swift3

问题 I have this simple application with a UIWebView, but I can not use the cookies to store the loggin or keep the user logged. I open the application, I log in, I close the application, and when I open it again the login fields are blank. I would like at least that the user and password were filled based on cookies this is the code from viewController.swift import UIKit class ViewController: UIViewController { @IBOutlet var myWebView: UIWebView! override func viewDidLoad() { super.viewDidLoad()

问题 I am having some set of NSMutableArray like: ( { name = "ILTB"; source = "iltb.net"; }, { name = "Baran Bench"; source = "baranbench.com"; }, { name = "Income Tax India 1"; source = "Income Tax India 1"; } ) How to check Key availability in this NSMutableArray. For Example I need to check "ILTB" is already in my MutableArray or not. 回答1: First of all ILTB is not key but its value for key name . You probably want search from array. Now in Swift instead of NSArray use Swift's native array of

问题 This question already has answers here : Attempt to present UIViewController on UIViewController whose view is not in the window hierarchy (30 answers) Closed 2 years ago . I am trying to present AlertView once the user clicks on the local notification. The AlertView has options of cancel or ok. extension ViewController:UNUserNotificationCenterDelegate{ func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler

问题 I read the below link and now I understood that I need to make an api call to fetch the contacts. As I am new to Swift3 could someone guide me how to do this. I read somewhere that Almofire and Swifty json would help and I also read GData also will help. I am little confused. Please guide me. Google Contacts API 回答1: You might want to try Google Sign-In for iOS, get users into your apps quickly and securely, using a registration system they already use and trust—their Google account. This

问题 im working on map and tableview. i have 4 locations and i have distance between each other, now i want that when i click on any cell then that cell should comes on 1st position and after with sort all other location will be place. func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) { let indexPath = tableView.indexPathForSelectedRow let currentCell = tableView.cellForRow(at: indexPath!)! print(currentCell.textLabel!.text as Any) print(indexPath?.row as Any) print

问题 Catch clauses in Swift must be exhaustive. Does it mean I always need to use a wildcard or empty catch clauses whenever I want to avoid error propagation? Example: enum Oops: Error { case oh, ouch, meh } func troublemaker() { do { throw Oops.meh } catch Oops.oh {} catch Oops.ouch {} catch Oops.meh {} // Error: Error is not handled because the enclosing catch is not exhaustive } Of course, it is fixed if I add throws to the function. Same goes for adding either catch {} or catch _ {} . But is

问题 I've followed the solution at Make a Swift dictionary where the key is "Type"? to create dictionaries that can use a class type as keys. What I want to do is: I have one dictionary that should store class types with their class type (aka metatype) as keys, too: class MyScenario { static var metatype:Metatype<MyScenario> { return Metatype(self) } } var scenarioClasses:[Metatype<MyScenario>: MyScenario.Type] = [:] Then I have methods to register and execute scenarios: public func

问题 Scenario: Create and display an overlay (ancillary) UIWindow. Related Discussion: How do I toggle between UIWindows? Code: fileprivate func displayOverLay() { let myWindow = {() -> UIWindow in let cWindow = UIWindow(frame: CGRect(x: 10, y: 200, width: 300, height: 300)) cWindow.backgroundColor = UIColor.gray.withAlphaComponent(0.5) cWindow.tag = 100 return cWindow }() myWindow.makeKeyAndVisible() myWindow.windowLevel = UIWindowLevelAlert let storyboard = UIStoryboard(name: "Hamburger", bundle

问题 I am making an api call from my iOS app in swift 3 like so: @IBAction func registerAccountButtonWasPressed(sender: UIButton) { let dob = self.dobTextField.text!.components(separatedBy: "/") let URL = "https://splitterstripeservertest.herokuapp.com/account/create" let params = [ "first_name": firstNameTextField.text!, "last_name": lastNameTextField.text!, "line1": addressLine1TextField.text!, "city": cityTextField.text!, "postal_code": postCodeTextField.text!, "country": countryTextField.text!

问题 I am trying to make custom keyboard.For simple custom keyboard it is running fine, but while clicking on emoji it is showing below error : viewServiceDidTerminateWithError:: Error Domain=_UIViewServiceInterfaceErrorDomain Code=3 "(null)" UserInfo={Message=Service Connection Interrupted} I have also tried running this with Device but still it is showing same error. Do anyone know what is the solution for it? 回答1: I encountered same issue like you. it's because of memory leak on simulator. and