Awesome

RSDayFlow

iOS 12+ Calendar with Infinite Scrolling. Only need 4 lines of code to set up.

RSDayFlow is a slim fork of DayFlow with updates and extensions:

Visual feedback of the currently selected cell
Possibility to mark the date
Design like iOS 7
Much more updates

Installation

RSDayFlow requires iOS 12.0 or later.

Using Swift Package Manager

To add the RSDayFlow package to your Xcode project, select File > Swift Packages > Add Package Dependency and enter the repository URL.
```
 https://github.com/ruslanskorb/RSDayFlow.git
```

Using CocoaPods

Add the pod RSDayFlow to your Podfile.
```
pod 'RSDayFlow'
```
Run pod install from Terminal, then open your app's .xcworkspace file to launch Xcode.

Using Carthage

Add the ruslanskorb/RSDayFlow project to your Cartfile.
```
github "ruslanskorb/RSDayFlow"
```
Run carthage update, then follow the additional steps required to add the iOS and/or Mac frameworks into your project.

Basic Usage

Import the class header.

#import "RSDFDatePickerView.h"

Just create your date picker view and set a delegate / a data source if needed.

- (void)viewDidLoad
{
    [super viewDidLoad];
    
    RSDFDatePickerView *datePickerView = [[RSDFDatePickerView alloc] initWithFrame:self.view.bounds];
    datePickerView.delegate = self;
    datePickerView.dataSource = self;
    [self.view addSubview:datePickerView];
}

Delegate (optional)

RSDFDatePickerView provides three delegate methods. The method datePickerView:shouldHighlightDate: asks the delegate if the date should be highlighted during tracking. The method datePickerView:shouldSelectDate: asks the delegate if the specified date should be selected. The method datePickerView:didSelectDate: called when a user click on a specific date. To use them, implement the delegate in your view controller.

@interface ViewController () <RSDFDatePickerViewDelegate>

Then implement the delegate functions.

// Returns YES if the date should be highlighted or NO if it should not.
- (BOOL)datePickerView:(RSDFDatePickerView *)view shouldHighlightDate:(NSDate *)date
{
    return YES;
}

// Returns YES if the date should be selected or NO if it should not.
- (BOOL)datePickerView:(RSDFDatePickerView *)view shouldSelectDate:(NSDate *)date
{
    return YES;
}

// Prints out the selected date.
- (void)datePickerView:(RSDFDatePickerView *)view didSelectDate:(NSDate *)date
{
    NSLog(@"%@", [date description]);
}

DataSource (optional)

RSDFDatePickerView provides three data source methods. The method datePickerView:shouldMarkDate: asks the data source if the date should be marked. The method datePickerView:markImageColorForDate: asks the data source about the color of the default mark image for the specified date. The method datePickerView:markImageForDate: asks the data source about the mark image for the specified date. The method datePickerView:markImageColorForDate: will be ignored if the method datePickerView:markImageForDate: is implemented. To use these methods, implement the data source in your view controller.

@interface ViewController () <RSDFDatePickerViewDataSource>

Then implement the data source functions.

// Returns YES if the date should be marked or NO if it should not.
- (BOOL)datePickerView:(RSDFDatePickerView *)view shouldMarkDate:(NSDate *)date
{
    // The date is an `NSDate` object without time components.
    // So, we need to use dates without time components.
    
    NSCalendar *calendar = [NSCalendar currentCalendar];
    unsigned unitFlags = NSYearCalendarUnit | NSMonthCalendarUnit |  NSDayCalendarUnit;
    NSDateComponents *todayComponents = [calendar components:unitFlags fromDate:[NSDate date]];
    NSDate *today = [calendar dateFromComponents:todayComponents];
    
    return [date isEqual:today];
}

// Returns the color of the default mark image for the specified date.
- (UIColor *)datePickerView:(RSDFDatePickerView *)view markImageColorForDate:(NSDate *)date
{
    if (arc4random() % 2 == 0) {
        return [UIColor grayColor];
    } else {
        return [UIColor greenColor];
    }
}

// Returns the mark image for the specified date.
- (UIImage *)datePickerView:(RSDFDatePickerView *)view markImageForDate:(NSDate *)date
{
    if (arc4random() % 2 == 0) {
        return [UIImage imageNamed:@"img_gray_mark"];
    } else {
        return [UIImage imageNamed:@"img_green_mark"];
    }
}

Customization

Every view is customizable to fit your need. Create a subclass of the desired view and override the default values.

Coming Soon

If you would like to request a new feature, feel free to raise as an issue.

Demo

Build and run the RSDayFlowExample project in Xcode to see RSDayFlow in action. Have fun. Make it faster. Fork and send pull requests. Figure out hooks for customization.

Contact

Ruslan Skorb

License

This project is is available under the MIT license. See the LICENSE file for more info. Attribution by linking to the project page is appreciated.