nicolasgomollon / PTATableViewCell

Convenient UITableViewCell subclass that supports pan gestures to trigger actions (as seen in apps such as Clear, Mailbox, Tweetbot, and more).

PTATableViewCell

PTATableViewCell (PTA is short for “Pan to Trigger Action”) is a convenient UITableViewCell subclass that supports pan gestures to trigger actions (as seen in apps such as Clear, Mailbox, Tweetbot, and more). PTATableViewCell is written completely in Swift (adapted from Objective-C, original code by: alikaragoz/MCSwipeTableViewCell).

Usage

Here’s an example usage, with various attributes modified to show a few of the cell’s properties.

override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
	let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath) as! PTATableViewCell
	
	cell.textLabel.text = objects[indexPath.row]
	
	
	cell.delegate = self
	
	cell.setPanGesture(.leftToRight, mode: .switch, trigger: PTATableViewItemTrigger(kind: .offset, value: 64.0), color: view.tintColor, view: viewWithImage(named: "check"))
	cell.leftToRightAttr.viewBehavior = .dragWithPanThenStick
	
	let redColor = UIColor(red: 232.0/255.0, green: 61.0/255.0, blue: 14.0/255.0, alpha: 1.0)
	cell.setPanGesture(.rightToLeft, mode: .exit, color: redColor, view: viewWithImage(named: "cross"))
	
	cell.rightToLeftAttr.trigger.value = 0.4
	cell.rightToLeftAttr.rubberbandBounce = false
	cell.rightToLeftAttr.viewBehavior = .dragWithPan
	
	
	return cell
}

It’s important that you implement the following delegate method to perform an action when the cell’s state is triggered:

func tableView(cell: PTATableViewCell, didTrigger state: PTATableViewItemState, with mode: PTATableViewItemMode) {
	guard let indexPath = tableView.indexPath(for: cell) else { return }
	switch mode {
	case .switch:
		print("row \(indexPath.row)'s switch was triggered")
		// Do something interesting here.
	case .exit:
		print("row \(indexPath.row)'s exit was triggered")
		// Do something interesting here.
		objects.remove(at: indexPath.row)
		tableView.deleteRows(at: [indexPath], with: .fade)
	default:
		break
	}
}

There are also a few optional delegate methods you may implement:

// Asks the delegate whether a given cell should be swiped. Defaults to `true` if not implemented.
func tableViewShouldSwipe(cell: PTATableViewCell) -> Bool

// Tells the delegate that the specified cell is being swiped with the offset and percentage.
func tableViewIsSwiping(cell: PTATableViewCell, with offset: CGFloat, percentage: Double)

// Tells the delegate that the specified cell started swiping.
func tableViewDidStartSwiping(cell: PTATableViewCell)

// Tells the delegate that the specified cell ended swiping.
func tableViewDidEndSwiping(cell: PTATableViewCell)

See the ActionTest demo project included in this repository for a working example of the project, including the code above.

Requirements

Since PTATableViewCell is written in Swift 3, it requires Xcode 8 or above and works on iOS 8 and above.

License

PTATableViewCell is released under the MIT License.