From baeb4975ca045210a2a69458ec2474c6135b382d Mon Sep 17 00:00:00 2001
From: FineFindus <63370021+FineFindus@users.noreply.github.com>
Date: Thu, 15 Apr 2021 12:22:33 +0200
Subject: [PATCH] added animatedPageScrolling option

---
 example/lib/pages/basics_example.dart |  1 -
 lib/src/table_calendar.dart           |  9 +++++++--
 lib/src/table_calendar_base.dart      | 12 +++++++++---
 3 files changed, 16 insertions(+), 6 deletions(-)

diff --git a/example/lib/pages/basics_example.dart b/example/lib/pages/basics_example.dart
index 156118b0..6a8f91b6 100644
--- a/example/lib/pages/basics_example.dart
+++ b/example/lib/pages/basics_example.dart
@@ -27,7 +27,6 @@ class _TableBasicsExampleState extends State<TableBasicsExample> {
         lastDay: kLastDay,
         focusedDay: _focusedDay,
         calendarFormat: _calendarFormat,
-        pageJumpingEnabled: true,
         selectedDayPredicate: (day) {
           // Use `selectedDayPredicate` to determine which day is currently selected.
           // If this returns true, then `day` will be marked as selected.
diff --git a/lib/src/table_calendar.dart b/lib/src/table_calendar.dart
index bf14a594..0149cf34 100644
--- a/lib/src/table_calendar.dart
+++ b/lib/src/table_calendar.dart
@@ -94,6 +94,9 @@ class TableCalendar<T> extends StatefulWidget {
   /// When set to true, `TableCalendar` will fill available height.
   final bool shouldFillViewport;
 
+  /// When set to true, an animation is displayed when changing the visible month.
+  final bool animatedPageScrolling;
+
   /// Used for setting the height of `TableCalendar`'s rows.
   final double rowHeight;
 
@@ -107,12 +110,12 @@ class TableCalendar<T> extends StatefulWidget {
   final Curve formatAnimationCurve;
 
   /// Specifies the duration of page change animation that takes place when the visible month changes,
-  /// either by tapping the left or right chevron or when `pageJumpingEnabled` is set to true and
+  /// either by tapping the left or right chevron or when `pageJumpingEnabled` and `animatedPageScrolling` are set to true and
   /// the user clicks outside of a month.
   final Duration pageAnimationDuration;
 
   /// Specifies the curve of page change animation that takes place when the visible month changes,
-  /// either by tapping the left or right chevron or when `pageJumpingEnabled` is set to true and
+  /// either by tapping the left or right chevron or when `pageJumpingEnabled` and `animatedPageScrolling` are set to true and
   /// the user clicks outside of a month.
   final Curve pageAnimationCurve;
 
@@ -217,6 +220,7 @@ class TableCalendar<T> extends StatefulWidget {
     this.pageJumpingEnabled = false,
     this.sixWeekMonthsEnforced = false,
     this.shouldFillViewport = false,
+    this.animatedPageScrolling = false,
     this.rowHeight = 52.0,
     this.daysOfWeekHeight = 16.0,
     this.formatAnimationDuration = const Duration(milliseconds: 200),
@@ -484,6 +488,7 @@ class _TableCalendarState<T> extends State<TableCalendar<T>> {
             rowHeight: widget.rowHeight,
             formatAnimationDuration: widget.formatAnimationDuration,
             formatAnimationCurve: widget.formatAnimationCurve,
+            animatedPageScrolling: widget.animatedPageScrolling,
             pageChangeAnimationDuration: widget.pageAnimationDuration,
             pageChangeAnimationCurve: widget.pageAnimationCurve,
             availableCalendarFormats: widget.availableCalendarFormats,
diff --git a/lib/src/table_calendar_base.dart b/lib/src/table_calendar_base.dart
index ed7ba4f9..e37e16d8 100644
--- a/lib/src/table_calendar_base.dart
+++ b/lib/src/table_calendar_base.dart
@@ -22,6 +22,7 @@ class TableCalendarBase extends StatefulWidget {
   final Decoration? rowDecoration;
   final Duration formatAnimationDuration;
   final Curve formatAnimationCurve;
+  final bool animatedPageScrolling;
   final Duration pageChangeAnimationDuration;
   final Curve pageChangeAnimationCurve;
   final StartingDayOfWeek startingDayOfWeek;
@@ -48,6 +49,7 @@ class TableCalendarBase extends StatefulWidget {
     this.rowDecoration,
     this.formatAnimationDuration = const Duration(milliseconds: 200),
     this.formatAnimationCurve = Curves.linear,
+    this.animatedPageScrolling = false,
     this.pageChangeAnimationDuration = const Duration(milliseconds: 200),
     this.pageChangeAnimationCurve = Curves.linear,
     this.startingDayOfWeek = StartingDayOfWeek.sunday,
@@ -151,9 +153,13 @@ class _TableCalendarBaseState extends State<TableCalendarBase>
     final rowCount = _getRowCount(widget.calendarFormat, _focusedDay);
     _pageHeight.value = _getPageHeight(rowCount);
 
-    _pageController.animateToPage(currentIndex,
-        duration: widget.pageChangeAnimationDuration,
-        curve: widget.pageChangeAnimationCurve);
+    if (widget.animatedPageScrolling) {
+      _pageController.animateToPage(currentIndex,
+          duration: widget.pageChangeAnimationDuration,
+          curve: widget.pageChangeAnimationCurve);
+    } else {
+      _pageController.jumpToPage(currentIndex);
+    }
     _pageCallbackDisabled = false;
   }