android 日付ダイアログ

gistfile1.java

    private void showDateDialog() {

        final Calendar calendar = Calendar.getInstance();
        final int year = calendar.get(Calendar.YEAR);
        final int month = calendar.get(Calendar.MONTH);
        final int day = calendar.get(Calendar.DAY_OF_MONTH);

        final DatePickerDialog datePickerDialog = new DatePickerDialog(
                this,
                new DatePickerDialog.OnDateSetListener() {
                    @Override
                    public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
                        Toast.makeText(MainActivity.this,
                                String.valueOf(year) + "/" +
                                        String.valueOf(monthOfYear + 1) + "/" +
                                        String.valueOf(dayOfMonth),
                                Toast.LENGTH_SHORT).show();
                    }
                },
                year, month, day);
        datePickerDialog.show();
    }