Service小结
- 按种类
Local
Remote - 类型
前台（Notification)
后台 - 启动方式
Start
bind - Service与Thread与Process
- Service的生命周期
onCreate
onStart
onBind
onDestory等
AndroidMainfest.xml中的Service
- android:name
- android:label
- android:icon
- android:permission
- android:process
- android:enabled
- android:exported
Service的一些补充知识点
Service>
-
远程服务
Messenger
public class MessengerActivity extends Activity {
private Messenger mMessenger;
private ServiceConnection mServiceConnection = new ServiceConnection() {
// 当与service的连接建立后被调用
@Override
public void onServiceConnected(ComponentName name, IBinder service) {
mMessenger = new Messenger(service);
}
@Override
public void onServiceDisconnected(ComponentName name) {
}
};
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
bindService(new Intent(this, MessengerService.class),mServiceConnection, Context.BIND_AUTO_CREATE);
if(mMessenger != null){
Message message = Message.obtain(null, 0, "hello");//发送Message
try {
mMessenger.send(message);
} catch (RemoteException e) {
e.printStackTrace();
}
}
}}
服务端（接收Message)public class MessengerService extends Service { // 适合于多进程，单线程。。不需要考虑线程安全 Messenger mMessenger = new Messenger(new IncomingHandler()); class IncomingHandler extends Handler{ @Override public void handleMessage(Message msg) { super.handleMessage(msg); // 处理消息 switch (msg.what){ case 0: // fdsfdskfdlsj; break; } } } @Nullable @Override public IBinder onBind(Intent intent) { return mMessenger.getBinder(); }}
