Upgrade flutter_lints

example/lib/complex_example/alpha_picker_page.dart

@@ -5,7 +5,7 @@ class AlphaPickerPage extends StatefulWidget {
   const AlphaPickerPage({Key? key}) : super(key: key);
 
   @override
-  _AlphaPickerPageState createState() => _AlphaPickerPageState();
+  State<AlphaPickerPage> createState() => _AlphaPickerPageState();
 }
 
 class _AlphaPickerPageState extends State<AlphaPickerPage> {

example/lib/complex_example/color_picker_page.dart

@@ -6,7 +6,7 @@ class ColorPickerPage extends StatefulWidget {
   const ColorPickerPage({Key? key}) : super(key: key);
 
   @override
-  _ColorPickerPageState createState() => _ColorPickerPageState();
+  State<ColorPickerPage> createState() => _ColorPickerPageState();
 }
 
 class _ColorPickerPageState extends State<ColorPickerPage> {

example/lib/complex_example/hex_picker_page.dart

@@ -6,7 +6,7 @@ class HexPickerPage extends StatefulWidget {
   const HexPickerPage({Key? key}) : super(key: key);
 
   @override
-  _HexPickerPageState createState() => _HexPickerPageState();
+  State<HexPickerPage> createState() => _HexPickerPageState();
 }
 
 class _HexPickerPageState extends State<HexPickerPage> {

example/lib/complex_example/hsv_picker_page.dart

@@ -6,7 +6,7 @@ class HSVPickerPage extends StatefulWidget {
   const HSVPickerPage({Key? key}) : super(key: key);
 
   @override
-  _HSVPickerPageState createState() => _HSVPickerPageState();
+  State<HSVPickerPage> createState() => _HSVPickerPageState();
 }
 
 class _HSVPickerPageState extends State<HSVPickerPage> {

example/lib/complex_example/main.dart

@@ -28,7 +28,7 @@ class MainPage extends StatefulWidget {
   const MainPage({Key? key}) : super(key: key);
 
   @override
-  _MainPageState createState() => _MainPageState();
+  State<MainPage> createState() => _MainPageState();
 }
 
 class _MainPageState extends State<MainPage> {

example/lib/complex_example/palette_hue_picker_page.dart

@@ -6,7 +6,7 @@ class PaletteHuePickerPage extends StatefulWidget {
   const PaletteHuePickerPage({Key? key}) : super(key: key);
 
   @override
-  _PaletteHuePickerPageState createState() => _PaletteHuePickerPageState();
+  State<PaletteHuePickerPage> createState() => _PaletteHuePickerPageState();
 }
 
 class _PaletteHuePickerPageState extends State<PaletteHuePickerPage> {

example/lib/complex_example/palette_picker_page.dart

@@ -8,7 +8,7 @@ class PalettePickerPage extends StatefulWidget {
   final List<Color> verticalColors = [Colors.transparent, Colors.black];
 
   @override
-  _PalettePickerPageState createState() => _PalettePickerPageState();
+  State<PalettePickerPage> createState() => _PalettePickerPageState();
 }
 
 class _PalettePickerPageState extends State<PalettePickerPage> {
@@ -34,13 +34,7 @@ class _PalettePickerPageState extends State<PalettePickerPage> {
               mainAxisSize: MainAxisSize.min,
               children: <Widget>[
                 Text(
-                  '( ' +
-                      ((value.dx * 100.0).toInt().toDouble() / 100.0)
-                          .toString() +
-                      ' , ' +
-                      ((value.dy * 100.0).toInt().toDouble() / 100.0)
-                          .toString() +
-                      ' )',
+                  '''( ${(value.dx * 100.0).toInt().toDouble() / 100.0} , ${(value.dy * 100.0).toInt().toDouble() / 100.0} )''',
                   style: Theme.of(context).textTheme.headlineMedium,
                 ),
                 const Divider(),

example/lib/complex_example/palette_saturation_picker_page.dart

@@ -6,7 +6,7 @@ class PaletteSaturationPickerPage extends StatefulWidget {
   const PaletteSaturationPickerPage({Key? key}) : super(key: key);
 
   @override
-  _PaletteSaturationPickerPageState createState() =>
+  State<PaletteSaturationPickerPage> createState() =>
       _PaletteSaturationPickerPageState();
 }
 

example/lib/complex_example/palette_value_picker_page.dart

@@ -6,7 +6,7 @@ class PaletteValuePickerPage extends StatefulWidget {
   const PaletteValuePickerPage({Key? key}) : super(key: key);
 
   @override
-  _PaletteValuePickerPageState createState() => _PaletteValuePickerPageState();
+  State<PaletteValuePickerPage> createState() => _PaletteValuePickerPageState();
 }
 
 class _PaletteValuePickerPageState extends State<PaletteValuePickerPage> {

example/lib/complex_example/rgb_picker_page.dart

@@ -6,7 +6,7 @@ class RGBPickerPage extends StatefulWidget {
   const RGBPickerPage({Key? key}) : super(key: key);
 
   @override
-  _RGBPickerPageState createState() => _RGBPickerPageState();
+  State<RGBPickerPage> createState() => _RGBPickerPageState();
 }
 
 class _RGBPickerPageState extends State<RGBPickerPage> {

example/lib/complex_example/slider_picker_page.dart

@@ -5,7 +5,7 @@ class SliderPickerPage extends StatefulWidget {
   const SliderPickerPage({Key? key}) : super(key: key);
 
   @override
-  _SliderPickerPageState createState() => _SliderPickerPageState();
+  State<SliderPickerPage> createState() => _SliderPickerPageState();
 }
 
 class _SliderPickerPageState extends State<SliderPickerPage> {

example/lib/complex_example/swatches_picker_page.dart

@@ -6,7 +6,7 @@ class SwatchesPickerPage extends StatefulWidget {
   const SwatchesPickerPage({Key? key}) : super(key: key);
 
   @override
-  _SwatchesPickerPageState createState() => _SwatchesPickerPageState();
+  State<SwatchesPickerPage> createState() => _SwatchesPickerPageState();
 }
 
 class _SwatchesPickerPageState extends State<SwatchesPickerPage> {

example/lib/complex_example/wheel_picker_page.dart

@@ -6,7 +6,7 @@ class WheelPickerPage extends StatefulWidget {
   const WheelPickerPage({Key? key}) : super(key: key);
 
   @override
-  _WheelPickerPageState createState() => _WheelPickerPageState();
+  State<WheelPickerPage> createState() => _WheelPickerPageState();
 }
 
 class _WheelPickerPageState extends State<WheelPickerPage> {

example/pubspec.yaml

@@ -13,7 +13,7 @@ dependencies:
     path: ../
 
 dev_dependencies:
-  flutter_lints: ^1.0.4
+  flutter_lints: ^2.0.0
 
 flutter:
   uses-material-design: true

lib/src/color_picker.dart

@@ -56,7 +56,7 @@ class ColorPicker extends StatefulWidget {
   final PickerOrientation pickerOrientation;
 
   @override
-  _ColorPickerState createState() => _ColorPickerState();
+  State<ColorPicker> createState() => _ColorPickerState();
 }
 
 class _ColorPickerState extends State<ColorPicker> {

lib/src/pickers/hsv_picker.dart

@@ -18,7 +18,7 @@ class HSVPicker extends StatefulWidget {
   final ValueChanged<HSVColor> onChanged;
 
   @override
-  _HSVPickerState createState() => _HSVPickerState();
+  State<HSVPicker> createState() => _HSVPickerState();
 }
 
 class _HSVPickerState extends State<HSVPicker> {

lib/src/pickers/palette_hue_picker.dart

@@ -32,7 +32,7 @@ class PaletteHuePicker extends StatefulWidget {
   final BorderRadius? paletteBorderRadius;
 
   @override
-  _PaletteHuePickerState createState() => _PaletteHuePickerState();
+  State<PaletteHuePicker> createState() => _PaletteHuePickerState();
 }
 
 class _PaletteHuePickerState extends State<PaletteHuePicker> {

lib/src/pickers/palette_saturation_picker.dart

@@ -14,7 +14,7 @@ class PaletteSaturationPicker extends StatefulWidget {
   final ValueChanged<HSVColor> onChanged;
 
   @override
-  _PaletteSaturationPickerState createState() =>
+  State<PaletteSaturationPicker> createState() =>
       _PaletteSaturationPickerState();
 }
 

lib/src/pickers/palette_value_picker.dart

@@ -14,7 +14,7 @@ class PaletteValuePicker extends StatefulWidget {
   final ValueChanged<HSVColor> onChanged;
 
   @override
-  _PaletteValuePickerState createState() => _PaletteValuePickerState();
+  State<PaletteValuePicker> createState() => _PaletteValuePickerState();
 }
 
 class _PaletteValuePickerState extends State<PaletteValuePicker> {

lib/src/pickers/rgb_picker.dart

@@ -15,7 +15,7 @@ class RGBPicker extends StatefulWidget {
   final ValueChanged<Color> onChanged;
 
   @override
-  _RGBPickerState createState() => _RGBPickerState();
+  State<RGBPicker> createState() => _RGBPickerState();
 }
 
 class _RGBPickerState extends State<RGBPicker> {

lib/src/pickers/swatches_picker.dart

@@ -10,7 +10,7 @@ class SwatchesPicker extends StatefulWidget {
   final ValueChanged<Color> onChanged;
 
   @override
-  _SwatchesPickerState createState() => _SwatchesPickerState();
+  State<SwatchesPicker> createState() => _SwatchesPickerState();
 }
 
 class _SwatchesPickerState extends State<SwatchesPicker>

lib/src/pickers/wheel_picker.dart

@@ -14,7 +14,7 @@ class WheelPicker extends StatefulWidget {
   final ValueChanged<HSVColor> onChanged;
 
   @override
-  _WheelPickerState createState() => _WheelPickerState();
+  State<WheelPicker> createState() => _WheelPickerState();
 }
 
 class _WheelPickerState extends State<WheelPicker> {

lib/src/widgets/hex_picker.dart

@@ -16,7 +16,7 @@ class HexPicker extends StatefulWidget {
   final TextEditingController _controller;
 
   @override
-  _HexPickerState createState() => _HexPickerState();
+  State<HexPicker> createState() => _HexPickerState();
 }
 
 class _HexPickerState extends State<HexPicker> {

lib/src/widgets/palette_picker.dart

@@ -28,7 +28,7 @@ class PalettePicker extends StatefulWidget {
   final List<Color> topBottomColors;
 
   @override
-  _PalettePickerState createState() => _PalettePickerState();
+  State<PalettePicker> createState() => _PalettePickerState();
 }
 
 class _PalettePickerState extends State<PalettePicker> {

pubspec.yaml

@@ -12,6 +12,6 @@ environment:
   flutter: '>=2.10.0'
 
 dev_dependencies:
-  flutter_lints: ^1.0.4
+  flutter_lints: ^2.0.0
   flutter_test:
     sdk: flutter