How do I get specific values from a datasnapshot in flutter?

Question

I have this datasnapshot

"{post1: {pic: https://i.redd.it/ni6zhxh874011.jpg, title: title, desc: desc}, post2: {pic: https://i.redd.it/krj9miojg5011.jpg, title: awsdas, desc: desc2}}"

and I would like to retrieve the "pic" values from each post. snapshot.value["pic"] does not work it returns null.

thanks in advance

this is how I recieved the datasnapshot for my future builder

Future<Object> _obj () async {
    Object _objdatabase;
    await FirebaseDatabase.instance.reference().child("Communities").once().then((DataSnapshot snapshot) {
        print(_objdatabase.toString());

        _objdatabase = snapshot.value; 
    });
    return _objdatabase;
}    

Solution 1

here is what i did

Map<dynamic, dynamic> map = snapshot.data.snapshot.value;

map.values.toList()[index]["pic"]

Solution 2

if you are sure snapshot have child's use value member as Map Object

snapshot.value['key'];

Solution 3

What you want is to iterated over values in your snapshot.value and add them to a list.

pseudo-code:

for (var value in snapshot.value.values){
myList.add(value);
}

Then you will be able to do something like this depending on your use case:

myList.forEach((v)=>print(v["pic"].toString)); //just an example