generated from dellevin/template
界面完善
This commit is contained in:
DelLevin-Home
181
lib/widgets/genre_selector_page.dart
Normal file
181
lib/widgets/genre_selector_page.dart
Normal file
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import 'package:flutter/material.dart';
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/// 类型/标签选择全屏页（影视类型、书籍类型通用）
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class GenreSelectorPage extends StatefulWidget {
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final String title;
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final List<String> existingTags;
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final List<String> initialSelected;
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final String hint;
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const GenreSelectorPage({
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super.key,
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required this.title,
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required this.existingTags,
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required this.initialSelected,
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this.hint = '',
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});
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@override
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State<GenreSelectorPage> createState() => _GenreSelectorPageState();
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}
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class _GenreSelectorPageState extends State<GenreSelectorPage> {
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late List<String> _selected;
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final _controller = TextEditingController();
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String _newTag = '';
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@override
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void initState() {
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super.initState();
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_selected = List<String>.from(widget.initialSelected);
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}
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@override
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void dispose() {
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_controller.dispose();
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super.dispose();
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}
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void _toggle(String tag) {
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setState(() {
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if (_selected.contains(tag)) {
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_selected.remove(tag);
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} else {
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_selected.add(tag);
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}
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});
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}
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void _addCustom() {
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final tag = _newTag.trim();
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if (tag.isNotEmpty && !_selected.contains(tag)) {
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setState(() {
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_selected.add(tag);
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_newTag = '';
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_controller.clear();
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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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final colors = Theme.of(context).colorScheme;
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final available = widget.existingTags.where((t) => !_selected.contains(t)).toList();
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return Scaffold(
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backgroundColor: colors.surface,
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appBar: AppBar(
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title: Text(widget.title),
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actions: [
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TextButton(
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onPressed: () => Navigator.pop(context, _selected),
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child: Text('完成', style: TextStyle(
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fontSize: 15, fontWeight: FontWeight.w600, color: colors.primary,
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)),
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),
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const SizedBox(width: 8),
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],
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),
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body: SingleChildScrollView(
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padding: const EdgeInsets.fromLTRB(20, 8, 20, 40),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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// 已选择
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if (_selected.isNotEmpty) ...[
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Text('已选择', style: TextStyle(fontSize: 13, fontWeight: FontWeight.w600, color: colors.onSurface.withValues(alpha: 0.5))),
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const SizedBox(height: 8),
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Wrap(
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spacing: 8, runSpacing: 8,
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children: _selected.map((tag) {
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final displayTag = tag.length > 8 ? '${tag.substring(0, 8)}...' : tag;
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return GestureDetector(
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onTap: () => _toggle(tag),
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child: Container(
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padding: const EdgeInsets.symmetric(horizontal: 14, vertical: 8),
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decoration: BoxDecoration(
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color: colors.primary, borderRadius: BorderRadius.circular(20),
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),
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child: Row(
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mainAxisSize: MainAxisSize.min,
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children: [
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Text(displayTag, style: TextStyle(fontSize: 13, fontWeight: FontWeight.w500, color: colors.onPrimary)),
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const SizedBox(width: 6),
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Icon(Icons.close, size: 14, color: colors.onPrimary.withValues(alpha: 0.7)),
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],
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),
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),
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);
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}).toList(),
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),
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const SizedBox(height: 24),
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],
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// 自定义输入
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Text('自定义添加', style: TextStyle(fontSize: 13, fontWeight: FontWeight.w600, color: colors.onSurface.withValues(alpha: 0.5))),
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const SizedBox(height: 8),
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Row(
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children: [
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Expanded(
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child: TextField(
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controller: _controller,
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style: TextStyle(fontSize: 14, color: colors.onSurface),
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decoration: InputDecoration(
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hintText: widget.hint.isNotEmpty ? widget.hint : '输入自定义类型',
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hintStyle: TextStyle(fontSize: 14, color: colors.onSurface.withValues(alpha: 0.3)),
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filled: true, fillColor: colors.surfaceContainerHighest,
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contentPadding: const EdgeInsets.symmetric(horizontal: 14, vertical: 10),
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border: OutlineInputBorder(borderRadius: BorderRadius.circular(10), borderSide: BorderSide.none),
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),
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onChanged: (v) => setState(() => _newTag = v),
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onSubmitted: (_) => _addCustom(),
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),
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),
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const SizedBox(width: 8),
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GestureDetector(
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onTap: _addCustom,
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child: Container(
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padding: const EdgeInsets.all(10),
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decoration: BoxDecoration(
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color: _newTag.trim().isNotEmpty ? colors.primary : colors.surfaceContainerHighest,
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borderRadius: BorderRadius.circular(10),
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),
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child: Icon(Icons.add, size: 20,
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color: _newTag.trim().isNotEmpty ? colors.onPrimary : colors.onSurface.withValues(alpha: 0.3)),
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),
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),
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],
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),
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// 已有类型
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if (available.isNotEmpty) ...[
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const SizedBox(height: 24),
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Text('已有类型', style: TextStyle(fontSize: 13, fontWeight: FontWeight.w600, color: colors.onSurface.withValues(alpha: 0.5))),
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const SizedBox(height: 8),
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Wrap(
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spacing: 8, runSpacing: 8,
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children: available.map((tag) {
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final displayTag = tag.length > 8 ? '${tag.substring(0, 8)}...' : tag;
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return GestureDetector(
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onTap: () => _toggle(tag),
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child: Container(
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padding: const EdgeInsets.symmetric(horizontal: 14, vertical: 8),
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decoration: BoxDecoration(
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color: colors.surfaceContainerHighest, borderRadius: BorderRadius.circular(20),
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),
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child: Row(
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mainAxisSize: MainAxisSize.min,
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children: [
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Icon(Icons.add, size: 14, color: colors.onSurface.withValues(alpha: 0.4)),
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const SizedBox(width: 4),
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Text(displayTag, style: TextStyle(fontSize: 13, color: colors.onSurface.withValues(alpha: 0.7))),
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],
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),
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),
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);
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}).toList(),
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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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