gistfile1.txt

    static class ViewHolder {
        TextView prescriptionDosage;
        TextView prescriptionName;
        TextView prescriptionDoses;
        TextView prescriptionDescription;
        Button acceptButton;
        Button rejectButton;
        ImageView flagImage;
    }

    private class PrescriptionAdapter extends ArrayAdapter<Prescription> {
       PrescriptionAdapter(Prescription[] prescriptions) {
          super(PrescriptionActivity.this, R.layout.prescription_list_row, R.id.prescription_name, prescriptions);
       }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            final ViewHolder viewHolder;

            if(convertView==null){

                LayoutInflater inflater = ((Activity) PrescriptionActivity.this).getLayoutInflater();
                convertView = inflater.inflate(R.layout.prescription_list_row, parent, false);

                viewHolder = new ViewHolder();
                viewHolder.prescriptionName = (TextView) convertView.findViewById(R.id.prescription_name);
                viewHolder.prescriptionDosage = (TextView)convertView.findViewById(R.id.prescription_dosage_measurement);
                viewHolder.prescriptionDescription = (TextView)convertView.findViewById(R.id.prescription_description);
                viewHolder.prescriptionDoses = (TextView)convertView.findViewById(R.id.prescription_doses);
                viewHolder.acceptButton = (Button) convertView.findViewById(R.id.accept_button);
                viewHolder.rejectButton = (Button) convertView.findViewById(R.id.reject_button);
                convertView.setTag(viewHolder);

            }else{
                viewHolder = (ViewHolder)convertView.getTag();
            }

            final Prescription prescription = getItem(position);
            if(prescription != null) {

                viewHolder.prescriptionName.setText(prescription.name);

                viewHolder.prescriptionDosage.setText(prescription.dosageMeasurement);

                viewHolder.prescriptionDescription.setText(prescription.description);

                Log.d(TAG, "remaining doses: " + prescription.getRemainingDoses());
                viewHolder.prescriptionDoses.setText("" + prescription.getRemainingDoses());

                final DatabaseHelper db = new DatabaseHelper(PrescriptionActivity.this);

                Log.v(TAG, "Prescription ID: " + prescription._id);

                if (db.prescriptionHasFlag(prescription._id)) {
                    viewHolder.flagImage = (ImageView) convertView.findViewById(R.id.flag_button);
                    final int yellow = Color.YELLOW;
                    viewHolder.flagImage.setBackgroundColor(yellow);
                }


                final int gray = Color.GRAY;
                final int green = Color.GREEN;
                final int red = Color.RED;
                viewHolder.rejectButton.setBackgroundColor(gray);
                viewHolder.acceptButton.setBackgroundColor(gray);

                if (prescription.accepted.equals("true")) {
                    viewHolder.acceptButton.setSelected(true);
                    viewHolder.rejectButton.setSelected(false);
                    viewHolder.acceptButton.setBackgroundColor(green);
                } else {
                    viewHolder.acceptButton.setSelected(false);
                    viewHolder.rejectButton.setSelected(true);
                    viewHolder.rejectButton.setBackgroundColor(red);
                }

                viewHolder.acceptButton.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        viewHolder.acceptButton.setSelected(!viewHolder.acceptButton.isSelected());
                        prescription.accepted = "true";
                        db.updatePrescription(prescription);

                        if (viewHolder.acceptButton.isSelected()) {
                            if (viewHolder.rejectButton.isSelected()) {
                                viewHolder.rejectButton.setSelected(false);
                            }
                            v.setBackgroundColor(green);
                            viewHolder.rejectButton.setBackgroundColor(gray);
                        } else {
                            v.setBackgroundColor(gray);
                        }
                    }
                });

                viewHolder.rejectButton.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        viewHolder.rejectButton.setSelected(!viewHolder.rejectButton.isSelected());
                        prescription.accepted = "false";
                        db.updatePrescription(prescription);

                        if (viewHolder.rejectButton.isSelected()) {
                            if (viewHolder.acceptButton.isSelected()) {
                                viewHolder.acceptButton.setSelected(false);
                            }
                            v.setBackgroundColor(red);
                            viewHolder.acceptButton.setBackgroundColor(gray);
                        } else {
                            v.setBackgroundColor(gray);
                        }
                    }
                });
            }
            return convertView;
        }
    }