7 Login Screens in SwiftUI – Modern & Practical

Introduction

SwiftUI provides several built-in login screens that can be used to provide a secure and user-friendly login experience in your apps. These login screens can be customized to fit the needs of your app, and can be used with various authentication systems. In this tutorial, we will explore the 7 different login screens available in SwiftUI, and learn how to use them effectively.

What are the 7 Login Screens in SwiftUI?

SwiftUI provides the following 7 login screens:

1. AuthenticationPrompt: This screen allows users to enter their login credentials, such as username and password.
2. AuthenticationForm: This screen provides a more customizable login experience, allowing you to add custom fields and validation.
3. TextPasswordEntry: This screen allows users to enter their password in plain text.
4. PasswordEntry: This screen provides a secure way to enter passwords, hiding the characters as they are typed.
5. SecureTextEntry: This screen is similar to PasswordEntry, but also provides the option to display the entered password.
6. UsernamePasswordComboField: This screen provides a simple way to enter both a username and password.
7. SecondaryButtonAlert: This screen provides an alternative way to present login credentials, using an alert with a secondary button.

Using the 7 Login Screens in SwiftUI

In this tutorial, we will explore each of the 7 login screens available in SwiftUI, and learn how to use them effectively. We will start by creating a simple login screen using AuthenticationPrompt, and then customize it using AuthenticationForm. We will also learn how to use the other login screens, and discuss the benefits and drawbacks of each one.

Step 1: Creating a Simple Login Screen using AuthenticationPrompt

To create a simple login screen using AuthenticationPrompt, you can use the following code:

import SwiftUI

struct LoginScreen: View {
    @State private var username = ""
    @State private var password = ""

    var body: some View {
        AuthenticationPrompt {
            Text("Enter your username and password")
               .font(.title)
        } {
            VStack(alignment:.leading) {
                Text("Username:")
                TextField("Username", text: $username)
                   .padding()
                Text("Password:")
                SecureField("Password", text: $password)
                   .padding()
            }
           .padding()
        }
    }
}

In this code, we define a LoginScreen view that contains an AuthenticationPrompt view. The AuthenticationPrompt view is a built-in SwiftUI view that provides a simple way to enter login credentials. The title parameter is used to set the title of the prompt, and the body parameter is used to set the content of the prompt.

Step 2: Customizing the Login Screen using AuthenticationForm

To customize the login screen using AuthenticationForm, you can use the following code:

import SwiftUI

struct LoginScreen: View {
    @State private var username = ""
    @State private var password = ""

    var body: some View {
        AuthenticationForm {
            Section {
                TextField("Username", text: $username)
                   .padding()
                SecureField("Password", text: $password)
                   .padding()
            }
           .padding()
        }
    }
}

In this code, we define a LoginScreen view that contains an AuthenticationForm view. The AuthenticationForm view provides a more customizable login experience, allowing you to add custom fields and validation.

Step 3: Using the Other Login Screens

The other login screens available in SwiftUI are TextPasswordEntry, PasswordEntry, SecureTextEntry, UsernamePasswordComboField, and SecondaryButtonAlert. Each of these screens has its own unique features and benefits, and can be used to provide a customized login experience for your app.

For example, you can use TextPasswordEntry to provide a simple way to enter passwords in plain text:

import SwiftUI

struct LoginScreen: View {
    @State private var password = ""

    var body: some View {
        TextPasswordEntry(text: $password)
           .padding()
    }
}

Or you can use PasswordEntry to provide a secure way to enter passwords, hiding the characters as they are typed:

import SwiftUI

struct LoginScreen: View {
    @State private var password = ""

    var body: some View {
        PasswordEntry(text: $password)
           .padding()
    }
}

Conclusion

In this tutorial, we have learned how to use the 7 login screens available in SwiftUI to provide a customized login experience for our app. We have seen how to use AuthenticationPrompt and AuthenticationForm to create a simple and customizable login screen, and how to use the other login screens to provide a secure and user-friendly login experience. By following this tutorial, you should now have a good understanding of how to use the login screens available in SwiftUI, and how to create a customized login experience for your app.