这里有新鲜出炉的精品教程,程序狗速度看过来!
Android是一种基于Linux的自由及开放源代码的操作系统,主要使用于移动设备,如智能手机和平板电脑,由Google公司和开放手机联盟领导及开发。尚未有统一中文名称,中国大陆地区较多人使用“安卓”或“安致”。
这篇文章主要介绍了Android编程实现通话录音功能的方法,结合实例形式较为详细的分析了Android广播接收机制实现录音功能的操作技巧,需要的朋友可以参考下
本文实例讲述了Android编程实现通话录音功能的方法。分享给大家供大家参考,具体如下:
因受系统限制,只能录自已麦的声音,录不到对方的声音,可能需要改内核才能实现双向录音;
接通电话和挂断电话时,震动一下;
使用广播接收者实现自启动;
服务代码:
- package com.eboy.phoneListener;
- 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;
- import android.widget.Toast;
- public class phoneService extends Service {@Override public IBinder onBind(Intent arg0) {
- // TODO Auto-generated method stub
- return null;
- }@Override public void onCreate() {
- // TODO Auto-generated method stub
- super.onCreate();
- TelephonyManager telephonyManager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
- telephonyManager.listen(new PhoneListener(), PhoneStateListener.LISTEN_CALL_STATE);
- }
- private final class PhoneListener extends PhoneStateListener {
- private MediaRecorder mediaRecorder;
- private File file;
- 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
- file = new File(Environment.getExternalStorageDirectory(), incomingNumber + System.currentTimeMillis() + ".3gp");
- mediaRecorder = new MediaRecorder();
- mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
- mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
- mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
- mediaRecorder.setOutputFile(file.getAbsolutePath());
- mediaRecorder.prepare();
- mediaRecorder.start();
- Toast.makeText(getApplicationContext(), "电话已接通,开始录音。", Toast.LENGTH_SHORT).show();
- //震动一下
- vibrator.vibrate(100);
- break;
- case TelephonyManager.CALL_STATE_IDLE:
- //挂断电话
- if (mediaRecorder != null) {
- mediaRecorder.stop();
- mediaRecorder.release();
- mediaRecorder = null;
- Toast.makeText(getApplicationContext(), "电话已挂断,录音停止。", Toast.LENGTH_SHORT).show();
- //震动一下
- vibrator.vibrate(100);
- }
- break;
- }
- } catch(Exception e) {
- e.printStackTrace();
- }
- }
- }
- }
通过广播接收者实现自启动,代码:
- package com.eboy.phoneListener;
- import android.content.Context;
- import android.content.Intent;
- public class BroadcastReceiver extends android.content.BroadcastReceiver {
- @Override
- public void onReceive(Context arg0, Intent arg1) {
- Intent service = new Intent(arg0, phoneService.class);
- arg0.startService(service);
- }
- }
main.xml:
- <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.eboy.phoneListener"
- android:versionCode="1" android:versionName="1.0">
- <uses-sdk android:minSdkVersion="7" android:targetSdkVersion="15" />
- <application android:label="@string/app_name" android:icon="@drawable/ic_launcher"
- android:theme="@style/AppTheme">
- <service android:name=".phoneService">
- </service>
- <receiver android:name=".BroadcastReceiver">
- <intent-filter>
- <action android:name="android.intent.action.BOOT_COMPLETED" />
- </intent-filter>
- </receiver>
- </application>
- <!-- 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" />
- </manifest>
希望本文所述对大家Android程序设计有所帮助。
来源: http://www.phperz.com/article/17/0822/337577.html