update example

Examples/firebase-migration/app/App.js

@@ -48,7 +48,7 @@ class MainPage extends Component {
           // Get information about the notification that was opened
           const notif: Notification = notificationOpen.notification;
           this.setState({
-            initNotif: notif
+            initNotif: notif.data
           })
           if(notif && notif.targetScreen === 'detail'){
             setTimeout(()=>{
@@ -75,15 +75,13 @@ class MainPage extends Component {
     firebase.messaging().subscribeToTopic('sometopic');
     firebase.messaging().unsubscribeFromTopic('sometopic');
 
-    AsyncStorage.getItem('lastNotification').then(data=>{
-      if(data){
-        // if notification arrives when app is killed, it should still be logged here
+    var offline = await AsyncStorage.getItem('headless')
+    if(offline){
       this.setState({
-          offlineNotif: JSON.parse(data)
+        offlineNotif: offline
       });
-        AsyncStorage.removeItem('lastNotification');
+      AsyncStorage.removeItem('headless');
     }
-    })
   }
 
   componentWillUnmount(){
@@ -208,7 +206,7 @@ class MainPage extends Component {
           Notif when app was closed:
         </Text>
         <Text>
-          {JSON.stringify(this.state.offlineNotif)}
+          {this.state.offlineNotif}
         </Text>
 
         <Text style={styles.instructions}>

Examples/firebase-migration/app/Listeners.js

@@ -16,8 +16,8 @@ function displayNotificationFromCustomData(message: RemoteMessage){
   }
 }
 
-export async function registerKilledListener(message: RemoteMessage){
-  await AsyncStorage.setItem('lastNotification', JSON.stringify(message.data));
+export async function registerHeadlessListener(message: RemoteMessage){
+  await AsyncStorage.setItem('headless', new Date().toISOString());
   displayNotificationFromCustomData(message);
 }
 

Examples/firebase-migration/index.android.js

@@ -5,7 +5,7 @@
  */
 
 import React, { Component } from 'react';
-import {registerKilledListener} from './app/Listeners';
+import {registerHeadlessListener} from './app/Listeners';
 
 import {
   AppRegistry,
@@ -24,4 +24,4 @@ export default class SimpleFcmClient extends Component {
 
 AppRegistry.registerComponent('SimpleFcmClient', () => SimpleFcmClient);
 
-AppRegistry.registerHeadlessTask('RNFirebaseBackgroundMessage', () => registerKilledListener);
+AppRegistry.registerHeadlessTask('RNFirebaseBackgroundMessage', () => registerHeadlessListener);