A highly customizable calendar control for iOS with horizontal and vertical layouts, week view mode, and internationalization support.
JTCalendar is a customizable calendar control library for iOS applications. It provides developers with ready-to-use calendar views that can be integrated into iOS apps with horizontal or vertical scrolling, week view modes, and extensive customization options through delegate methods. The library solves the problem of implementing complex calendar interfaces from scratch.
iOS developers building applications that require calendar functionality, such as scheduling apps, event planners, booking systems, or any app needing date selection interfaces.
Developers choose JTCalendar for its balance of out-of-the-box functionality and deep customization capabilities, supporting both Objective-C and Swift with comprehensive documentation and example projects.
A customizable calendar view for iOS.
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Offers dedicated JTHorizontalCalendarView and JTVerticalCalendarView classes, allowing developers to choose between horizontal or vertical scrolling based on app design needs.
Supports deep customization through delegate methods like calendar:prepareDayView: and subclassing, enabling nearly every visual aspect to be tailored, as shown in the example code snippets.
Built-in ability to change locale and timezone settings via JTCalendarManager, making it easy to adapt the calendar for different regions without additional libraries.
Can switch to displaying a single week at a time using the weekModeEnabled setting, useful for focused date interactions in scheduling or event apps.
Provides smooth page transitions between months/weeks with methods like loadNextPageWithAnimation and callbacks for page changes, enhancing user experience.
Setup requires manual creation of JTCalendarMenuView and content views, plus implementing JTCalendarDelegate, which is more complex than simpler, more integrated libraries.
The README warns that prepareDayView is called very often and recommends caching data to avoid slowdowns, indicating potential performance bottlenecks in data-heavy apps.
Lacks support for SwiftUI and relies on older UIKit patterns, making it less suitable for apps built with newer iOS frameworks or seeking future-proof solutions.
For week mode, developers must manually adjust the height of calendarContentView, as stated in the WARNING section, adding extra work and potential for errors.