android - Convert DocumentSnapshot Data to List

Question

I want to read each Object list from the document "list_of_clients" and export it to a custom List that i created

In Realtime Database there is a function called GenericTypeIndicator which helps you getting the values, this is similar to what i want but on Cloud FireStore there is no such function

I'm very new to android and i don't know how much more i can explain this but here are some pics:

This is my DataBase:

This is my user_list.java

private String user_addr;
private String user_name;
private String user_phone;


public user_list(String user_addr, String user_name, String user_phone) {
    this.user_addr = user_addr;
    this.user_name = user_name;
    this.user_phone = user_phone;
}

public user_list() {

}

public String getUser_phone() {
    return user_phone;
}

public void setUser_phone(String user_phone) {
    this.user_phone = user_phone;
}

public String getUser_name() {
    return user_name;
}

public void setUser_name(String user_name) {
    this.user_name = user_name;
}

public String getUser_addr() {
    return user_addr;
}

public void setUser_addr(String user_addr) {
    this.user_addr = user_addr;
}

What i tried:

        db.collection("clients").document("list_of_clients")
            .get()
            .addOnCompleteListener(new OnCompleteListener<DocumentSnapshot>() {
                @Override
                public void onComplete(@NonNull Task<DocumentSnapshot> task) {
                    if (task.isSuccessful()) {
                        //if read successful

                        DocumentSnapshot document = task.getResult();

                        List<user_list> messages = document.getData();

                            Toast.makeText(getApplicationContext(), document.getId() + " => " + document.getData(), Toast.LENGTH_LONG).show();

                    } else {
                        //eroare
                    }
                }
            });

Answer 1

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