Android:BroadcastReceiver:采用广播接收者拦截外拔电话、发送广播、其他常用广播、特性
publicclassPhoneBroadcastReceiverextendsBroadcastReceiver{@OverridepublicvoidonReceive(Contextcontext,Intentintent){Stringnumber=getResultData();if("5556".equals(number)){setResultData(null);//清除电话号码,