android 两次调用DatePickerDialog.onDateSet（）

在4.2.2版本号上调用系统的DatePickerDialog，发现点击确定时系统调用onDateSet（）两次，须要过滤当中的一次。

Calendar mCalendar = Calendar.getInstance();

mCalendar.add(Calendar.DAY_OF_YEAR, 1);

final DatePickerDialog dateDialog = new DatePickerDialog(this, new DatePickerDialog.OnDateSetListener() {

    boolean mFired = false;

    public void onDateSet(final DatePicker view, final int year, final int monthOfYear, final int dayOfMonth) {

        Log.i("PEW PEW", "Double fire check");

        if (mFired == true) {

            Log.i("PEW PEW", "Double fire occured. Silently-ish returning");

            return;

        } else {

            //first time mFired

            mFired = true;

        }

        //Normal date picking logic goes here

    }

}, mCalendar.get(Calendar.YEAR), mCalendar.get(Calendar.MONTH), mCalendar.get(Calendar.DAY_OF_MONTH));

dateDialog.show();

參考：https://code.google.com/p/android/issues/detail?id=64895