I have the above data structure stored in Cloud Firestore. I want to save the dungeon_group which is an array of strings stored in Firestore.
I have difficulty in getting the data and stored as an array. I am just able to get a weird string but any method to store as a string array? Below is the code I used.
I am able to achieve this in Swift as follow, but not sure how to do the same in Android.
//Swift
Firestore.firestore().collection("dungeon").document("room_en").getDocument { (document, error) in
if let document = document {
let group_array = document["dungeon_group"] as? Array ?? [""]
print(group_array)
}
}
//JAVA Android
FirebaseFirestore.getInstance().collection("dungeon").document("room_en").get().addOnCompleteListener(new OnCompleteListener<DocumentSnapshot>() {
@Override
public void onComplete(@NonNull Task<DocumentSnapshot> task) {
DocumentSnapshot document = task.getResult();
String group_string= document.getData().toString();
String[] group_array = ????
Log.d("myTag", group_string);
}
});
Console OutPut as the follow:{dungeon_group=[3P, Urgent, Mission Challenge, Descended, Collaboration, Daily, Technical, Normal]}
When you call DocumentSnapshot.getData(), it returns a Map. You're just calling toString() on that map, which is going to give you a dump of all the data in the document, and that's not particularly helpful. You need to access the dungeon_group field by name:
DocumentSnapshot document = task.getResult();
List<String> group = (List<String>) document.get("dungeon_group");
- edit: syntax error in typecasting