Скачать или смотреть How to Switch Custom Xib Cell in UITableView on Selection

Learn how to switch between custom Xib cells in a UITableView when selected, including adjusting cell height.
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This video is based on the question https://stackoverflow.com/q/67574220/ asked by the user '14079_Z' ( https://stackoverflow.com/u/10107897/ ) and on the answer https://stackoverflow.com/a/67574397/ provided by the user 'Shivani Bajaj' ( https://stackoverflow.com/u/8129394/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Switch Custom Xib Cell in UITableView on Selection

If you've been working with UITableView and custom Xib cells in Swift, you may face a common issue: how can you switch between two different custom cells when a user taps on one of them? Additionally, how do you ensure that the height of the cell adjusts accordingly? In this post, we'll dive deep into this problem and provide a clear, structured solution.

Understanding the Problem

When working with a table view containing two custom Xib cells, you might want to dynamically change between them based on user interaction. The challenge lies in switching the cells upon selection and managing the heights properly for each type of cell. This problem can often lead to confusion, especially when it comes to managing cell states and refreshing the UITableView.

Implementing the Solution

Step 1: Prepare Your Table View

In your UIViewController, start by preparing the table view in the viewDidLoad method. Here, you’ll register both custom cells.

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Step 2: Set Up the Data Model

To effectively manage which type of cell to display, you will need a way to track the state of each cell. You can use a Boolean variable (isContactView) to signify which cell is active.

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Step 3: Define the Height for Each Cell

In the heightForRowAt method, you need to define the height for each cell based on its type.

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Step 4: Configure the Cell Selection Logic

Now, let’s set up the didSelectRowAt method to handle the toggling between the two custom cells when the user selects one.

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Step 5: Load the Correct Cell Type

In the cellForRowAt method, you'll need to decide which cell to load based on the current value of isContactView.

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Handling Multiple Cells with a Data Model

If your table view consists of multiple cells, a more sophisticated approach using a data model might be necessary. You can create an array of items that store the state for each row.

Example Model

Say you have a model Item:

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Adjusting the Cell Configuration

Update your numberOfRowsInSection and cellForRowAt methods accordingly to utilize this model.

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Updating the State on Selection

When a user selects a cell, you would switch its view state like this:

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Conclusion

Switching between custom Xib cells in a UITableView can be straightforward if managed properly. By understanding your data model and correctly implementing selection logic, you can achieve a fluid user experience. Whether you stick with a single cell type flipping or manage multiple cells with a custom model, the core principles remain the same. Enjoy coding and enhancing your table views!