1创建Service
package com.shiliu.callrecording;
import android.annotation.SuppressLint;
import android.annotation.TargetApi;
import android.app.Notification;
import android.app.NotificationChannel;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.graphics.Color;
import android.media.FaceDetector;
import android.media.MediaPlayer;
import android.media.MediaRecorder;
import android.os.Binder;
import android.os.Build;
import android.os.Environment;
import android.os.IBinder;
import android.support.annotation.RequiresApi;
import android.support.v4.app.NotificationCompat;
import android.support.v4.app.TaskStackBuilder;
import android.telephony.PhoneStateListener;
import android.telephony.TelephonyManager;
import android.util.Log;
import android.widget.Toast;
import com.vondear.rxtool.view.RxToast;
import java.io.File;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import static android.support.v4.app.NotificationCompat.PRIORITY_MAX;
/**
* Created by Easzz on 2015/12/6.
*/
public class RecorderServiceextends Service {
private MediaRecorderrecorder;//录音的一个实例
//通过binder实现调用者client与Service之间的通信
private NotificationCompat.Builderbuilder;
private NotificationManagernotificationManager;
private boolean isFirst =true;
public RecorderService() {
}
@Override
public void onCreate() {
super.onCreate();
//如果API在26以上即版本为O则调用startForefround()方法启动服务
// if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
setForegroundService();
// }else {
//
// }
}
/**
* 通过通知启动服务
*/
public void setForegroundService() {
//设定的通知渠道名称
String channelName = getString(R.string.channel_name);
final String CHANNEL_ID ="com.appname.notification.channel";
//设置通知的重要程度
int importance = NotificationManager.IMPORTANCE_LOW;
Intent mIntent =new Intent(this, MainActivity.class);
PendingIntent pendingIntent = PendingIntent.getActivity(this,0, mIntent,0);
//在创建的通知渠道上发送通知
builder =new NotificationCompat.Builder(this, CHANNEL_ID);
builder.setSmallIcon(R.mipmap.ic_launcher)//设置通知图标
.setContentTitle("电话监听")//设置通知标题
.setContentText("警告您的电话正在接受监听")//设置通知内容
.setAutoCancel(true)//用户触摸时，自动关闭
.setContentIntent(pendingIntent)
.setOngoing(true);//设置处于运行状态
//向系统注册通知渠道，注册后不能改变重要性以及其他通知行为
notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
//构建通知渠道
NotificationChannel channel =null;
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
channel =new NotificationChannel(CHANNEL_ID, channelName, importance);
channel.setDescription("录音");
notificationManager.createNotificationChannel(channel);
}
//将服务置于启动状态 NOTIFICATION_ID指的是创建的通知的ID
startForeground(11,builder.build());
}
@Override
public int onStartCommand(Intent intent,int flags,int startId) {
TelephonyManager tm = (TelephonyManager) getSystemService(TELEPHONY_SERVICE);
//// //启动监听.传入一个listener和监听的事件,
tm.listen(new MyListener(), PhoneStateListener.LISTEN_CALL_STATE);
return START_STICKY;
}
@Override
public void onDestroy() {
super.onDestroy();
Log.e("TAG","service onDestroy");
notificationManager.cancel(11);
}
@Override
public IBinder onBind(Intent intent) {
return null;
}
class MyListenerextends PhoneStateListener {
//在电话状态改变的时候调用
@Override
public void onCallStateChanged(int state, String incomingNumber) {
super.onCallStateChanged(state, incomingNumber);
switch (state) {
case TelephonyManager.CALL_STATE_IDLE:
//空闲状态
// RxToast.showToast("通话中");
if (isFirst) {
Toast.makeText(RecorderService.this,"开始录音", Toast.LENGTH_SHORT).show();
isFirst =false;
}else {
Toast.makeText(RecorderService.this,"挂断电话", Toast.LENGTH_SHORT).show();
}
if (recorder !=null) {
recorder.stop();//停止录音
recorder.release();//释放资源
recorder =null;
}
break;
case TelephonyManager.CALL_STATE_RINGING:
Log.e("TAG","拨入电话,铃声响起");
Toast.makeText(RecorderService.this,"拨入电话,铃声响起", Toast.LENGTH_SHORT).show();
// //响铃状态 需要在响铃状态的时候初始化录音服务
if (recorder ==null) {
recorder =new MediaRecorder();//初始化录音对象
recorder.setAudioSource(MediaRecorder.AudioSource.MIC);//设置录音的输入源(麦克)
recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);//设置音频格式(3gp)
createRecorderFile();//创建保存录音的文件夹
recorder.setOutputFile("sdcard/recorder" +"/" + getCurrentTime() +".3gp");//设置录音保存的文件
recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);//设置音频编码
try {
recorder.prepare();//准备录音
}catch (IOException e) {
e.printStackTrace();
}
}
break;
case TelephonyManager.CALL_STATE_OFFHOOK:
Toast.makeText(RecorderService.this,"启动录音", Toast.LENGTH_SHORT).show();
//摘机状态（接听）
if (recorder !=null) {
recorder.start();//接听的时候开始录音
Log.e("TAG","开始录音");
}else {
recorder =new MediaRecorder();//初始化录音对象
recorder.setAudioSource(MediaRecorder.AudioSource.MIC);//设置录音的输入源(麦克)
recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);//设置音频格式(3gp)
recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
createRecorderFile();//创建保存录音的文件夹
recorder.setOutputFile("sdcard/recorder" +"/" + getCurrentTime() +".3gp");//设置录音保存的文件
try {
recorder.prepare();//准备录音
}catch (IOException e) {
e.printStackTrace();
}
recorder.start();//接听的时候开始录音
Log.e("TAG","录音失败");
}
break;
}
}
//创建保存录音的目录
private void createRecorderFile() {
String absolutePath = Environment.getExternalStorageDirectory().getAbsolutePath();
String filePath = absolutePath +"/recorder";
File file =new File(filePath);
if (!file.exists()) {
file.mkdir();
}
}
//获取当前时间，以其为名来保存录音
private String getCurrentTime() {
SimpleDateFormat format =new SimpleDateFormat("yyyyMMddHHmmss");
Date date =new Date();
String str = format.format(date);
return str;
}
}
}
//在需要的地方启动服务
public void btn(View view) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
startForegroundService(intent);
}else {
startService(intent);
}
}
下章是录音文件的读取和播放