objc-CGCalendarView

A Lightweight Horizontal Calendar/Date Picker inspired by Square's TimesSquare https://github.com/square/objc-TimesSquare

It uses UITableView
- Day cells (UITableViewCell) will be reused to limit memory footprint.
It uses NSCalendar to support internationalization and localization.

Created for CapitalGene iOS App

Usage

Initalize CGCalendarView

import CGCalendarView.h and CGCalendarCell.h (or your customized UITableViewCell)

- (void)setupCalendarView
{
    // initalize calendarView with frame
    self.calendarView = [[CGCalendarView alloc] initWithFrame:CGRectMake(0, 20, 320, CG_CALENDAR_VIEW_HEIGHT)];
    // use a **global** NSCalendar
    self.calendarView.calendar = calendar;

    // Set the background color
    self.calendarView.backgroundColor = [UIColor lightGrayColor];

    // Set the RowCellClass
    self.calendarView.rowCellClass = [CGCalendarCell class];

    // The beginning date
    self.calendarView.firstDate = [NSDate dateWithTimeIntervalSinceNow: -60 * 60 * 24 * 30];

    // The end date
    self.calendarView.lastDate = [NSDate dateWithTimeIntervalSinceNow:60 * 60 * 24 * 180];

    // didSelectDate delegate
    self.calendarView.delegate = self;

    // Add the calendarView as a subview
    [self.view addSubview:self.calendarView];

    // Select Today
    self.calendarView.selectedDate = [NSDate date];

    // Prepare a dateformatter for displaying the selected
    // date
    self.DF = [[NSDateFormatter alloc] init];
    [self.DF setDateFormat:@"yyyy-MM-dd"];
}

Delegate Methods

- (BOOL)calendarView:(CGCalendarView *)calendarView shouldSelectDate:(NSDate *)date;
- (void)calendarView:(CGCalendarView *)calendarView didSelectDate:(NSDate *)date;

Customization

CGCalendarView doesn't require its rowCellClass to be a subclass of CGCalendarCell. Any subclasses of UITableViewCell with the following properties/methods will work:

- (id)initWithCalendar:(NSCalendar *)calendar reuseIdentifier:(NSString *)reuseIdentifier;

+ (CGFloat)cellHeight;

- (void)setDate: (NSDate*)date

Demo Screenshot

Authors

Chen Liang

Credits

Inspired by https://github.com/square/objc-TimesSquare
UIImage+Additions, Piotr Bernad
UIView+ViewHelpers, Nathan Mock

License:

Licensed under the MIT license

dshashidhar/objc-CGCalendarView