Flutter VPN plugin

This plugin help developers to access VPN service in their flutter app.
本插件帮助开发者在自己的应用内调用 VPN 服务。

The Android part was implemented by strongswan which support ikev2 protocol.
The iOS part not implemented yet.

Warning

This plugin is still under initial development.
Issues and PRs are welcome!

Installation

For Android

Add the service in the application part your AndroidManifest.xml.

<application
        ...
    <activity
        ...
    </activity>
    <service android:name="org.strongswan.android.logic.CharonVpnService"
        android:permission="android.permission.BIND_VPN_SERVICE"/>
</application>

Modify your app/build.gradle to use Java 8 and avoid #22397.

android {
    ...
    lintOptions {
        ...
        // To avoid error.
        checkReleaseBuilds false
    }

    // Plugin requires Java 8.
    compileOptions {
        targetCompatibility 1.8
        sourceCompatibility 1.8
    }
}

The plugin will automatically download pre-build native libraries from here if they haven't been downloaded.

Libraries

flutter_vpn

Dart

dart:ui
Built-in types and core primitives for a Flutter application. [...]

Core

dart:async
Support for asynchronous programming, with classes such as Future and Stream. [...]
dart:collection
Classes and utilities that supplement the collection support in dart:core. [...]
dart:convert
Encoders and decoders for converting between different data representations, including JSON and UTF-8. [...]
dart:core
Built-in types, collections, and other core functionality for every Dart program. [...]
dart:developer
Interact with developer tools such as the debugger and inspector. [...]
dart:math
Mathematical constants and functions, plus a random number generator. [...]
dart:typed_data
Lists that efficiently handle fixed sized data (for example, unsigned 8 byte integers) and SIMD numeric types. [...]

VM

dart:io
File, socket, HTTP, and other I/O support for non-web applications. [...]
dart:isolate
Concurrent programming using isolates: independent workers that are similar to threads but don't share memory, communicating only via messages. [...]