声音服务

 

 

 

 

准备五张图片，分别为：voice_lower、voice_off、voice_on、voice_raise、voice_vibrate

 

 

 

在main.xml中：

 

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout

  xmlns:android="http://schemas.android.com/apk/res/android"

  android:orientation="horizontal"

  android:layout_width="fill_parent"

  android:layout_height="fill_parent"

  android:background="#00ff33">

  <ImageButton

     android:id="@+id/voiceon"

     android:layout_width="wrap_content"

     android:layout_height="wrap_content"

     android:src="@drawable/voice_on" />

  <ImageButton

     android:id="@+id/voiceoff"

     android:layout_width="wrap_content"

     android:layout_height="wrap_content"

     android:src="@drawable/voice_off" />

  <ImageButton

     android:id="@+id/voicevibrate"

     android:layout_width="wrap_content"

     android:layout_height="wrap_content"

     android:src="@drawable/voice_vibrate" />

  <ImageButton

     android:id="@+id/voicelower"

     android:layout_width="wrap_content"

     android:layout_height="wrap_content"

     android:src="@drawable/voice_lower" />

  <ImageButton

     android:id="@+id/voiceraise"  

     android:layout_width="wrap_content"

     android:layout_height="wrap_content"

     android:src="@drawable/voice_raise" />

</LinearLayout>

 

 

 

 

在MyAudioManagerDemo.java中：

 

package com.li.audiomanager;

 

import java.io.IOException;

 

import android.app.Activity;

import android.content.Context;

import android.media.AudioManager;

import android.media.MediaPlayer;

import android.os.Bundle;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.ImageButton;

import android.widget.Toast;

 

public class MyAudioManagerDemo extends Activity {

  private ImageButton voiceOn = null ;

  private ImageButton voiceOff = null ;

  private ImageButton voiceVibrate = null ;

  private ImageButton voiceLower = null ;

  private ImageButton voiceRaise = null ;

  private AudioManager audio = null ;

  @Override

  public void onCreate(Bundle savedInstanceState) {

     super.onCreate(savedInstanceState);

     super.setContentView(R.layout.main);

     this.voiceOn = (ImageButton) super.findViewById(R.id.voiceon) ;

     this.voiceOff = (ImageButton) super.findViewById(R.id.voiceoff) ;

     this.voiceVibrate = (ImageButton) super.findViewById(R.id.voicevibrate) ;

     this.voiceLower = (ImageButton) super.findViewById(R.id.voicelower) ;

     this.voiceRaise = (ImageButton) super.findViewById(R.id.voiceraise) ;

     this.audio = (AudioManager) super

         .getSystemService(Context.AUDIO_SERVICE);

     this.voiceOn.setOnClickListener(new VoiceOnOnClickListenerImpl()) ;

     this.voiceOff.setOnClickListener(new VoiceOffOnClickListenerImpl()) ;

     this.voiceVibrate.setOnClickListener(new VoiceVibrateOnClickListenerImpl()) ;

     this.voiceLower.setOnClickListener(new VoiceLowerOnClickListenerImpl()) ;

     this.voiceRaise.setOnClickListener(new VoiceRaiseOnClickListenerImpl()) ;

  }

  private void playAudio(){

     MediaPlayer media = MediaPlayer.create(this, R.raw.ms);

     media.setLooping(true);// 循环播放

     try {

       media.prepare() ;

     } catch (Exception e) {

     }

     media.start() ;

  }

  private class VoiceOnOnClickListenerImpl implements OnClickListener {

 

     public void onClick(View v) {

       MyAudioManagerDemo.this.audio.setRingerMode(AudioManager.RINGER_MODE_NORMAL) ;

       Toast.makeText(MyAudioManagerDemo.this, "手机音量开启！", Toast.LENGTH_SHORT).show() ;

     }

    

  }

  private class VoiceOffOnClickListenerImpl implements OnClickListener {

 

     public void onClick(View v) {

       MyAudioManagerDemo.this.audio.setRingerMode(AudioManager.RINGER_MODE_SILENT) ;

       Toast.makeText(MyAudioManagerDemo.this, "手机静音！", Toast.LENGTH_SHORT).show() ;

     }

    

  }

  private class VoiceVibrateOnClickListenerImpl implements OnClickListener {

 

     public void onClick(View v) {

       MyAudioManagerDemo.this.audio.setRingerMode(AudioManager.RINGER_MODE_VIBRATE) ;

       Toast.makeText(MyAudioManagerDemo.this, "手机为震动模式！", Toast.LENGTH_SHORT).show() ;

     }

    

  }

  private class VoiceLowerOnClickListenerImpl implements OnClickListener {

 

     public void onClick(View v) {

       MyAudioManagerDemo.this.audio.adjustVolume(AudioManager.ADJUST_LOWER, 0) ;

       Toast.makeText(MyAudioManagerDemo.this, "音量减小！", Toast.LENGTH_SHORT).show() ;

     }

    

  }

  private class VoiceRaiseOnClickListenerImpl implements OnClickListener {

 

     public void onClick(View v) {

       MyAudioManagerDemo.this.audio.adjustVolume(AudioManager.ADJUST_RAISE, 0) ;

       Toast.makeText(MyAudioManagerDemo.this, "音量增加！", Toast.LENGTH_SHORT).show() ;

     }

    

  }

}