What is the difference between a push and a modal segue?

In iOS development, both push and modal segues are mechanisms used to transition between view controllers within an app’s navigation hierarchy. However, there are key differences between the two types of segues in terms of presentation style, navigation behavior, and context:

• Push Segue:

• • • A push segue is typically used to navigate forward within a navigation controller’s stack of view controllers.
    • It is commonly associated with hierarchical navigation patterns, such as drill-down navigation or master-detail interfaces.
    • When a view controller is pushed onto the navigation stack, it becomes part of the navigation hierarchy, and a back button is automatically added to the navigation bar for navigation back to the previous view controller.
    • Push segues are only available when using a navigation controller to manage the navigation stack. They are initiated programmatically or through Interface Builder by connecting a navigation controller to another view controller.

• Modal Segue:

• • A modal segue is used to present a view controller modally on top of the current view controller, overlaying the existing interface.
  • It is often used for presenting transient or temporary views, such as alert dialogs, action sheets, or forms.
  • When a view controller is presented modally, it appears in front of the presenting view controller, and the presenting view controller remains visible underneath.
  • Modal segues can be presented from any view controller and are not limited to navigation controller-based interfaces. They can be initiated programmatically or through Interface Builder by connecting a view controller to another view controller and specifying the presentation style as “modal.”

The main difference between a push and a modal segue lies in the presentation style and navigation behavior:

• Push Segue: Navigates forward within a navigation controller’s stack, typically associated with hierarchical navigation patterns.
• Modal Segue: Presents a view controller modally on top of the current view controller, often used for presenting transient views or gathering user input.

Understanding the differences between push and modal segues is essential for designing intuitive and effective navigation flows in iOS apps, ensuring that the presentation style aligns with the app’s user interface and user experience design.