public override Widget build(BuildContext context)
{
ThemeData themeData = Theme.of(context);
MaterialLocalizations localizations = MaterialLocalizations.of(context);
int year = this.displayedMonth.Year;
int month = this.displayedMonth.Month;
int daysInMonth = getDaysInMonth(year, month);
int firstDayOffset = this._computeFirstDayOffset(year, month, localizations);
List <Widget> labels = new List <Widget>();
labels.AddRange(this._getDayHeaders(themeData.textTheme.caption, localizations));
for (int i = 0; true; i += 1)
{
int day = i - firstDayOffset + 1;
if (day > daysInMonth)
{
break;
}
if (day < 1)
{
labels.Add(new Container());
}
else
{
DateTime dayToBuild = new DateTime(year, month, day);
bool disabled = dayToBuild > this.lastDate ||
dayToBuild < this.firstDate ||
(this.selectableDayPredicate != null &&
!this.selectableDayPredicate(dayToBuild));
BoxDecoration decoration = null;
TextStyle itemStyle = themeData.textTheme.body1;
bool isSelectedDay = this.selectedDate.Year == year && this.selectedDate.Month == month &&
this.selectedDate.Day == day;
if (isSelectedDay)
{
itemStyle = themeData.accentTextTheme.body2;
decoration = new BoxDecoration(
color: themeData.accentColor,
shape: BoxShape.circle
);
}
else if (disabled)
{
itemStyle = themeData.textTheme.body1.copyWith(color: themeData.disabledColor);
}
else if (this.currentDate.Year == year && this.currentDate.Month == month &&
this.currentDate.Day == day)
{
itemStyle = themeData.textTheme.body2.copyWith(color: themeData.accentColor);
}
Widget dayWidget = new Container(
decoration: decoration,
child: new Center(
child: new Text(localizations.formatDecimal(day), style: itemStyle)
)
);
if (!disabled)
{
dayWidget = new GestureDetector(
behavior: HitTestBehavior.opaque,
onTap: () => { this.onChanged(dayToBuild); },
child: dayWidget,
dragStartBehavior: this.dragStartBehavior
);
}
labels.Add(dayWidget);
}
}
return(new Padding(
padding: EdgeInsets.symmetric(horizontal: 8.0f),
child: new Column(
children: new List <Widget> {
new Container(
height: DatePickerUtils._kDayPickerRowHeight,
child: new Center(
child: new Text(
localizations.formatMonthYear(this.displayedMonth),
style: themeData.textTheme.subhead
)
)
),
new Flexible(
child: GridView.custom(
gridDelegate: DatePickerUtils._kDayPickerGridDelegate,
childrenDelegate: new SliverChildListDelegate(labels, addRepaintBoundaries: false)
)
)
}
)
));
}
public override Widget build(BuildContext context)
{
ColorScheme colorScheme = Theme.of(context).colorScheme;
MaterialLocalizations localizations = MaterialLocalizations.of(context);
TextTheme textTheme = Theme.of(context).textTheme;
TextStyle dayStyle = textTheme.caption;
Color enabledDayColor = colorScheme.onSurface.withOpacity(0.87f);
Color disabledDayColor = colorScheme.onSurface.withOpacity(0.38f);
Color selectedDayColor = colorScheme.onPrimary;
Color selectedDayBackground = colorScheme.primary;
Color todayColor = colorScheme.primary;
int year = displayedMonth.Year;
int month = displayedMonth.Month;
int daysInMonth = utils.getDaysInMonth(year, month);
int dayOffset = utils.firstDayOffset(year, month, localizations);
List <Widget> dayItems = new List <Widget>();
// 1-based day of month, e.g. 1-31 for January, and 1-29 for February on
// a leap year.
int day = -dayOffset;
while (day < daysInMonth)
{
day++;
if (day < 1)
{
dayItems.Add(new Container());
}
else
{
DateTime dayToBuild = new DateTime(year, month, day);
bool isDisabled = dayToBuild > lastDate ||
dayToBuild < firstDate ||
(selectableDayPredicate != null && !selectableDayPredicate(dayToBuild));
BoxDecoration decoration = null;
Color dayColor = enabledDayColor;
bool isSelectedDay = utils.isSameDay(selectedDate, dayToBuild);
if (isSelectedDay)
{
// The selected day gets a circle background highlight, and a
// contrasting text color.
dayColor = selectedDayColor;
decoration = new BoxDecoration(
color: selectedDayBackground,
shape: BoxShape.circle
);
}
else if (isDisabled)
{
dayColor = disabledDayColor;
}
else if (utils.isSameDay(currentDate, dayToBuild))
{
// The current day gets a different text color and a circle stroke
// border.
dayColor = todayColor;
decoration = new BoxDecoration(
border: Border.all(color: todayColor, width: 1),
shape: BoxShape.circle
);
}
Widget dayWidget = new Container(
decoration: decoration,
child: new Center(
child: new Text(localizations.formatDecimal(day), style: dayStyle.apply(color: dayColor))
)
);
if (!isDisabled)
{
dayWidget = new GestureDetector(
behavior: HitTestBehavior.opaque,
onTap: () => onChanged(dayToBuild),
child: dayWidget
);
}
dayItems.Add(dayWidget);
}
}
return(new Padding(
padding: EdgeInsets.symmetric(
horizontal: material_._monthPickerHorizontalPadding
),
child: GridView.custom(
physics: new ClampingScrollPhysics(),
gridDelegate: material_._dayPickerGridDelegate,
childrenDelegate: new SliverChildListDelegate(
dayItems,
addRepaintBoundaries: false
)
)
));
}
