github.com/johnnycuongn/swipestrikethrough

SwipeStrikeThrough

About

A simple framework with strikethrough applications:

• Add strike through to your string,
• StrikeThroughLabel helps swiping to strike easier

How To Use

Add strikethrough to a string

var myLabel = "aaaaaa"

// Add strikethrough
var strikedLabel = myLabel.strikeThrough(.add)

// Remove strikethrough from attributedString
var unStrikedLabel = strikedLabel?.string.strikeThrough(.remove)

Add a label that can swiped to strike by user

// In ViewController
@IBOutlet weak var myLabel: StrikeThroughLabel!

That's all you have to do, by replace UILabel with StrikethroughLabel

→ Now when you swipe, the strikethough will follow

Notice ⚠️

Multiple Gestures

If you applied to mutiple gesture, make sure to conform to UIGestureRecognizerDelegate, with below function:

override func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldRecognizeSimultaneouslyWith otherGestureRecognizer: UIGestureRecognizer) -> Bool {
        return true
    }

Make sure to refer to: https://developer.apple.com/documentation/uikit/touches_presses_and_gestures/coordinating_multiple_gesture_recognizers

Drawbacks

StrikeThroughLabel use only PanGestureRecognizer, with panning right enable but not left enable.

Solutions

You can add another Pan Gesture, or change directly into framework code

Inside function handlePan(gesture:) :

xTranslation > 0: User start swiping from left to right (This is already for swipe to strike through)

xTranslation < 0 : User start swiping from right to left (Not yet handle)

Installation

Download clone and embeded into your project:

1. Download
2. Drag .xcodeproj into your source
3. Embed framework in General → Frameworks and Libraries