Скачать или смотреть How to Solve the Objective-C Programmatic Title Not Showing Issue in Your iOS App

A comprehensive guide to fixing the issue of navigation titles not appearing in Objective-C when using a programmatic approach. Learn about setting up UINavigationBar in code!
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This video is based on the question https://stackoverflow.com/q/64403487/ asked by the user 'Jude Davis' ( https://stackoverflow.com/u/13090460/ ) and on the answer https://stackoverflow.com/a/64403906/ provided by the user 'Claudio Castro' ( https://stackoverflow.com/u/693319/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Understanding the Objective-C Programmatic Title Not Showing Problem

Have you ever encountered a situation where you’ve set a navigation title in your Objective-C app, but it just doesn’t show up? This can be incredibly frustrating, especially if you’re building your user interface programmatically. The issue often arises due to an incomplete setup of the navigation bar when not using storyboards.

In this guide, we’ll explore the reasons behind this problem and provide you with a clear, step-by-step solution to ensure that your navigation title displays correctly in your iOS app.

The Background: Your Current Code Setup

In your current implementation, you have defined the navigation title in ViewController.m as follows:

[[See Video to Reveal this Text or Code Snippet]]

However, this snippet works seamlessly only if you have a navigation controller managed through a storyboard. Since you are setting things up programmatically in AppDelegate.m, the title is not appearing as expected.

The Core of the Issue

When you create a navigation controller programmatically, it's essential to properly initialize and display a UINavigationBar. If you do not explicitly create a navigation bar and add it to your view, the title set with self.navigationItem.title will not be visible.

Step-by-Step Solution

Let’s break down the solution into clear sections so you can easily implement the fix:

Step 1: Create a UINavigationBar

In order to display your title, you need to explicitly instantiate a UINavigationBar within your ViewController. Here's how to do it:

In your ViewController.m, modify the viewDidLoad method.

Update the method to create a UINavigationBar object and set the navigation item with the desired title. Here's the code you would use:

[[See Video to Reveal this Text or Code Snippet]]

Step 2: Confirm the Setup in AppDelegate

Make sure your AppDelegate.m code is correct and that you are initializing your ViewController properly within a UINavigationController. The code you provided looks good, but here it is for reference:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

By following these steps, you should now see your navigation title displayed when you run your app. If you were previously using a storyboard, the one-liner command self.navigationItem.title = @ "Hello"; would have worked perfectly. However, programmatically creating your UI requires a manual setup of all components, including the navigation bar.

If you run into any further issues, or if you want to discuss additional ways to enhance your Objective-C projects, feel free to reach out or leave a comment below!

Happy coding!