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.