Скачать или смотреть How to Delete a TableView Cell from a Button Inside It in Swift

Learn how to effectively delete a TableView cell in Swift when a button inside that cell is tapped. This guide will walk you through organizing your data and implementing the delete functionality step-by-step.
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This video is based on the question https://stackoverflow.com/q/63514141/ asked by the user 'Johny Gargano' ( https://stackoverflow.com/u/13999263/ ) and on the answer https://stackoverflow.com/a/63514234/ provided by the user 'Shehata Gamal' ( https://stackoverflow.com/u/5820010/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Delete a TableView Cell from a Button Inside It in Swift

Managing TableViews in Swift can sometimes get tricky, especially when you want to perform actions like deleting a cell when a user taps on a button inside that cell. Getting this right requires understanding both TableView setup and handling button actions effectively. In this post, we'll explore how to set up a button in each TableView cell that, when tapped, will delete that specific cell from the display.

The Problem

You're building a TableView in Swift, and you want each cell to have a delete button. When a user taps the delete button in the cell containing, say, 2, that specific cell should disappear from the list. This might sound straightforward, but it's important to handle the data correctly and update the TableView so that it reflects these changes.

The Solution

To successfully delete a cell from a TableView on a button tap, we will follow these steps:

Use an Array for Data: Instead of a static number of rows, we will use an array to represent the data that fills the TableView.

Configure Cell for Deletion: In the cellForRowAt method, we will set the button's action so that it knows which cell to delete when tapped.

Handle the Deletion: We will create a function that will handle the delete action, update the data array, and refresh the TableView.

Step 1: Use an Array for Data

First, we'll replace our static variable numberOfRows with an array. This will allow us to easily manage the data we display in the TableView.

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Step 2: Configure Cell for Deletion

Next, we modify the tableView(_:cellForRowAt:) method. Here, we will set the label's text based on the array and prepare the delete button to respond to taps.

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Step 3: Handle the Deletion

Finally, we'll implement the method that gets called when the delete button is tapped. This method will remove the appropriate item from the array and update the TableView.

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Complete Code Example

Here’s how the entire code structure will look:

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Conclusion

By following these steps, you can easily manage the deletion of TableView cells using buttons located within those cells in Swift. This hands-on approach provides both flexibility and a smooth user experience as they interact with your application. Start implementing this in your projects, and you'll see how effective it can be!

Happy coding!