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How to compare two NSDates: Which is more recent?
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NSDate *retVal;
NSDateComponents *components = [[NSDateComponents alloc] init];
[components setDay:days];
NSCalendar *gregorian = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
retVal = [gregorian dateByAddingComponents:components toDate:self options:0];
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Adjust UILabel height depending on the text
...easing the height of the label.
A sample:
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UILabel *status = [[UILabel alloc] init];
status.lineBreakMode = NSLineBreakByWordWrapping;
status.numberOfLines = 5; // limits to 5 lines; use 0 for unlimited.
[self addSubview:status]; // self here is the parent view
status.preferredMaxLayoutWidth =...
Are delphi variables initialized with a value by default?
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Global variables that don't have an explicit initializer are allocated in the BSS section in the executable. They don't actually take up any space in the EXE; the BSS section is a special section that the OS allocates and clears to zero. On other operating systems, there are similar me...
Concatenating two std::vectors
... unless you've called std::vector::reserve(). Otherwise the vector will reallocate, invalidating the iterators passed as parameters 2 and 3.
– Drew Dormann
Jun 21 '12 at 20:30
30
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How to hide UINavigationBar 1px bottom line
...earance proxy:
[[UINavigationBar appearance] setBackgroundImage:[[UIImage alloc] init]
forBarPosition:UIBarPositionAny
barMetrics:UIBarMetricsDefault];
[[UINavigationBar appearance] setShadowImage:[[UIImage alloc] init]];
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Sort NSArray of date strings or objects
...escriptor as below:
NSSortDescriptor *sortDescriptor = [[NSSortDescriptor alloc] initWithKey:@"beginDate" ascending:TRUE];
[myMutableArray sortUsingDescriptors:[NSArray arrayWithObject:sortDescriptor]];
[sortDescriptor release];
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iOS 7 status bar back to iOS 6 default style in iPhone app?
...egate.h to make background a property in your class and prevent ARC from deallocating it. (You don't have to do it if you are not using ARC.)
After that you just need to create the UIWindow in if (NSFoundationVersionNumber > NSFoundationVersionNumber_iOS_6_1):
background = [[UIWindow alloc] ini...
Syntax for creating a two-dimensional array
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@Nawaz No, Arrays are Object in java and memory is allocated to Objects only by using new keyword.
– roottraveller
Jun 13 '17 at 9:40
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How do I pass a unique_ptr argument to a constructor or a function?
...d for the question as to why it is exception-safe (if during the recursive allocation process memory runs out and some call of new throws std::bad_alloc, then at that time a pointer to the partly constructed list is held anonymously in a temporary of type list created for the initialiser list, and i...
UITableView - change section header color
...wForHeaderInSection:(NSInteger)section
{
UIView *headerView = [[[UIView alloc] initWithFrame:CGRectMake(0, 0, tableView.bounds.size.width, 30)] autorelease];
if (section == integerRepresentingYourSectionOfInterest)
[headerView setBackgroundColor:[UIColor redColor]];
else
[headerVie...