Introduction Swift is a powerful and intuitive programming language that is used to develop applications for iOS, macOS, watchOS, and tvOS. One of the most important aspects of Swift is its syntax, which is designed to make code easier to read and understand. One of the key features of Swift syntax is the ability to … Read more
Please try the code below String(utf8Text).trimmingCharacters(in: .whitespacesAndNewlines) == “success” 0 solved Swift: String comparison with ==
do Directly as let Media_list = jsonData[“staffData”] as? NSDictionary let dataurl = Media_list[“url”] as? String 2 solved Json data is not parsing in swift3 [duplicate]
Replace viewDidLoad to viewDidAppear solved my problem override func viewDidAppear() { super.viewDidLoad() performSegue(withIdentifier: “go” , sender: self) } 0 solved xcode swift4 how do I change the page in viewdidload
try this below code if let button = sender as? UIButton { if button.isSelected { // set selected button.isSelected = true } else { // set deselected button.isSelected = false } } For shorthand, try this if let button = sender as? UIButton { button.isSelected = !button.isSelected } 1 solved selected and deselected checkbox in … Read more
Could you make it easy for me to understand how it works? It doesn’t. The whole meaning of Any is that it could be anything. But not just anything can be turned into a Data. That is why protocols like Codable and NSCoding (to which SCNNode conforms) exist — and why Any cannot conform to … Read more
If you want to keep it packed in some type you better use enum instead: enum RandomMessage: String, CaseIterable { case message1 = “Message1” case message2 = “Message2” case message3 = “Message3” case message4 = “Message4” case message5 = “Message5” static var get: String { return allCases.randomElement()!.rawValue } } This way you will guarantee that … Read more
You can´t just return words in your closure. First of all it´s an async method second you need to return a value outside of the closure which will be called before the closure. You need to have a completionHandler instead of returning Array<Any>. In that case you can pass the value if and when it … Read more
Apple will probably not begin to accept apps created for watchOS 2 before we get closer to the actual release of the operative system. As a reference, Apple started to ask developers to submit their apps targeted Apple Watch (the first version of the OS) on march 31, only about 25 days before the release … Read more
As already mentioned NSCalendar has a method rangeOfUnit:inUnit:forDate:. The proper calendar units are CalendarUnitWeekOfYear and CalendarUnitMonth The result might be different for the locale and first weekday of the week settings. let calendar = NSCalendar.currentCalendar() let weekRange = calendar.rangeOfUnit(NSCalendarUnit.CalendarUnitWeekOfYear, inUnit: .CalendarUnitMonth, forDate: NSDate()) let weekArray = Array(weekRange.location..<weekRange.location + weekRange.length) Swift 3: let calendar = Calendar.current … Read more
Try this code to avoid duplication I hope “id” value will be unique in your dictionary. var mydictionary = [“id”: “1”, “quantity”: “”,”sellingPrice”:””] as [String : Any] var arrayOfDictionary = [Dictionary<String, Any>]() //declare this globally let arrValue = arrayOfDictionary.filter{ (($0[“id”]!) as! String).range(of: mydictionary[“id”]! as! String, options: [.diacriticInsensitive, .caseInsensitive]) != nil } if arrValue.count == 0 … Read more
This will all depend on how your app functions, what it is meant to do, etc. Each of the methods of navigation mentioned in your question can all be used in conjunction with one another to meet the needs your specific app. It is best to assess what exactly your app needs and then decide … Read more
In terms of an interface, I’d suggest looking at a few things there: 1) Being (i you’re acquainted to it) the Cocoa / UIKit interface I know it sounds like an obvious place to refer to, but tire’s a load of info here on the apple site that helps. 2) Look at the “Core Animation” … Read more
try using completion handler for your function or may try Operation queue with dependency to wait coreDataAdd (where : “User”, onCompletion: { (isFinished) in if isFinished { coreDataAdd (where : “Profile”, onCompletion: { (isFinished) in if isFinished { coreDataAdd (where : “Profile”, onCompletion: { (isFinished) in if isFinished //Here segue to the next view let … Read more
There are two things you should consider. First reload data will be called right away after reloadTransaction() if your url request hasn’t processed yet, it will show an empty tableView. Second, when you have new data make sure to call the main thread before you call self.tableView.reloadData(): internal func reloadTransaction(){ self.transactionList.removeAll() //get URL response and … Read more