SwiftUI Infinite TabView

A simple example demonstrating how to implement infinite swiping behavior using only three TabView pages in SwiftUI.
This technique avoids memory bloat and provides a smooth, continuous paging experience for calendar or carousel-like UIs.

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🎯 Overview

This demo shows how to: - Implement infinite month paging with TabView - Recycle three views (previous, current, next) for continuous swiping - Reset the tab index to maintain an endless loop - Handle direction detection via @State and .onDisappear - Prevent glitching with temporary interaction disabling

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🧠 Core Concept

Instead of generating dozens of pages for each month, this approach uses only three pages:

[-1] ← [0] → [+1]

Each time the user swipes left or right: 1. Detect direction from currentTab (-1, 0, or 1) 2. Update the currentDate (previous or next month) 3. Reset currentTab to 0
4. Re-render with the new previous / current / next dates

This creates the illusion of infinite paging without extra memory overhead.

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🧩 Code Structure

SwiftUI-InfiniteTabView/
├── InfiniteMonthPagingView.swift   # Main demo view
└── README.md                       # Project documentation

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🖥️ Preview

(You can add a GIF or screenshot here later)

#Preview {
    InfiniteMonthPagingView()
}

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📦 Technologies Used

• SwiftUI for UI and state management\
• TabView with .page style\
• @State and .onDisappear for paging control\
• DateFormatter for month display

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🚀 Getting Started

git clone https://github.com/<your-username>/SwiftUI-InfiniteTabView.git
cd SwiftUI-InfiniteTabView
open SwiftUI-InfiniteTabView.xcodeproj

Then run the preview or build in Xcode.

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🧾 License

This project is released under the MIT License.

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✨ Author

Developed by ** alchyo **
SwiftUI / iOS Developer
📍 Taiwan