I am trying to add a UITableView element to a XIB which I want to present as a sheet from the bottom but I only get the option of static cells.
Isn't it possible to have dynamic tables within a XIB or am I missing something?
In a view with multiple UITextField elements, textFieldDidChangeSelection will trigger for any editing done in any UITextField. Can we perform some action inside this function only when a certain UITextField is edited?
class MyViewController: UIViewController, UITextFieldDelegate {
@IBOutlet weak var text1: UITextField!
@IBOutlet weak var text2: UITextField!
@IBOutlet weak var text2: UITextField!
//..........
func textFieldDidChangeSelection(_ textField: UITextField) {
print(textField.text) // this code should run only for text1 for example
}
}
Post not yet marked as solved
In my app I am fetching RESTful data asynchronously from mutiple servers and merge the responses into an array when they are available:
let respModel = [responses]
I use didSet to check whether respModel is set and then trigger myTableView.reloadData() to udpate the table view each time
Sporadically, my app crashes during table view refresh and I think it's because two RESTful api calls arrive at exactly the same time, creating a deadlock on the respModel
I want to keep the current async functionality in, to get my table view updated whenever a fresh response arrives, but I also want to find a solution to the deadlock problem.
What's the best way to handle it?
I have a table to which I've added a refreshControl and when I pull down the table to refresh the data, I reset the array that feeds the table with data and then immediately request new data through an API call.
Until now, I have used completion handlers and protocols to get the data into the table view but I want to move the logic to async/await because of the complexity needed by the network calls and the pyramid of nested closures.
Populating the view in viewDidLoad works fine but with pullToRefresh selector I get an error:
Thread 1: EXC_BAD_ACCESS (code=1, address=0xbcf917df8160)
override func viewDidLoad() {
super.viewDidLoad()
setupView()
setupTableView()
setupTableRefreshControl()
Task {
await getBalances() //async network call
myTable.reloadData()
}
}
func setupTableRefreshControl() {
myTable.refreshControl = UIRefreshControl()
myTable.refreshControl?.addTarget(self, action: #selector(didPullToRefresh), for: .valueChanged)
}
Code that crashes app:
@objc func didPullToRefresh() async {
balance.reset() // reset array to []
Task {
await getBalances() //async network call
myTable.reloadData()
}
}
Hello,
I am currently learning and developing my first iOS app and I have created a custom UITableViewCell using a XIB file in which I have integrated a UISlider and a SegmentedControl button.
What I want to accomplish is the first time the table loads up, the UISlider is disabled - I accomplish this in awakeFromNib and it also corresponds to the 0 value selection of the SegmentedControl.
Then when a user touches "One" or "Two" on the SegmentedControl I want to enable the UISlider.
I am using a delegated protocol to send the indexPath of the selected cell to my ViewController:
extension ViewController: AccountCellDelegate {
func segmentControlSelected(at index: IndexPath, segmentValue: Int, slider: UISlider) {
slider.isEnabled = (segmentValue != 0)
myTableView.reloadRows(at: [index], with: .none)
}
The problems with this implementation are that I have to click twice on a SegmentedControl button to see its value selected and the UISlider still does not change its appeareance from "faded out - disabled" to normal - enabled unless I click on it.
Do you have any idea if reloadRows(at:with:) is the correct way to refresh the cell so that the UISlider appeareance is correctly displayed?
crsvld.