1 package com.example.day16_03phonerecorder;
2
3 import android.app.Activity;
4 import android.content.Intent;
5 import android.os.Bundle;
6
7 public class MainActivity extends Activity {
8
9 @Override
10 protected void onCreate(Bundle savedInstanceState) {
11 super.onCreate(savedInstanceState);
12 setContentView(R.layout.activity_main);
13
14 Intent intent = new Intent(this, MyPhoneRecordService.class);
15 startService(intent);
16 }
17 }
1 package com.example.day16_03phonerecorder;
2
3 import java.io.IOException;
4
5 import android.app.Service;
6 import android.content.Intent;
7 import android.media.MediaRecorder;
8 import android.media.MediaRecorder.AudioEncoder;
9 import android.media.MediaRecorder.AudioSource;
10 import android.media.MediaRecorder.OutputFormat;
11 import android.os.IBinder;
12 import android.telephony.PhoneStateListener;
13 import android.telephony.TelephonyManager;
14
15 public class MyPhoneRecordService extends Service {
16
17 MediaRecorder mMediaRecorder;
18 boolean recordflag =false;
19 @Override
20 public IBinder onBind(Intent intent) {
21 // TODO Auto-generated method stub
22 return null;
23 }
24
25 @Override
26 public void onCreate() {
27 // TODO Auto-generated method stub
28 super.onCreate();
29 System.out.println("MyPhoneRecordService.onCreate()");
30 }
31
32 @Override
33 public int onStartCommand(Intent intent, int flags, int startId) {
34 // TODO Auto-generated method stub
35 System.out.println("MyPhoneRecordService.onStartCommand()");
36
37 //服务里要监听电话的状态
38 // 1，如果发现电话接通--》就是开始录音
39 // 2.如果发现电话挂断 --》就停止录音
40 TelephonyManager telephonyManager = (TelephonyManager) getSystemService(TELEPHONY_SERVICE);
41 telephonyManager.listen(new MyphoneStateListener(), PhoneStateListener.LISTEN_CALL_STATE);
42 return super.onStartCommand(intent, flags, startId);
43 }
44
45 @Override
46 public void onDestroy() {
47 // TODO Auto-generated method stub
48 super.onDestroy();
49 System.out.println("MyPhoneRecordService.onDestroy()");
50 }
51
52 class MyphoneStateListener extends PhoneStateListener{
53 /*
54 *//** Device call state: No activity. *//*
55 public static final int CALL_STATE_IDLE = 0;
56 *//** Device call state: Ringing. A new call arrived and is
57 * ringing or waiting. In the latter case, another call is
58 * already active. *//*
59 public static final int CALL_STATE_RINGING = 1;
60 *//** Device call state: Off-hook. At least one call exists
61 * that is dialing, active, or on hold, and no calls are ringing
62 * or waiting. *//*
63 public static final int CALL_STATE_OFFHOOK = 2;*/
64
65
66 @Override
67 public void onCallStateChanged(int state, String incomingNumber) {
68 // TODO Auto-generated method stub
69 super.onCallStateChanged(state, incomingNumber);
70 switch (state) {
71 case 0:
72 if (recordflag) {
73 //停止录音
74 // 8. 停止录音
75 mMediaRecorder.stop();
76 // 9. 释放资源
77 mMediaRecorder.release();
78 recordflag=false;
79 }
80 System.out
81 .println("MyPhoneRecordService.MyphoneStateListener.onCallStateChanged()电话挂断");
82 break;
83 case 1:
84 System.out
85 .println("MyPhoneRecordService.MyphoneStateListener.onCallStateChanged()正在响铃");
86
87 break;
88 case 2:
89 //开始录音
90 // 1. 创建一个MediaRecorder对象
91 mMediaRecorder = new MediaRecorder();
92 // 2. 设置音频源
93 mMediaRecorder.setAudioSource(AudioSource.MIC);
94 // 3. 设置输出格式
95 mMediaRecorder.setOutputFormat(OutputFormat.THREE_GPP);
96 // 4. 设置输出文件的名字
97 mMediaRecorder.setOutputFile(getFilesDir()+"/record.3pg");
98 // 5. 设置音频编码
99 mMediaRecorder.setAudioEncoder(AudioEncoder.DEFAULT);
100 // 6. 准备以下, 马上开始录音
101 try {
102 mMediaRecorder.prepare();
103 } catch (IllegalStateException e) {
104 // TODO Auto-generated catch block
105 e.printStackTrace();
106 } catch (IOException e) {
107 // TODO Auto-generated catch block
108 e.printStackTrace();
109 }
110 // 7. 开始录音
111 mMediaRecorder.start(); // 录音开始了...
112 recordflag=true;
113
114 System.out
115 .println("MyPhoneRecordService.MyphoneStateListener.onCallStateChanged()正在通话");
116
117 break;
118
119 default:
120 break;
121 }
122 }
123 }
124 }
1 <?xml version="1.0" encoding="utf-8"?> 2 <manifest xmlns:android="http://schemas.android.com/apk/res/android" 3 package="com.example.day16_03phonerecorder" 4 android:versionCode="1" 5 android:versionName="1.0" > 6 7 <uses-sdk 8 android:minSdkVersion="14" 9 android:targetSdkVersion="19" /> 10 <uses-permission android:name="android.permission.READ_PHONE_STATE"/> 11 <uses-permission android:name="android.permission.RECORD_AUDIO"/> 12 13 <application 14 android:allowBackup="true" 15 android:icon="@drawable/ic_launcher" 16 android:label="@string/app_name" 17 android:theme="@style/AppTheme" > 18 <activity 19 android:name=".MainActivity" 20 android:label="@string/app_name" > 21 <intent-filter> 22 <action android:name="android.intent.action.MAIN" /> 23 24 <category android:name="android.intent.category.LAUNCHER" /> 25 </intent-filter> 26 </activity> 27 <service android:name=".MyPhoneRecordService"></service> 28 </application> 29 30 </manifest>
录音文件保存在/data/data/com.example.day16_03phonerecorder 下
时间： 2024-12-11 16:29:34