SwipeCellKit

Swipeable UITableViewCell/UICollectionViewCell based on the stock Mail.app, implemented in Swift.

About

A swipeable UITableViewCell or UICollectionViewCell with support for:

Left and right swipe actions
Action buttons with: text only, text + image, image only
Haptic Feedback
Customizable transitions: Border, Drag, and Reveal
Customizable action button behavior during swipe
Animated expansion when dragging past threshold
Customizable expansion animations
Support for both UITableView and UICollectionView
Accessibility

Background

Check out my blog post on how SwipeCellKit came to be.

Demo

Transition Styles

The transition style describes how the action buttons are exposed during the swipe.

Border

Drag

Reveal

Customized

Expansion Styles

The expansion style describes the behavior when the cell is swiped past a defined threshold.

None

Selection

Destructive

Customized

Requirements

Swift 4.2
Xcode 10+
iOS 9.0+

Installation

CocoaPods (recommended)

use_frameworks!

# Latest release in CocoaPods
pod 'SwipeCellKit'

# Get the latest on develop
pod 'SwipeCellKit', :git => 'https://github.com/SwipeCellKit/SwipeCellKit.git', :branch => 'develop'

# If you have NOT upgraded to Swift 4.2, use the last non-swift 4.2 compatible release
pod 'SwipeCellKit', '2.4.3'

Carthage

github "SwipeCellKit/SwipeCellKit"

Documentation

Read the docs. Generated with jazzy. Hosted by GitHub Pages.

Usage for UITableView

Set the delegate property on SwipeTableViewCell:

override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCell(withIdentifier: "Cell") as! SwipeTableViewCell
    cell.delegate = self
    return cell
}

Adopt the SwipeTableViewCellDelegate protocol:

func tableView(_ tableView: UITableView, editActionsForRowAt indexPath: IndexPath, for orientation: SwipeActionsOrientation) -> [SwipeAction]? {
    guard orientation == .right else { return nil }

    let deleteAction = SwipeAction(style: .destructive, title: "Delete") { action, indexPath in
        // handle action by updating model with deletion
    }

    // customize the action appearance
    deleteAction.image = UIImage(named: "delete")

    return [deleteAction]
}

Optionally, you can implement the editActionsOptionsForRowAt method to customize the behavior of the swipe actions:

func tableView(_ tableView: UITableView, editActionsOptionsForRowAt indexPath: IndexPath, for orientation: SwipeActionsOrientation) -> SwipeOptions {
    var options = SwipeOptions()
    options.expansionStyle = .destructive
    options.transitionStyle = .border
    return options
}

Usage for UICollectionView

Set the delegate property on SwipeCollectionViewCell:

override func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
    let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "Cell", for: indexPath) as! SwipeCollectionViewCell
    cell.delegate = self
    return cell
}

Adopt the SwipeCollectionViewCellDelegate protocol:

func collectionView(_ collectionView: UICollectionView, editActionsForItemAt indexPath: IndexPath, for orientation: SwipeActionsOrientation) -> [SwipeAction]? {
    guard orientation == .right else { return nil }

    let deleteAction = SwipeAction(style: .destructive, title: "Delete") { action, indexPath in
        // handle action by updating model with deletion
    }

    // customize the action appearance
    deleteAction.image = UIImage(named: "delete")

    return [deleteAction]
}

Optionally, you can implement the editActionsOptionsForItemAt method to customize the behavior of the swipe actions:

func collectionView(_ collectionView: UICollectionView, editActionsOptionsForItemAt indexPath: IndexPath, for orientation: SwipeActionsOrientation) -> SwipeOptions {
    var options = SwipeOptions()
    options.expansionStyle = .destructive
    options.transitionStyle = .border
    return options
}

Transitions

Three built-in transition styles are provided by SwipeTransitionStyle:

.border: The visible action area is equally divide between all action buttons.
.drag: The visible action area is dragged, pinned to the cell, with each action button fully sized as it is exposed.
.reveal: The visible action area sits behind the cell, pinned to the edge of the table view, and is revealed as the cell is dragged aside.

See Customizing Transitions for more details on customizing button appearance as the swipe is performed.

Transition Delegate

Transition for a SwipeAction can be observered by setting a SwipeActionTransitioning on the transitionDelegate property. This allows you to observe what percentage is visible and access to the underlying UIButton for that SwipeAction.

Expansion

Four built-in expansion styles are provided by SwipeExpansionStyle:

.selection
.destructive (like Mail.app)
.destructiveAfterFill (like Mailbox/Tweetbot)
.fill

Much effort has gone into making SwipeExpansionStyle extremely customizable. If these built-in styles do not meet your needs, see Customizing Expansion for more details on creating custom styles.

The built-in .fill expansion style requires manual action fulfillment. This means your action handler must call SwipeAction.fulfill(style:) at some point during or after invocation to resolve the fill expansion. The supplied ExpansionFulfillmentStyle allows you to delete or reset the cell at some later point (possibly after further user interaction).

The built-in .destructive, and .destructiveAfterFill expansion styles are configured to automatically perform row deletion when the action handler is invoked (automatic fulfillment). Your deletion behavior may require coordination with other row animations (eg. inside beginUpdates and endUpdates). In this case, you can easily create a custom SwipeExpansionStyle which requires manual fulfillment to trigger deletion:

var options = SwipeTableOptions()
options.expansionStyle = .destructive(automaticallyDelete: false)

NOTE: You must call SwipeAction.fulfill(with style:) at some point while/after your action handler is invoked to trigger deletion. Do not call deleteRows directly.

let delete = SwipeAction(style: .destructive, title: nil) { action, indexPath in
    // Update model
    self.emails.remove(at: indexPath.row)
    action.fulfill(with: .delete)
}

Advanced

See the Advanced Guide for more details on customization.

Credits

Maintained by @mkurabi.

Showcase

We're interested in knowing who's using SwipeCellKit in their app. Please submit a pull request to add your app!

License

SwipeCellKit is released under an MIT License. See LICENSE for details.

Please provide attribution, it is greatly appreciated.

License

foxware00/SwipeCellKit

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