After hours of reading and re-coding I still can't find a solution.
I want to build a simple app, that tracks my location in the background. On first application load I set up a region around my current location, start monitoring for exactly this region and stopUpdatingLocations. Once the app gets the didExitRegion event, I again get the current location, set up another region (after cleaning all other monitored regions) and it all starts again.
The app has alwaysAuthorization for location, background mode for location updates is set, PList contains LocationAlwaysAndWhenInUseUsageDescription and LocationWhenInUseUsageDescription.
For some time, it works great. But after many hours of not moving, the app gets suspended and does not receive any more location updates, not even the monitor event, which should relaunch the app when I understand this () correctly.
Could anyboy give me a hint?
Thanks.
import UIKit
import CoreLocation
import UserNotifications
#UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
let locationManager = CLLocationManager()
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
let currentNotifications = UNUserNotificationCenter.current()
currentNotifications.getNotificationSettings { (settings) in
if settings.authorizationStatus == .notDetermined {
UNUserNotificationCenter.current().requestAuthorization(options: [.alert, .sound]) { (granted, error) in }
}
}
locationManager.delegate = self
locationManager.requestAlwaysAuthorization()
locationManager.allowsBackgroundLocationUpdates = true
locationManager.startUpdatingLocation()
return true
}
}
extension AppDelegate: CLLocationManagerDelegate {
func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
let location = locations[0]
let now = Date()
let formatter = DateFormatter()
formatter.timeZone = TimeZone.current
formatter.dateFormat = "yyyy-MM-dd HH:mm:ss"
for region in locationManager.monitoredRegions {
locationManager.stopMonitoring(for: region)
}
var regionIdentifier = String(format: "%f", location.coordinate.latitude) + ", " + String(format: "%f", location.coordinate.latitude) + "( set on " + formatter.string(from: now) + ")"
var geofenceRegion = CLCircularRegion(center: CLLocationCoordinate2DMake(location.coordinate.latitude, location.coordinate.longitude), radius: 250, identifier: regionIdentifier)
geofenceRegion.notifyOnExit = true
locationManager.startMonitoring(for: geofenceRegion)
locationManager.stopUpdatingLocation()
}
func locationManager(_ manager: CLLocationManager, didExitRegion region: CLRegion) {
locationManager.stopMonitoring(for: region)
sendNotification(title: "Event triggered", subtitle: "Region exit", body: region.identifier)
locationManager.startUpdatingLocation()
}
}
public func sendNotification(title: String, subtitle: String, body: String) {
let content = UNMutableNotificationContent()
content.title = title
content.subtitle = subtitle
content.body = body
content.sound = .default
let identifier = "geoStalker4_notification_" + String(format: "%f", NSDate().timeIntervalSince1970)
let trigger = UNTimeIntervalNotificationTrigger(timeInterval: 3, repeats: false)
let request = UNNotificationRequest(identifier: identifier, content: content, trigger: nil)
UNUserNotificationCenter.current().add(request, withCompletionHandler: nil)
}
Try adding this to your locationManager settings:
locationManager.pausesLocationUpdatesAutomatically = false
Related
I have a question about how one can connect a Search Bar with MapKit, so that it is able to search for places/ locations (not using StoryBoard). I have already written the code for the Search Bar and for the MapView in separate files, but even after trying literally every code and tutorial on the internet, I couldn't find a way to connect the Search Bar to search for locations. Below one can see respectively the used SearchBar.swift file, the MapViewController.swift and a snippet of the ContentView.swift.
SearchBar.swift
import UIKit
import Foundation
import SwiftUI
import MapKit
struct SearchBar: UIViewRepresentable {
// Binding: A property wrapper type that can read and write a value owned by a source of truth.
#Binding var text: String
// NSObject: The root class of most Objective-C class hierarchies, from which subclasses inherit a basic interface to the runtime system and the ability to behave as Objective-C objects.
// UISearchBarDelegate: A collection of optional methods that you implement to make a search bar control functional.
class Coordinator: NSObject, UISearchBarDelegate {
#Binding var text: String
let Map = MapViewController()
init(text: Binding<String>) {
_text = text
}
func searchBar(_ searchBar: UISearchBar, textDidChange searchText: String) {
text = searchText
}
func searchBarTextDidBeginEditing(_ searchBar: UISearchBar) {
}
func searchBarCancelButtonClicked(_ searchBar: UISearchBar) {
text = ""
searchBar.showsCancelButton = true
searchBar.endEditing(true)
searchBar.resignFirstResponder()
}
}
func makeCoordinator() -> SearchBar.Coordinator {
return Coordinator(text: $text)
}
func makeUIView(context: UIViewRepresentableContext<SearchBar>) -> UISearchBar {
let searchBar = UISearchBar(frame: .zero)
searchBar.delegate = context.coordinator
searchBar.showsCancelButton = true
searchBar.searchBarStyle = .minimal
//searchBar.backgroundColor = .opaqueSeparator
searchBar.showsCancelButton = true
return searchBar
}
func updateUIView(_ uiView: UIViewType, context: Context) {
uiView.text = text
}
}
MapViewController.swift
class MapViewController: UIViewController, CLLocationManagerDelegate {
let mapView = MKMapView()
let locationManager = CLLocationManager()
#Published var permissionDenied = false
override func viewDidLoad() {
super.viewDidLoad()
setupMapView()
checkLocationServices()
}
func setupMapView() {
view.addSubview(mapView)
mapView.translatesAutoresizingMaskIntoConstraints = false
mapView.topAnchor.constraint(equalTo: view.topAnchor).isActive = true
mapView.bottomAnchor.constraint(equalTo: view.bottomAnchor).isActive = true
mapView.rightAnchor.constraint(equalTo: view.safeAreaLayoutGuide.rightAnchor).isActive = true
mapView.leftAnchor.constraint(equalTo: view.safeAreaLayoutGuide.leftAnchor).isActive = true
}
func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
let span = MKCoordinateSpan(latitudeDelta: 0.005, longitudeDelta: 0.005)
guard let location = locations.last else { return }
let region = MKCoordinateRegion(center: location.coordinate, span: span)
mapView.setRegion(region, animated: true)
let categories:[MKPointOfInterestCategory] = [.cafe, .restaurant]
let filters = MKPointOfInterestFilter(including: categories)
mapView.pointOfInterestFilter = .some(filters)
// Enables the scrolling around the user location without hopping back
locationManager.stopUpdatingLocation()
}
func checkLocalAuthorization() {
switch CLLocationManager.authorizationStatus() {
case .authorizedWhenInUse:
mapView.showsUserLocation = true
followUserLocation()
locationManager.startUpdatingLocation()
break
case .denied:
permissionDenied.toggle()
break
case .notDetermined:
locationManager.requestWhenInUseAuthorization()
case .restricted:
// Show alert
break
case .authorizedAlways:
break
#unknown default:
fatalError()
}
}
func checkLocationServices() {
if CLLocationManager.locationServicesEnabled() {
setupLocationManager()
checkLocalAuthorization()
} else {
// user did not turn it on
}
}
func followUserLocation() {
if let location = locationManager.location?.coordinate {
let region = MKCoordinateRegion.init(center: location, latitudinalMeters: 4000, longitudinalMeters: 4000)
mapView.setRegion(region, animated: true)
}
}
func locationManager(_ manager: CLLocationManager, didChangeAuthorization status: CLAuthorizationStatus) {
checkLocalAuthorization()
}
func setupLocationManager() {
locationManager.delegate = self
locationManager.desiredAccuracy = kCLLocationAccuracyBest
}
func locationManager(_ manager: CLLocationManager, didFailWithError error: Error) {
print(error.localizedDescription)
}
}
The methods are then called in the ContentView.swift, using these methods:
struct MapViewRepresentable: UIViewControllerRepresentable {
func makeUIViewController(context: Context) -> some UIViewController {
return MapViewController()
}
func updateUIViewController(_ uiViewController: UIViewControllerType, context: Context) {
}
}
struct ContentView: View {
#State private var searchText : String = ""
var body: some View {
ZStack(alignment: .top) {
MapViewRepresentable()
.edgesIgnoringSafeArea(.all)
.onTapGesture {
self.endTextEditing()
}
SearchBar(text: $searchText)
}
}
}
Is it possible to connect both like I explained, or is there another method you advice? I really hope you guys can help me! Thanks in advance :)
I'm trying to create a Countdown Timer application that runs in the Menu Bar, with no window or dock icon. I've been building this off of mostly tutorials I find online and I know the code is kind of messy (I plan to clean up after it functions properly). The issue I'm running into. In the AppDelegate I create the StatusBar item with no issue, but I can't figure out how to update it from the viewController. It instead is creating a new StatusBar item.
//AppDelegate info
class AppDelegate: NSObject, NSApplicationDelegate
{
let item = NSStatusBar.system.statusItem(withLength: NSStatusItem.variableLength)
let popover = NSPopover()
func applicationDidFinishLaunching(_ aNotification: Notification)
{
menuBarRefresh(self)
}
func menuBarRefresh(_ sender: Any?)
{
if let button = item.button
{
button.image = NSImage(named: NSImage.Name("2"))
//button.title = initialTime.stringValue
button.action = #selector(togglePopover(_:))
}
popover.contentViewController = TimerViewController.freshController()
}
#objc func togglePopover(_ sender: Any?)
{
if popover.isShown
{
closePopover(sender: sender)
}
else
{
showPopover(sender: sender)
}
}
func showPopover(sender: Any?)
{
if let button = item.button
{
popover.show(relativeTo: button.bounds, of: button, preferredEdge: NSRectEdge.minY)
}
}
func closePopover(sender: Any?)
{
popover.performClose(sender)
}
//Controller code
import Cocoa
import AVFoundation
//Checking to ensure entered data is numeric
extension String
{
var isNumeric: Bool
{
let range = self.rangeOfCharacter(from: CharacterSet.decimalDigits.inverted)
return (range == nil)
}
}
class TimerViewController: NSViewController
{
//Here's the texts fields for the user to enter content.
#IBOutlet var hourInput: NSTextField!
#IBOutlet var minuteInput: NSTextField!
#IBOutlet var secondInput: NSTextField!
//This is the label used to display the counter
#IBOutlet var initialTime: NSTextField!
//Here are the variables we're going to need
var hours = Int() //Place holder for the hours
var minutes = Int() //Place holder for the hours
var seconds = Int() //Place holder for the hours
var timer = Timer() //The timer we'll use later
var audioPlayer = AVAudioPlayer() //The audio player
var timeRemaining = Int() //Place holder for the total 'seconds' to be counted
var firstRun = Bool()
let item = NSStatusBar.system.statusItem(withLength: NSStatusItem.variableLength)
override func viewDidLoad()
{
super.viewDidLoad()
getData() //Pull last saved time from Core Data and load it.
hourInput.stringValue = "\(hours)" //Loading the hours into the hours field
minuteInput.stringValue = "\(minutes)" //Loading the minutes into the minutes field
secondInput.stringValue = "\(seconds)" //Loading the seconds into the seconds field
initialTime.stringValue = "00:00:00" //Resetting the 'counter' to 0
firstRun = true
updateStatusBar(self)
//Here we load up the audio file for the 'done' chime. If not available we print the catch
do
{
let audioPath = Bundle.main.path(forResource: "Done", ofType: "m4a")
try audioPlayer = AVAudioPlayer(contentsOf: URL(fileURLWithPath: audioPath!))
}
catch
{
print("No Joy")
}
/* if let button = item.button
{
button.image = NSImage(named: NSImage.Name("2"))
button.title = initialTime.stringValue
button.action = #selector(togglePopover(_:))
}
*/ }
}
// MARK: Storyboard instantiation
extension TimerViewController
{
static func freshController() -> TimerViewController
{
let storyboard = NSStoryboard(name: NSStoryboard.Name("Main"), bundle: nil)
let identifier = NSStoryboard.SceneIdentifier("TimerViewController")
guard let viewcontroller = storyboard.instantiateController(withIdentifier: identifier) as? TimerViewController
else
{
fatalError("Why can't I find TimerViewController? - Check Main.storyboard")
}
return viewcontroller
}
}
//Button actions follow
extension TimerViewController
{
#IBAction func clearButton(_ sender: Any)
{
clearFields()
timer.invalidate()
audioPlayer.stop()
}
#IBAction func pauseButton(_ sender: Any)
{
timer.invalidate()
}
#IBAction func quitButton(_ sender: Any)
{
exit(0)
}
#IBAction func startButton(_ sender: Any)
{
grabData()
setData()
timeRemaining = (hours*3600)+(minutes*60)+seconds
if timeRemaining <= 0
{
initialTime.stringValue = "Enter Time"
}
else
{
displayTime()
timer = Timer.scheduledTimer(timeInterval: 1, target: self, selector: #selector(ViewController.startCountDown), userInfo: nil, repeats: true)
clearFields()
updateStatusBar(self)
}
}
}
//MARK: Other Functions
extension TimerViewController
{
func displayTime()
{
let secondsDisplay = String(format: "%02d", (timeRemaining%60))
let minutesDisplay = String(format: "%02d", (timeRemaining%3600)/60)
initialTime.stringValue = "\(timeRemaining/3600):\(minutesDisplay):\(secondsDisplay)"
}
func grabData()
{
hours = hourInput.integerValue
minutes = minuteInput.integerValue
seconds = secondInput.integerValue
}
func clearFields()
{
hourInput.stringValue = ""
minuteInput.stringValue = ""
secondInput.stringValue = ""
initialTime.stringValue = "00:00:00"
}
func setData()
{
setHour()
setMinute()
setSecond()
}
func getData()
{
getHour()
getMinute()
getSecond()
}
#objc func showTimer(_ sender: Any?)
{
print("Are we here")
}
#objc func startCountDown()
{
timeRemaining -= 1
displayTime()
updateStatusBar(self)
print(timeRemaining)
if timeRemaining == 0
{
timer.invalidate()
audioPlayer.play()
}
}
/* func setNeedsStatusBarAppearanceUpdate()
{
button.image = NSImage(named: NSImage.Name("2"))
button.action = #selector(showTimer(_:))
}
*/
func updateStatusBar(_ sender: Any?)
{
if let button = item.button
{
button.image = NSImage(named: NSImage.Name("2"))
button.action = #selector(showTimer(_:))
button.title = initialTime.stringValue
}
//let menu = NSMenu()
//menu.addItem(NSMenuItem(title: "Clear Timer", action: #selector(AppDelegate.theDv2), keyEquivalent: "R"))
//menu.addItem(NSMenuItem(title: "Quit Timer", action: #selector(AppDelegate.quit), keyEquivalent: "Q"))
//item.menu = menu
}
}
//There's a bunch of CoreData stuff after here but I left that out. I'm just using CoreData mainly to learn how to and functional reason is to store and load the last used time
As it currently works, I get two StatusBar items instead of creating one with the AppDelegate then updating that one from the ViewController.
Yup... Id-10-t error here. Just had to declare 'item' outside the class and all is well. After getting some good sleep and time away from the computer I realized I was not declaring 'item' globally.
I'm trying to write a simple command line app that can display some info on a notification. But, the Delegate is not being called, and neither is the Notification and I'm not sure what's missing here.
Judging from my output, I think the whole problem stems from the AppDelegate not being instantiated. But I am creating one just before I show call showNotification.
What am I missing here?
src/main.swift
import Foundation
import AppKit
var sema = DispatchSemaphore( value: 0 )
let server: String = "http://jsonip.com"
let port: String = "80"
let path: String = "/"
let todoEndpoint: String = server + ":" + port + path
let config = URLSessionConfiguration.default
let session = URLSession(configuration: config)
let url = URL(string: todoEndpoint)!
let task = session.dataTask(with: url, completionHandler: {
(data, response, error) in
if error != nil {
print(error!.localizedDescription)
} else {
do {
if let json = try JSONSerialization.jsonObject(with: data!, options: .allowFragments) as? [String: Any]
{
print(json)
let ad = AppDelegate()
ad.showNotification(title: "Title", subtitle: "SubTitle", informativeText: String(describing: json))
sema.signal()
}
} catch {
print("error in JSONSerialization")
}
}
})
print("Resume Task")
task.resume()
print("Wait for Semaphore")
sema.wait()
src/AppDelegate.swift
import Cocoa
class AppDelegate: NSObject, NSApplicationDelegate, NSUserNotificationCenterDelegate {
func applicationDidFinishLaunching(aNotification: Notification) {
NSUserNotificationCenter.default.delegate = self
print("Delegate Self")
}
// NSUserNotificationCenterDelegate implementation
private func userNotificationCenter(center: NSUserNotificationCenter!, didDeliverNotification notification: NSUserNotification!) {
//implementation
}
private func userNotificationCenter(center: NSUserNotificationCenter!, didActivateNotification notification: NSUserNotification!) {
//implementation
}
private func userNotificationCenter(center: NSUserNotificationCenter!, shouldPresentNotification notification: NSUserNotification!) -> Bool {
//implementation
return true
}
func showNotification(title: String, subtitle: String, informativeText: String) -> Void {
let notification: NSUserNotification = NSUserNotification()
print("Show Notification")
notification.title = title
notification.subtitle = subtitle
notification.informativeText = informativeText
//notification.contentImage = contentImage
notification.soundName = NSUserNotificationDefaultSoundName
NSUserNotificationCenter.default.deliver(notification)
print(notification.isPresented)
}
}
Output
Resume Task
Wait for Semaphore
["about": /about, "reject-fascism":
Impeach Trump!, "ip": 110.50.73.141, "Pro!": http://getjsonip.com]
Show Notification
false
Program ended with exit code: 0
I created a code that receive remote push norification, this code is worked ok. Now I need to add two "buttons" that swip left and do a action. I know that this below code is used to indetify the action
func application(application: UIApplication, handleActionWithIdentifier identifier: String?, forLocalNotification notification: UILocalNotification, completionHandler: () -> Void) {
if identifier == "optin1" {
//do something
}
else identifier == "option2" {
//do something
}
completionHandler()
}
But I dont knew how to create the buttons to swip left. How can I do it
This is my AppDelegate:
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool
{
// Override point for customization after application launch.
let types:UIUserNotificationType = [.Alert, .Sound, .Badge]
application.registerForRemoteNotifications()
application.registerUserNotificationSettings(UIUserNotificationSettings(forTypes: types, categories: nil))
initLocationManager()
return true
}
func application(application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: NSError) {
//print(error)
}
func application(application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: NSData) {
print(deviceToken)
}
func application(application: UIApplication, didReceiveRemoteNotificationuserInfo userInfo: [NSObject : AnyObject]) {
print(userInfo)
}
Update: new version Swift 4 compatible. This example was adapted from this amazing tutorial https://cocoacasts.com/actionable-notifications-with-the-user-notifications-framework
Configure User Notification Center
import UserNotifications
...
UNUserNotificationCenter.current().delegate = self
Define Actions
let actionReadLater = UNNotificationAction(identifier: Constants.Action.readLater,
title: "Read Later",
options: [])
Define Category
let tutorialCategory = UNNotificationCategory(identifier: Constants.Category.tutorial,
actions: [actionReadLater],
intentIdentifiers: [],
options: [])
Register Category
UNUserNotificationCenter.current().setNotificationCategories([tutorialCategory])
Schedule local notifications by instance from an IBAction
// Request Notification Settings
UNUserNotificationCenter.current().getNotificationSettings { (notificationSettings) in
switch notificationSettings.authorizationStatus {
case .notDetermined:
self.requestAuthorization(completionHandler: { (success) in
guard success else { return }
// Schedule Local Notification
self.scheduleLocalNotification()
})
case .authorized:
// Schedule Local Notification
self.scheduleLocalNotification()
case .denied:
print("Application Not Allowed to Display Notifications")
case .provisional:
print("provisional")
}
}
previous version
You can copy&paste this code in didFinishLaunchingWithOptions method:
Create the action
// NOTFICATION
let incrementAction = UIMutableUserNotificationAction()
incrementAction.identifier = "HI_ACTION"
incrementAction.title = "Hi!"
incrementAction.activationMode = UIUserNotificationActivationMode.Background
incrementAction.authenticationRequired = false
incrementAction.destructive = false
Create the category
let counterCategory = UIMutableUserNotificationCategory()
counterCategory.identifier = "HELLO_CATEGORY"
Associate action and category
counterCategory.setActions([incrementAction],
forContext: UIUserNotificationActionContext.Default)
counterCategory.setActions([incrementAction],
forContext: UIUserNotificationActionContext.Minimal)
Registration
let categories = NSSet(object: counterCategory) as! Set<UIUserNotificationCategory>
let settings = UIUserNotificationSettings(forTypes: [.Alert, .Sound], categories: categories)
UIApplication.sharedApplication().registerUserNotificationSettings(settings)
The last step is only for demostration
let notification = UILocalNotification()
notification.alertBody = "Hey!"
notification.soundName = UILocalNotificationDefaultSoundName
notification.fireDate = NSDate(timeIntervalSinceNow: 5)
notification.category = "HELLO_CATEGORY"
UIApplication.sharedApplication().scheduleLocalNotification(notification)
When the app is launched you have to push CMD+L
Here's a link to an example
I'm currently struggling with getting my TableView to update after I finish performing some functions called in viewDidLoad and viewDidAppear. I tried using self.tableView.reloadData() at the end of my viewDidLoad but it didn't work and upon reloading the tab, the app would crash.
Here is some of my code (I'm trying to fetch events from a Google Calendar and display it in a TableView). I'm trying to display an array of strings named listOfEvents and it is being populated after the tableView is already loaded.
I also tried adding self.tableView.reloadData() at the end of my fetchEvents() but it also killed my app upon reloading the tab
class CalendarViewController: UITableViewController {
var listOfEvents: [String] = []
private let kKeychainItemName = "Google Calendar API"
private let kClientID = "clientID"
// If modifying these scopes, delete your previously saved credentials by
// resetting the iOS simulator or uninstall the app.
private let scopes = [kGTLAuthScopeCalendarReadonly]
private let service = GTLServiceCalendar()
let output = UITextView()
// When the view loads, create necessary subviews
// and initialize the Google Calendar API service
override func viewDidLoad() {
super.viewDidLoad()
if let auth = GTMOAuth2ViewControllerTouch.authForGoogleFromKeychainForName(
kKeychainItemName,
clientID: kClientID,
clientSecret: nil) {
service.authorizer = auth
}
}
// When the view appears, ensure that the Google Calendar API service is authorized
// and perform API calls
override func viewDidAppear(animated: Bool) {
if let authorizer = service.authorizer,
canAuth = authorizer.canAuthorize where canAuth {
fetchEvents()
} else {
presentViewController(
createAuthController(),
animated: true,
completion: nil
)
}
}
// Construct a query and get a list of upcoming events from the user calendar
func fetchEvents() {
let query = GTLQueryCalendar.queryForEventsListWithCalendarId("primary")
query.maxResults = 10
query.timeMin = GTLDateTime(date: NSDate(), timeZone: NSTimeZone.localTimeZone())
query.singleEvents = true
query.orderBy = kGTLCalendarOrderByStartTime
service.executeQuery(
query,
delegate: self,
didFinishSelector: "displayResultWithTicket:finishedWithObject:error:"
)
}
// Display the start dates and event summaries in the UITextView
func displayResultWithTicket(
ticket: GTLServiceTicket,
finishedWithObject response : GTLCalendarEvents,
error : NSError?) {
if let error = error {
showAlert("Error", message: error.localizedDescription)
return
}
var eventString = ""
if let events = response.items() where !events.isEmpty {
for event in events as! [GTLCalendarEvent] {
let start : GTLDateTime! = event.start.dateTime ?? event.start.date
let startString = NSDateFormatter.localizedStringFromDate(
start.date,
dateStyle: .ShortStyle,
timeStyle: .ShortStyle
)
eventString += "\(startString) - \(event.summary)\n"
// An array holding all my upcoming events
listOfEvents.append("\(startString) - \(event.summary)")
print(listOfEvents)
}
} else {
eventString = "No upcoming events found."
}
output.text = eventString
self.tableView.reloadData()
}
// Creates the auth controller for authorizing access to Google Calendar API
private func createAuthController() -> GTMOAuth2ViewControllerTouch {
let scopeString = scopes.joinWithSeparator(" ")
return GTMOAuth2ViewControllerTouch(
scope: scopeString,
clientID: kClientID,
clientSecret: nil,
keychainItemName: kKeychainItemName,
delegate: self,
finishedSelector: "viewController:finishedWithAuth:error:"
)
}
// Handle completion of the authorization process, and update the Google Calendar API
// with the new credentials.
func viewController(vc : UIViewController,
finishedWithAuth authResult : GTMOAuth2Authentication, error : NSError?) {
if let error = error {
service.authorizer = nil
showAlert("Authentication Error", message: error.localizedDescription)
return
}
service.authorizer = authResult
dismissViewControllerAnimated(true, completion: nil)
}
// Helper for showing an alert
func showAlert(title : String, message: String) {
let alert = UIAlertController(
title: title,
message: message,
preferredStyle: UIAlertControllerStyle.Alert
)
let ok = UIAlertAction(
title: "OK",
style: UIAlertActionStyle.Default,
handler: nil
)
alert.addAction(ok)
presentViewController(alert, animated: true, completion: nil)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
print(self.listOfEvents.count)
return self.listOfEvents.count
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = self.tableView.dequeueReusableCellWithIdentifier("Events Cell", forIndexPath: indexPath) as UITableViewCell
var event = ""
event = listOfEvents[indexPath.row]
cell.textLabel?.text = event
return cell
}
}
I would appreciate any help and insight :-) Thanks so much!
After output.text = eventString, you should reload the tableview.