[ad_1] You need to instantiate imageView before setting the frame. e.g. self.imageView = UIImageView(image: UIImage(named: “image”)) [ad_2] solved Why am I receiving a nil value in this imageview? [closed]
[ad_1] You need to use pow method of math.h from C-language. antilog = pow(10, number) ; This will give you antilog of number by base10 Side Note: As you are creating a Scientific Calculator and you would be needing Base for the number. EDIT: double number=74.5; double logOfNumber=log10(number); double antilog = pow(10, logOfNumber) ; NSLog(@”%lf”,antilog); … Read more
[ad_1] Look into DSP, (Digital signal processing). This won’t come easy as it does get rather complicated (ever heard of a Fourier transform?). Start by trying to make something react to audio first as you will learn a lot about how to do what you want to do. tl;dr: there is no magic way to … Read more
[ad_1] A couple of thoughts: You’re written a method, MysetValue which is a bit redundant. When you synthesized your columNumber property, it writes a setter method for you, setColumNumber, that does this for you. Don’t write your own setter if you don’t need to. If you have a property, columNumber that you’ve defined in your … Read more
[ad_1] That’s not the best segue code. Here’s how I’d code it (for the record, there are several ways to code this): override func prepare(for segue: UIStoryboardSegue, sender: Any?) { if segue.identifier == “[segue name here]” { if let nextVC = segue.destination as? CreateTasksViewController { nextVC.tasksVC = self } } } The code you posted … Read more
[ad_1] SOAP, originally defined as Simple Object Access Protocol, It is a protocol specification for exchanging structured information in the implementation of Web Services in computer networks. for more Info do Google. “How can we integrate SOAP in iOS“ Answer : http://www.priyaontech.com/2012/10/soap-based-webservices-integration-in-an-ios-app/ [ad_2] solved What is SOAP Services ? How can we integrate SOAP in … Read more
[ad_1] try doing: self.countLabel.text = [NSString stringWithFormat:@”%ld”, (long)–self.total]; [ad_2] solved When I get error when try to set text for Label?
[ad_1] as? is use to cast one type to another, you are asking Xcode to cast response to another type, but haven’t told it what to cast it to. As the error says, its expecting to see a type after the keyword as 2 [ad_2] solved Expected type after as
[ad_1] Short answer: You can’t. Long Answer: For the security of iOS users, Apple does not allow any application to work with important hardware matters, such as locking the iPhone or controlling the usage of other apps. If your app even attempts to do such a thing (using any method, like external APIs), your app … Read more
[ad_1] goto File > New > File or use shortcut key (COMMAND+N) Select Cocoa Touch Class Enter Class Name AddCommentsViewController Select Subclass of UIViewController Press Next and then press create. A new Cocoa Touch class named AddCommentsViewController is created inherit from UIViewController [ad_2] solved What is inheriting in swift 4
[ad_1] Assuming you realize this is array: NSArray *a = [[NSArray alloc] init]; NSMutableArray *a1 = [[NSMutableArray alloc] init]; for(int i = 1; i < a.count; i++) { [a1 addObject: a[i]]; } 1 [ad_2] solved Saving data in NSDictionary from NSDictionary
[ad_1] Finally I found a solution for this. ….>In appdelegate (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification { UIApplicationState state = [application applicationState]; if (state == UIApplicationStateActive) { UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@”Reminder” message:notification.alertBody delegate:self cancelButtonTitle:@”OK” otherButtonTitles:nil]; [alert show]; } // Request to reload table view data [[NSNotificationCenter defaultCenter] postNotificationName:@”Notification” object:self]; } ….>create reminder-SecondClass(Save Action) UILocalNotification* localNotification … Read more
[ad_1] Don’t use NSDictionary in swift. Use [String:Any]. Get all values of the dictionary and join the array of strings. And join the error with a new line as a separator. let jsonObj:[String: Any] = [“error”: [ “email”: [“The email has already been taken.”], “phone”: [“The phone has already been taken.”]] ] if let errorMsgs … Read more
[ad_1] Well you can get started with the Camera API(updated to Camera2 API) and the CameraX API which will help you with photography on Android devices. Camera2API described here CameraAPI Documentation Video Recording Documentation CameraX Documentation Regarding storage, I suggest that you start with what is provided in the Google Documentation and work your way … Read more
[ad_1] when I swipe form left to right, the controller is being shown from right Disclaimer: I usually am in Cocoa so not all here may work. The tableView is in focus, so is also first responder and so the UIScrollView in which the TableView is embedded eats your swipes and scrolls instead. One option … Read more