Saving Data on Android

CloudFirestoreManager.kt
 and navigate to 
stopListeningForPostChanges()
 and replace the function code with the 
following:
fun
 
stopListeningForPostChanges
()
 = postsRegistration.remove()
By calling 
remove
 method on a 
ListenerRegistration
 object you remove the 
listener from the locatin that this listener is assigned to.
Now go back to the 
HomeActivity
 and override 
onStop
 method and call 
stopListeningForPostChanges
 from there, like this:
Saving Data on Android
Chapter 18: Reading Data from Cloud Firestore
raywenderlich.com
263

---

override
 
fun
 
onStop
()
 { 
    
super
.onStop() 
    cloudFirestoreManager.stopListeningForPostChanges() 
}
Build and run your app. You should see the posts now on the home screen:
You can test the real-time updates by deleting the post directly from the console. 
You should see how the change is reflected in the app almost instantly.