logo
down
shadow

Does iOS/UIKit have built in support for scheduling scroll like dinging


Does iOS/UIKit have built in support for scheduling scroll like dinging

By : Hardik
Date : October 19 2020, 08:10 AM
help you fix your problem I think you are on the right way. You can use use timers to repeat some actions, but you should add the created timer into a run loop with a common mode, without this mode, the run loop will not call the timer's action while a user is touching the screen
code :
let timer = Timer(timerInterval: interval, repeats: true, block: block) 
RunLoop.current.add(timer, forMode: . common)
let link = CADisplayLink(target: self, selector: #selector(updateAction(sender:)));
link.add(to: RunLoop.main, forMode: .commonModes);


Share : facebook icon twitter icon
Is there a base/utility class in UIKit with event handling built in?

Is there a base/utility class in UIKit with event handling built in?


By : user4858259
Date : March 29 2020, 07:55 AM
it should still fix some issue UIButton is a subclass of UIControl. UIControl manages the target/action list for each control event. It has a predefined set of control events, like UIControlEventTouchUpInside and UIControlEventValueChanged. Each control event is represented by a bit in a mask. The bitmask has four bits reserved for app-defined events (UIControlEventApplicationReserved = 0x0F000000).
If UIControl doesn't do what you want, you'll need to roll your own event management.
How has Facebook built this fixed-on-scroll box with iOS support?

How has Facebook built this fixed-on-scroll box with iOS support?


By : Mark Petrie
Date : March 29 2020, 07:55 AM
wish of those help Apparantly it uses the webkit function position: -webkit-sticky;
Explanation is found here.
Does swift playground support UIKit?

Does swift playground support UIKit?


By : Fossy
Date : March 29 2020, 07:55 AM
it helps some times I tried to create a UILabel in playground but failed. Does playground only support OS X development for now? , YES, it does!
File: New > File... > iOS > Source > Playground
code :
import UIKit
let lbl = UILabel(frame: CGRectMake(0, 0, 300, 100))
lbl.text = "Hello StackOverflow!"
Stacking UIkit.modal built-in dialogs

Stacking UIkit.modal built-in dialogs


By : Peter Kamali
Date : March 29 2020, 07:55 AM
I hope this helps you . Seems to have found a solution: https://codepen.io/zorgoz/pen/pOZRyP
UIkit.modal.confirm('My message!', {stack: true,...}) seem to work.
UIKit - Swift - Allow tableHeaderView to scroll up, but not down

UIKit - Swift - Allow tableHeaderView to scroll up, but not down


By : Stefan
Date : March 29 2020, 07:55 AM
hope this fix your issue You can try creating a view and placing it behind the tableView, as the table view scrolls, the height of the view is updated.
code :
import UIKit

class ViewController: UIViewController, UITableViewDataSource, UITableViewDelegate {

    lazy var tableView : UITableView = {
        let tableView = UITableView(frame: .zero, style: .plain)
        tableView.dataSource = self
        tableView.delegate = self
        return tableView
    }()

    let backView : UIView = {
        let view = UIView()
        view.backgroundColor = .red
        return view
    }()

    var backViewHeight : NSLayoutConstraint?

    override func viewDidLoad() {
        super.viewDidLoad()

        self.title = "ViewController"

        self.view.addSubview(backView)
        backView.translatesAutoresizingMaskIntoConstraints = false
        backView.topAnchor.constraint(equalTo: self.view.safeAreaLayoutGuide.topAnchor).isActive = true
        backView.leadingAnchor.constraint(equalTo: self.view.leadingAnchor).isActive = true
        backView.trailingAnchor.constraint(equalTo: self.view.trailingAnchor).isActive = true
        backViewHeight = backView.heightAnchor.constraint(equalToConstant: 0)
        backViewHeight?.isActive = true

        self.view.addSubview(tableView)
        tableView.translatesAutoresizingMaskIntoConstraints = false
        tableView.topAnchor.constraint(equalTo: self.view.safeAreaLayoutGuide.topAnchor).isActive = true
        tableView.leadingAnchor.constraint(equalTo: self.view.leadingAnchor).isActive = true
        tableView.bottomAnchor.constraint(equalTo: self.view.bottomAnchor).isActive = true
        tableView.trailingAnchor.constraint(equalTo: self.view.trailingAnchor).isActive = true
        tableView.register(Cell.self, forCellReuseIdentifier: "cell")
        tableView.register(Header.self, forHeaderFooterViewReuseIdentifier: "header")
        tableView.backgroundColor = .clear

        self.navigationController?.navigationBar.barTintColor = .red
        self.navigationController?.navigationBar.isTranslucent = false
        self.navigationController?.navigationBar.setValue(true, forKey: "hidesShadow")

    }

    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return 3
    }


    func scrollViewDidScroll(_ scrollView: UIScrollView) {
        if scrollView.contentOffset.y < 0 {
            backViewHeight?.constant = -scrollView.contentOffset.y
        }
    }

    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)
        return cell
    }

    func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
        let header = tableView.dequeueReusableHeaderFooterView(withIdentifier: "header")
        header?.contentView.backgroundColor = .red
        let headerLabel = UILabel(frame: CGRect(x: 0, y: 0, width: tableView.bounds.size.width, height: 100))
        headerLabel.textAlignment = .center
        headerLabel.text = "Header"
        header?.addSubview(headerLabel)
        return header
    }

    func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
        return 100
    }

    func tableView(_ tableView: UITableView, viewForFooterInSection section: Int) -> UIView? {
        let view = UIView()
        view.backgroundColor = .white
        return view
    }

}

class Cell: UITableViewCell {

    let label : UILabel = {
        let label = UILabel()
        label.text = "One Label"
        return label
    }()

    override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
        super.init(style: style, reuseIdentifier: reuseIdentifier)
        self.backgroundColor = .clear
        setupViews()
    }

    func setupViews() {
        self.backgroundColor = .white
        self.addSubview(label)
        label.frame = self.frame
    }

    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
}

class Header : UITableViewHeaderFooterView {


    override init(reuseIdentifier: String?) {
        super.init(reuseIdentifier: reuseIdentifier)
    }

    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }

}
Related Posts Related Posts :
  • Inserting into Array and comparing Dates Swift iOS Code
  • IBDesignable UI is not showing in Xcode 9 with Swift
  • Ask for only Request Always Authorization, and not When-In-Use Authorization
  • "Google/Analytics.h file not found" after updating pod to GoogleAnalytics
  • Post request with HTTP header parameters
  • Managing cookies for a domain in Associated Domains
  • Array items showing error in IOS
  • Saving asynchronously downloaded files' contents to SQLITE
  • Swift 4 - animating both alpha and constraint affects other components alpha value
  • UIView animation in completion block starts with displacement
  • List all Apps and Track Internet Usage
  • Handling Back To Back HTTP Posts SWIFT 4.0
  • Azure App Service Push - registration endpoint
  • Select multiple item in a tableView
  • Apartment number / Unit number returned from google places api
  • How to align UICollectionViewCells from left to right?
  • How can I add search option on UIPickerview in ios?
  • Scenekit - physicsWorld setup to prevent kinematic nodes to intersect
  • Carthage Build Failed
  • swift 3, ios 10 - push notification firebase is not received
  • App Xcode 8 to Xcode 9 - Prevent Auto Hide Status Bar
  • How to pop back to a TableViewController?
  • Is UserDefaults thread safe in Swift? How to check it?
  • UISwitch in a table selects multiple cells when switch state on
  • iOS App with no story board (Size classes and Device type limitations)
  • AudioKit issue, mic not sensitive enough
  • send indexpath to Firebase (like button)
  • UIColor saturation brightness values different from the regular saturation luminosity values of a color
  • JSON: Extracting Data Using Alamofire and Swift 3
  • invalid_grant on OAuth2 request when obtaining access_token from SSO in App
  • ABNewPersonViewController using contact framework
  • Design iOS button scalable
  • Subclassing NSLayoutConstraint constant based on screen height
  • Migrate Realm 2.x List of Object to Realm 3.x List of String (or other primary type)
  • Using BLE RSSI value for connect-by-proximity
  • Backgroundcolor of NSTextfield
  • Firebase modifying uid in every view
  • How to rotate orientation?
  • Upload a new version of ios app to app store?
  • UIScrollView do not scroll down to its original position when keyboard disappear
  • What is the most effective way of tracking time/dates in an iOS/Swift application?
  • WatchKit get user's preferred handedness
  • Location permission dialog is shown and immediately disappears
  • Combine these regex expressions
  • How to save an array of HKQuantitySamples (heart rate) to a workout
  • RestKit mapping with parent key as attribute and key contains parenthesis
  • How to add UITextField programmatically to UIScrollView without breaking constraints?
  • How to make a view height grow depending on its child views contents
  • Some users experiencing NSInternalInconsistencyException crash
  • Mark successful siesta response as error
  • Using a modified PDFTron Tools Framework
  • How can I use universal links when I call openURL inside my own app?
  • NSArray of doubles iOS (Objective c)
  • Passing data from embedded PageViewController to parent View Controller
  • Reuse item inside a row when scrolling
  • Realm Relation how to implement
  • error: generic parameter 'T' could not be inferred in swift
  • Adding shadow to UITextView makes text expand out of UITextViewFrame
  • How to change the string in seconds to minutes in Swift3?
  • Search bar is refreshing the index of my table view cell
  • shadow
    Privacy Policy - Terms - Contact Us © voile276.org