private void validateDate(Date date) {
if (date == null) {
throw new IllegalArgumentException("Selected date must be non-null.");
}
if (date.getTime() == 0) {
throw new IllegalArgumentException("Selected date must be non-zero. " + date);
}
if (date.before(minCal.getTime()) || date.after(maxCal.getTime())) {
throw new IllegalArgumentException(
"selectedDate must be between minDate and maxDate. " + date);
}
}
static boolean betweenDates(Date date, Calendar minCal, Calendar maxCal) {
final Date min = minCal.getTime();
return (date.equals(min) || date.after(min)) // >= minCal
&& date.before(maxCal.getTime()); // && < maxCal
}
/**
* Both date parameters must be non-null and their {@link Date#getTime()} must not return 0. Time
* of day will be ignored. For instance, if you pass in {@code minDate} as 11/16/2012 5:15pm and
* {@code maxDate} as 11/16/2013 4:30am, 11/16/2012 will be the first selectable date and
* 11/15/2013 will be the last selectable date ({@code maxDate} is exclusive).
*
* <p>This will implicitly set the {@link SelectionMode} to {@link SelectionMode#SINGLE}. If you
* want a different selection mode, use {@link FluentInitializer#inMode(SelectionMode)} on the
* {@link FluentInitializer} this method returns.
*
* <p>The calendar will be constructed using the given locale. This means that all names (months,
* days) will be in the language of the locale and the weeks start with the day specified by the
* locale.
*
* @param minDate Earliest selectable date, inclusive. Must be earlier than {@code maxDate}.
* @param maxDate Latest selectable date, exclusive. Must be later than {@code minDate}.
*/
public FluentInitializer init(Date minDate, Date maxDate, Locale locale) {
if (minDate == null || maxDate == null) {
throw new IllegalArgumentException(
"minDate and maxDate must be non-null. " + dbg(minDate, maxDate));
}
if (minDate.after(maxDate)) {
throw new IllegalArgumentException(
"minDate must be before maxDate. " + dbg(minDate, maxDate));
}
if (minDate.getTime() == 0 || maxDate.getTime() == 0) {
throw new IllegalArgumentException(
"minDate and maxDate must be non-zero. " + dbg(minDate, maxDate));
}
if (locale == null) {
throw new IllegalArgumentException("Locale is null.");
}
// Make sure that all calendar instances use the same locale.
this.locale = locale;
today = Calendar.getInstance(locale);
minCal = Calendar.getInstance(locale);
maxCal = Calendar.getInstance(locale);
monthCounter = Calendar.getInstance(locale);
monthNameFormat =
new SimpleDateFormat(getContext().getString(R.string.month_name_format), locale);
for (MonthDescriptor month : months) {
month.setLabel(monthNameFormat.format(month.getDate()));
}
weekdayNameFormat =
new SimpleDateFormat(getContext().getString(R.string.day_name_format), locale);
fullDateFormat = DateFormat.getDateInstance(DateFormat.MEDIUM, locale);
this.selectionMode = SelectionMode.SINGLE;
// Clear out any previously-selected dates/cells.
selectedCals.clear();
selectedCells.clear();
highlightedCells.clear();
// Clear previous state.
cells.clear();
months.clear();
minCal.setTime(minDate);
maxCal.setTime(maxDate);
setMidnight(minCal);
setMidnight(maxCal);
displayOnly = false;
// maxDate is exclusive: bump back to the previous day so if maxDate is
// the first of a month,
// we don't accidentally include that month in the view.
maxCal.add(MINUTE, -1);
// Now iterate between minCal and maxCal and build up our list of months
// to show.
monthCounter.setTime(minCal.getTime());
final int maxMonth = maxCal.get(MONTH);
final int maxYear = maxCal.get(YEAR);
while ((monthCounter.get(MONTH) <= maxMonth // Up to, including the
// month.
|| monthCounter.get(YEAR) < maxYear) // Up to the year.
&& monthCounter.get(YEAR) < maxYear + 1) { // But not > next yr.
Date date = monthCounter.getTime();
MonthDescriptor month =
new MonthDescriptor(
monthCounter.get(MONTH), monthCounter.get(YEAR), date, monthNameFormat.format(date));
cells.add(getMonthCells(month, monthCounter));
// Logr.d("Adding month %s", month);
months.add(month);
monthCounter.add(MONTH, 1);
}
validateAndUpdate();
return new FluentInitializer();
}