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NSUserDefaults - How to tell if a key exists
...ine if it's defined NO or doesn't exist. I think you'd have to use – dictionaryRepresentation and check for the key.
– zekel
Feb 13 '12 at 20:13
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Creating a segue programmatically
...roller that all my UIViewsControllers extend to reuse some common operations.
13 Answers
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This IP, site or mobile application is not authorized to use this API key
...e this:
https://maps.googleapis.com/maps/api/place/nearbysearch/json?location=yourlatitude,yourlongitude&radius=5000&sensor=true&key=SERVERKEY
Now, to obtain the server key, just follow these steps:
1) Go to Developer Console https://code.google.com/apis/console/
2) In the Credential...
How do I sort an NSMutableArray with custom objects in it?
...ustom comparator-methods is possible as well. Have a look at the documentation.
Blocks (shiny!)
There's also the possibility of sorting with a block since Mac OS X 10.6 and iOS 4:
NSArray *sortedArray;
sortedArray = [drinkDetails sortedArrayUsingComparator:^NSComparisonResult(id a, id b) {
NS...
When should I release objects in -(void)viewDidUnload rather than in -dealloc?
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In addition to what has already been indicated, I wanted to elaborate more about logic behind -viewDidUnload.
One of the most important reasons for implementing it is that UIViewController subclasses commonly also contain owning r...
Obtain Bundle Identifier programmatically
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Swift 3.0
let bundleIdentifier = Bundle.main.bundleIdentifier
Xamarin.iOS
var bundleIdentifier = NSBundle.MainBundle.BundleIdentifier
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How do you create a Swift Date object?
...th = 7
dateComponents.day = 11
dateComponents.timeZone = TimeZone(abbreviation: "JST") // Japan Standard Time
dateComponents.hour = 8
dateComponents.minute = 34
// Create date from components
let userCalendar = Calendar.current // user calendar
let someDateTime = userCalendar.date(from: dateCompone...
Format a Go string without printing?
...rintf? S for string, f for format? It's odd that print is part of the function name if the function doesn't output to the screen. This has perplexed me for a while...
– jcollum
Apr 7 at 21:57
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Calculating days between two dates with Java
...me date2 = LocalDate.parse(inputString2, dtf);
long daysBetween = Duration.between(date1, date2).toDays();
System.out.println ("Days: " + daysBetween);
} catch (ParseException e) {
e.printStackTrace();
}
Note that this solution will give the number of actual 24 hour-days, not the numbe...
How to manage REST API versioning with spring?
I've been searching how to manage a REST API versions using Spring 3.2.x, but I haven't find anything that is easy to maintain. I'll explain first the problem I have, and then a solution... but I do wonder if I'm re-inventing the wheel here.
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