How to disable onItemSelectedListener to be invoked when setting selected item by code

Question

Just wondering how you handle the following problem: a result is calculated depending on two spinners\' selected items. To handle the UI things, i.e. a user picks a new item in

Answer 1

When Spinner.setSelection(position) is used, it always activates setOnItemSelectedListener()

To avoid firing the code twice I use this solution:

private mIsSpinnerFirstCall=true;

...
Spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
    public void onItemSelected(AdapterView parent, View view, int position, long id) {
        //If a new value is selected (avoid activating on setSelection())
        if(!mIsSpinnerFirstCall) {
            // Your code goes gere
        }
        mIsSpinnerFirstCall = false;
    }

    public void onNothingSelected(AdapterView arg0) {
    }
});

This solution is valid when you are sure that Spinner.setSelection(position) us used. Also, it is important to set mIsSpinnerFirstCall=true each time before using Spinner.setSelection(position)