How to get value in second spinner and third spinner after selected first spinner and calculate

Question

How to get value in second spinner and third spinner after selected first spinner and calculate [to create a simple converter]

here the code, there is no error in my code but this coding not run perfectly, please help me guys..

public class MainActivity extends Activity{

private Spinner firstSpinner, secondSpinner, thirdSpinner;
private Button convert;
EditText input, output;
Double awal, numtemp;
String num, hasil;


ArrayList<String> ChooseType = new ArrayList<String>();
ArrayList<String> ChooseSuhu = new ArrayList<String>();
ArrayList<String> ChooseBerat = new ArrayList<String>();
ArrayList<String> ChoosePanjang = new ArrayList<String>();
ArrayList<String> ChooseData = new ArrayList<String>();


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    firstSpinner = (Spinner) findViewById(R.id.ChooseType);

    secondSpinner = (Spinner) findViewById(R.id.ChooseType1);
    input = (EditText) findViewById(R.id.editText);

    thirdSpinner = (Spinner) findViewById(R.id.ChooseType2);
    output = (EditText) findViewById(R.id.editText1);

    convert = (Button) findViewById(R.id.konBut);


    fillarray();

    firstSpinner.setAdapter(new ArrayAdapter<String>(MainActivity.this,android.R.layout.simple_dropdown_item_1line, ChooseType));
    firstSpinner.setOnItemSelectedListener(new OnItemSelectedListener() {
        @Override
        public void onItemSelected(AdapterView<?> arg0, View arg1, int pos,long arg3) {
            // TODO Auto-generated method stub
            if (pos == 1) {
                secondSpinner.setAdapter(new ArrayAdapter<String>(MainActivity.this, android.R.layout.simple_dropdown_item_1line, ChooseSuhu));
                thirdSpinner.setAdapter(new ArrayAdapter<String>(MainActivity.this, android.R.layout.simple_dropdown_item_1line, ChooseSuhu));
            }
            /*else if(pos == 2){
                secondSpinner.setAdapter(new ArrayAdapter<String>(MainActivity.this, android.R.layout.simple_dropdown_item_1line, ChooseBerat));
                thirdSpinner.setAdapter(new ArrayAdapter<String>(MainActivity.this, android.R.layout.simple_dropdown_item_1line, ChooseBerat));
            }
            else if(pos == 3){
                secondSpinner.setAdapter(new ArrayAdapter<String>(MainActivity.this, android.R.layout.simple_dropdown_item_1line, ChoosePanjang));
                thirdSpinner.setAdapter(new ArrayAdapter<String>(MainActivity.this, android.R.layout.simple_dropdown_item_1line, ChoosePanjang));
            }
            else if(pos == 4){
                secondSpinner.setAdapter(new ArrayAdapter<String>(MainActivity.this, android.R.layout.simple_dropdown_item_1line, ChooseData));
                thirdSpinner.setAdapter(new ArrayAdapter<String>(MainActivity.this, android.R.layout.simple_dropdown_item_1line, ChooseData));
            }*/
        }

        @Override
        public void onNothingSelected(AdapterView<?> arg0) {
            // TODO Auto-generated method stub

        }
    });

    convert.setOnClickListener(new convert());


}


public void onClickListener(){
    secondSpinner.setOnItemSelectedListener(new OnItemSelectedListener(){
        @Override
        public void onItemSelected(AdapterView<?> arg0, View arg1,int arg2, long arg3) {
            // TODO Auto-generated method stub
            if(arg2 == 0){
                num = input.getText().toString();
                awal = Double.parseDouble(num);
            }
        }

        @Override
        public void onNothingSelected(AdapterView<?> arg0) {
            // TODO Auto-generated method stub

        }

    });

    thirdSpinner.setOnItemSelectedListener(new OnItemSelectedListener(){
        @Override
        public void onItemSelected(AdapterView<?> arg0, View arg1,int arg2, long arg3) {
            // TODO Auto-generated method stub
            numtemp = awal;
            hasil = numtemp.toString();
        }

        @Override
        public void onNothingSelected(AdapterView<?> arg0) {
            // TODO Auto-generated method stub

        }

    });
}


private class convert implements OnClickListener {
    @Override
    public void onClick(View v) {
        // TODO Auto-generated method stub
        output.setText(hasil);
    }

}

private void fillarray() {
    // TODO Auto-generated method stub

    ChooseType.add("Choose");
    ChooseType.add("Suhu");
    ChooseType.add("Berat");
    ChooseType.add("Panjang");
    ChooseType.add("Data");


    ChooseSuhu.add("celcius");
    ChooseSuhu.add("reamur");
    ChooseSuhu.add("fahrenheit");
    ChooseSuhu.add("kelvin");


    ChooseBerat.add("pon");
    ChooseBerat.add("ton");
    ChooseBerat.add("miligram");
    ChooseBerat.add("gram");
    ChooseBerat.add("kilogram");
    ChooseBerat.add("oz");


    ChoosePanjang.add("centimeter");
    ChoosePanjang.add("feet");
    ChoosePanjang.add("inche");
    ChoosePanjang.add("kilometer");
    ChoosePanjang.add("meter");
    ChoosePanjang.add("mile");
    ChoosePanjang.add("centimeter");


    ChooseData.add("bit");
    ChooseData.add("byte");
    ChooseData.add("kilobit");
    ChooseData.add("kilobyte");
    ChooseData.add("megabit");
    ChooseData.add("megabyte");
    ChooseData.add("gigabit");
    ChooseData.add("gigabyte");
    ChooseData.add("terabit");
    ChooseData.add("terabyte");
}

}

Answer 1

Try this

OtherSpinner.getSelectedItem().toString();