Hi, I have a UISegmentedControl implemented programmatically that I would like to remove from the screen when I select collectionView didSelect. I've tried many solutions but couldn't get success. Any advice on that please ? Sharing the relevant code;
import Foundation
import UIKit
import Photos
class PhotoViewController: UIViewController, UIScrollViewDelegate {
func effectsSegmentedControl() {
let items = ["Brightness", "Contrast", "Saturation", "Noise"]
let segmentedControl = UISegmentedControl(items: items)
segmentedControl.addTarget(self, action: #selector(effectsDidChange(_:)), for: .valueChanged)
segmentedControl.translatesAutoresizingMaskIntoConstraints = false
view.addSubview(segmentedControl)
NSLayoutConstraint.activate([
segmentedControl.leadingAnchor.constraint(equalTo: view.leadingAnchor, constant: 30),
segmentedControl.trailingAnchor.constraint(equalTo: view.trailingAnchor, constant: -30),
segmentedControl.bottomAnchor.constraint(equalTo: resetConfirmCollectionView.topAnchor, constant: -10)])
}
@objc func effectsDidChange(_ segmentedControl: UISegmentedControl) {
switch segmentedControl.selectedSegmentIndex {
case 0:
effectsSliderBrightness()
case 1:
effectsSliderContrast()
// sliderLabel(myText: "")
case 2:
effectsSliderSaturation()
// sliderLabel(myText: "")
case 3:
effectsSliderNoise()
// sliderLabel(myText: "")
default:
break
}
}
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
if collectionView == resetConfirmCollectionView {
if indexPath.row == 0 {
// photoImageView.image = pickedImage
resetConfirmCollectionView.isHidden = true
menuStackView.isHidden = false
}
if indexPath.row == 1 {
// filteredImage = pickedImage
resetConfirmCollectionView.isHidden = true
menuStackView.isHidden = false
}
}
}I would move the var for UISegmented Control out of the func, so that it is globally visible and pesistent. Otherwise, view remains on screen but you've lost handle to it !
I would also get effectsDidChange out.
I do not see where you try to remove the segmented control. What did you try ?
There are a lot of missing information on your code, so I could only guess.
// Do not see where resetConfirmCollectionView is defined ? Does it contain segmentedControl ?
// There is no viewDidLoad ?
// Where is effectsSegmentedControl called ?
class PhotoViewController: UIViewController, UIScrollViewDelegate {
private var segmentedControl : UISegmentedControl! // Should be set in viewDidLoad
override func viewDidLoad() {
let items = ["Brightness", "Contrast", "Saturation", "Noise"]
// let
segmentedControl = UISegmentedControl(items: items)
}
@objc func effectsDidChange(_ segmentedControl: UISegmentedControl) {
switch segmentedControl.selectedSegmentIndex {
case 0:
effectsSliderBrightness()
case 1:
effectsSliderContrast()
// sliderLabel(myText: "")
case 2:
effectsSliderSaturation()
// sliderLabel(myText: "")
case 3:
effectsSliderNoise()
// sliderLabel(myText: "")
default:
break
}
}
func effectsSegmentedControl() {
// let items = ["Brightness", "Contrast", "Saturation", "Noise"]
// // let
// segmentedControl = UISegmentedControl(items: items)
segmentedControl.addTarget(self, action: #selector(effectsDidChange(_:)), for: .valueChanged)
segmentedControl.translatesAutoresizingMaskIntoConstraints = false
view.addSubview(segmentedControl)
NSLayoutConstraint.activate([
segmentedControl.leadingAnchor.constraint(equalTo: view.leadingAnchor, constant: 30),
segmentedControl.trailingAnchor.constraint(equalTo: view.trailingAnchor, constant: -30),
segmentedControl.bottomAnchor.constraint(equalTo: resetConfirmCollectionView.topAnchor, constant: -10)])
}
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
if collectionView == resetConfirmCollectionView {
if indexPath.row == 0 {
// photoImageView.image = pickedImage
resetConfirmCollectionView.isHidden = true
menuStackView.isHidden = false
}
if indexPath.row == 1 {
// filteredImage = pickedImage
resetConfirmCollectionView.isHidden = true
segmentedControl.isHidden = true
menuStackView.isHidden = false
}
}
}
}