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jonathantribouharet/JTCalendar: A customizable calendar view for iOS.

原作者: [db:作者] 来自: 网络 收藏 邀请

开源软件名称:

jonathantribouharet/JTCalendar

开源软件地址:

https://github.com/jonathantribouharet/JTCalendar

开源编程语言:

Objective-C 99.3%

开源软件介绍:

JTCalendar

CI Status Version Carthage compatible License Platform

JTCalendar is an easily customizable calendar control for iOS.

Installation

With CocoaPods, add this line to your Podfile.

pod 'JTCalendar', '~> 2.0'

Carthage

To use this project with Carthage, add this line to your Cartfile.

github "jonathantribouharet/JTCalendar" ~> 2.2

Screenshots

Example Example

Warning

The part below the calendar in the 2nd screenshot is not provided.

Features

  • horizontal and vertical calendar
  • highly customizable either by subclassing default class provided or by creating your own class implementing a protocol
  • support internationalization
  • week view mode
  • limited range, you can define a start and an end to you calendar

Usage

Basic usage

You have to create two views in your UIViewController:

  • The first view is JTCalendarMenuView and it represents the part with the months names. This view is optional.
  • The second view is JTHorizontalCalendarView or JTVerticalCalendarView, it represents the calendar itself.

Your UIViewController have to implement JTCalendarDelegate, all methods are optional.

#import <UIKit/UIKit.h>

#import <JTCalendar/JTCalendar.h>

@interface ViewController : UIViewController<JTCalendarDelegate>

@property (weak, nonatomic) IBOutlet JTCalendarMenuView *calendarMenuView;
@property (weak, nonatomic) IBOutlet JTHorizontalCalendarView *calendarContentView;

@property (strong, nonatomic) JTCalendarManager *calendarManager;

@end

JTCalendarManager is used to coordinate calendarMenuView and calendarContentView and provide a default behavior.

@implementation ViewController

- (void)viewDidLoad
{
    [super viewDidLoad];
        
    _calendarManager = [JTCalendarManager new];
    _calendarManager.delegate = self;
    
    [_calendarManager setMenuView:_calendarMenuView];
    [_calendarManager setContentView:_calendarContentView];
    [_calendarManager setDate:[NSDate date]];
}

@end

The Example project contains some use cases you may check before asking questions.

Advanced usage

Even if all methods of JTCalendarManager are optional you won't get far without implementing at least the two next methods:

  • calendar:prepareDayView: this method is used to customize the design of the day view for a specific date. This method is called each time a new date is set in a dayView or each time the current page change. You can force the call to this method by calling [_calendarManager reload];.
- (void)calendar:(JTCalendarManager *)calendar prepareDayView:(JTCalendarDayView *)dayView
{
    dayView.hidden = NO;
    
    // Test if the dayView is from another month than the page
    // Use only in month mode for indicate the day of the previous or next month
    if([dayView isFromAnotherMonth]){ 
        dayView.hidden = YES;
    }
    // Today
    else if([_calendarManager.dateHelper date:[NSDate date] isTheSameDayThan:dayView.date]){
        dayView.circleView.hidden = NO;
        dayView.circleView.backgroundColor = [UIColor blueColor];
        dayView.dotView.backgroundColor = [UIColor whiteColor];
        dayView.textLabel.textColor = [UIColor whiteColor];
    }
    // Selected date
    else if(_dateSelected && [_calendarManager.dateHelper date:_dateSelected isTheSameDayThan:dayView.date]){
        dayView.circleView.hidden = NO;
        dayView.circleView.backgroundColor = [UIColor redColor];
        dayView.dotView.backgroundColor = [UIColor whiteColor];
        dayView.textLabel.textColor = [UIColor whiteColor];
    }
    // Another day of the current month
    else{
        dayView.circleView.hidden = YES;
        dayView.dotView.backgroundColor = [UIColor redColor];
        dayView.textLabel.textColor = [UIColor blackColor];
    }
    
    // Your method to test if a date have an event for example
    if([self haveEventForDay:dayView.date]){
        dayView.dotView.hidden = NO;
    }
    else{
        dayView.dotView.hidden = YES;
    }
}
  • calendar:didTouchDayView: this method is used to respond to a touch on a dayView. For example you can indicate to display another month if dayView is from another month.
- (void)calendar:(JTCalendarManager *)calendar didTouchDayView:(JTCalendarDayView *)dayView
{
    // Use to indicate the selected date
    _dateSelected = dayView.date;
    
    // Animation for the circleView
    dayView.circleView.transform = CGAffineTransformScale(CGAffineTransformIdentity, 0.1, 0.1);
    [UIView transitionWithView:dayView
                      duration:.3
                       options:0
                    animations:^{
                        dayView.circleView.transform = CGAffineTransformIdentity;
                        [_calendarManager reload];
                    } completion:nil];
    
    // Load the previous or next page if touch a day from another month
    if(![_calendarManager.dateHelper date:_calendarContentView.date isTheSameMonthThan:dayView.date]){
        if([_calendarContentView.date compare:dayView.date] == NSOrderedAscending){
            [_calendarContentView loadNextPageWithAnimation];
        }
        else{
            [_calendarContentView loadPreviousPageWithAnimation];
        }
    }
}

Switch to week view

If you want see just one week at a time, you have to set the isWeekMode to YES and reload the calendar.

_calendarManager.settings.weekModeEnabled = YES;
[_calendarManager reload];

WARNING

When you change the mode, it doesn't change the height of calendarContentView, you have to do it yourself. See the Example project for more details.

Customize the design

For customize the design you have to implement some methods depending of what parts you want to custom. Check the JTCalendarDelegate file and the Example project.

For example:

// This method is independent from the date, it's call only at the creation of the dayView.
// For customize the dayView depending of the date use `prepareDayView` method
- (UIView<JTCalendarDay> *)calendarBuildDayView:(JTCalendarManager *)calendar
{
    JTCalendarDayView *view = [JTCalendarDayView new];
    view.textLabel.font = [UIFont fontWithName:@"Avenir-Light" size:13];
    view.textLabel.textColor = [UIColor blackColor];
    
    return view;
}

Pagination

The content views (JTHorizontalCalendarView and JTVerticalCalendarView) are just subclass of UIScrollView. Each time the current page change, calendarDidLoadNextPage or calendarDidLoadPreviousPage is called. The content views provide two method for display the previous or next page with an animation loadNextPageWithAnimation and loadPreviousPageWithAnimation. You can limit the range of the calendar by implementing canDisplayPageWithDate method.

// Used to limit the date for the calendar
- (BOOL)calendar:(JTCalendarManager *)calendar canDisplayPageWithDate:(NSDate *)date
{
    return [_calendarManager.dateHelper date:date isEqualOrAfter:_minDate andEqualOrBefore:_maxDate];
}

Vertical calendar

If you use JTVerticalCalendarView for having a vertical calendar, you have some settings you have to set.

- (void)viewDidLoad
{
    [super viewDidLoad];
    
    _calendarManager = [JTCalendarManager new];
    _calendarManager.delegate = self;
    
    _calendarManager.settings.pageViewHaveWeekDaysView = NO; // You don't want WeekDaysView in the contentView
    _calendarManager.settings.pageViewNumberOfWeeks = 0; // Automatic number of weeks
    
    _weekDayView.manager = _calendarManager; // You set the manager for WeekDaysView
    [_weekDayView reload]; // You load WeekDaysView manually

    [_calendarManager setMenuView:_calendarMenuView];
    [_calendarManager setContentView:_calendarContentView];
    [_calendarManager setDate:[NSDate date]];
    
    _calendarMenuView.scrollView.scrollEnabled = NO; // The scroll is not supported with JTVerticalCalendarView
}

Internationalization / Localization (change first weekday)

For changing the locale and the timeZone just do:

_calendarManager.dateHelper.calendar.timeZone = [NSTimeZone timeZoneWithAbbreviation:@"CDT"];
_calendarManager.dateHelper.calendar.locale = [NSLocale localeWithLocaleIdentifier:@"fr_FR"];
[_calendarManager reload];

For changing locale and timeZone in Swift use:

let locale = Locale(identifier: "fr_FR")
let timeZone = TimeZone.init(abbreviation: "CDT")
calendarManager = JTCalendarManager(locale: locale, andTimeZone: timeZone)

Date comparaison

Be careful when you compare two different dates, you have to take care of the time zone. An helper is provided for some basic operations:

[_calendarManager.dateHelper date:dateA isTheSameMonthThan:dateB];
[_calendarManager.dateHelper date:dateA isTheSameWeekThan:dateB];
[_calendarManager.dateHelper date:dateA isTheSameDayThan:dateB];

// Use to limit the calendar range
[_calendarManager.dateHelper date:date isEqualOrAfter:minDate andEqualOrBefore:maxDate];

Optimization

Every methods in the delegate are called in the main thread, you have to be really careful, in particular in the prepareDayView method which is called very often.

If you have to fetch some data from something slow, I recommend to create a cache and query this cache in prepareDayView method. You have to cache the data from the next pages and update this cache asynchronously (in another thread via dispatch_async) when a new page is loaded (via calendarDidLoadNextPage and calendarDidLoadPreviousPage methods).

Questions

Before asking any questions be sure to explore the Example project. Check also JTCalendarDelegate and JTCalendarSettings files.

Don't use NSLog to print date use a NSDateFormatter, NSLogdoesn't take care of the timezone.

NSDateFormatter *dateFormatter = [_calendarManager.dateHelper createDateFormatter];
dateFormatter.dateFormat = @"yyyy'-'MM'-'dd' 'HH':'mm':'ss";
NSLog(@"%@", [dateFormatter stringFromDate:yourDate]);

Requirements

  • iOS 7 or higher
  • Automatic Reference Counting (ARC)

Author

License

JTCalendar is released under the MIT license. See the LICENSE file for more info.




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