Rob Saunders rsaunders100
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| // View controller is a subclass of GLKViewController | |
| - (void)viewDidLoad | |
| { | |
| [super viewDidLoad]; | |
| self.eaglContext = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES2]; | |
| self.ciContext = [CIContext | |
| contextWithEAGLContext:self.eaglContext |
rsaunders100
/ gist:6160147
Created
August 5, 2013 22:25
Logs all unicode character with numeric value up to and including 2^16
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| + (void) logCharacterSet:(NSCharacterSet*)characterSet | |
| { | |
| unichar unicharBuffer[20]; | |
| int index = 0; | |
| for (unichar uc = 0; uc < (0xFFFF); uc ++) | |
| { | |
| if ([characterSet characterIsMember:uc]) | |
| { | |
| unicharBuffer[index] = uc; |
rsaunders100
/ ExampleUnitTest.m
Created
December 4, 2013 12:15
How to unit an objective C class with an async callback.
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| - (void)testAsyncExample | |
| { | |
| dispatch_semaphore_t semaphore = dispatch_semaphore_create(0); | |
| __block BOOL hasRunBlock = NO; | |
| [MyClass asyncCallback:^{ | |
| hasRunBlock = YES; | |
| dispatch_semaphore_signal(semaphore); | |
| }]; |
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| CFAbsoluteTime startTimeStamp = CFAbsoluteTimeGetCurrent(); | |
| <#code to time#> | |
| static NSTimeInterval smoothedTimeTaken = 0.0; | |
| NSTimeInterval timeTaken = (CFAbsoluteTimeGetCurrent() - startTimeStamp); | |
| if (smoothedTimeTaken == 0) smoothedTimeTaken = timeTaken; | |
| else smoothedTimeTaken = smoothedTimeTaken * 0.9 + timeTaken * 0.1; | |
| NSLog(@"Took %0.1f ms (smoothed) to <#name of task#>", smoothedTimeTaken * 1000); |
rsaunders100
/ gist:8436798
Created
January 15, 2014 14:03
To prevent application logic from interfering with unit tests.
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| static BOOL isRunningTests(void) __attribute__((const)); | |
| - (BOOL)application:(UIApplication *)application | |
| didFinishLaunchingWithOptions:(NSDictionary *)launchOptions | |
| { | |
| if (isRunningTests()) { | |
| return YES; | |
| } | |
| // |
rsaunders100
/ gist:8711151
Created
January 30, 2014 15:35
Wrap HTML with a given UIColor and UIFont
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| + (NSString *)htmlFromBodyString:(NSString *)htmlBodyString | |
| textFont:(UIFont *)font | |
| textColor:(UIColor *)textColor | |
| { | |
| int numComponents = CGColorGetNumberOfComponents([textColor CGColor]); | |
| NSAssert(numComponents == 4 || numComponents == 2, @"Unsupported color format"); | |
| // E.g. FF00A5 | |
| NSString *colorHexString = nil; |
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| // For NSString to NSDate to parse server dates in the full ISO 8601 format | |
| // E.g. 2014-02-11T10:22:46+00:00 | |
| + (NSDateFormatter *) iso8601FullDateFromatter | |
| { | |
| static NSDateFormatter * dateFormatter; | |
| static dispatch_once_t onceToken; | |
| dispatch_once(&onceToken, ^{ | |
| dateFormatter = [[NSDateFormatter alloc] init]; |
rsaunders100
/ gist:282a18b7d54d479ba13d
Last active
August 29, 2015 14:21
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| NSURL *url = [NSURL URLWithString:@"https://google.co.uk"]; | |
| NSURLRequest *request = [NSURLRequest requestWithURL:url]; | |
| NSError *error; | |
| [NSURLConnection sendSynchronousRequest:request | |
| returningResponse:nil | |
| error:&error]; | |
| NSLog(@"NSURLConnection error: %@", error.localizedDescription); | |
| [[[NSURLSession sharedSession] |
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