What is Indexpath in Swift?

SwipeAction in TableView – Swift 4

There is also a method called setupView that sets up the UI elements of the view and a method called applyAutoConstraints that activates the constraints for those UI elements.

Now that we’ve reviewed the actual code for the main view controller, let’s build that table view. If you want to take a look at the other code provided in the project, take your time and get a feel for how it all works together.

The cells are still basic white rectangles, even though the RestaurantReviewCell has its layer.cornerRadius set to 20. This is because the background color of the table view is white.RELATED POST: How to use Protobuf with Apache Kafka and Schema Registry.

To fix this, we need to remove the background color of the table view, which is currently white. Remove the background from the table view by setting the backgroundColor property of the table view to .clear.

Protocols and Delegates in Swift 3+

This is because within the view hierarchy, a tableView has cells as subviews that subsequently have their own ‘content views’, so you must get the superview of this content view to get the cell itself. As a result, if your button is contained in a subview rather than directly in the cell’s content view, you will have to drill down many layers to access it.

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The above is one such approach, but not necessarily the best. While functional, it assumes details about a UITableViewCellthat Apple has never necessarily documented, such as its view hierarchy. This could be changed in the future and, as a result, the above code could behave unpredictably.

As a result of the above, for longevity and reliability reasons, I recommend taking another approach. There are many alternatives listed in this thread, and I encourage you to read, but my personal favorite is the following:

By moving your controller code here, you can leverage the indexPathargument already present . This is a much safer approach than the one mentioned above, as it does not rely on undocumented traits.

Create UITableView with Custom Cells and configure it – 16/x

If we want to develop an application that allows sharing and synchronizing data or files between different devices, we will need to use a backend service that allows us to perform these tasks. In the case of devices with iOS, or macOS, we can use CloudKit. In this article we are going to see how to develop a task application with CloudKit.

CloudKit is Apple’s storage service that allows its applications to store data and files remotely. Apple introduced CloudKit at WWDC 2014 as a new library that allowed it to communicate with iCloud servers.

To start working with CloudKit we have to keep in mind that, in the same way that each application has its own sandbox, similarly each application has a container in iCloud (if we have registered the application for it, as we will see later). Three types of databases are defined in CloudKit:

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Each user of an app (if the app has been registered to use iCloud) has a private database in an iCloud container, as long as the user is logged into their iCloud account. Since it is private, developers cannot access the data stored in this database.

CollectionCell with Custom Cell – SWIFT 4

Now we move on to configure the table, and to do so we must start overloading (overwriting) functions that are part of the delegation. In this case, we are going to overload the numberOfSections function, although it is not necessary to do so at first.

The sections start with 0, so the first one is always 0, the next one 1, etc. Now we see that the data in our table, when the data is duplicated, only goes up to Row Three. But we still don’t return the data we’re interested in, so now we’re going to change that by making use of the indexPath data that we have in the overridden function cellForRowAt.

What we’ve done is simple. First of all, we have removed the assignment we had from the label text property and changed it to a switch. This, in case the section is 0 (the first one) retrieves the data from the array data and in case it is section 1, it retrieves it from data2. The crux of the matter here is that we have used row instead of item, so for section 0 we will have elements that start from 0, for section 1 that start from 0, and so on. This is the way to access the data when there is more than one section: by the row property. Otherwise item will serve us, as it has happened in the previous case of a single section. Tuning As we are using more than one section, we can overload another function more tableView. In this case the one that uses the external parameter titleForHeaderInSection. Its function is to return a string that will name the section we create.