Query Firestore Against A List Of Documents

I have a List of names referring to Documents that I want to retrieve from FireStore. I want to access the contents after they are finished loading so I have implemen

Solution 1:

According to your comment:

I have a List of Document names and I need to transform this to essentially a List of Tasks to retrieve the entire document.

To solve this, please use the following lines of code:

FirebaseFirestore rootRef = FirebaseFirestore.getInstance();
CollectionReference collRef = rootRef.collection("yourCollection");
List<String> myGroupTags = newArrayList<>();
List<DocumentReference> listDocRef = newArrayList<>();
for(String s : myGroupTags) {
    DocumentReference docRef = collRef.document(s);
    listDocRef.add(docRef);
}

List<Task<DocumentSnapshot>> tasks = newArrayList<>();
for (DocumentReference documentReference : listDocRef) {
    Task<DocumentSnapshot> documentSnapshotTask = documentReference.get();
    tasks.add(documentSnapshotTask);
}
Tasks.whenAllSuccess(tasks).addOnSuccessListener(newOnSuccessListener<List<Object>>() {
    @OverridepublicvoidonSuccess(List<Object> list) {
        //Do what you need to do with your listfor (Objectobject : list) {
            GroupBase gb = ((DocumentSnapshot) object).toObject(GroupBase.class);
            Log.d("TAG", tp.getPropertyname);
        }
    }
});