Question

when the user enters a number in a edittext my app then creates and displays that many spinners. The user will then select an item from each spinner and then click a save button. I have looked on the internet but have been unable to find a way to retrieve the position from the spinners. Here is how I created the spinners:

//numStockTanks is the number of spinners to be created
numStockTanks = Integer.parseInt(numOfStockTanks.getText().toString());             
    // creates all the fields
    for(int i = 1; i <= numStockTanks; i++) {
        TableRow tR = new TableRow(this);
        // creates the textView
        tV1 = new TextView(this);
        tV1.setText("Stock Tank #" + i + " size: ");

        // add spinner to row
        spinner = new Spinner(this);
        ArrayAdapter<CharSequence> adapterStockTankSize2 = ArrayAdapter.createFromResource(
                this, R.array.StockTankSize, android.R.layout.simple_spinner_item);
        adapterStockTankSize2.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
        spinner.setAdapter(adapterStockTankSize2);
        spinner.setId(1000 + i);

        // add the TextView and the editText to the new TableRow
        tR.addView(tV1);
        tR.addView(spinner);

        // add the TableRow to the TableLayout
        tL.addView(tR,new TableLayout.LayoutParams(
                LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));    
    } // end for statement
} // end getNumberCreateSpinner ()

I have attemped several different way to get the position of the spinners but I cant seem to figure it out. Here is what I currently have:

ArrayList<Integer> mArraySpinner = new ArrayList<Integer>();
for (int i = 0; i < numStockTanks; i++) {
           spinner = (Spinner) findViewById(1000 + i);
           if (spinner.getSelectedItemPosition() == 1) {
               mArraySpinner.add(100);
           } else if (spinner.getSelectedItemPosition() == 2) {
               mArraySpinner.add(200);
           } else if (spinner.getSelectedItemPosition() == 3) {
               mArraySpinner.add(210);
          } else if (spinner.getSelectedItemPosition() == 4) {
               mArraySpinner.add(295);
           } else if (spinner.getSelectedItemPosition() == 5) {
               mArraySpinner.add(400);
          } else mArraySpinner.add(0);
    } // end for statement

Thanks for your help

Edit:
Updated to my latest attempt after the first answer

Edit Edit:
When I debug the line “spinner = (Spinner) findViewById(1000 + i);” it says null so I know that I am not pointing to my spinner correctely this is what I need the help with

Edit: bump

Answer 1

I would set an onItemSelectedListener when you create the spinner (inside the loop where you create the spinner), and use that to set the value into an array that is a class field.

mArraySpinner = new Array<Integer>[numStockTanks];
for(int i = 1; i <= numStockTanks; i++) { 

      // code to set spinner adapter, etc.

spinner.setOnItemSelectedListener(new OnItemSelectedListener() {
    @Override
    public void onNothingSelected(AdapterView<?> parent) {
    }
    @Override
    public void onItemSelected(AdapterView<?> parent, View view, int pos, long id) {
       mArraySpinner[i] = spinner.getSelectedItemPosition();
    }
});