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https://github.com/moritzsternemann/SwipyCell

Easy to use UITableViewCell implementing swiping to trigger actions.
https://github.com/moritzsternemann/SwipyCell

List: SwipyCell

awesome carthage cocoapods gesture ios mailbox swift swift-library swift-package swift-package-manager swiftpm swipe trigger uitableviewcell

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Easy to use UITableViewCell implementing swiping to trigger actions.

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SwipyCell

---------

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*Swipeable UITableViewCell inspired by the popular [Mailbox App](http://mailboxapp.com), implemented in [Swift](https://github.com/apple/swift).*






## Preview



### Exit Mode



The `.exit` mode is the original behavior, known from the Mailbox app.




### Toggle Mode



The `.toggle` is another behavior where the cell will bounce back after swiping it.




## Installation



### Swift Package Manager (recommended)

[Swift Package Manger](https://github.com/apple/swift-package-manager) is Apples first party tool for managing distribution of source code, aimed at making it easy to share your code and reuse others’ code.



To use the `SwipyCell` library in a SwiftPM project, add the following line to the dependencies in your `Package.swift` file:



```swift

.package(url: "https://github.com/moritzsternemann/SwipyCell", .upToNextMinor(from: "4.1.0")),

```



### CocoaPods

[CocoaPods](https://cocoapods.org) is a dependency manager for Cocoa projects.



To integrate SwipyCell into your project using CocoaPods, add it to your `Podfile`:

```

pod 'SwipyCell', '~> 4.1'

```



### Carthage

[Carthage](https://github.com/Carthage/Carthage) is a decentralized dependency manager that automates the process of adding frameworks to your Cocoa application.



To integrate SwipyCell into your project using Carthage, add it to your `Cartfile`:

```

github "moritzsternemann/SwipyCell" >= 4.1

```



## Usage

### Example

A complete example is available in the [Example](https://github.com/moritzsternemann/SwipyCell/tree/master/Example) directory.

The following code is a very basic example:

```swift

override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {

    let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as! SwipyCell

    cell.selectionStyle = .gray

    cell.contentView.backgroundColor = UIColor.white



    let checkView = viewWithImageName("check")

    let greenColor = UIColor(red: 85.0 / 255.0, green: 213.0 / 255.0, blue: 80.0 / 255.0, alpha: 1.0)



    let crossView = viewWithImageName("cross")

    let redColor = UIColor(red: 232.0 / 255.0, green: 61.0 / 255.0, blue: 14.0 / 255.0, alpha: 1.0)



    let clockView = viewWithImageName("clock")

    let yellowColor = UIColor(red: 254.0 / 255.0, green: 217.0 / 255.0, blue: 56.0 / 255.0, alpha: 1.0)



    let listView = viewWithImageName("list")

    let brownColor = UIColor(red: 206.0 / 255.0, green: 149.0 / 255.0, blue: 98.0 / 255.0, alpha: 1.0)



    cell.defaultColor = tableView.backgroundView?.backgroundColor

    cell.delegate = self



    cell.textLabel?.text = "Switch Mode Cell"

    cell.detailTextLabel?.text = "Swipe to switch"



    cell.addSwipeTrigger(forState: .state(0, .left), withMode: .toggle, swipeView: checkView, swipeColor: greenColor, completion: { cell, trigger, state, mode in

        print("Did swipe \"Checkmark\" cell")

    })



    cell.addSwipeTrigger(forState: .state(1, .left), withMode: .toggle, swipeView: crossView, swipeColor: redColor, completion: { cell, trigger, state, mode in

        print("Did swipe \"Cross\" cell")

    })



    cell.addSwipeTrigger(forState: .state(0, .right), withMode: .toggle, swipeView: clockView, swipeColor: yellowColor, completion: { cell, trigger, state, mode in

        print("Did swipe \"Clock\" cell")

    })



    cell.addSwipeTrigger(forState: .state(1, .right), withMode: .toggle, swipeView: listView, swipeColor: brownColor, completion: { cell, trigger, state, mode in

        print("Did swipe \"List\" cell")

    })



    return cell

}

```



### SwipyCellState

SwipyCellState represents a sliding state, for example the first state to the left of the cell.


The possible values are

 - `.none` - center position of the cell

 - `.state(index, side)` - *index* of the state from near to far and *side* of the state, each relative to the cell



### SwipyCellMode

SwipyCellMode as shown above.



### SwipyCellTriggerBlock

SwipyCellTriggerBlock is a typealias for

```

(SwipyCell, SwipyCellTrigger, SwipyCellState, SwipyCellMode) -> Void

```



### Add swipe triggers to cells

Adding swipe triggers to cells is easy using this method:

```swift

func addSwipeTrigger(forState: SwipyCellState, withMode: SwipyCellMode, swipeView: UIView, swipeColor: UIColor, completion: SwipyCellTriggerBlock)

```

- `forState` at which the trigger should activate

- `withMode` for the trigger

- `swipeView`: e.g. display an icon

- `swipeColor`: backgroundColor of the swipeView

- `completion`: called after the swipe gesture has ended, only if the trigger point was reached



### Delegate

SwipyCell provides three delegate methods in order to track the users behaviors.

```swift

// When the user starts swiping the cell this method is called

func swipyCellDidStartSwiping(_ cell: SwipyCell)



// When the user ends swiping the cell this method is called

func swipyCellDidFinishSwiping(_ cell: SwipyCell, atState state: SwipyCellState, triggerActivated activated: Bool)



// When the user is dragging, this method is called with the percentage from the border

func swipyCell(_ cell: SwipyCell, didSwipeWithPercentage percentage: CGFloat, currentState state: SwipyCellState, triggerActivated activated: Bool)

```



### Configuration

All configurable options are defined in the `SwipyCellConfig.shared` singleton object. Every new cell has these options set as defaults. To alter the defaults simply change the variables of the `SwipyCellConfig` singleton object.



#### Trigger Points

Trigger points are defined in the `triggerPoints` dictionary in either the configuration singleton or each cell individually.


Each key marks the swiping percentage for a trigger point; the corresponding value is an identifier to reference the trigger point later. A negative key marks a point on the right side of the cell (slide to the left), a positive key marks a point on the left side of the cell (slide to the right).


To modify the trigger points there are a couple of methods available on every cell as well as the configuration singleton:

```swift

// Set a new trigger point for the given state

func setTriggerPoint(forState state: SwipyCellState, at point: CGFloat)



// Set a new trigger point for the given index on BOTH sides of the cell

func setTriggerPoint(forIndex index: Int, at point: CGFloat)



// Overwrite all existing trigger points with the given new ones

func setTriggerPoints(_ points: [CGFloat: SwipyCellState])

// The Integer parameter is the index for BOTH sides of the cell

func setTriggerPoints(_ points: [CGFloat: Int])



// Overwrite all existing trigger points with new ones in order of the array on BOTH sides

func setTriggerPoints(points: [CGFloat])



// Get all existing trigger points

func getTriggerPoints() -> [CGFloat: SwipyCellState]



// Clear all existing trigger points

func clearTriggerPoints()

```

*Defaults: 25% and 75% on each side*



#### swipeViewPadding

```swift

var swipeViewPadding: CGFloat

```

swipeViewPadding is the padding between the swipe view and and the outer edge of the cell.



*Default: `24.0`*



#### shouldAnimateSwipeViews

```swift

var shouldAnimateSwipeViews: Bool

```

`shouldAnimateSwipeViews` sets if the swipeView should move with the cell while sliding or stay at the outer edge.



*Default: `true`*



#### defaultSwipeViewColor

```swift

var defaultSwipeViewColor: UIColor

```

`defaultSwipeViewColor` is the color of the swipe when the current state is `.none`.



*Default: `UIColor.white`*



### Resetting the cell position

You can animate the cell back to it's default position when using `.exit` mode using the `swipeToOrigin(_:)` method. This could be useful if your app asks the user for confirmation and the user want's to cancel the action.

```swift

cell.swipeToOrigin {

    print("Swiped back")

}

```



## Author

I'm [Moritz Sternemann](https://github.com/moritzsternemann), a computer-science student at [Technical University of Munich](https://www.tum.de/en/).

- Email: [[email protected]](mailto:[email protected])

- Twitter: [@strnmn](https://twitter.com/strnmn)

- LinkedIn: [/in/moritzsternemann](https://www.linkedin.com/in/moritzsternemann)



## License

SwipyCell is available under the MIT license. See LICENSE file for more info.