jingyun
55 lines
1.5 KiB
Dart
55 lines
1.5 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:flutter_remix/flutter_remix.dart';
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import 'package:go_router/go_router.dart';
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import 'package:shadcn_ui/shadcn_ui.dart';
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/// 圆形返回钮（对齐 demo `.back`：38×38 圆 + 1px 描边 + chevron）。
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/// 左对齐到 12px（demo `.dhead` padding-left），用作各页 AppBar 的 leading。
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class CircleBackButton extends StatelessWidget {
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const CircleBackButton({
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super.key,
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this.onTap,
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this.fallbackLocation = '/assets',
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});
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final VoidCallback? onTap;
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final String fallbackLocation;
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@override
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Widget build(BuildContext context) {
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final cs = ShadTheme.of(context).colorScheme;
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return Align(
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alignment: Alignment.centerLeft,
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child: Padding(
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padding: const EdgeInsets.only(left: 12),
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child: GestureDetector(
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behavior: HitTestBehavior.opaque,
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onTap:
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onTap ??
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() {
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if (context.canPop()) {
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context.pop();
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} else {
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context.go(fallbackLocation);
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}
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},
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child: Container(
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width: 38,
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height: 38,
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alignment: Alignment.center,
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decoration: BoxDecoration(
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shape: BoxShape.circle,
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border: Border.all(color: cs.border, width: 1),
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),
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child: Icon(
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FlutterRemix.arrow_left_s_line,
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size: 22,
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color: cs.foreground,
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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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