How do I add a header in collectionView?

How do I add a header in collectionView?

Designing Section Header/Footer in Storyboard First, download the header/footer background images and add them into the Xcode project. Go back to Storyboard. Select “Collection View” of the Collection View controller. In Attributes inspector, select both “Section Header” and “Section Footer” for Accessories.

How do I create a collectionView header in Swift?

Displaying the Custom Header In order to display the custom header, we must first set the collection view layout header mode to . supplementary . After that, create a supplementary registration object using the InteractiveHeader class and make sure to set its element kind to UICollectionView.

How do I add a section title in UICollectionView?

4 Answers

  1. Add a new file of type UICollectionReusableView.
  2. In the storyboard change the class of section header in UICollectionViewCell to the newly added file of type UICollectionReusableView.
  3. Add a label in section header of UICollectionViewCell in storyboard.

What is viewForSupplementaryElementOfKind?

collectionView(_:viewForSupplementaryElementOfKind:at:) Asks your data source object to provide a supplementary view to display in the collection view. Availability. Declaration. Parameters. Return Value.

How do I hide Collectionview headers?

Alternatively, you can hide views by setting the hidden property of the corresponding attributes to YES or set the alpha property of the attributes to 0. To hide header and footer views in a flow layout, you can also set the width and height of those views to 0.

What is UICollectionReusableView?

A view that defines the behavior for all cells and supplementary views presented by a collection view.

How do I use UICollectionReusableView?

The app currently displays a new section for each search performed. You’ll add a new section header, using the search text as the section title. To display this section header, you’ll use UICollectionReusableView . This class is similar to UICollectionViewCell , except it usually displays headers and footers.

How do I set collection view layout?

Open the Storyboard, select the collection view in the attributes inspector change the layout from flow to custom. Below the layout field a new field will appear where you can set the class. Type the name of our subclass.

What is compositional layout?

Compositional layouts are a declarative kind of API that allows us to build large layouts by stitching together smaller layout groups. Compositional layouts have a hierarchy that consists of Item, Group, Sections, and Layout. Sections eventually compose the compositional layouts.

What is compositional layout Swift?

The compositional layout is made up of four basic building blocks, and it’s a hierarchy that consists of: Item. Group. Section. Layout.

What is Diffable data source?

A diffable data source object is a specialized type of data source that works together with your table view object. It provides the behavior you need to manage updates to your table view’s data and UI in a simple, efficient way. Generate the current state of the data.

What is Uicollectionviewflowlayout?

A flow layout is a type of collection view layout. Items in the collection view flow from one row or column (depending on the scrolling direction) to the next, with each row containing as many cells as will fit. Cells can be the same sizes or different sizes.

What is systemLayoutSizeFitting?

ios autolayout. Based on Apple’s doc, systemLayoutSizeFitting is supposed to respect current constraints on the UIView element when returning the optimal size.

What is UIEdgeInsets?

UIEdgeInsets encapsulates four different CGFloat values for the inset values of the top, left, bottom, and right (respectively) individually. Positive inset values shrink the content area, while negative inset values will effectively increase it.

What is the meaning of Diffable?

differently abled

What is flow layout in Swift?

A flow layout is a type of collection view layout. A flow layout works with the collection view’s delegate object to determine the size of items, headers, and footers in each section and grid. That delegate object must conform to the UICollectionViewDelegateFlowLayout protocol.

What is the use of UICollectionViewDelegateFlowLayout?

The methods that let you coordinate with a flow layout object to implement a grid-based layout.

How do I set CollectionView flow layout delegate?

Just self. collectionView. delegate = self; . Note that UICollectionViewDelegateFlowLayout inherits from UICollectionViewDelegate .

How do I set collection view flow layout delegate?

Collection View Setup

  1. Step 1: Determine what data to display in the collection view.
  2. Step 2: Add collection view to view controller.
  3. Step 3: Create custom class for prototype cell.
  4. Step 4: Configure prototype cell.
  5. Step 5: Set prototype cell’s reuse identifier.
  6. Step 6: Set the collection view’s data source.
  7. Flow Layout.

How do I create a collection view?

Creating Custom UICollectionViewCells One of the best things about UICollectionView is, like table views, it’s easy to set up collection views in the Storyboard editor visually. You can drag and drop collection views into your view controller and design your cell’s layout from within the Storyboard editor.

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