firestores

DeleteData.java

 private void deleteData(){
        progressDialog.setMessage("Deleting Data...");
        progressDialog.show();
        CollectionReference collectionReference = firebaseFirestore.collection("data");
        DocumentReference documentReference = collectionReference.document(modelWebsite.get(0).getIdDocument());
        documentReference.delete()
                .addOnCompleteListener(task -> {
                    progressDialog.dismiss();
                    Toast.makeText(MainActivity.this, "Deleting successfulyy", Toast.LENGTH_SHORT).show();
                }).addOnFailureListener(new OnFailureListener() {
            @Override
            public void onFailure(@NonNull Exception e) {
                progressDialog.dismiss();
                Toast.makeText(MainActivity.this, e.getMessage(), Toast.LENGTH_SHORT).show();
            }
        });

    }