Скачать или смотреть How to Fix the border color is not changed Issue in UIButton on iOS

Discover how to synchronize border color and title color for UIButton in iOS. Learn effective coding practices to resolve border color issues.
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This video is based on the question https://stackoverflow.com/q/64870052/ asked by the user 'qqpqp' ( https://stackoverflow.com/u/10948465/ ) and on the answer https://stackoverflow.com/a/64870479/ provided by the user 'Surjeet Singh' ( https://stackoverflow.com/u/2331777/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Introduction

Have you ever faced a situation where you wanted to change the border color of a UIButton in iOS, but nothing seemed to work? You’re not alone! Many developers encounter this problem and struggle to synchronize the border color with the title color while managing the button's state. In this guide, we'll examine the common issue of border color not updating with the button's selected state and provide a clear, step-by-step solution.

Problem Explanation

When working with UIButton in Swift, you might find that changing the border color does not reflect as expected when the button is selected. This happens because borderColor does not automatically change with the UIButton's selectedState. In order to achieve the desired visual feedback, you will need to manage the state changes manually.

Solution

To rectify the border color issue and maintain synchronization with the title color, we will break down the solution into a few clear steps.

1. Define the Update Function

First, create a function called updateSelectedState() that will manage the button's appearance based on its selected state. Here’s how this function will look:

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

Explanation:

The borderWidth will be set to 1 if the button is selected, otherwise, it will be 0 (hiding the border when not selected).

The borderColor will change to a specified color (UIColor.fromRGB(95, 61, 196)) when the button is selected and revert to white when it's not.

2. Update Handlers to Use New Function

Next, you should modify your existing button handling functions to utilize this new method. Here’s how your functions will look after integration:

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

Explanation:

In handleCleaningKinds, you first deselect all buttons and then update the selected button's state using updateSelectedState(sender).

The deselectAllButtons function will go through all buttons in the stackView and reset them to a non-selected state.

3. Initialize Button Colors

To avoid calling the setColor(button:) function every time a button is clicked, consider setting the initial colors for your buttons when they are created. You can do this in the viewDidLoad or any other initialization function.

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

Conclusion

By following these steps, you can effectively handle synchronization between the button's border color and title color in iOS development. Remember that managing UI components based on their states is crucial for providing a smooth user experience. This solution not only fixes the border color issue but also enhances the overall aesthetics of your buttons.

Implementing these updates will ensure that your buttons visually represent their states accurately, providing better feedback to your users. Enjoy coding!