SwiftUI Button Image When Pres... Note

SwiftUI Button Image When Pressed

To change the image a SwiftUI button shows while the user is pressing the button, you can create a custom button style that accepts a title and two images for the default and pressed states. This custom style can be achieved by creating a struct that conforms to the ButtonStyle protocol. The ButtonStyleConfiguration gives you access to the button label, isPressed state, and button role, which can be used to determine the image to display. In the makeBody method, you can check the button configuration and return a label with the correct image based on the isPressed state. You can then use this custom style to build a specific type of button, such as an InfoButton, that uses the custom style to display a different image when pressed. The InfoButton can be used in your app by calling it with an action to perform when the button is pressed. You can also add an animation to the custom style to scale the image up when pressed by using the symbolEffect modifier. This approach allows you to achieve a similar effect to UIKit's button state configurations in SwiftUI. The custom button style can be reused for other buttons in your app, making it a convenient solution. Overall, creating a custom button style is a good way to customize the appearance of SwiftUI buttons, especially when the built-in styles do not meet your needs.