Chapter 7
Understanding State and Binding

State management is a crucial aspect of application development that every developer must address. Let's consider the scenario of developing a music player app. When a user taps the Play button, it should transition to a Stop button. In your implementation, you need a mechanism to track the application's state, enabling you to determine when to alter the button's appearance.

SwiftUI provides several built-in features for state management. One of these features is the @State property wrapper. When you annotate a property with @State, SwiftUI automatically stores it within your application. Furthermore, views that utilize this property are automatically notified of any changes to its value. As a result, when the state changes, SwiftUI recomputes the affected views and updates the application's appearance accordingly.

Doesn't that sound great? However, I understand that state management can be a bit confusing at first. To gain a better understanding of state and binding, it would be helpful to go through the coding examples and exercises in this chapter. By working on these examples, you will develop a stronger grasp of this crucial concept in SwiftUI. Take your time to explore the exercises. It will help you master this important concept of SwiftUI.

Creating a New Project with SwiftUI enabled

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