BroadcastReceiver实现android来去电录音功能（外录）

因为原生android没有提供来去电内录功能，所以只能通过麦克进行通话录音，

/***来去电录音，因为去电没有接听的状态，只要拨出就会开始录音**@authorjauken*@date2015-1-4*/publicclassPhoneBroadcastReceiverextendsBroadcastReceiver{privatestaticStringoutgoingNumber="";privatestaticStringincomeNumber="";privateStringstate="";privatestaticMediaRecordermediaRecorder;@OverridepublicvoidonReceive(Contextcontext,Intentintent){/*去电时：*未接：phone_state=OFFHOOK;*挂断：phone_state=IDLE*来电时:**未接：phone_state=RINGING*已接：phone_state=OFFHOOK;*挂断：phone_state=IDLE**///如果是拨打电话if(intent.getAction().equals(Intent.ACTION_NEW_OUTGOING_CALL)){outgoingNumber=intent.getStringExtra(Intent.EXTRA_PHONE_NUMBER);}if(intent.getAction().equals("android.intent.action.PHONE_STATE")){state=intent.getStringExtra(TelephonyManager.EXTRA_STATE);if("RINGING".equals(state)){incomeNumber=intent.getStringExtra(TelephonyManager.EXTRA_INCOMING_NUMBER);}if("OFFHOOK".equals(state)){//来电接通或去电（无法判断是否接通），开始录音ThreadrecordingThread=newThread(){@Overridepublicvoidrun(){try{FiledirFile=Environment.getExternalStorageDirectory();Filefile;//根据用来电号码是否为空判断来去电if(incomeNumber!=null&&incomeNumber.length()>0){file=newFile(dirFile,"IN_"+incomeNumber+"_"+System.currentTimeMillis()+".3gp");}else{file=newFile(dirFile,"OUT_"+outgoingNumber+"_"+System.currentTimeMillis()+".3gp");}mediaRecorder=newMediaRecorder();mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);//获得声音数据源mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);//按3gp格式输出mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);mediaRecorder.setOutputFile(file.getAbsolutePath());//输出文件mediaRecorder.prepare();mediaRecorder.start();}catch(IllegalStateExceptione){//TODOAuto-generatedcatchblocke.printStackTrace();}catch(IOExceptione){//TODOAuto-generatedcatchblocke.printStackTrace();}//准备}};recordingThread.start();}if("IDLE".equals(state)){//挂断，停止录音if(mediaRecorder!=null){mediaRecorder.stop();mediaRecorder.reset();mediaRecorder.release();mediaRecorder=null;outgoingNumber="";incomeNumber="";}}}}}

<receiverandroid:name="com.test.recordphone.PhoneBroadcastReceiver"><intent-filter><actionandroid:name="android.intent.action.PHONE_STATE"/><actionandroid:name="android.intent.action.NEW_OUTGOING_CALL"/></intent-filter></receiver>

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