How to remove child nodes in firebase android?

user_2925200 0
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I have a number of child nodes in my firebase db and I want to delete only one child node.

Firebase firebase=new Firebase("..address..");

firebase.push().setValue(classObj);

//here classObj is a class object which has a getter and setter for an integer id

Now that I have pushed multiple objects I want to delete only one based on the id in the classObj

firebase-realtime-database firebase android
4 Answers

If you are using DatabaseReference for firebase

DatabaseReference dbNode = FirebaseDatabase.getInstance().getReference().getRoot().child("Node");

Here Node represents the child which you wish to delete

dbNode.setValue(null);

If you are using a dataSnapshot

i.e., while you are working on some data change events

dataSnapshot.getRef().setValue(null);
user_68973010

To remove a Node or child node

private FirebaseDatabase database = FirebaseDatabase.getInstance();

database.getReference("root_node_name")
   .child("child_node_name")
   .removeValue();

To remove Sub-child node

database.getReference("root_node_name")
   .child("child_node_name")
   .child("sub_child_node_name")
   .removeValue();
user_79529730
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