generated from dellevin/template
编辑界面优化
This commit is contained in:
DelLevin-Home
263
lib/pages/note/note_share_page.dart
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263
lib/pages/note/note_share_page.dart
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import 'dart:io';
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import 'dart:typed_data';
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import 'dart:ui' as ui;
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import 'package:flutter/material.dart';
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import 'package:flutter/rendering.dart';
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import 'package:path_provider/path_provider.dart';
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import 'package:share_plus/share_plus.dart';
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import '../../models/data_models.dart';
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import '../../utils/toast_util.dart';
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/// 笔记分享海报页面
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class NoteSharePage extends StatefulWidget {
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final Note note;
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const NoteSharePage({super.key, required this.note});
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@override
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State<NoteSharePage> createState() => _NoteSharePageState();
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}
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class _NoteSharePageState extends State<NoteSharePage> {
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final GlobalKey _posterKey = GlobalKey();
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bool _isGenerating = false;
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static const _weekdays = ['一', '二', '三', '四', '五', '六', '日'];
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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backgroundColor: const Color(0xFFF5F5F5),
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appBar: AppBar(
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backgroundColor: Colors.white,
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elevation: 0,
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leading: IconButton(
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icon: const Icon(Icons.close, color: Color(0xFF1A1A1A)),
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onPressed: () => Navigator.pop(context),
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),
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title: const Text(
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'分享笔记',
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style: TextStyle(
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fontSize: 18,
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fontWeight: FontWeight.w600,
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color: Color(0xFF1A1A1A),
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),
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),
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centerTitle: true,
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actions: [
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TextButton(
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onPressed: _isGenerating ? null : _generateAndShare,
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child: _isGenerating
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? const SizedBox(
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width: 20,
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height: 20,
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child: CircularProgressIndicator(strokeWidth: 2),
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)
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: const Text(
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'分享',
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style: TextStyle(
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fontSize: 16,
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fontWeight: FontWeight.w600,
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color: Color(0xFF1A1A1A),
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),
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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: Center(
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child: SingleChildScrollView(
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padding: const EdgeInsets.all(24),
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child: RepaintBoundary(
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key: _posterKey,
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child: _buildPosterWidget(),
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),
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),
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),
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);
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}
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Widget _buildPosterWidget() {
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final note = widget.note;
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final hasImages = note.images.isNotEmpty;
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final dateStr =
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'${note.createdAt.year}/${note.createdAt.month.toString().padLeft(2, '0')}/${note.createdAt.day.toString().padLeft(2, '0')} '
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'周${_weekdays[note.createdAt.weekday - 1]} '
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'${note.createdAt.hour.toString().padLeft(2, '0')}:${note.createdAt.minute.toString().padLeft(2, '0')}';
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return Container(
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width: 320,
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decoration: BoxDecoration(
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color: Colors.white,
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borderRadius: BorderRadius.circular(16),
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boxShadow: [
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BoxShadow(
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color: Colors.black.withOpacity(0.1),
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blurRadius: 20,
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offset: const Offset(0, 10),
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),
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],
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),
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child: Column(
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mainAxisSize: MainAxisSize.min,
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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// 首张图片
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if (hasImages && File(note.images.first).existsSync())
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ClipRRect(
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borderRadius: const BorderRadius.vertical(top: Radius.circular(16)),
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child: Image.file(
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File(note.images.first),
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width: 320,
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height: 200,
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fit: BoxFit.cover,
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),
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),
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// 内容区域
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Padding(
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padding: const EdgeInsets.all(20),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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// 标题
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if (note.title.isNotEmpty) ...[
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Text(
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note.title,
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style: const TextStyle(
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fontSize: 22,
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fontWeight: FontWeight.bold,
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color: Color(0xFF1A1A1A),
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),
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),
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const SizedBox(height: 4),
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],
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// 日期
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Text(
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dateStr,
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style: const TextStyle(
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fontSize: 12,
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color: Color(0xFF999999),
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),
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),
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// 标签
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if (note.tags.isNotEmpty) ...[
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const SizedBox(height: 12),
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Wrap(
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spacing: 6,
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runSpacing: 6,
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children: note.tags.map((tag) {
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return Container(
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padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 3),
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decoration: BoxDecoration(
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color: const Color(0xFFF0F0F0),
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borderRadius: BorderRadius.circular(4),
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),
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child: Text(
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tag,
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style: const TextStyle(fontSize: 11, color: Color(0xFF888888)),
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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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const SizedBox(height: 16),
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Container(height: 0.5, color: const Color(0xFFE8E8E8)),
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const SizedBox(height: 16),
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// 正文内容
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Text(
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note.content,
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maxLines: 12,
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overflow: TextOverflow.ellipsis,
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style: const TextStyle(
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fontSize: 14,
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color: Color(0xFF333333),
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height: 1.8,
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),
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),
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// 字数和图片数
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const SizedBox(height: 16),
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Row(
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children: [
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_buildMetaChip(Icons.text_fields_outlined, '${note.content.length} 字'),
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if (hasImages) ...[
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const SizedBox(width: 12),
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_buildMetaChip(Icons.image_outlined, '${note.images.length} 图'),
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],
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const Spacer(),
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// Mooknote 品牌
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const Text(
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'Mooknote',
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style: TextStyle(
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fontSize: 11,
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color: Color(0xFFCCCCCC),
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fontWeight: FontWeight.w500,
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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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Widget _buildMetaChip(IconData icon, String text) {
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return Row(
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mainAxisSize: MainAxisSize.min,
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children: [
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Icon(icon, size: 13, color: const Color(0xFFAAAAAA)),
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const SizedBox(width: 4),
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Text(
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text,
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style: const TextStyle(fontSize: 11, color: Color(0xFFAAAAAA)),
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),
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],
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);
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}
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Future<void> _generateAndShare() async {
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setState(() => _isGenerating = true);
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try {
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final boundary = _posterKey.currentContext?.findRenderObject()
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as RenderRepaintBoundary?;
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if (boundary == null) {
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throw Exception('无法获取海报边界');
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}
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final image = await boundary.toImage(pixelRatio: 3.0);
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final byteData = await image.toByteData(format: ui.ImageByteFormat.png);
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if (byteData == null) {
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throw Exception('无法生成图片数据');
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}
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final bytes = byteData.buffer.asUint8List();
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final tempDir = await getTemporaryDirectory();
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final fileName = 'note_share_${DateTime.now().millisecondsSinceEpoch}.png';
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final file = File('${tempDir.path}/$fileName');
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await file.writeAsBytes(bytes);
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await Share.shareXFiles(
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[XFile(file.path)],
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text: '分享笔记：${widget.note.title.isNotEmpty ? widget.note.title : '无标题'}',
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);
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} catch (e) {
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if (mounted) {
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ToastUtil.show(context, '生成海报失败：$e');
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}
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} finally {
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if (mounted) {
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setState(() => _isGenerating = false);
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}
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}
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}
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}
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