Android（java）学习笔记117：英文朗诵android App编写实例

1.首先，我先把代码放到下面：

 1 package com.himi.speaker;  2 
 3 import java.util.Locale;  4 
 5 import android.app.Activity;  6 import android.os.Bundle;  7 import android.view.Menu;  8 import android.view.MenuItem;  9 import android.view.View;  10 import android.view.View.OnClickListener;  11 import android.widget.Button;  12 import android.widget.EditText;  13 import android.widget.Toast;  14 import android.speech.tts.TextToSpeech;  15 
 16 
 17 public class MainActivity extends Activity implements OnClickListener {  18 
 19     private Button btn_speak;  20     private EditText edit_input;  21     private TextToSpeech tts;  22     
 23  @Override  24     protected void onCreate(Bundle savedInstanceState) {  25         super.onCreate(savedInstanceState);  26  setContentView(R.layout.activity_main);  27         
 28         tts = new TextToSpeech(this, ttsInitListener);  29         edit_input = (EditText) findViewById(R.id.edit_input);  30         btn_speak = (Button) findViewById(R.id.btn_speak);  31 
 32         btn_speak.setOnClickListener(this);  33  }  34 
 35  @Override  36     public boolean onCreateOptionsMenu(Menu menu) {  37         // Inflate the menu; this adds items to the action bar if it is present.
 38  getMenuInflater().inflate(R.menu.main, menu);  39         return true;  40  }  41 
 42  @Override  43     public boolean onOptionsItemSelected(MenuItem item) {  44         // Handle action bar item clicks here. The action bar will  45         // automatically handle clicks on the Home/Up button, so long  46         // as you specify a parent activity in AndroidManifest.xml.
 47         int id = item.getItemId();  48         if (id == R.id.action_settings) {  49             return true;  50  }  51         if (id == R.id.version) {  52             Toast.makeText(getApplicationContext(), "这是首版本v1.0\n制作者：任逍遥",Toast.LENGTH_LONG).show();;  53  }  54         if (id == R.id.exit) {  55  finish();  56  }  57         return super.onOptionsItemSelected(item);  58  }  59 
 60     public void onClick(View v) {  61         
 62         if(edit_input.getText().length() >0 ) {  63             //朗诵输入文本
 64             tts.speak(edit_input.getText().toString(), TextToSpeech.QUEUE_FLUSH,null );  65             
 66             
 67         }else {  68             tts.speak("Nothing input,Son of a bitch", TextToSpeech.QUEUE_FLUSH,null );  69  }  70         
 71  }  72     
 73 //实现这个接口,这是手机发声的朗诵引擎,就像汽车发动机一样，启动运行.用来前面初始化创建TextToSpeech对象的,绑定这个接口实现这个对象可以具备发声的能力
 74     private TextToSpeech.OnInitListener ttsInitListener = new TextToSpeech.OnInitListener() {  75         public void onInit(int status) {  76             // 使用美式时区目前不支持中文语音数据库
 77             Locale loc = new Locale("us", "", "");  78             // 判断是否安装了美式英文朗诵Text-to-Speech Library
 79             if (tts.isLanguageAvailable(loc) == TextToSpeech.LANG_AVAILABLE) {  80  tts.setLanguage(loc);  81  }  82 
 83  }  84  };  85     
 86     
 87     //OnUtteranceCompletedListener-----API15之后就废弃了  88     
 89 // private TextToSpeech.OnUtteranceCompletedListener ttsUtteranceCompletedListener = new TextToSpeech.OnUtteranceCompletedListener() {  90 //        
 91 // public void onUtteranceCompleted(String utteranceId) {  92 //            // TODO 自动生成的方法存根  93 //            
 94 // }  95 // };
 96     
 97     
 98     protected void OnDestory() {  99  tts.shutdown(); 100         super.onDestroy(); 101         
102  } 103     
104     
105 }

接着我附上activity_main.xml：

 1 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  2  xmlns:tools="http://schemas.android.com/tools"  3  android:layout_width="match_parent"  4  android:layout_height="match_parent"  5  android:orientation="vertical"  6  tools:context="com.himi.speaker.MainActivity" >  7  8 <EditText  9 android:id="@+id/edit_input" 10  android:layout_width="match_parent" 11  android:layout_height="wrap_content" 12  android:lines="1" 13  android:hint="@string/input"/> 14 <Button 15 android:id="@+id/btn_speak" 16  android:layout_width="wrap_content" 17  android:layout_height="wrap_content" 18  android:text="@string/speak"/> 19 20 21 </LinearLayout>

下图是在虚拟机上运行效果图的:

 

这里发现我在虚拟机上可以运行，比如输入"I love you",确实发出英文朗读，但是我把这段程序下载到手机真机上就不能实现朗诵了，我猜想是真机没有安装这里的TextToSpeech Library这个语言数据库文件，后来我就修改了一段程序试着验证我的猜想：如下：

package com.himi.speaker; import java.util.Locale; import android.app.Activity; import android.os.Bundle; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.EditText; import android.widget.Toast; import android.speech.tts.TextToSpeech; public class MainActivity extends Activity implements OnClickListener { private Button btn_speak; private EditText edit_input; private TextToSpeech tts; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); tts = new TextToSpeech(this, ttsInitListener); edit_input = (EditText) findViewById(R.id.edit_input); btn_speak = (Button) findViewById(R.id.btn_speak); btn_speak.setOnClickListener(this); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present.
 getMenuInflater().inflate(R.menu.main, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { // Handle action bar item clicks here. The action bar will // automatically handle clicks on the Home/Up button, so long // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId(); if (id == R.id.action_settings) { return true; } if (id == R.id.version) { Toast.makeText(getApplicationContext(), "这是首版本v1.0\n制作者：任逍遥",Toast.LENGTH_LONG).show();; } if (id == R.id.exit) { finish(); } return super.onOptionsItemSelected(item); } public void onClick(View v) { if(edit_input.getText().length() >0 ) { //朗诵输入文本
            tts.speak(edit_input.getText().toString(), TextToSpeech.QUEUE_FLUSH,null ); }else { tts.speak("Nothing input,Son of a bitch", TextToSpeech.QUEUE_FLUSH,null ); } } //实现这个接口,这是手机发声的朗诵引擎,就像汽车发动机一样，启动运行.用来前面初始化创建TextToSpeech对象的,绑定这个接口实现这个对象可以具备发声的能力
    private TextToSpeech.OnInitListener ttsInitListener = new TextToSpeech.OnInitListener() { public void onInit(int status) { // 使用美式时区目前不支持中文语音数据库
            Locale loc = new Locale("us", "", ""); // 判断是否安装了美式英文朗诵Text-to-Speech Library
            if (tts.isLanguageAvailable(loc) == TextToSpeech.LANG_AVAILABLE) 
 { tts.setLanguage(loc); }
 else //如果我的手机没有安装语音数据，程序点击进入之后，就会自动结束
 {
 finish（）;
 }  } }; //OnUtteranceCompletedListener-----API15之后就废弃了 // private TextToSpeech.OnUtteranceCompletedListener ttsUtteranceCompletedListener = new TextToSpeech.OnUtteranceCompletedListener() { //        
// public void onUtteranceCompleted(String utteranceId) { //            // TODO 自动生成的方法存根 //            
// } // };
    
    
    protected void OnDestory() { tts.shutdown(); super.onDestroy(); } }

事实上，我的在真机上，点击进入之后，确实是直接退出程序。

 

2.于是，我在手机（小米3）中安装了：SpeechSynthesis Data这个语音数据，安装完了之后

进入：设置 / 全部设置 / 辅助功能 / 文字转语音（TTS）输出

设置完毕之后，手机即可发声.