Anish Chand yoterpa

for devices without retina:

ImageName.png - For iPhone/iPod
ImageName~ipad.png -- For iPad

For devices with retina display:

ImageName@2x.png - For iPhone/iPod
ImageName@2x~ipad.png -- For iPad

Select your Project Target in your xcode, then select Product option, in which you could select Archive option.
Then a new window would open up and in that window select the Export option.
Then a pop up will come as below and select second option Save to ad-hoc deployment.

best approach is the old-fashioned way. Create images for each size with names like test-667 and do something like:

[UIImage imageNamed:[NSString stringWithFormat:@"test-%g", [[UIScreen mainScreen] bounds].size.height]]

UIViewController's method invoke sequence is as below

awakeFromNib
viewDidLoad
viewWillAppear
viewWillLayoutSubviews
viewDidLayoutSubviews
viewDidAppear

https://solarianprogrammer.com/2012/03/07/starting-gnu-sed-mac-osx/

([\d]+), \1((?:\W|$))

^    : Start anchor
(    : Start of capturing group
 \w+ : A word
)    : End of capturing group
\s+  : One or more whitespace
\1   : Back reference to the first word
\b : Word boundary

The corrent order of arguments

g++ -o test test.cpp pkg-config --cflags --libs opencv

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib

	UIBarButtonItem *flexibleSpace = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];

	UIBarButtonItem *item1 = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonItemStylePlain target:self action:@selector(item1Action:)];

	UIBarButtonItem *item2 = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonItemStylePlain target:self action:@selector(item2Action:)];

	NSArray *toolbarItems = [NSArray arrayWithObjects:item1, flexibleSpace, item2];

	[toolBar setItems:toolbarItems animated:NO];

	// Create a sample URL.
	NSURL *url = [NSURL URLWithString:@"http://www.bbc.co.uk/tv/programmes/genres/drama/scifiandfantasy/schedules/upcoming.json"];

	// Create a download task.
	NSURLSessionDataTask *task = [[NSURLSession sharedSession] dataTaskWithURL:url
	completionHandler:^(NSData *data,
	NSURLResponse *response,
	NSError *error)
	{
	if (!error)

	// Logging Macros

	#ifdef DEBUG
	# define DLog(FORMAT, ...) printf("%s %s ~ %s\n", [[[NSDate date] description] UTF8String], __PRETTY_FUNCTION__, [[NSString stringWithFormat:FORMAT, ##__VA_ARGS__] UTF8String])
	#else
	# define DLog(...)
	#endif

	// ALog always displays output regardless of the DEBUG setting
	#define ALog(FORMAT, ...) printf("%s %s ~ %s\n", [[[NSDate date] description] UTF8String], __PRETTY_FUNCTION__, [[NSString stringWithFormat:FORMAT, ##__VA_ARGS__] UTF8String])