Expand/open a spinner on click of another item/widget?
Just call Spinner.performClick() to expand Spinner without user interaction...
final Spinner spinner = (Spinner) findViewById(R.id.spinner); Button okButton = (Button) findViewById(R.id.yesButton); okButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { if(spinner.getSelectedItem() == null) { // user selected nothing... spinner.performClick(); } } });