Question

I am using a android spinner to select among city names.
The problem is that the line where I setAdapter() is crashing my application.

`

   selectCity = (Spinner) findViewById(R.id.spinnerSelectCity);
            ArrayAdapter<CharSequence> spinadapter = ArrayAdapter.createFromResource(main.this, R.array.cities, android.R.layout.simple_spinner_item);  
            spinadapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);

        selectCity.setAdapter(spinadapter);`

selectCity.setAdapter(spinadapter);// line is throwing a java.lang.nullpointerexception.

I also tried using array adapter constructor and using that but same problem.

Answer 1

selectCity is null….

Check the xml you use as view, does it have any spinner whose ID is spinnerSelectCity?

if not

1. Replace the layout which is having spinnerSelectCity in it
2. You may have used it in another layout that will not be on use….. move spinnerSelectCityfrom that layout to the layout you use…