将数据加载到android Spinner，选择项目时崩溃

Question

I have this method and and it returns three values as shown in the screenshot below,

List<String> resultSizes = getFilteredSizes(crustSelectedItem);

And I'm loading these 3 data to android spinner, then I'm using this code of piece to get the spinner value I have selected,

String StrSizeSPPosition = String.valueOf(sizeSP.getSelectedItemPosition()); 

it says 0 .

Then I have a string list as sizePrice , and it returns the below shown values,

Im using this piece of code to get the selected item's respected value using this,

StrPriceSize = sizePrice.get(SizeSPPosition); // crashes here
PriceSize = Double.parseDouble(StrPriceSize);
System.out.println("PriceSize = " + PriceSize);

My problem is when I select pan large then it should give the output as 1560 because the I'm getting the index positions, but it gives 450. and when I select other value it crashes giving an exception.

this is the exception,

this is the logcat output

Complete code

                        List<String> resultSizes = getFilteredSizes(crustSelectedItem);

                        ArrayAdapter<String> dataAdapterDes = new ArrayAdapter<String>(
                                Activity.this,
                                android.R.layout.simple_spinner_item,
                                resultSizes);
                        dataAdapterDes
                                .setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
                        sizeSP.setAdapter(dataAdapterDes);

                        sizeSP.setOnItemSelectedListener(new MyOnItemSelectedListener(
                                Activity.this) {

                            public void onNothingSelected(AdapterView<?> arg0) {
                            }

                            @Override
                            public void onItemSelected(AdapterView<?> parent,
                                    View view, int position, long id) {

                                String sizeSelectedItem = sizeSP
                                        .getSelectedItem().toString();

                                String StrSizeSPPosition = String
                                        .valueOf(sizeSP
                                                .getSelectedItemPosition());

                                System.out.println("sizeSelectedItem = "
                                        + sizeSelectedItem);
                                System.out.println("StrSizeSPPosition = "
                                        + StrSizeSPPosition);

                                SizeSPPosition = Integer
                                        .parseInt(StrSizeSPPosition);

                                String StrPriceSize = sizePrice
                                        .get(SizeSPPosition);
                                PriceSize = Double.parseDouble(StrPriceSize);

(I have another option it has only 1 value when I'm selecting that it work properly without crashing, i think I'm getting this issue only when I have data mora that 1) I hope my question is clear enough to understand. If you need more details please ask to make the question clear. Any help would be appreciated to sort out this.

Answer 1

Instead of this line of code :-

String StrPriceSize = sizePrice.get(SizeSPPosition);
PriceSize = Double.parseDouble(StrPriceSize);

Put this code:-

String StrPriceSize = resultSizes.get(SizeSPPosition);
 PriceSize = Double.parseDouble(StrPriceSize);

or try this:-

try to print Log.d("sizePriceList", sizePrice+""); in the code and check how many elements you are getting when selecting item from spinner. your logcat showing an exception of indexoutofbound that means you are getting only one item in sizePrice