check method

Future<void> check(BuildContext context, { required String url, UpdateAvailableCallback? onUpdateAvailable, bool shouldUpdate(VersionInfo, PackageInfo)?, Map<String, dynamic>? params, })

检查更新

context - BuildContext，用于显示对话框 url - 检查更新的API地址 params - API请求参数

Implementation

Future<void> check(
  BuildContext context, {
  required String url,
  UpdateAvailableCallback? onUpdateAvailable,
  bool Function(VersionInfo, PackageInfo)? shouldUpdate,
  Map<String, dynamic>? params,
}) async {
  if (!Platform.isAndroid) assert(false, 'Only Android is supported');

  _log('开始检查更新...');
  try {
    final response = await _dio.get(url, queryParameters: params);
    if (response.statusCode != 200) {
      throw "网络请求失败，状态码: ${response.statusCode}";
    }

    _log('检查更新成功，开始解析数据: ${response.data}');
    final newVersionInfo = await _parser(response.data);
    final packageInfo = await PackageInfo.fromPlatform();
    final currentVersion = packageInfo.version;
    _log('获得旧版本信息 ${currentVersion}+${packageInfo.buildNumber}');
    _updateInfo = UpdateInfo(currentVersion: currentVersion, latestVersion: newVersionInfo);

    if (shouldUpdate != null) {
      _hasUpdate = shouldUpdate(newVersionInfo, packageInfo);
    } else {
      if (newVersionInfo.version != currentVersion) {
        _hasUpdate = true;
        _log('版本号不一致，触发更新');
      } else {
        if (newVersionInfo.buildVersion.toString() != packageInfo.buildNumber) {
          _hasUpdate = true;
          _log('构建号不一致，触发更新');
        }
      }
    }

    // 简单比较版本号，可根据需要替换为更复杂的比较逻辑
    if (_hasUpdate) {
      _log('发现新版本: ${newVersionInfo.version}+${newVersionInfo.buildVersion}');
      statusNotifier.value = DownloadStatus.none; // 重置状态
      progressNotifier.value = 0.0; // 重置进度

      // 优先使用回调
      if (onUpdateAvailable != null) {
        onUpdateAvailable(context, _updateInfo!);
      }
      // 若回调为空，则使用弹出框
      else if (_dialogBuilder != null) {
        showDialog(
          context: context,
          barrierDismissible: newVersionInfo.updateStatus == 2,
          builder: (ctx) => _dialogBuilder!(ctx, _updateInfo!, statusNotifier, progressNotifier),
        );
      } else {
        _log('警告: 未设置 dialogBuilder 和 onUpdateAvailable 回调，将不会有任何更新提示。');
      }
    } else {
      _log('当前已是最新版本。');
    }
  } catch (e) {
    _log('检查更新时出错: $e');
    _errorHandler?.call(e);
  }
}