How to Set the UIFont Family and Name with Display Font on UITableView скачать в хорошем качестве

How to Set the UIFont Family and Name with Display Font on UITableView

Discover how to effectively display the font family and names in a UITableView using Swift. Fix crashes in your app and enhance user experience! --- This video is based on the question https://stackoverflow.com/q/64235534/ asked by the user 'Antonio A. Chavez' ( https://stackoverflow.com/u/11639651/ ) and on the answer https://stackoverflow.com/a/64235871/ provided by the user 'Razib Mollick' ( https://stackoverflow.com/u/3413418/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions. Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: how to set the UIFont family and name with display font on the UITableView? Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l... The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license. If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com. --- Mastering Fonts Display in UITableView with Swift Handling fonts in your iOS application can be challenging, especially when you're aiming to display font families and names in a UITableView. If you're working with UIFont in Swift, you might encounter crashes or unexpected behaviors. In this guide, we’ll walk through a common issue faced when trying to set display fonts in UITableView cells, analyze the solution, and ensure your app runs smoothly without crashes. The Problem: Crashing UITableView You may have tried executing code to list out all font families and their respective font names on the left side of a UITableView. However, running the code resulted in an application crash, making it unusable. This is often due to incorrect data handling - let’s take a closer look at what you encountered: Your Attempted Code [[See Video to Reveal this Text or Code Snippet]] In your cellForRowAt method, you used a loop to assign font names which led to an incorrect implementation. Why It Crashed Every time a row is created, the loop runs through all font families. This means you were unnecessarily loading and displaying data multiple times, which not only cluttered your cells but also led to crashes because you were trying to access cells that haven't been properly initialized or returned as nil. The Solution: Correct Implementation To resolve this, we need to optimize the way data is handled for each UITableView cell. Here's how to fix the crashing issue: Step-by-Step Solution Use the names array to fetch the family name based on the index path. Get the font names for that specific family. Assign values directly to the cell labels. Here’s the improved code: [[See Video to Reveal this Text or Code Snippet]] Key Changes Made: Removed the loop: Instead of looping over all families, we directly accessed the font family using names[indexPath.row]. Properly Assigned the Labels: The title and detail labels are now correctly assigned based on the respective family and its names. Additional Tips Always Check for Optionals: When dequeueing cells, it’s a good practice to safely unwrap optionals to avoid crashes; you can use guard statements if necessary. Monitor for Performance: If working with a larger number of fonts, consider optimizing further, for instance by caching font names. Conclusion In this guide, we've tackled the common issue of crashing when setting font information in a UITableView. By streamlining the retrieval of font data and ensuring we operate on the right instances, you can create a user-friendly interface that showcases the diverse fonts available in iOS. Remember, being careful with optionals and data handling is key to maintaining a stable app experience. Happy Coding!