First time i am working with fire base,when am trying to retrieve the data using fire base rest apis i get the response like this,
{
"-JQjT7REctmFfOAoGI6d" : {
"age" : "23",
"name" : "xxx",
"id" : "1"
},
"-JQjT7RGTUdl1FTrjed6" : {
"age" : "34",
"name" : "xxx",
"id" : "1"
}
}
it contain multiple json objects with diffrent ids without jsonarray.i want to store this data in objects.
If you are having problem in parsing just because of keys then you can use a iterator and extract the keys and parse them
if(jObj != null){
Iterator<Object> keys = jObj.keys();
while(keys.hasNext()){
String key = String.valueOf(keys.next()); // this will be your JsonObject key
JSONObject childObj = jObj.getJSONObject(key);
if(childObj != null){
//Parse the data inside your JSONObject
}
}
}
you can access data by mainly 3 ways
1 addValueEventListener
2 addChildEventListener
3 addListenerForSingleValueEvent
Step 1: Create Model Class
public class UserModel {
String id;
String name;
String age;
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getAge() {
return age;
}
public void setAge(String age) {
this.age = age;
}
}
Step 2: Access Data In Activity
Firebase firebaseUserDataReference = new Firebase("your firebase url").child("your root name/");
firebaseUserDataReference.addListenerForSingleValueEvent(new ValueEventListener() {
@Override
public void onDataChange(DataSnapshot dataSnapshot) {
Log.d("Call", String.valueOf(dataSnapshot.getValue()));
for (DataSnapshot postData : dataSnapshot.getChildren()) {
UserModel userModel= postData.getValue(UserModel.class);
yourArrayList.add(userModel);
}
}
@Override
public void onCancelled(FirebaseError firebaseError) {
}
});
