Android Spinner Dialog Is Not Populating?

I have an activity made up of two fragments. On the left is a sidebar, on the right is a MapView (See screenshot below). On the left I have a spinner that will be populated with o

Solution 1:

The problem is not the Spinner, the problem is that you are inflating two Spinners. One in on onCreateView method and the other in this line :

this.getActivity().setContentView(R.layout.sidefragment);

And only one the spinner with the provider... so I recommend you to set all your GUI variable at onCreationView like this:

@Overridepublic View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
    Viewv= inflater.inflate(R.layout.sidefragment, container, true);
    finalSpinners= (Spinner) v.findViewById(
            R.id.track_spinner);
    ArrayAdapter<String> adapter = newArrayAdapter<String>(this
            .getActivity().getBaseContext(),
            android.R.layout.simple_spinner_item, tracks);
    s.setAdapter(adapter);

    s.setOnItemSelectedListener(newOnItemSelectedListener() {
        @OverridepublicvoidonItemSelected(AdapterView<?> arg0, View arg1,
                int arg2, long arg3) {
            intitem= s.getSelectedItemPosition();
            Toast.makeText(SideFragment.this.getActivity().getBaseContext(),
                    "clicked "+item, Toast.LENGTH_SHORT).show();
        }

            @OverridepublicvoidonNothingSelected(AdapterView<?> arg0) {
        }
    });
    return v;
}

And remove the overrided method onCreate.

Solution 2:

this is how I always have done my spinners

ArrayAdapter<CharSequence> cAdapter;
    cAdapter = ArrayAdapter.createFromResource(this, R.array.colors,android.R.layout.simple_spinner_item);
    int cSpinnerDD = android.R.layout.simple_spinner_dropdown_item;
    cAdapter.setDropDownViewResource(cSpinnerDD);
    color.setAdapter(cAdapter);

give that a try