flutter window 11 安装问题

dragoonnet

已于 2023-03-10 14:46:09 修改

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于 2023-03-10 14:45:25 首次发布

本文链接：https://blog.youkuaiyun.com/dragoonnet/article/details/129442389

该代码段是Flutter项目中用于验证Windows主机操作系统版本是否大于等于10的类。它已进行了修正，使用ver命令代替systeminfo，并解析输出以检查版本号。如果版本大于等于10，则验证成功；否则，提示无法确认版本信息。

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Unable to confirm if installed Windows version is 10 or greater

flutter\packages\flutter_tools\lib\src\windows\windows_version_validator.dart

// Copyright 2014 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import 'package:process/process.dart';

import '../base/io.dart';
import '../doctor_validator.dart';

// FIX #1 - Remove everything from line 10 to 20 in original source code.

/// Validator for supported Windows host machine operating system version.
class WindowsVersionValidator extends DoctorValidator {
  const WindowsVersionValidator({required ProcessManager processManager})
      : _processManager = processManager,
        super('Windows Version');

  final ProcessManager _processManager;

  @override
  Future<ValidationResult> validate() async {

// FIX #2 - Replace 'systeminfo' by 'ver' command
    final ProcessResult result =
        await _processManager.run(<String>['ver'], runInShell: true);

    if (result.exitCode != 0) {
      return const ValidationResult(
        ValidationType.missing,
        <ValidationMessage>[],
        statusInfo: 'Exit status from running `systeminfo` was unsuccessful',
      );
    }

    final String resultStdout = result.stdout as String;

// FIX #3 - Remove brackets from output
    final String resultAdjusted = resultStdout.replaceAll('[','').replaceAll(']','');

// FIX #4 - Split the output at spaces, and get Windows version at position 3.
//          Split again at dots and get the major version at position 0.
//          Cast the output to int.
    final int winver = int.parse(resultAdjusted.split(' ').elementAt(3).split('.').elementAt(0));

    // Use the string split method to extract the major version
    // and check against the [kUnsupportedVersions] list
    final ValidationType windowsVersionStatus;
    final String statusInfo;

// FIX #5 - Check if Windows major version is greater than 10.
//          Succeeds if true.
    if (winver >= 10) {
      windowsVersionStatus = ValidationType.installed;
      statusInfo = 'Installed version of Windows is version 10 or higher';
    } else {
      windowsVersionStatus = ValidationType.missing;
      statusInfo =
          'Unable to confirm if installed Windows version is 10 or greater';
    }

    return ValidationResult(
      windowsVersionStatus,
      const <ValidationMessage>[],
      statusInfo: statusInfo,
    );
  }
}