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1、在Activity中写一个内部类实现广播的接收：private
class
MyBroadcastReceiver extends
BroadcastReceiver { @Override publicvoid
onReceive(Context context, Intent intent) { Toast.makeText(MainActivity.this,
intent.getStringExtra("back"),
Toast.LENGTH_SHORT).show(); }}2、并在Activity中动态的注册这个监听器：private
BroadcastReceiver rec = null;this.rec
= new
MyBroadcastReceiver();IntentFilter
filter = new
IntentFilter();filter.addAction("org.load.action.MSG");/
这里的Action要和Service发送广播时使用的Action一样MainActivity.this.registerReceiver(this.rec,
filter); //
动态注册BroadcastReceiver 3、在Service中实现广播的发送：ntent
it = new
Intent("org.load.action.MSG");//
这里要直接放Action的参数，不能是指定一个对象和一个class，并且这里的Action要和Service发送广播时使用的Action一样 it.putExtra("back",
this.msg
+ ",来自Service");super.sendBroadcast(it);4、注意：要在Manifest中注册这个Service全部代码：MainActivity.java:publicclass
MainActivity extends
Activity { private
Button but = null; private
BroadcastReceiver rec = null; @Override protectedvoid
onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); this.but
= (Button) super.findViewById(R.id.but); this.but.setOnClickListener(new
OnClickAdapter()); this.rec
= new
MyBroadcastReceiver(); IntentFilter
filter = new
IntentFilter(); filter.addAction("org.load.action.MSG");
//
这里的Action要和Service发送广播时使用的Action一样 MainActivity.this.registerReceiver(this.rec,
filter); //
动态注册BroadcastReceiver } privateclass
OnClickAdapter implements
OnClickListener { @Override publicvoid
onClick(View v) { Intent
intent = new
Intent(MainActivity.this,
MyService.class); intent.setAction("org.load.action.ACT"); intent.putExtra("msg",
"这条消息要通过service返回"); MainActivity.this.startService(intent); }} privateclass
MyBroadcastReceiver extends
BroadcastReceiver { @Override publicvoid
onReceive(Context context, Intent intent) { Toast.makeText(MainActivity.this,
intent.getStringExtra("back"),
Toast.LENGTH_SHORT).show(); } }}MyService.java:publicclass
MyService extends
Service { private
String msg = null; @Override public
IBinder onBind(Intent intent) { returnnull; } @Override publicvoid
onCreate() { super.onCreate(); } @Override publicint
onStartCommand(Intent intent, int
flags, int
startId) { if("org.load.action.ACT".equals(intent.getAction()))
{ this.msg
= intent.getStringExtra("msg"); this.sendBroadcastToActivity(); } returnsuper.onStartCommand(intent,
flags, startId); } @Override publicvoid
onDestroy() { super.onDestroy(); } publicvoid
sendBroadcastToActivity() { Intent
it = new
Intent("org.load.action.MSG"); it.putExtra("back",
this.msg
+ ",来自Service"); super.sendBroadcast(it); }} Manifest.xml:<service
android:name="org.load.test.MyService"
/> |
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原文地址：http://blog.csdn.net/u014311037/article/details/42645991
