Theme

React Native Calendar Kit allows you to customize the appearance of the calendar using a theme prop. This prop accepts an object that defines various style properties for different parts of the calendar.

Usage

To apply a custom theme, pass a theme prop to the CalendarContainer component:

import {
  CalendarBody,
  CalendarContainer,
  CalendarHeader,
  DeepPartial,
  ThemeConfigs,
} from '@howljs/calendar-kit';
import React from 'react';

const customTheme: DeepPartial<ThemeConfigs> = {
  // Your custom theme properties here
};

const Calendar = () => {
  return (
    <CalendarContainer theme={customTheme}>
      <CalendarHeader />
      <CalendarBody />
    </CalendarContainer>
  );
};

export default Calendar;

Theme Properties

The theme object can include the following properties:

Colors

• colors: An object containing color definitions:
  • primary: Primary color (default color for various elements)
  • onPrimary: Color for elements on top of the primary color
  • background: Background color
  • onBackground: Color for elements on top of the background
  • border: Border color
  • text: Default text color
  • surface: Surface color (e.g., week number background, unavailable hour background)
  • onSurface: Color for elements on top of the surface color

Text Styles

• textStyle: Default text style (applies to all text unless overridden)

Hour Column

• hourBackgroundColor: Background color for the hour column
• hourTextStyle: Text style for hours in the hour column

Day Bar

• headerBackgroundColor: Background color for the header
• headerContainer: Style for the header container
• dayBarContainer: Style for the day bar container

Day Item

• dayContainer: Style for each day container
• dayName: Text style for day names
• dayNumber: Text style for day numbers
• dayNumberContainer: Style for the day number container
• todayName: Text style for today's day name
• todayNumber: Text style for today's day number
• todayNumberContainer: Style for today's day number container

All-Day Events

• allDayEventsContainer: Style for the all-day events container
• headerBottomContainer: Style for the bottom part of the header
• countContainer: Style for the event count container
• countText: Text style for the event count

Single Day View

• singleDayContainer: Style for the single day view container
• singleDayEventsContainer: Style for the events container in single day view

Week Number

• weekNumber: Text style for week numbers
• weekNumberContainer: Style for the week number container

Now Indicator

• nowIndicatorColor: Color for the "now" indicator line

Out of Range and Unavailable Hours

• outOfRangeBackgroundColor: Background color for out-of-range dates
• unavailableHourBackgroundColor: Background color for unavailable hours

Events

• eventContainerStyle: Default container style for events
• eventTitleStyle: Default text style for event titles

Example

Here's an example of a custom theme:

const customTheme = {
    colors: {
      primary: '#3498db',
      onPrimary: '#ffffff',
      background: '#f5f5f5',
      onBackground: '#333333',
      border: '#e0e0e0',
      text: '#333333',
      surface: '#ffffff',
      onSurface: '#666666',
    },
    textStyle: {
      fontFamily: 'Roboto',
    },
    hourTextStyle: {
      fontSize: 12,
      fontWeight: 'bold',
    },
    dayName: {
      fontSize: 14,
      color: '#666666',
    },
    dayNumber: {
      fontSize: 16,
      fontWeight: 'bold',
    },
    todayNumberContainer: {
      backgroundColor: '#3498db',
    },
    todayNumber: {
      color: '#ffffff',
    },
    eventContainerStyle: {
      borderRadius: 4,
    },
    eventTitleStyle: {
      fontSize: 12,
      fontWeight: 'bold',
    },
};

function MyCalendar() {
    return <CalendarKit theme={customTheme} />;
}

This example demonstrates how to create a custom theme that changes various aspects of the calendar's appearance, including colors, fonts, and styles for different components.