How to implement cell editing in SpreadsheetView?

SpreadsheetView doesn't support editing out of the box; you must add UITextField or custom views to cells and manually handle data updates via the data source. Check the examples for interaction patterns, but expect to write additional code for validation and state management.

SpreadsheetView vs UICollectionView for a data grid?

SpreadsheetView is specialized for spreadsheet layouts with features like fixed headers and cell merging, while UICollectionView is more general-purpose. Use SpreadsheetView for Excel-like interfaces; otherwise, UICollectionView might be simpler and more flexible for basic grids.

Can I use SpreadsheetView with SwiftUI?

Yes, but indirectly. You need to wrap it in a UIViewRepresentable to integrate into SwiftUI apps, as it's a UIKit-based framework. This adds boilerplate code and may complicate SwiftUI's declarative workflow.

How to handle performance with thousands of rows?

Leverage the memory-efficient rendering and circular scrolling features. Optimize data source methods and ensure cell reuse, similar to UICollectionView best practices, to maintain smooth scrolling. The framework is designed for large datasets, but proper implementation is key.

Is there support for exporting to Excel?

No, SpreadsheetView is purely a UI component for display. Exporting data requires additional libraries or custom code to generate Excel files from your app's data model, as the framework doesn't include export functionality.

How to customize merged cells appearance?

Set the gridStyle and borders properties on the merged cell instance, just like individual cells. Define the merge range in the mergedCells data source method, and apply styling per cell to control gridlines and borders visually.

Open-Awesome

SpreadsheetView

MITHTMLv0.9.1

A fully configurable spreadsheet view framework for iOS apps to create complex layouts like schedules, Gantt charts, and timetables.

GitHub

3.5k stars476 forks0 contributors

What is SpreadsheetView?

SpreadsheetView is a Swift framework for iOS that provides a fully configurable spreadsheet-style user interface. It allows developers to create complex grid-based layouts such as schedules, Gantt charts, and timetables directly within their apps, solving the need for Excel-like data presentation on mobile devices.

Target Audience

iOS developers building apps that require tabular data displays, such as scheduling tools, project management apps, or educational timetables.

Value Proposition

Developers choose SpreadsheetView for its high customizability, performance-optimized scrolling, and familiar UICollectionView-like API, which simplifies creating advanced spreadsheet interfaces without relying on web views or heavy third-party libraries.

Overview

Full configurable spreadsheet view user interfaces for iOS applications. With this framework, you can easily create complex layouts like schedule, gantt chart or timetable as if you are using Excel.

Use Cases

Best For

Building schedule or timetable interfaces for educational or event apps
Creating Gantt chart visualizations for project management tools
Implementing data grids with fixed headers for financial or reporting apps
Developing custom spreadsheet-like UIs for data entry or analysis on iOS
Adding Excel-style cell merging and formatting to mobile applications
Enabling infinite scrolling in tabular data views for large datasets

Not Ideal For

Cross-platform apps needing spreadsheet UIs on Android or web
Projects requiring out-of-the-box cell editing with formulas and validation
Teams wanting a drag-and-drop interface builder without coding
Apps with simple table needs where UITableView suffices

Pros & Cons

Pros

Highly Customizable UI

Allows fine-grained control over gridlines, borders, and cell spacing per cell, enabling Excel-like styling as demonstrated in the Gantt chart and timetable examples.

Performance Optimized

Built for fast scrolling and memory efficiency, with well-unit tested code ensuring reliability for handling large datasets smoothly.

Familiar API Design

Uses a UICollectionView-like data source pattern, reducing the learning curve for iOS developers already accustomed to Apple's native frameworks.

Advanced Layout Features

Includes fixed headers, cell merging, and circular infinite scrolling, making it ideal for complex interfaces like schedules and Gantt charts.

Cons

No Built-in Editing

Focuses solely on display and navigation; implementing cell editing, data validation, or interactive features requires significant custom development beyond the framework.

UIKit-Only Dependency

Built on UIKit, it lacks native SwiftUI support, forcing developers to use wrappers like UIViewRepresentable, which complicates integration in modern SwiftUI projects.

Complex Initial Setup

Configuring merged cells, custom gridlines, and circular scrolling involves more code and understanding compared to basic UITableView, as seen in the detailed usage examples.

Frequently Asked Questions

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