Java 如何将数据库中的项目分组并显示它们-Android

我在android应用程序中有收据和日志模型。收据有许多日志

我根据sortID和grade的日志查询组_

//recieve RecepitID and query to group logs
final long forwardedId = (long) getIntent().getExtras().get(String.valueOf("recepitID"));
List<Logs> logsList = new Select().from(Logs.class).where("Receipt = " + forwardedId).groupBy("SortID, Grade").execute();

//接收RecepitID并查询组日志
final long forwardedId=（long）getIntent（）.getExtras（）.get（String.valueOf（“recepitID”）；
List logsList=new Select（）.from（Logs.class）.where（“Receipt=“+forwardedId”）.groupBy（“SortID，Grade”）.execute（）；

这个分组很好。问题是下一个。我需要这样的输出（红色圆圈中的部分）： 但我是这样理解的：

这是我如何做到这一点的部分代码

public class LogsRecapitulation extends AppCompatActivity {

    private ListView mainListView;
    private BaseAdapter listAdapter;
    private TextView logsCount;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.recapitulation_listview);
        mainListView = (ListView) findViewById(R.id.ListViewItem);

        //recieve RecepitID and query to group logs
        final long forwardedId = (long) getIntent().getExtras().get(String.valueOf("recepitID"));
        List<Logs> logsList = new Select().from(Logs.class).where("Receipt = " + forwardedId).groupBy("SortID, Grade").execute();

        TextView result = (TextView) findViewById(R.id.LogMassResult);
        double sum = 0.0;
        for (int i = 0; i < logsList.size(); i++) {
            sum += logsList.get(i).getM3();
        }
        result.setText(String.format("%.2f m3", sum));

        for (int i = 0; i < logsList.size(); i++) {
            if (logsList.get(i).receipt.priceType.equals("Na panju")) {
                TextView stumpPriceKN = (TextView) findViewById(R.id.sumPriceKN);
                double sumPricekn = 0.0;

                for (int j = 0; j < logsList.size(); j++) {
                    sumPricekn += logsList.get(j).price.stumpPrice_kn * logsList.get(j).getM3();
                }
                stumpPriceKN.setText(String.format("%.2f KN", sumPricekn));

            } else {
                TextView roadKN = (TextView) findViewById(R.id.sumPriceKN);
                double roadPrKn = 0.0;
                for (int j = 0; j < logsList.size(); j++) {
                    roadPrKn += logsList.get(j).price.roadPrice_kn * logsList.get(j).getM3();
                }
                roadKN.setText(String.format("%.2f KN", roadPrKn));
            }
        }

        for (int i = 0; i < logsList.size(); i++) {
            if (logsList.get(i).receipt.priceCorrection > 0 && logsList.get(i).receipt.priceType.equals("Na panju")) {
                TextView corecctionPriceKn = (TextView) findViewById(R.id.correctionPriceKN);
                double correcSumKN = 0.0;
                for (int j = 0; j < logsList.size(); j++) {
                    correcSumKN += (logsList.get(j).price.stumpPrice_kn * logsList.get(j).getM3()) + ((logsList.get(j).price.stumpPrice_kn * logsList.get(j).getM3()) * logsList.get(j).receipt.priceCorrection / 100);
                }
                corecctionPriceKn.setText(String.format("%.2f KN", correcSumKN));
            } else if (logsList.get(i).receipt.priceCorrection > 0 && logsList.get(i).receipt.priceType.equals("Šumska cesta")) {
                TextView corecctionPriceKn = (TextView) findViewById(R.id.correctionPriceKN);
                double correcSumKN = 0.0;
                for (int j = 0; j < logsList.size(); j++) {
                    correcSumKN += (logsList.get(j).price.roadPrice_kn * logsList.get(j).getM3()) + ((logsList.get(j).price.roadPrice_kn * logsList.get(j).getM3()) * logsList.get(j).receipt.priceCorrection / 100);
                }
                corecctionPriceKn.setText(String.format("%.2f KN", correcSumKN));
            } else {
                TextView priceHolder = (TextView) findViewById(R.id.KorekcijaCijene);
                TextView corecctionPriceKn = (TextView) findViewById(R.id.correctionPriceKN);
                priceHolder.setText("");
                corecctionPriceKn.setText("");
            }
        }

        listAdapter = new RecapitulationArrayAdapter(logsList);
        mainListView.setAdapter(listAdapter);

        //display logs count
        logsCount = (TextView) findViewById(R.id.logsCount);
        logsCount.setText(String.valueOf(logsList.size()));
    }

    private class RecapitulationArrayAdapter extends BaseAdapter {
        private LayoutInflater inflater;
        private List<Logs> logsList;

        public RecapitulationArrayAdapter(List<Logs> logsList) {
            inflater = LayoutInflater.from(LogsRecapitulation.this);
            this.logsList = logsList;
        }

        @Override
        public int getCount() {
            return logsList.size();
        }

        @Override
        public Object getItem(int position) {
            return logsList.get(position);
        }

        @Override
        public long getItemId(int position) {
            return logsList.get(position).getId();
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            if (convertView == null) {
                convertView = inflater.inflate(R.layout.logs_recapitulation, parent, false);
            }
            Logs log = logsList.get(position);
            ((TextView) convertView.findViewById(R.id.rec_log_sort)).setText(log.sort_id);
            ((TextView) convertView.findViewById(R.id.rec_log_class)).setText(log.grade);
            ((TextView) convertView.findViewById(R.id.rec_log_count)).setText(String.valueOf(logsList.size()));
            ((TextView) convertView.findViewById(R.id.rec_logs_mass)).setText(String.format("%.2f m3", log.getM3()));

            if (log.receipt.priceType.equals("Na panju")) {
                ((TextView) convertView.findViewById(R.id.rec_log_price_default)).setText(String.valueOf(log.price.stumpPrice_kn));
            } else {
                ((TextView) convertView.findViewById(R.id.rec_log_price_default)).setText(String.valueOf(log.price.roadPrice_kn));
            }

            if (log.receipt.priceType.equals("Na panju")) {
                ((TextView) convertView.findViewById(R.id.rec_calculated_price)).setText(String.format("%.2f KN", log.price.stumpPrice_kn * log.getM3()));
            } else {
                ((TextView) convertView.findViewById(R.id.rec_calculated_price)).setText(String.format("%.2f KN", log.price.roadPrice_kn * log.getM3()));
            }

            return convertView;
        }
    }

}

公共类日志提交扩展了AppCompative活动{
私有ListView主ListView；
专用BaseAdapter listAdapter；
私有文本视图日志搜索；
@凌驾
创建时受保护的void（Bundle savedInstanceState）{
super.onCreate（savedInstanceState）；
setContentView（R.layout.repaituation_listview）；
mainListView=（ListView）findViewById（R.id.ListViewItem）；
//接收ReceiveReceipitID并查询组日志
final long forwardedId=（long）getIntent（）.getExtras（）.get（String.valueOf（“recepitID”）；
List logsList=new Select（）.from（Logs.class）.where（“Receipt=“+forwardedId”）.groupBy（“SortID，Grade”）.execute（）；
TextView结果=（TextView）findViewById（R.id.LogMassResult）；
双和=0.0；
对于（int i=0；i0&&logsList.get（i）.receipt.priceType.equals（“Na panju”））{
TextView CoreCtionPriceKN=（TextView）findViewById（R.id.correctionPriceKN）；
双相关系数KN=0.0；
对于（int j=0；j0&&logsList.get（i）.receipt.priceType.equals（“Šumska cesta”））{
TextView CoreCtionPriceKN=（TextView）findViewById（R.id.correctionPriceKN）；
双相关系数KN=0.0；
对于（int j=0；jselect sort, grade, count(grade), sum(mass), price from logs where receiptid = forwardedId group by sort, grade;

select /*sort, grade,*/ count(grade), sum(mass), price from logs where receiptid = forwardedId /*group by sort, grade*/;

select count(grade) over(partition by fieldName)