CLLocationManager() has distanceFilter and pausesLocationUpdatesAutomatically. You can add a distanceFilter to “ignore” positions and set pausesLocationUpdatesAutomatically to true. If you are using location for navigation don’t hesitate to use kCLLocationAccuracyBestForNavigation 3 solved Location Tracking bouncing the current location and by default drawing the route
You can use filter to keep only the elements of the array whose age property doesn’t equal 10. let filtered = array.filter { $0.age != “10” } Unrelated to your question, but why is age a String? It should be an Int instead, since it represents a numeric value. Also, you should always make properties … Read more
What you want IMHO @IBAction func didTapPreviousButton(_ sender: UIButton) { currentTrack -= 1 if currentTrack < 0 { currentTrack = (urlPlayerItems.count – 1) < 0 ? 0 : (urlPlayerItems.count – 1) } playTrack() } Correct replacing of POSTFIX as you have it (useless) @IBAction func didTapPreviousButton(_ sender: UIButton) { if currentTrack < 0 { currentTrack … Read more
The problem is merely that your structs look nothing at all like your JSON! Your JSON is a dictionary whose keys have names like “-8802586561990153106-1804221538-5” and “8464567322535526441-1804221546-15”. But I don’t see you declaring any struct that deals with those keys. Then each of those turns out to be a dictionary with keys like “zug”, “ankunft”, … Read more
The issue was that on iPhone HKHealthStore returns all records, however on watch only records added by release versions of the app are fetched. That’s why I didn’t see the same data on watch as on iPhone. solved Is HealthKit query on WatchOS limited?
You need #available(iOS 10.0, *) syntax to separate your logic for iOS 10.0+ or else. I am sure you can find a lot of answers in here. Local and Push Notifications in IOS version compatible 1 solved what is the way to create local notification in iOS 10 . does it work in older iOS … Read more
Instead of JSONSerialization.jsonObject(with:) you are using NSKeyedUnarchiver, Also use native Data instead of NSData. var json = [AnyHashable:Any]() if let filePath = Bundle.main.path(forResource: “realstories”, ofType: “json”), let data = try? Data(contentsOf: URL(fileURLWithPath: filePath)), let dic = (try? JSONSerialization.jsonObject(with: data)) as? [AnyHashable:Any] { json = dic } solved Objective – C to Swift : NSData with … Read more
I think it would be best to pull from the device’s Contacts, using the Contacts Framework – in Xcode this is the Contacts.framework package. The Apple site offers some sample code that you might be able to take advantage of in your application. For that you’d need permission from the user by enabling a NSContactsUsageDescription … Read more
If you have created the UITextField and UIImageViews objects using nib or in storyboard, check whether the IBOutlets of them are connected. If you have created these UI elements via code(in a function), check the function is getting called. 1 solved Text field and images are nil [closed]
@user3815344’s answer works, however you can simplify it by using minElement and maxElement to retrieve the minimum and maximum values. For example: let arr = [“55a”, “95a”, “66”, “25”, “88b”, “#”] let numbers: [Int] = arr.reduce([]) { if let num = “”.join($1.componentsSeparatedByCharactersInSet(NSCharacterSet.decimalDigitCharacterSet().invertedSet)).toInt() { return $0 + [num] } return $0 } minElement(numbers) // 25 maxElement(numbers) … Read more
You can use filter method of array: //this filter will return you all objects whose group type is equal to 1 let collectionArray = (product_groups?.filter({$0.group_type == 1})) //this filter will return you all objects whose group type is equal to 2 let tableArray = (product_groups?.filter({$0.group_type == 2})) For group title to be section header: – … Read more
You need to write it like this: func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell { let cell = collectionView.dequeueReusableCell(withReuseIdentifier: “MenuCollectionViewCell”, for: indexPath) as! MenuCollectionViewCell return cell } 3 solved Editor placeholder in source file swift [duplicate]
To open office files within an iOS app you can: 1- Use UIWebView . Here is a sample code with a document included in the app’s resources. NSString *path = [[NSBundle mainBundle] pathForResource:@”document” ofType:@”ppt”]; NSURL *url = [NSURL fileURLWithPath:path]; NSURLRequest *request = [NSURLRequest requestWithURL:url]; [self.webView loadRequest:request]; 2- You can use the QuickLook framework to preview … Read more
This is a very simple example as starting point showing only the relevant data. The example decodes the list array into a custom struct. the dt key is decoded into Date. Then it creates a DateComponents instance with noon in the current time zone and filters the dates. struct WeatherData : Decodable { let cod … Read more
The issue is that Int can only store 64bit numbers (on 64bit platforms) and Fibonacci 95 is bigger than the maximum number that can be stored on 64bits. Fibonacci 95 is 31 940 434 634 990 099 905, while the biggest number Int64 can hold is 2^63-1 = 9 223 372 036 854 775 807. … Read more