IOS-Stocks application similar UI gesture

Question

Created Jun ’22

Replies 2

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Participants 2

Hello I am trying to create a graph screen similar to the IOS-Stocks application which is long-press tracking and touch scroll options. I am using Highcharts framework. Changing longPressView.options.tooltip.followTouchMove = true makes the graph trackable. And longPressView.options.tooltip.followTouchMove = false makes the graph scrollable.

let longPressRecognizer = UILongPressGestureRecognizer(target: self, action: #selector(longPressedTest))
longPressRecognizer.allowableMovement = 50
view.addGestureRecognizer(longPressRecognizer)

@objc func longPressedTest(sender: UILongPressGestureRecognizer) {
     
    let longPressView = sender.view as! HIChartView
     
    switch (sender.state) {
    case UILongPressGestureRecognizer.State.began:
      longPressView.options.tooltip.followTouchMove = true
      print("longpress began")
    case .ended:
      longPressView.options.tooltip.followTouchMove = false
      print("longpress ended")
    case .cancelled:
      longPressView.options.tooltip.followTouchMove = false
      print("longpress cancelled")
    case .failed:
      longPressView.options.tooltip.followTouchMove = false
      print("longpress ended")
    case .possible:
      longPressView.options.tooltip.followTouchMove = true
      print("longpress possible")
    case .changed:
      longPressView.options.tooltip.followTouchMove = true
      print("longpress changed")
    @unknown default:
      longPressView.options.tooltip.followTouchMove = false
      print("longpress default")
    }
     
  }

Am I using the UILongPressGesture wrong?

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Answer 1

MobileTen OP

Jun ’22

Adding Gestures to a 3rd party library can cause unexpected side effects if not supported by the very same 3rd party library. Consult the 3rd party site/Github project or documentation on what is and is not supported by their framework.

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Answer 2

BaagiiTMCN OP

Jun ’22

Thank you very much for your reply.

I am wondering what is behind IOS-Stocks application's UIgesture.

Any idea what it is made of?

0