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How to Implement TCP Connection Functionality

TCP Connection is a codelab project that developed to show how to provide TCP Socket connection with different devices.

Preview

Use Cases

1. Users can enter the IP address of other device which is desired as to be connect device.

Tech Stack

• Languages: ArkTS, ArkUI
• Frameworks: HarmonyOS 5.1.0(18)
• Tools: DevEco Studio Vers 5.1.0.828SP1, HarmonyOS Device Connector (hdc)
• Libraries: @kit.ArkUI, @kit.NetworkKit, @kit.BasicServicesKit
• Networking: TCP/HTTP socket server on port 12345

Required Permissions

• ohos.permission.INTERNET

  Required to provide connection over TCP.

Directory Structure

entry/src/main/ets/
├───entryability
│       EntryAbility.ets
├───entrybackupability
│       EntryBackupAbility.ets
├───pages
│       Index.ets
└───

Constraints and Restrictions

Suported Devices

• Huawei Watch 5

Limitations

• The application is not working on previewer.
• Each devices must be connected in same network

License

TCP Connection is distributed under the terms of the MIT License See the LICENSE for more information.