Odd Android Spinner behavior

Question

This is the code to populate my spinner.

The code:

String[] rcs = new String[review_cycles.length];
for (int i = 0; i < review_cycles.length; i++         


        

Answer 1

When I select a value from the spinner, the code is executed twice.

As I reminded you in the comments, Spinners call onItemSelected() when they load the default value. This feature is useful when you know about it, but since it is not what the average developer expects it is problematic as well.

The Spinner will also call onItemSelected() when the user re-selects the current value... When I want to avoid both of these false alarms I use something like this:

spinner.setOnItemSelectedListener(new OnItemSelectedListener() {
    int previous = -1;
    @Override
    public void onItemSelected(AdapterView parent, View view, int position, long id) {
        if(previous != position && previous < -1) {
            Log.v("Example", "Selected: " + position);
            // Do something
        }
        previous = position;
    }

    @Override
    public void onNothingSelected(AdapterView parent) {}
});