fix #145: replace pickerTextStyle with CupertinoThemeData attribute

example/lib/main.dart

@@ -587,7 +587,9 @@ class ExampleApp extends StatelessWidget {
   }
 
   void _openDateTimePicker(
-      BuildContext context, CupertinoDatePickerCalendarType calendarType,) {
+    BuildContext context,
+    CupertinoDatePickerCalendarType calendarType,
+  ) {
     BottomPicker.dateTime(
       minuteInterval: 2,
       headerBuilder: (context) {

lib/bottom_picker.dart

@@ -53,6 +53,8 @@ class BottomPicker extends StatefulWidget {
     this.buttonWidth,
     this.buttonSingleColor,
     this.backgroundColor = Colors.white,
+    this.pickerThemeData,
+    @Deprecated("should use pickerThemeData instead")
     this.pickerTextStyle = const TextStyle(
       fontSize: 14,
       color: Colors.black,
@@ -107,6 +109,8 @@ class BottomPicker extends StatefulWidget {
     this.buttonSingleColor,
     this.backgroundColor = Colors.white,
     this.dateOrder = DatePickerDateOrder.ymd,
+    this.pickerThemeData,
+    @Deprecated("should use pickerThemeData instead")
     this.pickerTextStyle = const TextStyle(
       fontSize: 14,
       color: Colors.black,
@@ -156,6 +160,8 @@ class BottomPicker extends StatefulWidget {
     this.buttonWidth,
     this.buttonSingleColor,
     this.backgroundColor = Colors.white,
+    this.pickerThemeData,
+    @Deprecated("should use pickerThemeData instead")
     this.pickerTextStyle = const TextStyle(
       fontSize: 14,
       color: Colors.black,
@@ -209,6 +215,8 @@ class BottomPicker extends StatefulWidget {
     this.buttonSingleColor,
     this.backgroundColor = Colors.white,
     this.dateOrder = DatePickerDateOrder.ymd,
+    this.pickerThemeData,
+    @Deprecated("should use pickerThemeData instead")
     this.pickerTextStyle = const TextStyle(
       fontSize: 14,
       color: Colors.black,
@@ -260,6 +268,8 @@ class BottomPicker extends StatefulWidget {
     this.buttonWidth,
     this.buttonSingleColor,
     this.backgroundColor = Colors.white,
+    this.pickerThemeData,
+    @Deprecated("should use pickerThemeData instead")
     this.pickerTextStyle = const TextStyle(
       fontSize: 14,
       color: Colors.black,
@@ -313,6 +323,8 @@ class BottomPicker extends StatefulWidget {
     this.buttonWidth,
     this.buttonSingleColor,
     this.backgroundColor = Colors.white,
+    this.pickerThemeData,
+    @Deprecated("should use pickerThemeData instead")
     this.pickerTextStyle = const TextStyle(
       fontSize: 14,
       color: Colors.black,
@@ -358,6 +370,8 @@ class BottomPicker extends StatefulWidget {
     this.buttonWidth,
     this.buttonSingleColor,
     this.backgroundColor = Colors.white,
+    this.pickerThemeData,
+    @Deprecated("should use pickerThemeData instead")
     this.pickerTextStyle = const TextStyle(
       fontSize: 14,
       color: Colors.black,
@@ -425,6 +439,8 @@ class BottomPicker extends StatefulWidget {
     this.buttonWidth,
     this.buttonSingleColor,
     this.backgroundColor = Colors.white,
+    this.pickerThemeData,
+    @Deprecated("should use pickerThemeData instead")
     this.pickerTextStyle = const TextStyle(
       fontSize: 14,
       color: Colors.black,
@@ -607,6 +623,9 @@ class BottomPicker extends StatefulWidget {
   ///by default `TextStyle(fontSize: 14)`
   final TextStyle pickerTextStyle;
 
+  /// The picker theme data
+  final CupertinoTextThemeData? pickerThemeData;
+
   ///define the picker item extent available only for list items picker
   ///by default it's 35
   late double itemExtent;
@@ -903,6 +922,7 @@ class BottomPickerState extends State<BottomPicker> {
                       textStyle: widget.pickerTextStyle,
                       itemExtent: widget.itemExtent,
                       selectionOverlay: widget.selectionOverlay,
+                      pickerThemeData: widget.pickerThemeData,
                     )
                   : widget.bottomPickerType == BottomPickerType.timer
                       ? TimePicker(
@@ -916,6 +936,7 @@ class BottomPickerState extends State<BottomPicker> {
                             selectedTimerDuration = p0;
                           },
                           secondInterval: widget.timerSecondsInterval,
+                          pickerThemeData: widget.pickerThemeData,
                         )
                       : widget.bottomPickerType == BottomPickerType.time
                           ? DatePicker(
@@ -934,6 +955,7 @@ class BottomPickerState extends State<BottomPicker> {
                               itemExtent: widget.itemExtent,
                               showTimeSeparator: widget.showTimeSeparator,
                               calendarType: widget.calendarType,
+                              pickerThemeData: widget.pickerThemeData,
                             )
                           : widget.bottomPickerType == BottomPickerType.dateTime
                               ? DatePicker(
@@ -952,6 +974,7 @@ class BottomPickerState extends State<BottomPicker> {
                                   itemExtent: widget.itemExtent,
                                   showTimeSeparator: widget.showTimeSeparator,
                                   calendarType: widget.calendarType,
+                                  pickerThemeData: widget.pickerThemeData,
                                 )
                               : widget.bottomPickerType ==
                                       BottomPickerType.rangeTime
@@ -978,6 +1001,7 @@ class BottomPickerState extends State<BottomPicker> {
                                       itemExtent: widget.itemExtent,
                                       showTimeSeperator:
                                           widget.showTimeSeparator,
+                                      pickerThemeData: widget.pickerThemeData,
                                     )
                                   : RangePicker(
                                       mode: CupertinoDatePickerMode.date,
@@ -1001,6 +1025,7 @@ class BottomPickerState extends State<BottomPicker> {
                                       itemExtent: widget.itemExtent,
                                       showTimeSeperator:
                                           widget.showTimeSeparator,
+                                      pickerThemeData: widget.pickerThemeData,
                                     ),
             ),
             if (widget.displaySubmitButton)

lib/widgets/date_picker.dart

@@ -14,6 +14,7 @@ class DatePicker extends StatelessWidget {
   final double? itemExtent;
   final bool showTimeSeparator;
   final CupertinoDatePickerCalendarType calendarType;
+  final CupertinoTextThemeData? pickerThemeData;
 
   const DatePicker({
     super.key,
@@ -29,13 +30,14 @@ class DatePicker extends StatelessWidget {
     this.itemExtent = 0,
     this.showTimeSeparator = false,
     required this.calendarType,
+    this.pickerThemeData,
   });
 
   @override
   Widget build(BuildContext context) {
     return CupertinoTheme(
       data: CupertinoThemeData(
-        textTheme: CupertinoTextThemeData(
+        textTheme: pickerThemeData ?? CupertinoTextThemeData(
           dateTimePickerTextStyle: textStyle,
         ),
       ),

lib/widgets/range_picker.dart

@@ -18,6 +18,7 @@ class RangePicker extends StatefulWidget {
   final int? minuteInterval;
   final double? itemExtent;
   final bool showTimeSeperator;
+  final CupertinoTextThemeData? pickerThemeData;
 
   const RangePicker({
     super.key,
@@ -36,6 +37,7 @@ class RangePicker extends StatefulWidget {
     this.minuteInterval,
     this.itemExtent,
     this.showTimeSeperator = false,
+    this.pickerThemeData,
   });
 
   @override
@@ -106,6 +108,7 @@ class _RangePickerState extends State<RangePicker> {
             dateOrder: widget.dateOrder,
             textStyle: widget.textStyle,
             calendarType: CupertinoDatePickerCalendarType.fullWeek,
+            pickerThemeData: widget.pickerThemeData,
           ),
         ),
         Expanded(
@@ -123,6 +126,7 @@ class _RangePickerState extends State<RangePicker> {
             itemExtent: widget.itemExtent,
             showTimeSeparator: widget.showTimeSeperator,
             calendarType: CupertinoDatePickerCalendarType.fullWeek,
+            pickerThemeData: widget.pickerThemeData,
           ),
         ),
       ],

lib/widgets/simple_picker.dart

@@ -10,6 +10,7 @@ class SimplePicker extends StatelessWidget {
   final TextStyle textStyle;
   final double itemExtent;
   final Widget? selectionOverlay;
+  final CupertinoTextThemeData? pickerThemeData;
 
   const SimplePicker({
     super.key,
@@ -19,14 +20,15 @@ class SimplePicker extends StatelessWidget {
     required this.textStyle,
     required this.itemExtent,
     this.selectionOverlay,
+    this.pickerThemeData,
   });
 
   @override
   Widget build(BuildContext context) {
     if (!kIsWeb && (Platform.isIOS || Platform.isAndroid)) {
       return CupertinoTheme(
         data: CupertinoThemeData(
-          textTheme: CupertinoTextThemeData(
+          textTheme: pickerThemeData ?? CupertinoTextThemeData(
             pickerTextStyle: textStyle,
           ),
         ),

lib/widgets/time_picker.dart

@@ -9,6 +9,7 @@ class TimePicker extends StatelessWidget {
   final Function(Duration) onChange;
   final Duration? initialDuration;
   final int secondInterval;
+  final CupertinoTextThemeData? pickerThemeData;
 
   const TimePicker({
     super.key,
@@ -19,13 +20,14 @@ class TimePicker extends StatelessWidget {
     required this.onChange,
     required this.initialDuration,
     this.secondInterval = 1,
+    this.pickerThemeData,
   });
 
   @override
   Widget build(BuildContext context) {
     return CupertinoTheme(
       data: CupertinoThemeData(
-        textTheme: CupertinoTextThemeData(
+        textTheme: pickerThemeData ?? CupertinoTextThemeData(
           dateTimePickerTextStyle: textStyle,
         ),
       ),