Android电话录音

Android电话录音

本例是一个通用的电话录音方案，先创建一个广播接收，

package zhangphil.phonerecorder;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;

public class PhoneBroadcastReceiver extends BroadcastReceiver {// BroadcastReceiver

	@Override
	public void onReceive(Context context, Intent intent) {
		// 外拨电话
		if (intent.getAction().equals(Intent.ACTION_NEW_OUTGOING_CALL)) {
			System.out.println(Intent.ACTION_NEW_OUTGOING_CALL);

			// 获得外拨号码
			String EXTRA_PHONE_NUMBER = intent.getStringExtra(Intent.EXTRA_PHONE_NUMBER);
			Log.d(this.getClass().getName(), EXTRA_PHONE_NUMBER);

			// 开始启动后台服务录音
			Intent service = new Intent(context, PhoneService.class);
			context.startService(service);
		}
	}
}

注册到AndroidManifest.xml里面，然后开机启动（通过设置广播过滤器）：

<action android:name="android.intent.action.BOOT_COMPLETED" />

同时增加外拨电话的广播过滤器：

<action android:name="android.intent.action.NEW_OUTGOING_CALL" />

只要有外拨电话就启动后台服务，然后录制通话录音。录音文件存放在SD卡的根目录下。全程将使用PhoneStateListener监听电话通话状态，通话开始然后就开启MediaRecorder录音，通话结束，然后就使MediaRecorder停止录音。

package zhangphil.phonerecorder;

import java.io.File;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.media.MediaRecorder;
import android.os.Environment;
import android.os.IBinder;
import android.os.Vibrator;
import android.telephony.PhoneStateListener;
import android.telephony.TelephonyManager;

public class PhoneService extends Service {

	private File file;

	// 录音的格式
	private String fileName = "zhangphil.3gp";

	@Override
	public IBinder onBind(Intent intent) {
		return null;
	}

	@Override
	public void onCreate() {
		super.onCreate();

		String path = Environment.getExternalStorageDirectory().getAbsolutePath();
		file = new File(path, fileName);

		TelephonyManager telephonyManager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
		telephonyManager.listen(new MyPhoneListener(), PhoneStateListener.LISTEN_CALL_STATE);
	}

	private class MyPhoneListener extends PhoneStateListener {
		private MediaRecorder mediaRecorder;

		// 震动
		private Vibrator vibrator = (Vibrator) getSystemService(VIBRATOR_SERVICE);

		@Override
		public void onCallStateChanged(int state, String incomingNumber) {
			try {
				switch (state) {
				case TelephonyManager.CALL_STATE_RINGING: // 来电
					break;

				case TelephonyManager.CALL_STATE_OFFHOOK: // 接通电话
					startRecordPhoneSound();
					break;

				// 没有通话（通话结束）
				case TelephonyManager.CALL_STATE_IDLE:
					if (mediaRecorder != null) {
						mediaRecorder.stop();
						mediaRecorder.release();
						mediaRecorder = null;

						// 震动
						vibrator.vibrate(100);
					}

					break;
				}

			} catch (Exception e) {
				e.printStackTrace();
			}
		}

		private void startRecordPhoneSound() {
			mediaRecorder = new MediaRecorder();

			// 这里选麦克风作为录音的声源
			mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);

			mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
			mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);

			// 录音文件的存放位置
			mediaRecorder.setOutputFile(file.getAbsolutePath());

			try {
				mediaRecorder.prepare();
			} catch (Exception e) {
				e.printStackTrace();
			}

			mediaRecorder.start();

			// 震动
			vibrator.vibrate(100);
		}
	}
}

需要注意的是，这个电话录音，是通过麦克风录制通话录音的，录制的效果一般。

AndroidManifest.xml文件：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="zhangphil.phonerecorder"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="14"
        android:targetSdkVersion="23" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
       
        
         <service android:name=".PhoneService" >
        </service>

        <receiver android:name=".PhoneBroadcastReceiver" >
            <intent-filter>
                <action android:name="android.intent.action.NEW_OUTGOING_CALL" />
                <action android:name="android.intent.action.BOOT_COMPLETED" />
            </intent-filter>
        </receiver>
        
    </application>

  
    <uses-permission android:name="android.permission.READ_PHONE_STATE" >
    </uses-permission>
    
     <!-- 拨打电话权限 -->
    <uses-permission android:name="android.permission.CALL_PHONE" />
    <!-- 读取电话状态权限 -->
    <uses-permission android:name="android.permission.READ_PHONE_STATE" />
    <!-- SD卡读写权限 -->
    <uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <!-- 录音权限 -->
    <uses-permission android:name="android.permission.RECORD_AUDIO" />
    <!-- 震动权限 -->
    <uses-permission android:name="android.permission.VIBRATE" />
    <uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS" />
    
</manifest>