Android spinner close

Question

I have an activity with a spinner, and I was wondering if it is possible to close the spinner programmatically, if the user has opened it.

The whole story is that in the background I am running a process on a separate thread. When the process has finished, I invoke a Handler on the main activity and, depending on the outcome, I perform some tasks. It is then that I want to close the spinner, it the user has opened it.

The spinner is in the main.xml layout:

<Spinner android:id="@+id/birthPlaceSpinner" android:layout_weight="1" 
android:layout_height="wrap_content" android:prompt="@string/select"
android:layout_width="fill_parent" />

and this is the Handler:

private class BirthplaceChangedHandler extends Handler {

    @Override
    public void handleMessage(Message msg) {
        String placeFilterStr = birthPlaceFilterText.getText().toString();
        if ("".equals(placeFilterStr) || placeFilterStr == null || validNewAddresses.isEmpty()) {
            birthPlaceSpinner.setEnabled(false);
            hideGeoLocationInformation();
        } else {
            birthPlaceSpinner.setEnabled(true);
        }
        adapter = new ArrayAdapter<String>(getApplicationContext(), R.layout.multiline_spinner_dropdown_item, validNewAddressesStr)
        birthPlaceSpinner.setAdapter(adapter);
    }
}

Cheers!

Answer 1

  public static void hideSpinnerDropDown(Spinner spinner) {
    try {
        Method method = Spinner.class.getDeclaredMethod("onDetachedFromWindow");
        method.setAccessible(true);
        method.invoke(spinner);
    } catch (Exception e) {
        e.printStackTrace();
    }
}