# Implementing a Customizable Calendar View in SwiftUI

Creating a Calendar View in SwiftUI

When working with forms in mobile applications, handling dates can be a complex task. In this article, we will explore how to implement a calendar view in a SwiftUI application using the DatePicker control and the FSCalendar library.

Getting Started

To begin, let’s create a new SwiftUI project in Xcode. Once the project is set up, we can start building our calendar view.

Using DatePicker

The DatePicker control in SwiftUI allows users to select dates from a wheel picker or a calendar view. We can use this control to create a simple calendar view. Here’s an example of how to use it:

“`swift
struct ContentView: View {
@State private var selectedDate = Date()

var body: some View {
    DatePicker("Select Date", selection: $selectedDate)
        .padding()
}

}
“`

This code creates a simple date picker with a title and a binding to a Date variable.

Customizing the Calendar View

To create a more customized calendar view, we can use the datePickerStyle modifier to display the date picker as a calendar view. We can also use the displayedComponents parameter to specify which components of the date should be displayed.

“`swift
struct ContentView: View {
@State private var selectedDate = Date()

var body: some View {
    DatePicker("Select Date", selection: $selectedDate, displayedComponents: [.date])
        .datePickerStyle(GraphicalDatePickerStyle())
        .padding()
}

}
“`

This code creates a calendar view with a graphical style and only displays the date component.

Using FSCalendar

While the DatePicker control provides a basic calendar view, we can use the FSCalendar library to create a more customized and feature-rich calendar view. To use FSCalendar, we need to install it via Swift Package Manager.

Once installed, we can import FSCalendar and use its FSCalendar view to create a calendar view.

“`swift
import FSCalendar

struct ContentView: View {
var body: some View {
FSCalendar()
.padding()
}
}
“`

This code creates a basic calendar view using FSCalendar.

Customizing FSCalendar

FSCalendar provides a range of customization options, including the ability to change the calendar’s appearance and behavior. We can use these options to create a customized calendar view that meets our needs.

swift
struct ContentView: View {
var body: some View {
FSCalendar()
.calendar(.gregorian)
.firstWeekday(1)
.headerHeight(40)
.weekdays([.monday, .tuesday, .wednesday, .thursday, .friday, .saturday, .sunday])
.padding()
}
}


This code creates a customized calendar view with a Gregorian calendar, Monday as the first weekday, and a header height of 40 points.

Conclusion

In this article, we explored how to create a calendar view in SwiftUI using the DatePicker control and the FSCalendar library. We also looked at how to customize the calendar view to meet our needs. Whether you’re building a simple or complex app, a calendar view can be a useful feature to include.