputType="text"
/>
<Button
android:id="@+id/btn"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/edit"
android:text="@string/btn"
/>
</RelativeLayout>
代码下载：
点击打开链接