Init
This commit is contained in:
419
lib/pickers/block_picker.dart
Normal file
419
lib/pickers/block_picker.dart
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import 'package:flutter/material.dart';
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import 'package:flutter_colorpicker/flutter_colorpicker.dart';
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const List<Color> colors = [
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Colors.red,
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Colors.pink,
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Colors.purple,
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Colors.deepPurple,
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Colors.indigo,
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Colors.blue,
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Colors.lightBlue,
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Colors.cyan,
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Colors.teal,
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Colors.green,
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Colors.lightGreen,
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Colors.lime,
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Colors.yellow,
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Colors.amber,
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Colors.orange,
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Colors.deepOrange,
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Colors.brown,
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Colors.grey,
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Colors.blueGrey,
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Colors.black,
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];
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class BlockColorPickerExample extends StatefulWidget {
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const BlockColorPickerExample({
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Key? key,
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required this.pickerColor,
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required this.onColorChanged,
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required this.pickerColors,
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required this.onColorsChanged,
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required this.colorHistory,
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}) : super(key: key);
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final Color pickerColor;
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final ValueChanged<Color> onColorChanged;
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final List<Color> pickerColors;
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final ValueChanged<List<Color>> onColorsChanged;
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final List<Color> colorHistory;
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@override
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State<BlockColorPickerExample> createState() => _BlockColorPickerExampleState();
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}
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class _BlockColorPickerExampleState extends State<BlockColorPickerExample> {
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int _portraitCrossAxisCount = 4;
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int _landscapeCrossAxisCount = 5;
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double _borderRadius = 30;
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double _blurRadius = 5;
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double _iconSize = 24;
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Widget pickerLayoutBuilder(BuildContext context, List<Color> colors, PickerItem child) {
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Orientation orientation = MediaQuery.of(context).orientation;
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return SizedBox(
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width: 300,
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height: orientation == Orientation.portrait ? 360 : 240,
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child: GridView.count(
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crossAxisCount: orientation == Orientation.portrait ? _portraitCrossAxisCount : _landscapeCrossAxisCount,
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crossAxisSpacing: 5,
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mainAxisSpacing: 5,
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children: [for (Color color in colors) child(color)],
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),
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);
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}
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Widget pickerItemBuilder(Color color, bool isCurrentColor, void Function() changeColor) {
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return Container(
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margin: const EdgeInsets.all(8),
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decoration: BoxDecoration(
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borderRadius: BorderRadius.circular(_borderRadius),
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color: color,
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boxShadow: [BoxShadow(color: color.withOpacity(0.8), offset: const Offset(1, 2), blurRadius: _blurRadius)],
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),
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child: Material(
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color: Colors.transparent,
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child: InkWell(
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onTap: changeColor,
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borderRadius: BorderRadius.circular(_borderRadius),
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child: AnimatedOpacity(
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duration: const Duration(milliseconds: 250),
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opacity: isCurrentColor ? 1 : 0,
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child: Icon(
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Icons.done,
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size: _iconSize,
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color: useWhiteForeground(color) ? Colors.white : Colors.black,
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),
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),
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),
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),
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);
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}
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@override
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Widget build(BuildContext context) {
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return ListView(
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children: [
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const SizedBox(height: 20),
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Center(
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child: ElevatedButton(
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onPressed: () {
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showDialog(
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context: context,
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builder: (BuildContext context) {
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return AlertDialog(
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titlePadding: const EdgeInsets.all(0),
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contentPadding: const EdgeInsets.all(25),
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content: SingleChildScrollView(
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child: Text(
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'''
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Widget pickerLayoutBuilder(BuildContext context, List<Color> colors, PickerItem child) {
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Orientation orientation = MediaQuery.of(context).orientation;
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return SizedBox(
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width: 300,
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height: orientation == Orientation.portrait ? 360 : 240,
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child: GridView.count(
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crossAxisCount: orientation == Orientation.portrait ? $_portraitCrossAxisCount : $_landscapeCrossAxisCount,
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crossAxisSpacing: 5,
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mainAxisSpacing: 5,
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children: [for (Color color in colors) child(color)],
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),
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);
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}
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''',
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),
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),
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);
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},
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);
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},
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child: Icon(Icons.code, color: useWhiteForeground(widget.pickerColor) ? Colors.white : Colors.black),
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style: ElevatedButton.styleFrom(
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backgroundColor: widget.pickerColor,
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shadowColor: widget.pickerColor.withOpacity(1),
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elevation: 10,
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),
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),
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),
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ListTile(
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title: const Text('Portrait Cross Axis Count'),
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subtitle: Text(_portraitCrossAxisCount.toString()),
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trailing: SizedBox(
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width: 200,
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child: Slider(
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value: _portraitCrossAxisCount.toDouble(),
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min: 1,
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max: 10,
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divisions: 9,
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label: _portraitCrossAxisCount.toString(),
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onChanged: (double value) => setState(() => _portraitCrossAxisCount = value.round()),
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),
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),
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),
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ListTile(
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title: const Text('Landscape Cross Axis Count'),
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subtitle: Text(_landscapeCrossAxisCount.toString()),
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trailing: SizedBox(
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width: 200,
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child: Slider(
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value: _landscapeCrossAxisCount.toDouble(),
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min: 1,
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max: 10,
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divisions: 9,
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label: _landscapeCrossAxisCount.toString(),
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onChanged: (double value) => setState(() => _landscapeCrossAxisCount = value.round()),
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),
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),
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),
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const Divider(),
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const SizedBox(height: 20),
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Center(
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child: ElevatedButton(
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onPressed: () {
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showDialog(
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context: context,
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builder: (BuildContext context) {
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return AlertDialog(
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titlePadding: const EdgeInsets.all(0),
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contentPadding: const EdgeInsets.all(25),
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content: SingleChildScrollView(
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child: Text(
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'''
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Widget pickerItemBuilder(Color color, bool isCurrentColor, void Function() changeColor) {
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return Container(
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margin: const EdgeInsets.all(8),
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decoration: BoxDecoration(
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borderRadius: BorderRadius.circular($_borderRadius),
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color: color,
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boxShadow: [BoxShadow(color: color.withOpacity(0.8), offset: const Offset(1, 2), blurRadius: $_blurRadius)],
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),
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child: Material(
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color: Colors.transparent,
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child: InkWell(
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onTap: changeColor,
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borderRadius: BorderRadius.circular(_borderRadius),
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child: AnimatedOpacity(
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duration: const Duration(milliseconds: 250),
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opacity: isCurrentColor ? 1 : 0,
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child: Icon(
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Icons.done,
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size: $_iconSize,
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color: useWhiteForeground(color) ? Colors.white : Colors.black,
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),
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),
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),
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),
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);
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}
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''',
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),
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),
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);
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},
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);
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},
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child: Icon(Icons.code, color: useWhiteForeground(widget.pickerColor) ? Colors.white : Colors.black),
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style: ElevatedButton.styleFrom(
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backgroundColor: widget.pickerColor,
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shadowColor: widget.pickerColor.withOpacity(1),
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elevation: 10,
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),
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),
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),
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ListTile(
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title: const Text('Border Radius'),
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subtitle: Text(_borderRadius.toString()),
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trailing: SizedBox(
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width: 200,
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child: Slider(
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value: _borderRadius,
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min: 0,
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max: 30,
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divisions: 30,
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label: _borderRadius.toString(),
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onChanged: (double value) => setState(() => _borderRadius = value.round().toDouble()),
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),
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),
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),
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ListTile(
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title: const Text('Blur Radius'),
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subtitle: Text(_blurRadius.toString()),
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trailing: SizedBox(
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width: 200,
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child: Slider(
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value: _blurRadius,
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min: 0,
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max: 5,
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divisions: 5,
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label: _blurRadius.toString(),
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onChanged: (double value) => setState(() => _blurRadius = value.round().toDouble()),
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),
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),
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),
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ListTile(
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title: const Text('Icon Size'),
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subtitle: Text(_iconSize.toString()),
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trailing: SizedBox(
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width: 200,
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child: Slider(
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value: _iconSize,
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min: 1,
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max: 50,
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divisions: 49,
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label: _iconSize.toString(),
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onChanged: (double value) => setState(() => _iconSize = value.round().toDouble()),
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),
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),
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),
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const Divider(),
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const SizedBox(height: 20),
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Row(
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mainAxisSize: MainAxisSize.min,
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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ElevatedButton(
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onPressed: () {
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showDialog(
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context: context,
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builder: (BuildContext context) {
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return AlertDialog(
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title: const Text('Select a color'),
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content: SingleChildScrollView(
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child: BlockPicker(
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pickerColor: widget.pickerColor,
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onColorChanged: widget.onColorChanged,
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availableColors: widget.colorHistory.isNotEmpty ? widget.colorHistory : colors,
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layoutBuilder: pickerLayoutBuilder,
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itemBuilder: pickerItemBuilder,
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),
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),
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);
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},
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);
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},
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child: Text(
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'Blocky Color Picker',
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style: TextStyle(color: useWhiteForeground(widget.pickerColor) ? Colors.white : Colors.black),
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),
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style: ElevatedButton.styleFrom(
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backgroundColor: widget.pickerColor,
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shadowColor: widget.pickerColor.withOpacity(1),
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elevation: 10,
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),
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),
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const SizedBox(width: 20),
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ElevatedButton(
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onPressed: () {
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showDialog(
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context: context,
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builder: (BuildContext context) {
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return const AlertDialog(
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titlePadding: EdgeInsets.all(0),
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contentPadding: EdgeInsets.all(25),
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content: SingleChildScrollView(
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child: Text(
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'''
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BlockPicker(
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pickerColor: color,
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onColorChanged: changeColor,
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availableColors: colors,
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layoutBuilder: pickerLayoutBuilder,
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itemBuilder: pickerItemBuilder,
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)
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''',
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),
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),
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);
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},
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);
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},
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child: Icon(Icons.code, color: useWhiteForeground(widget.pickerColor) ? Colors.white : Colors.black),
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style: ElevatedButton.styleFrom(
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backgroundColor: widget.pickerColor,
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shadowColor: widget.pickerColor.withOpacity(1),
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elevation: 10,
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),
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),
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],
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),
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const SizedBox(height: 20),
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const Divider(),
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const SizedBox(height: 20),
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Row(
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mainAxisSize: MainAxisSize.min,
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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ElevatedButton(
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onPressed: () {
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showDialog(
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context: context,
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builder: (BuildContext context) {
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return AlertDialog(
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title: const Text('Select colors'),
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content: SingleChildScrollView(
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child: MultipleChoiceBlockPicker(
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pickerColors: widget.pickerColors,
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onColorsChanged: widget.onColorsChanged,
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availableColors: widget.colorHistory.isNotEmpty ? widget.colorHistory : colors,
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layoutBuilder: pickerLayoutBuilder,
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itemBuilder: pickerItemBuilder,
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),
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),
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);
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},
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);
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},
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child: Text(
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'Multiple selection Blocky Color Picker',
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style: TextStyle(color: useWhiteForeground(widget.pickerColor) ? Colors.white : Colors.black),
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),
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style: ElevatedButton.styleFrom(
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backgroundColor: widget.pickerColor,
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shadowColor: widget.pickerColor.withOpacity(1),
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elevation: 10,
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),
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),
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const SizedBox(width: 20),
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ElevatedButton(
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onPressed: () {
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showDialog(
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context: context,
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builder: (BuildContext context) {
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return const AlertDialog(
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titlePadding: EdgeInsets.all(0),
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contentPadding: EdgeInsets.all(25),
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content: SingleChildScrollView(
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child: Text(
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'''
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MultipleChoiceBlockPicker(
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pickerColors: colors,
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onColorsChanged: changeColors,
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availableColors: colors,
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layoutBuilder: pickerLayoutBuilder,
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itemBuilder: pickerItemBuilder,
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)
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''',
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),
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),
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);
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},
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);
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},
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child: Icon(Icons.code, color: useWhiteForeground(widget.pickerColor) ? Colors.white : Colors.black),
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style: ElevatedButton.styleFrom(
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backgroundColor: widget.pickerColor,
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shadowColor: widget.pickerColor.withOpacity(1),
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elevation: 10,
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),
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),
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],
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),
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const SizedBox(height: 80),
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],
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);
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}
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}
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Reference in New Issue
Block a user