android 通话录音功能详解手机开发

一、监听服务

    package com.newland.teleinterface;   
       
    import java.io.File;   
    import java.io.IOException;   
    import java.lang.reflect.Method;   
    import java.util.Calendar;   
       
    import com.android.internal.telephony.ITelephony;   
       
    import android.content.Context;   
    import android.content.Intent;   
    import android.media.MediaRecorder;   
    import android.net.Uri;   
    import android.os.Environment;   
    import android.os.Handler;   
    import android.os.Message;   
    import android.telephony.PhoneStateListener;   
    import android.telephony.TelephonyManager;   
    import android.util.Log;   
    import android.widget.Toast;   
       
    /**  
     *   
     * @author JD 功能:打电话，录音，通话时间  
     *   
     */   
    public class TeleInterface {   
       
      private String TAG = "TeleInterface";   
      private Context activity;   
      private Handler handler;   
      private Calendar calendar;   
      private String teleStartTime;   
      private String teleEndTime;   
      private TelephonyManager telephonyManager;   
      public static int TELE_START_TIME = 5;   
      public static int TELE_END_TIME = 6;   
       
      public String getTeleStartTime() {   
        return teleStartTime;   
      }   
       
      public String getTeleEndTime() {   
        return teleEndTime;   
      }   
       
      /**  
       * 构造函数  
       *   
       * @param activity  
       * @param handler 自定义handler接收消息 msg.what 5:电话拨通时间 6:电话挂断时间  
       */   
      public TeleInterface(Context activity, Handler handler) {   
        this.activity = activity;   
        this.handler = handler;   
      }   
       
      /**  
       * 拨打电话  
       *   
       * @param phoneNum 需要拨打号码  
       */   
      public void Call(String phoneNum) {   
        if (phoneNum.length() != 0) {   
          Intent phoneIntent = new Intent("android.intent.action.CALL", Uri.parse("tel:" + phoneNum));   
          activity.startActivity(phoneIntent);   
        } else {   
          Toast.makeText(activity, "不能输入为空", Toast.LENGTH_LONG).show();   
        }   
      }   
       
      /**  
       * 来电监听注册  
       */   
      public void teleListen() {   
        telephonyManager = (TelephonyManager) activity.getSystemService(Context.TELEPHONY_SERVICE);// 注册监听器   
       
        telephonyManager.listen(new PhoneListener(), PhoneStateListener.LISTEN_CALL_STATE);// 监听电话状态   
      }   
       
      /**  
       * 挂断电话  
       *   
       * @throws Exception  
       */   
      public void endCall() throws Exception {   
        ITelephony iTelephony = PhoneUtils.getITelephony(telephonyManager);   
        iTelephony.endCall();// 自动挂断电话   
      }   
       
       
      private final class PhoneListener extends PhoneStateListener {   
        private String incomeNumber; // 来电号码   
        private MediaRecorder mediaRecorder;   
        private File root_file, file;   
       
        @Override   
        public void onCallStateChanged(int state, String incomingNumber) {   
          try {   
            switch (state) {   
              case TelephonyManager.CALL_STATE_RINGING: // 来电   
                this.incomeNumber = incomingNumber;   
                break;   
              case TelephonyManager.CALL_STATE_OFFHOOK: // 接通电话   
                calendar = Calendar.getInstance();   
                teleStartTime = calendar.getTime().toString();   
       
                String root_directory = Environment.getExternalStorageDirectory() + "/recorded_calls";   
                root_file = new File(root_directory);   
                if (!root_file.exists()) {   
                  root_file.mkdir();   
                }   
                if(this.incomeNumber==null){   
                    this.incomeNumber = "call";   
                }   
                String record_call =   
                    root_directory + "/" + this.incomeNumber + "_" + System.currentTimeMillis()   
                        + ".amr";   
                file = new File(record_call);   
                if (!file.exists()) {   
                  file.createNewFile();   
                }   
       
                mediaRecorder = new MediaRecorder();   
                mediaRecorder.setAudioSource(MediaRecorder.AudioSource.VOICE_CALL); // 获得声音数据源   
                mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.DEFAULT); // 格式输出   
                mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.DEFAULT);   
                mediaRecorder.setOutputFile(file.getAbsolutePath()); // 输出文件   
                mediaRecorder.prepare(); // 准备   
       
                mediaRecorder.start();   
       
                Log.d(TAG, "开始录音！");   
       
                Message msg_start = new Message();   
                msg_start.what = TELE_START_TIME;   
                msg_start.obj = teleStartTime;   
       
                Log.d(TAG, "StartTime=====" + teleStartTime);   
       
                handler.sendMessage(msg_start);   
                break;   
       
              case TelephonyManager.CALL_STATE_IDLE: // 挂掉电话   
                if (mediaRecorder != null) {   
                  mediaRecorder.stop();   
                  mediaRecorder.release();   
                  mediaRecorder = null;   
       
                  calendar = Calendar.getInstance();   
                  teleEndTime = calendar.getTime().toString();   
                  Message msg_end = new Message();   
                  msg_end.what = TELE_END_TIME;   
                  msg_end.obj = teleEndTime;   
       
                  Log.d(TAG, "EndTime=====" + teleEndTime);   
       
                  handler.sendMessage(msg_end);   
                }   
                Log.d(TAG, "结束录音！");   
                break;   
       
            }   
          } catch (IllegalStateException e) {   
            // TODO Auto-generated catch block   
            e.printStackTrace();   
          } catch (IOException e) {   
            // TODO Auto-generated catch block   
            e.printStackTrace();   
          }   
        }   
      }    
    }  

1. 二、activity使用 

import android.app.Activity;   
import android.os.Bundle;   
import android.view.Menu;   
import android.view.View;   
import android.view.View.OnClickListener;   
import android.widget.Button;   
import android.widget.EditText;   
import android.widget.TextView;   
   
public class MainActivity extends Activity implements OnClickListener {   
   
  private TextView teleStartTime, teleEndTime;   
  private Button teleButton;   
  private TeleInterface teleInterface;   
  private TeleHandler teleHandler;   
  private EditText telNo;   
   
  @Override   
  protected void onCreate(Bundle savedInstanceState) {   
    super.onCreate(savedInstanceState);   
    setContentView(R.layout.activity_main);   
    initView();   
    teleHandler = new TeleHandler(this, teleStartTime, teleEndTime);   
    teleInterface = new TeleInterface(this, teleHandler);   
    teleInterface.teleListen();   
  }   
   
   
  private void initView() {   
    teleStartTime = (TextView) findViewById(R.id.teleStartTime);   
    teleEndTime = (TextView) findViewById(R.id.teleEndTime);   
    teleButton = (Button) findViewById(R.id.teleButton);   
    telNo = (EditText) findViewById(R.id.telno);   
    teleButton.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 void onClick(View v) {   
    switch (v.getId()) {   
      case R.id.teleButton:   
            if(!telNo.getText().toString().trim().equals("")){   
                 teleInterface.Call(telNo.getText().toString().trim());   
            }else{   
                 teleInterface.Call("10010");   
            }   
              
               
            try {   
//              Thread.sleep(5000);   
//              teleInterface.sendDTMF("1".toCharArray()[0]);   
              teleInterface.endCall();   
            } catch (Exception e) {   
              // TODO Auto-generated catch block   
              e.printStackTrace();   
            }   
            break;   
   
      default:   
        break;   
    }   
  }   
   
}  

三、布局配置文件

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"   
    xmlns:tools="http://schemas.android.com/tools"   
    android:layout_width="fill_parent"   
    android:layout_height="wrap_content"   
    android:orientation="vertical"   
    tools:context=".MainActivity" >   
       
    <EditText    
        android:layout_width="fill_parent"   
        android:layout_height="wrap_content"   
        android:id="@+id/telno"   
        android:numeric="integer"   
        android:hint="电话号码"/>   
       
    <Button   
        android:id="@+id/teleButton"   
        android:layout_width="wrap_content"   
        android:layout_height="wrap_content"   
        android:text="拨号" />   
   
    <TextView   
        android:layout_width="wrap_content"   
        android:layout_height="wrap_content"   
        android:text="通话时间：" />   
   
    <TextView   
        android:id="@+id/teleStartTime"   
        android:layout_width="wrap_content"   
        android:layout_height="wrap_content" />   
   
    <TextView   
        android:layout_width="wrap_content"   
        android:layout_height="wrap_content"   
        android:text="结束时间：" />   
   
    <TextView   
        android:id="@+id/teleEndTime"   
        android:layout_width="wrap_content"   
        android:layout_height="wrap_content" />   
   
</LinearLayout>