java - 如何将Map值添加到ArrayList中？

Question

I want to add map values into an arraylist.This is my current code.

  ArrayList<Map<String, String>> itemData = new ArrayList<>();
    int index =0;

    Map<String, String> itemselected = new HashMap<>();
    itemselected.put("invoiceNo", textViewInvNo.getText().toString());//d
    itemselected.put("cstName", textViewCstName.getText().toString());//d
    itemselected.put("contact", textViewCstph.getText().toString());//d
    itemselected.put("barcode", barCode.getText().toString());//d
    itemselected.put("desc", itemDesc.getText().toString());//d
    itemselected.put("weight", weightLine.getText().toString());//d
    itemselected.put("rate", rateAmount.getText().toString());//d
    itemselected.put("makingAmt", makingAmount.getText().toString());//d
    itemselected.put("net_rate", netRate.getText().toString());//d
    itemselected.put("itemTotal", itemtotal.getText().toString());//d
    itemselected.put("vat", textViewVat.getText().toString());//d
    itemselected.put("sum_total", textViewSum.getText().toString());//d
    itemselected.put("bill_type", billType);//null

    itemData.add(index,itemselected);
    index++;

This is the output that i get.

[{rate=24000,weight=21.000,desc=item description,makingAmt=200,cstName=Test customer,sum_total=52094.46,vat=1021.46,itemTotal=51073,barcode=BQSP78BB,net_rate=24200,invoiceNo=1842,bill_type=estimate,contact=+91-8600931386}]

This is the output I am expecting.

[{rate=24000,weight=21.000,desc=item description,makingAmt=200,cstName=Test customer,sum_total=52094.46,vat=1021.46,itemTotal=51073,barcode=BQSP78BB,net_rate=24200,invoiceNo=1842,bill_type=estimate,contact=+91-8600931386},{rate=24000,weight=21.000,desc=item description,makingAmt=200,cstName=Test customer,sum_total=52094.46,vat=1021.46,itemTotal=51073,barcode=BQSP79BB,net_rate=24200,invoiceNo=1842,bill_type=estimate,contact=+91-8600931386}, {rate=24000,weight=21.000,desc=item description,makingAmt=200,cstName=Test customer,sum_total=52094.46,vat=1021.46,itemTotal=51073,barcode=BQSP80BB,net_rate=24200,invoiceNo=1842,bill_type=estimate,contact=+91-8600931386}]

I have a method called showItem() that contains itemTable().This is code for itemTable()

    private void itemTable(String itembarcode, String itemdesc, String weight, String rate, String making, String netrate, String total) {
    TableLayout.LayoutParams tableParams = new TableLayout.LayoutParams(TableLayout.LayoutParams.MATCH_PARENT, TableLayout.LayoutParams.WRAP_CONTENT);
    TableRow.LayoutParams rowParams = new TableRow.LayoutParams(TableRow.LayoutParams.MATCH_PARENT, TableRow.LayoutParams.WRAP_CONTENT, 1f);
    rowParams.setMargins(16, 0, 16, 0);

    TableLayout tableLayout = new TableLayout(AddInvEst.this);
    tableLayout.setLayoutParams(tableParams);


    TableRow newRow = new TableRow(AddInvEst.this);
    newRow.setLayoutParams(tableParams);

    barCode = new TextView(AddInvEst.this);
    barCode.setLayoutParams(rowParams);
    barCode.setGravity(Gravity.CENTER);

    itemDesc = new TextView(AddInvEst.this);
    itemDesc.setLayoutParams(rowParams);
    itemDesc.setGravity(Gravity.CENTER);

    weightLine = new TextView(AddInvEst.this);
    weightLine.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.MATCH_PARENT, TableRow.LayoutParams.WRAP_CONTENT, 0.75f));
    weightLine.setGravity(Gravity.CENTER);

    rateAmount = new EditText(AddInvEst.this);
    rateAmount.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.MATCH_PARENT, TableRow.LayoutParams.WRAP_CONTENT, 0.5f));
    rateAmount.setGravity(Gravity.CENTER);
    rateAmount.setInputType(InputType.TYPE_CLASS_PHONE);
    //rateAmount.setSelection(rateAmount.getText().length());
    rateAmount.addTextChangedListener(rateTextWatcher);

    makingAmount = new EditText(AddInvEst.this);

    makingAmount.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.MATCH_PARENT, TableRow.LayoutParams.WRAP_CONTENT, 0.5f));
    makingAmount.setGravity(Gravity.CENTER);
    makingAmount.setInputType(InputType.TYPE_CLASS_PHONE);
    makingAmount.addTextChangedListener(mkAmountTextWatcher);

    netRate = new TextView(AddInvEst.this);
    netRate.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.MATCH_PARENT, TableRow.LayoutParams.WRAP_CONTENT, 0.5f));
    netRate.setGravity(Gravity.CENTER);
    netrates.add(netrate);

    itemtotal = new TextView(AddInvEst.this);
    itemtotal.setTag(count);
    itemtotal.setLayoutParams(rowParams);
    itemtotal.setGravity(Gravity.CENTER);
    Toast.makeText(AddInvEst.this, "item count is " + itemtotal.getTag(), Toast.LENGTH_SHORT).show();
    totals.add(total);
    itemtotal.addTextChangedListener(totalTextWatcher);

    double[] doubleList = new double[totals.size()];
    double sum = 0.0d;
    for (int i = 0; i < totals.size(); ++i) {
        doubleList[i] = Double.parseDouble(totals.get(i));
        sum += doubleList[i];
    }

    barCode.setText(itembarcode);
    itemDesc.setText(itemdesc);
    weightLine.setText(weight);
    rateAmount.setText(rate);
    makingAmount.setText(making);
    netRate.setText(netrate);
    itemtotal.setText(total);
    textViewSum.setText(sum * (0.02) + sum + "");//set total text to sum
    textViewVat.setText(sum * (0.02) + "");

    ArrayList<Map<String, String>> itemData = new ArrayList<>();
    int index =0;

    Map<String, String> itemselected = new HashMap<>();
    itemselected.put("invoiceNo", textViewInvNo.getText().toString());//d
    itemselected.put("cstName", textViewCstName.getText().toString());//d
    itemselected.put("contact", textViewCstph.getText().toString());//d
    itemselected.put("barcode", barCode.getText().toString());//d
    itemselected.put("desc", itemDesc.getText().toString());//d
    itemselected.put("weight", weightLine.getText().toString());//d
    itemselected.put("rate", rateAmount.getText().toString());//d
    itemselected.put("makingAmt", makingAmount.getText().toString());//d
    itemselected.put("net_rate", netRate.getText().toString());//d
    itemselected.put("itemTotal", itemtotal.getText().toString());//d
    itemselected.put("vat", textViewVat.getText().toString());//d
    itemselected.put("sum_total", textViewSum.getText().toString());//d
    itemselected.put("bill_type", billType);//null

    itemData.add(index,itemselected);
    index++;




    /*JSONObject jsonObject = new JSONObject();
    JSONArray jsonArray = new JSONArray();
    try {
        Toast.makeText(AddInvEst.this, "here the count is : "+count, Toast.LENGTH_SHORT).show();

            jsonArray.put(count-1 ,itemselected);
        jsonObject.put("itemSelected", jsonArray);

    } catch (JSONException e) {
        e.printStackTrace();
    }*/

    newRow.addView(barCode);
    newRow.addView(itemDesc);
    newRow.addView(weightLine);
    newRow.addView(rateAmount);
    newRow.addView(makingAmount);
    newRow.addView(netRate);
    newRow.addView(itemtotal);
    itemTable.addView(newRow);

    TextView display = (TextView) findViewById(R.id.tv_display);
    display.setText(itemData.toString());

    Toast.makeText(AddInvEst.this, itemData.toString(), Toast.LENGTH_SHORT).show();


}

This code for showItem()

    private void showItem(String json) {
    String itembarcode = "";
    String itemdesc = "";
    String weight = "";
    String rate = "";
    String making = "";
    String netrate = "";
    String total = "";

    try {
        JSONObject jsonObject = new JSONObject(json);
        JSONArray result = jsonObject.getJSONArray(ParseBarcode.JSON_ARRAY);
        JSONObject itemData = result.getJSONObject(0);
        itembarcode = itemData.getString(ParseBarcode.KEY_BARCODE);
        itemdesc = itemData.getString(ParseBarcode.KEY_DESC);
        weight = itemData.getString(ParseBarcode.KEY_WEIGHT);
        rate = itemData.getString(ParseBarcode.KEY_RATE);
        making = itemData.getString(ParseBarcode.KEY_MAKING);
        netrate = itemData.getString(ParseBarcode.KEY_NETRATE);
        total = itemData.getString(ParseBarcode.KEY_TOTAL);

    } catch (JSONException e) {
        e.printStackTrace();
    }
    //dynamic table generation code

    itemTable(itembarcode, itemdesc, weight, rate, making, netrate, total);
}

This is where I call showItem in the else block.

   private void sendBarcode(final String url, final String barcodeNo) {
    final Context context = getApplicationContext();
    //String url = ITEM_URL+barcodeNum+toString().trim();
    if (barcodeNo.equals("")) {
        Toast.makeText(AddInvEst.this, "Please enter a valid barcode number ", Toast.LENGTH_LONG).show();
    }
    loading = ProgressDialog.show(AddInvEst.this, "Please wait...", "Fetching...", false, false);

    StringRequest stringReq = new StringRequest(url,
            new Response.Listener<String>() {
                @Override
                public void onResponse(String response) {
                    if (response.equalsIgnoreCase("notfound")) {
                        final Dialog dialogCrash = new Dialog(AddInvEst.this);
                        dialogCrash.setContentView(R.layout.crashreport);
                        TextView crashreport = (TextView) dialogCrash.findViewById(R.id.tv_crashcode);
                        crashreport.setText("Please Enter a valid Barcode Number ...");

                        Button bt_crash = (Button) dialogCrash.findViewById(R.id.bt_crash);
                        bt_crash.setOnClickListener(new View.OnClickListener() {
                            @Override
                            public void onClick(View v) {
                                dialogCrash.dismiss();
                            }
                        });

                        dialogCrash.show();
                        loading.dismiss();

                    } else {

                        loading.dismiss();
                        showItem(response);
                    }
                }
            },
            new Response.ErrorListener() {
                @Override
                public void onErrorResponse(VolleyError error) {
                    Toast.makeText(context, "Your Internet connection is slow or not available!", Toast.LENGTH_SHORT).show();
                    loading.dismiss();
                }
            });
    RequestQueue reqQueue = Volley.newRequestQueue(context);
    reqQueue.add(stringReq);
}

And sendBarcode is what I call onClick of a button.

Answer 1

class A {
    List<Map<String,String>> itemData;

    public A() {
        itemData = new ArrayList<>();
    }

    private void itemTable {
         ...
        int index =0;

        Map<String, String> itemselected = new HashMap<>();
        itemselected.put("invoiceNo", textViewInvNo.getText().toString());//d
        itemselected.put("cstName", textViewCstName.getText().toString());//d
        itemselected.put("contact", textViewCstph.getText().toString());//d
        itemselected.put("barcode", barCode.getText().toString());//d
        itemselected.put("desc", itemDesc.getText().toString());//d
        itemselected.put("weight", weightLine.getText().toString());//d
        itemselected.put("rate", rateAmount.getText().toString());//d
        itemselected.put("makingAmt", makingAmount.getText().toString());//d
        itemselected.put("net_rate", netRate.getText().toString());//d
        itemselected.put("itemTotal", itemtotal.getText().toString());//d
        itemselected.put("vat", textViewVat.getText().toString());//d
        itemselected.put("sum_total", textViewSum.getText().toString());//d
        itemselected.put("bill_type", billType);//null

        itemData.add(index,itemselected);
        index++;

         ...
    }
}