Custom Calendar.

Requirements

iOS 11.0+ Xcode 9.0+ Swift 4.0+

Manual Installation

Copy Controller folder, Image folder and View folder to your project.

Usage

for slot booking

class CalenderView: UIView, UICollectionViewDelegate, UICollectionViewDataSource, UICollectionViewDelegateFlowLayout, MonthViewDelegate { var delegate: CalenderDelegate?

var numOfDaysInMonth = [31,28,31,30,31,30,31,31,30,31,30,31]
var currentMonthIndex: Int = 0
var currentYear: Int = 0
var presentMonthIndex = 0
var presentYear = 0
var todaysDate = 0
var firstWeekDayOfMonth = 0   //(Sunday-Saturday 1-7)

// Put your date in below array

var bookedSlotDate = [12,27,4]

override init(frame: CGRect) {
    super.init(frame: frame)
    
    initializeView()
}

func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell { let cell=collectionView.dequeueReusableCell(withReuseIdentifier: "Cell", for: indexPath) as! dateCVCell cell.backgroundColor=UIColor.clear if indexPath.item <= firstWeekDayOfMonth - 2 { cell.isHidden=true } else { let calcDate = indexPath.row-firstWeekDayOfMonth+2 cell.isHidden=false cell.dateLbl.text="(calcDate)"

        if calcDate < todaysDate && currentYear == presentYear && currentMonthIndex == presentMonthIndex  {
            cell.isUserInteractionEnabled=false
            cell.dateLbl.textColor = UIColor.lightGray
            
            // Apply your logic for slot selection which is already booked.
            
        } else if bookedSlotDate.contains(calcDate){
            cell.isUserInteractionEnabled=true
            cell.dateLbl.textColor = UIColor.red
        } else {
            cell.isUserInteractionEnabled=true
            cell.dateLbl.textColor = Style.activeCellLblColor
        }
    }
    return cell
}




 func didTapDate(date: String, available: Bool) {
 // Get the selected date
    if available == true {
        print(date)
    } else {
        showAlert()
    }
}