来源：AI开发日志公众号专辑「Build Your Own X With AI」
原文链接：https://mp.weixin.qq.com/s?__biz=MzUxMjg3MjE2OA==&mid=2247486363&idx=1&sn=754aa2b71c61569b176af8f27a406af8&chksm=f95c901cce2b190ad921381b0741e4f332bd44bc08a0d26ce782eba9736eb1ab78c9ab2164b3#rd
WiFi Direct Chat
WiFi Direct聊天应用
A simple WiFi Direct chat application that allows devices to connect directly and exchange messages. 一个简单的WiFi Direct聊天应用，允许设备直接连接并交换消息。
Features
功能特性
- WiFi Direct Device Discovery
-
Discover nearby WiFi Direct devices
- WiFi Direct设备发现
-
发现附近的WiFi Direct设备
- Auto Connection
-
Automatically connect to chat server when WiFi Direct connection is established
- 自动连接
-
当WiFi Direct连接建立时自动连接到聊天服务器
- Real-time Messaging
-
Send and receive messages in real-time
- 实时消息
-
实时发送和接收消息
- IP Address Display
-
Shows the device’s WiFi Direct IP address
- IP地址显示
-
显示设备的WiFi Direct IP地址
- Connection Status
-
Real-time connection status updates
- 连接状态
-
实时连接状态更新
Requirements
系统要求
Android 7.0 (API level 24) or higher
Android 7.0（API级别24）或更高版本
WiFi Direct supported device
支持WiFi Direct的设备
Chat server running on 192.168.49.1:8080
聊天服务器运行在192.168.49.1:8080
Installation
安装说明
Clone or download the project
克隆或下载项目
Open the project in Android Studio
在Android Studio中打开项目
Build and run the project on your Android device
在Android设备上构建并运行项目
Usage
使用方法
Enable WiFi on your device
在设备上启用WiFi
Launch the application
启动应用程序
Grant the required permissions
授予所需权限
Click “Discover Devices” to scan for nearby WiFi Direct devices
点击”Discover Devices”扫描附近的WiFi Direct设备
Select a device from the list and click “Connect”
从列表中选择一个设备并点击”Connect”
Once connected, the application will automatically connect to the chat server
连接成功后，应用程序将自动连接到聊天服务器
Type a message in the input field and click “Send” to send a message
在输入框中输入消息并点击”Send”发送消息
Screenshots
截图
Device Discovery
设备发现
Chat Interface
聊天界面
Project Structure
项目结构
├── app/
│ ├── src/
│ │ ├── main/
│ │ │ ├── AndroidManifest.xml
│ │ │ ├── java/com/iosdevlog/p2p/
│ │ │ │ ├── MainActivity.kt
│ │ │ │ ├── WifiDirectManager.kt
│ │ │ │ ├── ChatClient.kt
│ │ │ │ └── ChatServer.kt
│ │ │ └── res/
│ │ └── test/
│ └── build.gradle.kts
└── build.gradle.kts
Permissions
权限说明
The application requires the following permissions: 应用程序需要以下权限：
- ACCESS_WIFI_STATE
-
To check WiFi status
- ACCESS_WIFI_STATE
-
检查WiFi状态
- CHANGE_WIFI_STATE
-
To enable/disable WiFi Direct
- CHANGE_WIFI_STATE
-
启用/禁用WiFi Direct
- ACCESS_FINE_LOCATION
-
To discover nearby devices
- ACCESS_FINE_LOCATION
-
发现附近的设备
- ACCESS_COARSE_LOCATION
-
To discover nearby devices (Android 12+)
- ACCESS_COARSE_LOCATION
-
发现附近的设备（Android 12+）
- NEARBY_WIFI_DEVICES
-
To discover nearby WiFi Direct devices (Android 13+)
- NEARBY_WIFI_DEVICES
-
发现附近的WiFi Direct设备（Android 13+）
- INTERNET
-
To connect to the chat server
- INTERNET
-
连接到聊天服务器
- CHANGE_NETWORK_STATE
-
To manage network connections
- CHANGE_NETWORK_STATE
-
管理网络连接
- ACCESS_NETWORK_STATE
-
To check network status
- ACCESS_NETWORK_STATE
-
检查网络状态
Technologies Used
技术栈
- Kotlin
-
Primary programming language
- Kotlin
-
主要编程语言
- Jetpack Compose
-
UI framework
- Jetpack Compose
-
UI框架
- WiFi Direct API
-
For device discovery and connection
- WiFi Direct API
-
用于设备发现和连接
- TCP Socket
-
For message communication
- TCP Socket
-
用于消息通信
License
许可证
This project is licensed under the MIT License. 本项目采用MIT许可证。
Contributing
贡献
Contributions are welcome! Please feel free to submit a Pull Request. 欢迎贡献！请随时提交Pull Request。
Troubleshooting
故障排除
- No devices found
-
Make sure WiFi is enabled and other devices are in WiFi Direct mode
- 未找到设备
-
确保WiFi已启用且其他设备处于WiFi Direct模式
- Connection failed
-
Check if the chat server is running on 192.168.49.1:8080
- 连接失败
-
检查聊天服务器是否在192.168.49.1:8080上运行
- Messages not received
-
Verify the WiFi Direct connection is stable
- 未收到消息
-
验证WiFi Direct连接是否稳定
Authors
作者
iosdevlog
iosdevlog
Version
版本
1.0.0 1.0.0