You need to instantiate imageView before setting the frame. e.g. self.imageView = UIImageView(image: UIImage(named: “image”)) solved Why am I receiving a nil value in this imageview? [closed]
To get things materialistic and kick off, for building charts in iOS try Charts library. One of the best third-party libs out there. Or check this list for even more awesome iOS charts libraries. solved How can I put in charts with swift 3 Xcode 8?
txtOutput should be connected as @IBOutlet and not as a @IBAction with @IBAction you only trigger some actions but you don’t get a reference to the object with @IBOutlet you get a reference to the object and can access the properties like .text of this object Just be carefully when you drag the connections from … Read more
I solve my problem. I just add that code for calling animation transition in my homecontroller: extension HomeController: UIViewControllerTransitioningDelegate { func animationController(forPresented presented: UIViewController, presenting: UIViewController, source: UIViewController) -> UIViewControllerAnimatedTransitioning? { return faceanim() } func animationController(forDismissed dismissed: UIViewController) -> UIViewControllerAnimatedTransitioning? { return faceanim() } } And to button action is: @objc func handleAccount() { let … Read more
You can use custom delegates, which is used for sending messages from one object to another. So when you pressed the button of another view controller then just send the color in the method of custom delegates. Refer this Write Custom Delegates in this StackOverflow answer Refer below sample code to change the color of … Read more
Your code should be var test = [[Int: Any]]() //assign your header for tes in test{ for (key, value) in tes{ // error line print(“\(key)”) } } So first of all: You must have an array of dictionary and not just a dictionary: [[Int: Any]] Change your last for to for (key, value) in tes … Read more
LastCommunicationDate is a string, but you are converting it to a Double. Try this instead: let lastCommunicationDate = “2022-01-21T10:58:21.367” //Create dateformatter to convert string to Date let isoDateFormatter = ISO8601DateFormatter() isoDateFormatter.formatOptions = [ .withFullDate, .withTime, .withColonSeparatorInTime, .withFractionalSeconds ] let isoDateFormatter2 = ISO8601DateFormatter() isoDateFormatter2.formatOptions = [ .withFullDate, .withTime, .withColonSeparatorInTime ] let date = isoDateFormatter.date(from: lastCommunicationDate) ?? … Read more
I think you have asked the same question else where. So here is the answer which also applies here. I found a few things that should be changed in your code. Here is what I did to make your swap function work. This is the function: -(void) swapCharacters: (NSMutableString *)set withInteger: (int)first andInteger: (int)second{ NSLog(@”swap: … Read more
Instead of turning them off why not just redeclare it? If you turn the warnings off completely then you lose the fact that the compiler will give you warnings in genuine places. So just declare it above the unit test @interface NSDate (UnitTests) // your method sig @end @implementation YourUnitTest //… 3 solved Disabling *No … Read more
If your app do not use hardware related function，there is no need to buy latest iphone. For example, if your app need to use BLE or touch ID,you have to use iphone/ipad support this. 2 solved *911 ** help! Does Apple developer program require latest iphone for developing iphone Apps? [closed]
NSPredicate *predicate = [NSPredicate predicateWithFormat:@”wasRead = YES”]; NSArray *arr = [array filteredArrayUsingPredicate:predicate]; Can sort a thousand objects in 0.0004 seconds. Then just do: for (NSDictionary *object in arr) { //Statements } Edit: actually after further experimentation, using fast-enumeration is about four times faster, about 0.0001, which if scaled to 100000 objects can be much, much … Read more
Download XCode 7. Apple has changed its policy regarding permissions required to build and run apps on devices. Until now, Apple required users to pay $99/year to become a member of Apple’s Developer Program in order to run code on physical iPhone and iPads. As part of the new Developer Program, this is no longer … Read more
You say 10,000 but you write 1000, here is what I would do for 1000: if (counter % 1000 == 0) { //Do something. } For 10,000 do: if (counter % 10000 == 0) { //Do something. } solved ‘do something’ every time a counter increase of 1000 [closed]
Are you trying to assign that to an Int? Because if so, 13.5 will be truncated to exactly 13. Make sure all your variables are floating point numbers, not integers. 0 solved How to do 10.1 + 3.4 ? (But the result is 13) [closed]
if([_txt_username.text isEqual:@”rotanet”] && [_txt_username.text isEqual:@”rotanet”]){ UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@”Storyboard” bundle:nil]; ViewController* viewController = [storyboard instantiateViewControllerWithIdentifier:@”ViewController”]; [self presentModalViewController: viewController animated: YES]; } 2 solved how to create login screen for iPhone Xcode [closed]