144 lines
4.4 KiB
Dart
144 lines
4.4 KiB
Dart
import 'dart:io';
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import 'package:flutter/material.dart';
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import '../../data/models/app_update_model.dart';
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import '../../services/update_service.dart';
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import 'toast_helper.dart';
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class UpdatePrompt extends StatefulWidget {
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final Widget child;
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const UpdatePrompt({super.key, required this.child});
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@override
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State<UpdatePrompt> createState() => _UpdatePromptState();
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}
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class _UpdatePromptState extends State<UpdatePrompt> {
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static bool _checkedThisRun = false;
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bool _dialogVisible = false;
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@override
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void initState() {
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super.initState();
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WidgetsBinding.instance.addPostFrameCallback((_) => _checkUpdate());
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}
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Future<void> _checkUpdate() async {
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if (_checkedThisRun || _dialogVisible || !mounted) return;
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_checkedThisRun = true;
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final update = await UpdateService.instance.checkForUpdate();
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if (update == null || !mounted) return;
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_dialogVisible = true;
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try {
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await _showUpdateDialog(update);
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} finally {
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_dialogVisible = false;
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}
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}
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Future<void> _showUpdateDialog(AppUpdateInfo update) async {
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var downloading = false;
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var progress = 0.0;
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String? status;
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await showDialog<void>(
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context: context,
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barrierDismissible: false,
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builder: (dialogContext) {
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return StatefulBuilder(
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builder: (context, setDialogState) {
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final canDownload =
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update.downloadUrl != null &&
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(Platform.isAndroid || Platform.isWindows);
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Future<void> startUpdate() async {
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if (downloading || !canDownload) return;
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setDialogState(() {
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downloading = true;
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progress = 0;
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status = '正在下载更新...';
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});
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try {
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final file = await UpdateService.instance.downloadUpdate(
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update,
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onProgress: (received, total) {
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if (!mounted || total <= 0) return;
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setDialogState(() {
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progress = received / total;
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});
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},
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);
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if (file == null) return;
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setDialogState(() {
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progress = 1;
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status = '下载完成，正在打开安装包...';
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});
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await UpdateService.instance.openInstaller(file);
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if (dialogContext.mounted) Navigator.of(dialogContext).pop();
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} catch (e) {
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setDialogState(() {
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downloading = false;
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status = '下载或打开安装包失败';
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});
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ToastHelper.failure('更新失败: $e');
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}
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}
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return AlertDialog(
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title: Text('发现新版本 ${update.version}'),
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content: ConstrainedBox(
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constraints: const BoxConstraints(maxWidth: 420),
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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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Text(update.title),
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if ((update.description ?? '').isNotEmpty) ...[
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const SizedBox(height: 12),
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Text(
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update.description!,
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maxLines: 6,
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overflow: TextOverflow.ellipsis,
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),
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],
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if (downloading) ...[
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const SizedBox(height: 16),
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LinearProgressIndicator(
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value: progress == 0 ? null : progress,
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),
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const SizedBox(height: 8),
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Text(status ?? ''),
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],
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],
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),
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),
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actions: [
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TextButton(
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onPressed: downloading
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? null
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: () => Navigator.of(dialogContext).pop(),
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child: const Text('稍后'),
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),
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FilledButton(
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onPressed: downloading ? null : startUpdate,
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child: const Text('立即更新'),
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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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@override
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Widget build(BuildContext context) => widget.child;
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}
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