added notification

index.js

@@ -1,9 +1,41 @@
 /**
  * @format
  */
-
+import notifee, { AndroidImportance } from '@notifee/react-native';
+import messaging from '@react-native-firebase/messaging';
 import { AppRegistry } from 'react-native';
 import App from './App';
 import { name as appName } from './app.json';
 
+// 📌 Background/Killed xabarlarni ushlash
+messaging().setBackgroundMessageHandler(async remoteMessage => {
+  console.log('Background message:', remoteMessage);
+
+  const channelId = await notifee.createChannel({
+    id: 'default',
+    name: 'Umumiy bildirishnomalar',
+    sound: 'default',
+    importance: AndroidImportance.HIGH,
+  });
+
+  await notifee.displayNotification({
+    title:
+      remoteMessage.notification?.title ||
+      remoteMessage.data?.title ||
+      'Yangi xabar',
+    body:
+      remoteMessage.notification?.body ||
+      remoteMessage.data?.body ||
+      'Matn yo‘q',
+    android: {
+      channelId,
+      smallIcon: 'ic_launcher',
+      sound: 'default',
+      pressAction: {
+        id: 'default',
+      },
+    },
+  });
+});
+
 AppRegistry.registerComponent(appName, () => App);