基于 Dart 快速实现跨平台APP构建 - Flutter

安装

Flutter 的安装自动带有 Dart，因此 Dart 语言环境并不需要再次安装。
此外， Flutter官方中文文档也提供了详细的安装过程。

下面只展示出现因为国内特有环境而导致 flutter doctor 报错问题：

[!] Network resources

    X A network error occurred while checking "https://maven.google.com/": 信号灯超时时间已到

  
    X A cryptographic error occurred while checking "https://github.com/": Handshake error in client

      You may be experiencing a man-in-the-middle attack, your network may be compromised, or you may have malware installed on your computer.

修复 maven.google 问题

在 Flutter 安装目录下，找到文件 packages/flutter_tools/lib/src/http_host_validator.dart，修改 kMaven 的路径为阿里云：

const String kCloudHost = 'https://storage.googleapis.com/';
const String kCocoaPods = 'https://cocoapods.org/';
const String kGitHub = 'https://github.com/';
/* 这里↓ */
const String kMaven = 'http://maven.aliyun.com/nexus/content/groups/public/';
const String kPubDev = 'https://pub.dev/';