Is react-native-calendars compatible with Expo?

Yes, it's pure JavaScript with no native code, so it works seamlessly with Expo and CRNA without ejecting, as confirmed in the README examples.

How to customize day cells in react-native-calendars?

Use the theme prop for global styles or custom rendering functions, and refer to the official documentation for detailed examples on modifying day appearance.

react-native-calendars vs react-native-calendar-picker?

React Native Calendars offers more features like agenda views and multi-period markings, while calendar-picker is often simpler but less customizable for complex use cases.

Does react-native-calendars support RTL languages?

Locale support is configurable via LocaleConfig, but RTL layout might require additional styling adjustments; check the docs for specific locale examples.

How to handle performance issues with many marked dates?

Optimize by limiting markedDates to visible ranges and using virtualization in CalendarList, but be aware of potential JS bottlenecks in dense calendars.

Can I use react-native-calendars for web projects?

No, it's designed exclusively for React Native mobile apps; for web, consider alternatives like react-big-calendar or fullCalendar.

react-native-calendars

MITTypeScript1.1314.0

A declarative cross-platform React Native calendar component library for iOS and Android.

GitHub

10.3k stars3.1k forks0 contributors

What is react-native-calendars?

React Native Calendars is a comprehensive library of customizable calendar components for React Native applications. It provides flexible, feature-rich calendar views that work seamlessly on both iOS and Android, eliminating the need to build calendar interfaces from scratch. The library emphasizes a declarative approach, allowing developers to implement complex calendar functionalities with minimal code while maintaining full customization control.

Target Audience

React Native developers building mobile applications that require calendar interfaces, such as scheduling apps, booking systems, or event planners. It is particularly useful for teams using Expo or CRNA since it requires no native code.

Value Proposition

Developers choose React Native Calendars for its pure JavaScript implementation, extensive customization options, and comprehensive feature set including date marking, locale support, and accessibility. It stands out by offering swipeable, scrollable, and semi-infinite calendar lists with detailed documentation and examples, reducing development time compared to building from scratch.

Overview

React Native Calendar Components 🗓️ 📆

Use Cases

Best For

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Building scheduling or booking applications that require interactive date selection and visual indicators.

Implementing multi-language support in calendar interfaces with automatic locale formatting.

Creating custom-styled calendars with extensive theming options for brand consistency.

Developing accessible mobile apps with built-in accessibility support for inclusive user experiences.

Integrating calendar components into Expo or CRNA projects without ejecting or using native code.

Adding complex date markings like dots, periods, or custom indicators for event tracking.

Not Ideal For

Applications demanding native-performance calendar scrolling with thousands of dates in real-time, due to its pure JavaScript implementation.
Projects requiring deep integration with platform-specific calendar APIs like iOS EventKit or Android CalendarProvider for advanced syncing.
Teams preferring minimal, zero-configuration calendars without extensive styling options, as customization requires significant props.

Pros & Cons

Pros

Expo-Friendly Pure JS

No native code is required, ensuring seamless compatibility with Expo and CRNA without ejecting, as highlighted in the README.

Highly Customizable Styling

Extensive theme configuration allows full control over colors, borders, and day appearances, with examples for global theming.

Comprehensive Feature Set

Supports dot, period, multi-dot, and custom date markings, plus swipeable, scrollable views and locale formatting out of the box.

Built-in Accessibility

Includes accessibility support by default, ensuring inclusive user experiences without additional setup.

Cons

JavaScript Performance Limitations

Pure JS implementation can lead to slower rendering with very large date sets or complex markings, compared to native alternatives.

Verbose Configuration

Achieving simple customizations often requires extensive props and state management, making code bulky for basic needs.

React Native Exclusive

Limited to React Native apps only, with no support for web or other cross-platform frameworks, reducing flexibility.

Frequently Asked Questions

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