Recyclerview 无法从 Firebase 检索双重数据/值

Question

I am having a hard time retrieving the accurate double data when implementing RecyclerView with FirebaseRecylerAdapter. To clarify my concern, I am receiving the correct double data but without the decimal value. The double data display with whole numbers and zero decimals (ex. 100.0, 40.0, 23.0)

Adapter class

public class MyAdapter extends FirebaseRecyclerAdapter<UserDrive, MyAdapter.MyViewHolder> {

    public MyAdapter(@NonNull FirebaseRecyclerOptions<UserDrive> options) {
        super(options);
    }

    @Override
    protected void onBindViewHolder(@NonNull MyViewHolder holder, int position, @NonNull UserDrive model) {


        //double ma_ovScore = (double) Math.round(Double.valueOf(model.getOvScore())*100)/100;
        holder.adptr_ovScore.setText(String.valueOf(model.getOvScore()));
        Log.i("OvScore", ""+Double.parseDouble(String.valueOf(model.getOvScore())));
        holder.adptr_dateTime.setText(DateFormat.format("MM.dd.yyyy", new Date(model.getDateTime())).toString());

        holder.adptr_ovScore.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                AppCompatActivity activity = (AppCompatActivity) view.getContext();
                activity.getSupportFragmentManager().beginTransaction().replace(R.id.wrapper, new descFragment(model.getOvScore(),model.getDateTime(),model.getDistance(),model.getManualDistractionScore(),model.getsafeDrive(),model.gettexting(),model.gettalkPhone(),model.getoperatingRad(),model.getdrinking(),model.getreachBehind())).addToBackStack(null).commit();
            }
        });

    }

    @NonNull
    @Override
    public MyViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.singlerowdesign,parent,false);
        return new MyViewHolder(view);
    }

    public class MyViewHolder extends RecyclerView.ViewHolder
    {
        TextView adptr_ovScore, adptr_dateTime;

        public MyViewHolder(@NonNull View itemView){
            super(itemView);

            adptr_ovScore = itemView.findViewById(R.id.new_ovScore);
            adptr_dateTime = itemView.findViewById(R.id.new_dateTime);
        }
    }
}

UserDrive class

public class UserDrive{
    public double ovScore=100.0;
    public double distance;

    public double manualDistractionScore;

    public long dateTime;

    //classes
    private double safeDrive;
    private double texting;
    private double talkPhone;
    private double operatingRad;
    private double drinking;
    private double reachBehind;

    public UserDrive() {
    }

    public UserDrive(double safeDrive, double texting, double talkPhone, double operatingRad, double drinking,
                     double reachBehind, double ovScore, double distance, double manualDistractionScore){
        this.safeDrive=safeDrive;
        this.texting=texting;
        this.talkPhone=talkPhone;
        this.operatingRad=operatingRad;
        this.drinking=drinking;
        this.reachBehind=reachBehind;

        this.ovScore=ovScore;
        this.distance=distance;
        this.manualDistractionScore=manualDistractionScore;
    }

    public double getOvScore(){

        return (double) ovScore;
    }

    public double getDistance(){
        return (double) distance;
    }

    public double getManualDistractionScore() {
        return manualDistractionScore;
    }

    public long getDateTime() {
        return dateTime;
    }

    public void setDateTime(long dateTime){
        this.dateTime=dateTime;
    }

    //getValueEachClass
    public double getsafeDrive(){return (double) safeDrive;}
    public double gettexting(){return (double) texting;}
    public double gettalkPhone(){return (double) talkPhone;}
    public double getoperatingRad(){return (double) operatingRad;}
    public double getdrinking(){return (double) drinking;}
    public double getreachBehind(){return (double) reachBehind;}

    public void setSafeDrive(double safeDrive) {
        this.safeDrive = safeDrive;
    }
    public void setTexting(double texting) {
        this.texting = texting;
    }
    public void setTalkPhone(double talkPhone) {
        this.talkPhone = talkPhone;
    }
    public void setOperatingRad(double operatingRad) {
        this.operatingRad = operatingRad;
    }
    public void setDrinking(double drinking) {
        this.drinking = drinking;
    }
    public void setReachBehind(double reachBehind) {
        this.reachBehind = reachBehind;
    }

    public void setManualDistractionScore(double manualDistractionScore) { this.manualDistractionScore = manualDistractionScore; }

    public void setOvScore(int ovScore){this.ovScore=ovScore;}

    public void deductOvScore(double deduct){
        this.ovScore=ovScore-deduct;
    }
}

firebase original value:

log output:

the expected output should be the accurate double values, number with two-digit decimal (ex. 93.34, 92.13)

Answer 1

The problem in your code lies in the fact that you're having an incorrect setter:

public void setOvScore(int ovScore){this.ovScore=ovScore;}

The argument is of type int and not double, hence that behavior. To solve this you have to change the type of the argument from int to double:

public void setOvScore(double ovScore){this.ovScore=ovScore;}
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