Android how to remove value from firebase database?

Question

this is my first project in firebase. I am trying to remove value from firebase but when ever i am trying to remove value from firebase, my application crashes. I am not getting how do i solve this error Service.class ``` public class NotiListener extends Service { @Override public IBinder onBind(Intent intent) { return null; } //When the service is started @Override public int onStartCommand(Intent intent, int flags, int startId) { //Opening sharedpreferences SharedPreferences sharedPreferences = getSharedPreferences(Constant.SHARED_PREF, MODE_PRIVATE); //Getting the firebase id from sharedpreferences String id = sharedPreferences.getString(Constant.UNIQUE_ID, null); //Creating a firebase object Firebase firebase = new Firebase(Constant.FIREBASE_APP + id); //Adding a valueevent listener to firebase //this will help us to track the value changes on firebase firebase.addValueEventListener(new ValueEventListener() { //This method is called whenever we change the value in firebase @Overr…

Accepted Answer

`dataSnapshot.getRef().setValue(null);` isn't the correct way of deleting your Firebase Object. You're not allowed to save a null value to your database. To remove it, you use:

```
dataSnapshot.getRef().removeValue();
```

You should also check if the value isn't null, since you will delete that object.

```
if(snapshot.child("msg").getValue() != null){
   String msg = snapshot.child("msg").getValue().toString();
   return;
}
```

Android how to remove value from firebase database?

Solution

Problem