Whats the difference between all the Selection Segues

Navigating the world of iOS development often involves connecting different parts of your app, creating a seamless user experience. A crucial element in achieving this is understanding and utilizing selection segues. But with several options available, choosing the right segue for the right situation can be confusing. This post will clarify the differences between selection segues, empowering you to build more intuitive and responsive iOS applications. We’ll explore each type, highlighting their unique characteristics and use cases, so you can confidently choose the best tool for the job.

Show

The Show segue is perhaps the most common and straightforward. It presents the next view controller in a way that’s appropriate for the current context. For example, in a navigation controller hierarchy, it pushes the new view controller onto the navigation stack. In a split view controller, it might replace the detail view. This adaptability makes the Show segue a versatile choice for many scenarios.

This segue automatically handles the transition animation, providing a smooth user experience without requiring custom code. Furthermore, the Show segue simplifies navigation management, particularly within hierarchical structures like navigation or tab bar controllers. This allows you to focus on building app logic rather than managing transitions.

Show Detail

The Show Detail segue, similar to Show, presents a new view controller. However, it’s specifically designed for master-detail interfaces. In a split view controller, Show Detail typically replaces the detail view. On an iPhone, it presents the new view controller modally, often in a full-screen presentation style.

This distinction is crucial for adapting to different screen sizes and device orientations. The Show Detail segue ensures the user experience remains consistent across devices, providing the appropriate presentation style based on the available screen real estate.

Choosing between Show and Show Detail often depends on your app’s architecture and whether you’re working with a master-detail interface. If you are, Show Detail is usually the preferred choice for presenting detailed information related to a selected item in the master view.

Present Modally

The Present Modally segue displays a view controller on top of the current view hierarchy. This creates a clear visual distinction, often used for tasks that require focused user interaction, such as presenting a form, an alert, or a configuration screen.

Several presentation styles are available with Present Modally, giving you fine-grained control over the appearance and behavior of the presented view controller. Options include full screen, page sheet, form sheet, and over full screen. This flexibility allows you to tailor the presentation to match the specific task and desired user experience.

Unlike Show and Show Detail, a modally presented view controller requires explicit dismissal. This is typically handled by a button press, ensuring the user completes the intended action before returning to the underlying view.

Present as Popover

Presenting a view controller as a popover is a specialized form of modal presentation. It’s designed specifically for iPad and larger screens, displaying a smaller, floating view anchored to a specific element in the user interface. This is ideal for displaying contextual information or allowing users to make quick edits without leaving the current context.

Popovers are less common on iPhones due to limited screen space. However, you can still use them, and the system will adapt the presentation style to be more suitable for smaller screens. Typically, this involves presenting the popover as a modal view, maintaining usability while adapting to different device characteristics.

For providing contextual information or allowing quick interactions related to a specific UI element, the popover presentation style offers a refined user experience, especially on larger screens.

Custom

The Custom segue allows for complete control over the transition between view controllers. While the other segues offer pre-defined animations and behaviors, a custom segue lets you implement unique transitions, animations, and interaction logic.

Creating a custom segue involves subclassing UIStoryboardSegue and overriding the perform method. This method is where you define the animation and transition logic, giving you complete freedom to create innovative and engaging transitions. This can significantly enhance your app’s visual appeal and create a distinct brand identity.

While custom segues offer maximum flexibility, they also require more development effort. Carefully consider whether a custom segue is necessary, as the standard segues often provide sufficient functionality for common transition scenarios.

• Understanding the nuances of each segue type is crucial for creating a smooth and intuitive user experience.
• Consider the context of your app and the specific task when choosing a segue.

1. Identify the relationship between the view controllers you want to connect.
2. Choose the segue that best matches the desired presentation and interaction style.
3. Implement any necessary logic to manage the transition and data transfer between view controllers.

Apple’s documentation provides further insights into segues and view controller transitions: Using Segues.

Also, check out this helpful tutorial on Storyboards for more in-depth information on working with storyboards and segues.

Learn more about Navigation and Segues.“Effective use of segues can greatly enhance the user experience, making navigation within your app feel natural and intuitive.” - Expert iOS Developer

Frequently Asked Questions (FAQs)

Q: What’s the difference between Show and Show Detail?

A: Both present new view controllers, but Show Detail is specifically designed for master-detail interfaces, adapting its presentation style based on the device and available screen space.

Q: When should I use a custom segue?

A: Use a custom segue when you need to implement unique transitions and animations that are not possible with the standard segue types.

By understanding the distinct characteristics and use cases of each selection segue, you can create more responsive, user-friendly, and engaging iOS applications. Choosing the correct segue for each transition is a key aspect of building a polished and intuitive user experience. Explore the different options, experiment with their behavior, and leverage their power to elevate your app development skills. A deeper understanding of selection segues empowers you to craft seamless navigation flows and create a more enjoyable user journey. Dive into your next project equipped with this knowledge and transform your app’s navigation. Consider exploring advanced topics like custom transitions and interactive animations to further refine your app’s user experience.

Check out our guide on iOS navigation best practices for more tips on creating seamless transitions within your app.

Question & Answer :

• Show
• Show Detail
• Present Modally
• Popover presentation
• Custom

What is the difference between them? I couldn’t find any documentation on it. There used to be some which I found in a Google search, but it’s now gone: https://developer.apple.com/library/ios/recipes/xcode_help-interface_builder/articles-storyboard/StoryboardSegue.html

Here is a quick summary of the segues and an example for each type.

Show - Pushes the destination view controller onto the navigation stack, sliding overtop from right to left, providing a back button to return - if not embedded in a navigation controller it will be presented modally
Example: Navigating in Settings, for example tapping General > About

Show Detail - For use in a split view controller, replaces the secondary view controller when in a multi-column interface, or if collapsed to one column it will push in the navigation controller
Example: In Messages, tapping a conversation will show the conversation details - replacing the view controller on the right when in a two column layout, or push the conversation when in a single column layout

Present Modally - Presents a view controller overtop the current view controller in various fashions as defined by the modal presentation and transition style - most commonly used to present a view controller in a sheet that animates up from the bottom
Example: Selecting Face ID & Passcode in Settings

Popover Presentation - When run on iPad, the destination appears in a popover, and tapping anywhere outside will dismiss it - popovers are supported on iPhone as well but by default it will present the view controller modally
Example: Tapping the + button in Calendar

Custom - You may implement your own custom segue and have control over its behavior

Embed - You may embed a view controller into another view controller, such as navigation, tab bar, and split view controllers as well as custom containers

Unwind - You may use an unwind segue to navigate back to a previous view controller, even if there’s many screens pushed/presented on top all of them will be dismissed

The deprecated segues are essentially the non-adaptive equivalents of those described above. These segue types were deprecated in iOS 8: Push, Modal, Popover, Replace.

For more info, you may read over the Using Segues documentation which also explains the types of segues and how to use them in a Storyboard. Also check out Session 216 Building Adaptive Apps with UIKit from WWDC 2014. They talked about how you can build adaptive apps using these new Adaptive Segues, and they built a demo project that utilizes these segues.