????46. ?????м?????????Щ????к???????????Android?????????????? Android??????(?????????)

??????android?￡?????????????????????????????????????????????????????BroadcastReceiver???????????????????????и????????????????????????дBroadcastReceiver?????onReceiver?????????????????????????????????????????????????????????????????????????????

 ????public class SmsBroadCastReceiverextends BroadcastReceiver

????{

????@Override

????public void onReceive(Context context?? Intent intent)

????{

????Bundle bundle = intent.getExtras();

????Object[] object = (Object[])bundle.get("pdus");

????SmsMessage sms[]=new SmsMessage[object.length];

????for(int i=0;i

????{

????sms[0] =SmsMessage.createFromPdu((byte[])object);

????Toast.makeText(context?? "????"+sms.getDisplayOriginatingAddress()+"????????"+sms.getDisplayMessageBody()??Toast.LENGTH_SHORT).show();

????}

????//??????????????????????????????????????????????????????????

????abortBroadcast();

????}

????}

??????????????????????????ù?????????????????????????????????android.provider.Telephony.SMS_RECEIVED

???????????????????????????棬????????????????и??????????????????????????????????

????//?????????

????smsBroadCastReceiver = newSmsBroadCastReceiver();

????//????????????????????????

????IntentFilter intentFilter = newIntentFilter("android.provider.Telephony.SMS_RECEIVED");

????//????

????BroadCastReceiverActivity.this.registerReceiver(smsBroadCastReceiver??intentFilter);

???????????AndroidManifest.xml?????ù?

????package="spl.broadCastReceiver"

????android:versionCode="1"

????android:versionName="1.0">

????android:label="@string/app_name">

???????????????????????

????1)??????????????????????????????????????

????2)????????????????????ó???????????????????????????????????????С?

????47. ??????????????????Message??Handler??MessageQueue??Looper????????Handler??飺

???????Handler????????????Message??Runable??????Щ????????????MessageQueue????????????????????????????????????????MessageQueue?????????????????μ?Handler??????????????????????????????????????????????????MessageQueue?????????????????Handler??Message??Runable???????MessageQueue??????????Щ??????MessageQueue???Handler????????????

????Handler????????????????(1)????????????????????????????ЩMessage??Runnable????(2)?????????(????Handler?????)???????Щ???е??????

????Scheduling Message????(1)????????????·???????

????post(Runnable):Runnable??handler???????????У?????????????????

????postAtTime(Runnable??long):

????postDelayed(Runnable??long):

????sendEmptyMessage(int):

????sendMessage(Message):

????sendMessageAtTime(Message??long):

????sendMessageDelayed(Message??long):

????post????????????Runnable????????MessageQueue??MessageQueue?????Щ??????????????????????????????sendMessage??????????????Message?????????У???ЩMessage????????Щ?????Handler??hanlerMessage(Message)??????ЩMessage.?????handlerMessage(Message)??????Handler??????????д?????????????????????

??????posting????sending?????Hanler?????????????????????MessageQueue??????????????????????????????????????????????????????????timeout??tick????????????????