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Fixed hex color picker in material 3 demo (#2578)

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This pull request fixes the problem where the color picker wasn't
handling hex values correctly.

Fixes #2577
This commit is contained in:
Thomas Anderl
2025-02-13 04:52:14 +00:00
committed by GitHub
parent ac85e2c333
commit 3ae8c207ce
2 changed files with 77 additions and 7 deletions
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18
material_3_demo/lib/color_box.dart
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@@ -66,14 +66,13 @@ class _ColorBoxState extends State<ColorBox> {
onPressed: () async {
final messenger = ScaffoldMessenger.of(context);
// Copy color as hex to clipboard
String hex = '#';
final c = widget.color;
// Will change from int 0-255 to double 0.0-1.0 in 3.26+
// The properties also change from red/green/blue to r/g/b
// hex += (c.[r g b] * 255.0).round().toRadixString(16).padLeft(2, '0');
hex += c.r.round().toRadixString(16).padLeft(2, '0');
hex += c.g.round().toRadixString(16).padLeft(2, '0');
hex += c.b.round().toRadixString(16).padLeft(2, '0');
final hex =
'#${_colorChannelToHex(c.r)}'
'${_colorChannelToHex(c.g)}'
'${_colorChannelToHex(c.b)}';
final data = ClipboardData(text: hex);
await Clipboard.setData(data);
messenger.hideCurrentSnackBar();
@@ -90,3 +89,8 @@ class _ColorBoxState extends State<ColorBox> {
);
}
}
String _colorChannelToHex(double value) {
final intVal = (value * 255).round();
return intVal.toRadixString(16).padLeft(2, '0');
}