CallConnect

One-to-one Audio & Video Calling Android application built using Kotlin, XML, ViewBinding, and ZEGOCLOUD Call Invitation Service. The project also includes a custom CameraX-based camera module with image preview, flash control, camera switching, and capture confirmation workflow.

Features

• User Login with unique user ID
• One-to-One Audio Calling
• One-to-One Video Calling
• Real-time Call Invitations
• ZEGOCLOUD Integration
• Custom In-App Camera
• Camera Preview Before Sending
• Front & Back Camera Switching
• Flash Support
• Capture, Retake & Confirm Workflow

Tech Stack

• Kotlin
• XML
• ViewBinding
• Android SDK
• CameraX
• ZEGOCLOUD Call Kit

Setup

1. Clone the repository
2. Create a Constants.kt file
3. Add your ZEGOCLOUD credentials:

object Constants {
    const val APP_ID: Long = YOUR_APP_ID
    const val APP_SIGN = "YOUR_APP_SIGN"
    const val RESOURCE_ID = "zego_uikit_call"
}

4. Sync Gradle
5. Run the application

Camera Module

The application includes a custom CameraX implementation with:

• Live Camera Preview
• Front/Back Camera Toggle
• Flash Control
• Image Capture
• Preview Screen
• Retake & Confirm Actions

Screenshots

License

This project is for learning and portfolio purposes.