import com.example.lifecycle.LifecycleService; import com.example.lifecycle.LifecycleEvent; import com.example.lifecycle.LifecycleListener; public class MyApp implements LifecycleListener { private LifecycleService lifecycleService; public MyApp() { lifecycleService = new LifecycleService(); lifecycleService.addListener(this); } public void start() { lifecycleService.fireEvent(LifecycleEvent.START); } public void stop() { lifecycleService.fireEvent(LifecycleEvent.STOP); } @Override public void onEvent(LifecycleEvent event) { if (event == LifecycleEvent.START) { } else if (event == LifecycleEvent.STOP) { } } public static void main(String[] args) { MyApp app = new MyApp(); app.start(); try { Thread.sleep(5000); } catch (InterruptedException e) { e.printStackTrace(); } app.stop(); } } <component id="myApp" class="com.example.MyApp"> <dependencies> <dependency ref="databaseComponent"/> <dependency ref="networkComponent"/> </dependencies> </component> <component id="databaseComponent" class="com.example.DatabaseComponent"/> <component id="networkComponent" class="com.example.NetworkComponent"/>


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