Noel Omondi Noel Omondi - 15 days ago 14
Android Question

No setter/field for while trying to populate a listview on firebase

I am trying to retrieve data from firebase and display it on my listview using firebase-ui. The code runs fine but nothing is displayed on the list view. This is what I get from my logs:


W/ClassMapper: No setter/field for -KNRXdDOlA9nV6qxXvOl found on class com.example.sammie.coreteccontacts.Sacco


Here is my FirebaselistAdapter

DatabaseReference mDatabaseReference = FirebaseDatabase.getInstance().getReference();
FirebaseListAdapter<Sacco> adapter = new FirebaseListAdapter<Sacco>(getActivity(), Sacco.class, android.R.layout.simple_list_item_1, mDatabaseReference) {
@Override
protected void populateView(View view, Sacco sacco, int i) {
((TextView)view.findViewById(android.R.id.text1)).setText(Sacco.getName());
}
};
contactList.setAdapter(adapter);


Here is my Sacco class:

package com.example.sammie.coreteccontacts;


public class Sacco {

String description;
String location;
static String name;

public Sacco() {
}

public Sacco(String description, String location, String name) {
this.name = name;
this.description = description;
this.location = location;
}

public static String getName() {
return name;
}

public String getDescription() {
return description;
}

public String getLocation() {
return location;
}


}

Here is a sample of the data from firebase


KNRWnG6BTkbGJQJVq9Qaddclose

description:"test description"

location: "test location"

name: "test name"

Answer

There are no setter methods in your class.

public void setName(String name) {
    this.name = name;
}

public void setDescription(String description) {
    this.description = description;
}

public void setLocation(String location) {
    this.location = location;
}

BUT

-KNRWnG6BTkbGJQJVq9Qaddclose

This is a unique key which is to be obtained as an object containing your description, location and name.

W/ClassMapper: No setter/field for -KNRXdDOlA9nV6qxXvOl found on class com.example.sammie.coreteccontacts.Sacco

This shows that there is an error with your database listener's positioning. It is reading -KNRWnG6BTkbGJQJVq9Qaddclose as a variable to your Sacco class instead of an object of it.

Please check the JSON file and DatabaseReference. Most probably it should be like this:

  • UnderChilds <----- (ON CHILD LISTENER).
    • -KNRWnG6BTkbGJQJVq9Qaddclose
    • -KNRWnSYnuojkbGJQJVq9Qaddclos
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