如何在使用addSnapshotListener时查看Firestore的实时变化？

FirebaseFirestore db = FirebaseFirestore.getInstance();
CollectionReference collectionRef = db.collection("your_collection");

collectionRef.addSnapshotListener(new EventListener<QuerySnapshot>() {
    @Override
    public void onEvent(@Nullable QuerySnapshot querySnapshot, @Nullable FirebaseFirestoreException e) {
        if (e != null) {
            Log.w(TAG, "Listen failed.", e);
            return;
        }

        for (DocumentChange change : querySnapshot.getDocumentChanges()) {
            DocumentSnapshot documentSnapshot = change.getDocument();
            switch (change.getType()) {
                case ADDED:
                    Log.d(TAG, "New document: " + documentSnapshot.getId());
                    // 处理新增文档的逻辑
                    break;
                case MODIFIED:
                    Log.d(TAG, "Modified document: " + documentSnapshot.getId());
                    // 处理修改文档的逻辑
                    break;
                case REMOVED:
                    Log.d(TAG, "Removed document: " + documentSnapshot.getId());
                    // 处理删除文档的逻辑
                    break;
            }
        }
    }
});