最近 经过一段时间研究了Android来去电并且录音的研究,特此作为记录
首先监听来去电并且可以录音得有以下权限:
//录音权限<uses-permission android:name="android.permission.RECORD_AUDIO" /><uses-permission android:name="android.permission.CAPTURE_AUDIO_OUTPUT" /><!-- 要存储文件或者创建文件夹的话还需要以下两个权限 --><uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS" /><uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /><uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS" />//读取系统日志<uses-permission android:name="android.permission.READ_LOGS" />
前置条件,如果有录制双向声音的需求,必须手机获取root权限,且应用作为系统应用才可,因为CAPTURE_AUDIO_OUTPUT,READ_LOGS必须是系统级应用才可以。网上很多方案说配置文件加sharedid什么的然后用系统签名apk文件,各位看官这都是扯蛋。实现难度太大,去哪整每个系统的签名?如果已经获取了root权限 完全可以代码内判断/system/priv-app文件夹下是否存在自己应用文件夹是否存在,不存在移动整个文件夹到/system/priv-app,然后代码执行重启手机命令后您的应用就是系统级应用了。此处就不进行代码叙述,重点讲述来去电监听。
流程:首先建立service开启监听来去电服务,用TelephonyManager提供的PhoneStateListener监听来电接通状态跟电话挂断状态。用广播监听去电开始(未接通)的状态。当开始去电时,开启线程读取系统日志,当获取到去电接通的日志(不同机型日志不同)时返回去电接通状态。以上是我来去电状态获取的流程。在来去电接通时开启录音,电话挂断监听处停止录音即可。
一、建立service开启监听
private TelephonyManager mTelephonyManager;private CallListener mCallListener = new CallListener(new CallListener.OnIncomingListener() {@Overridepublic void incomingOn(String number) {//来电接通,开启录音startRecord(number)}}, new TelListener.OnCallOffStateListener() {@Overridepublic void off() {//电话挂断,不分来去电,停止录音stopRecord()}});@Overridepublic void onCreate() {super.onCreate();mTelephonyManager = (TelephonyManager) this.getSystemService(Context.TELEPHONY_SERVICE);mTelephonyManager.listen(mCallListener, PhoneStateListener.LISTEN_CALL_STATE);}@Overridepublic int onStartCommand(Intent intent, int flags, int startId) {if ("outgoingAction".equals(intent.getAction())) {String number = intent.getStringExtra("outgoingNumber");//开启读取日志,获取去电状态if (mOutGoingLogThread == null) {mOutGoingLogThread = new OutGoingLogThread(CallService.this, new OutGoingLogThread.OutGoingListener() {@Overridepublic void outGoingOn() {//去电接通了 开启录音startRecord(number)}});}mOutGoingLogThread.start();}return START_REDELIVER_INTENT;}
二、来电监听:
public class CallListener extends PhoneStateListener {//上个电话状态,当上个状态为响铃,当前状态为OFFHOOK时即为来电接通private int mLastState = TelephonyManager.CALL_STATE_IDLE;private OnIncomingListener mOnIncomingListener;private OnCallOffListener mOnCallOffListener;//来电号码private String mIncomingNumber;public TelListener(OnIncomingListener listener, OnCallOffListener callOffistener) {this.mOnIncomingListener = listener;this.mOnCallOffListener = callOffListener;}@Overridepublic void onCallStateChanged(int state, String incomingNumber) {switch (state) {case TelephonyManager.CALL_STATE_IDLE: // 空闲状态,即无来电也无去电if (mLastState == TelephonyManager.CALL_STATE_OFFHOOK&&mOnCallOffListener!=null) {mOnCallOffListener.off();}break;case TelephonyManager.CALL_STATE_RINGING: // 来电响铃mIncomingNumber = String.valueOf(incomingNumber);break;case TelephonyManager.CALL_STATE_OFFHOOK: // 摘机,即接通//此处添加一系列功能代码if (mLastState == TelephonyManager.CALL_STATE_RINGING && mOnIncomingListener != null) {mOnIncomingListener.incomingOn(mIncomingNumber);}break;}mLastState = state;super.onCallStateChanged(state, incomingNumber);}//来电接通 public interface OnIncomingListener { void incomingOn(String number); } //电话挂断监听,不分来去电 public interface OnCallOffListener { void Off(); }}
三、去电监听:
开启广播:
public class OutGoingReceiver extends BroadcastReceiver {@Overridepublic void onReceive(Context context, Intent intent) {//只获取去电广播if (intent.getAction().equals(Intent.ACTION_NEW_OUTGOING_CALL)) {String number = intent.getExtras().getString(Intent.EXTRA_PHONE_NUMBER);Intent intent1 = new Intent();intent1.putExtra("outgoingNumber", number);intent1.setAction("outgoingAction");intent1.setClass(context, CallService.class);context.startService(intent1);}}}
去电日志获取线程:
//系统通话信息的TAG,不同机型TAG不同,自己获取public final static String LOG_TAG="your phone system phone call tag";//日志里接通的信息,不同机型信息不同,自己研究获取public final static String OUTGOING_ON="call_state = 5";
public void run() { mIsRunning = true; Process process = null; BufferedReader bufferReader=null; try { //此处尤为注意!!!读取日志前如果不清理日志,会获取缓存区域的日志,导致不是最新实时日志,影响本次判断 //网上很多清理日志时没调用waitFor(),经测试根本无法及时清理日志,所以必须调用 Runtime.getRuntime().exec("logcat -c").waitFor(); //获取系统指定TAG日志 String cmd = "logcat -b system -s "+LOG_TAG; process = Runtime.getRuntime().exec(cmd); bufferReader = new BufferedReader(new InputStreamReader(process.getInputStream())); String line = null; while (mIsRunning && (line = bufferReader.readLine()) != null) { if (line.contains(OUTGOING_ON)) { if (mOutGoingListener != null) { mOutGoingListener.outGoingOn(); } mIsRunning = false; Log.d(TAG, "去电接通"); } } } catch (IOException e) { } catch (InterruptedException e) { } finally { try { if (bufferReader != null) { bufferReader.close(); } if (process != null) { process.destroy(); } } catch (IOException e) { } } }@Override
四:总结
以上就是本次来去电状态获取的部分代码,其中注释部分尤为注意,就是我掉进去的坑。其中没叙述录音的实现,网上借助mediarecoder很多录音方法,此处不在叙述