Sean Wolter seanwolter

love comptuer

seanwolter / prefix.pch

Last active December 13, 2015 17:29 — forked from MattFoley/gist:4945666

	#define screenHeight() ([UIScreen mainScreen].bounds.size.height)

	#define isPhoneFive() (screenHeight() == 568)

	#define isOS6() ([[[UIDevice currentDevice] systemVersion]intValue] > 5.2)

	#define UIInterfaceIdiomIsPad() (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)

	#define UIColorFromRGB(rgbValue) [UIColor \
	colorWithRed:((float)((rgbValue & 0xFF0000) >> 16))/255.0 \

seanwolter / gist:4549216

Created January 16, 2013 17:56

NSOperation queue very basic example

	// MyOperation.h
	@interface MyOperation : NSOperation
	@end

	// MyOperation.m
	@implementation MyOperation

	- (void)main {
	if ([self isCancelled]) {
	NSLog(@" operation cancelled ");

seanwolter / gist:4548690

Last active December 11, 2015 04:58

EXIF handling methods in a photo model object

	- (void)attachMetadata
	{
	DLog(@"EXIF data is %@",self.exifData);
	[self.exifData setObject:@1 forKey:@"Orientation"];

	NSData *jpeg = UIImageJPEGRepresentation(self.image, 1);
	CGImageSourceRef sourceRef = CGImageSourceCreateWithData((__bridge CFDataRef)jpeg, NULL);
	NSMutableData *dest_data = [NSMutableData data];
	CFStringRef UTI = CGImageSourceGetType(sourceRef);
	CGImageDestinationRef destination = CGImageDestinationCreateWithData((__bridge CFMutableDataRef)dest_data,UTI,1,NULL);

seanwolter / gist:4033585

Created November 7, 2012 18:50

convert a RFC3339 string to an NSDate you can use dateFromRFC3339String

	+ (NSDate )dateFromRFC3339String:(NSString )dateString
	{
	NSDate *date = nil;
	if (dateString) {
	NSDateFormatter *dateFormatter = [self internetDateTimeFormatter];

	NSString *RFC3339String = [[NSString stringWithString:dateString] uppercaseString];
	RFC3339String = [RFC3339String stringByReplacingOccurrencesOfString:@"Z" withString:@"-0000"];
	if (RFC3339String.length > 20) {
	RFC3339String = [RFC3339String stringByReplacingOccurrencesOfString:@":"

seanwolter / gist:4033240

Created November 7, 2012 17:56

crappy loop to get the last word of each line in a UITextView

	- (NSArray *)lastWordOfEachLine
	{
	NSMutableArray *wordArray = [@[] mutableCopy];
	UITextPosition *firstRowStart = self.myTextView.beginningOfDocument;
	UITextPosition *rowEnd = [self.myTextView.tokenizer positionFromPosition:firstRowStart
	toBoundary:UITextGranularityLine
	inDirection:UITextLayoutDirectionRight];

	BOOL done = NO;

seanwolter / gist:4033122

Created November 7, 2012 17:34

get the last word in a line UITextField


	UITextPosition *firstRowStart = self.myTextView.beginningOfDocument;
	UITextPosition *firstRowEnd = [self.myTextView.tokenizer positionFromPosition:firstRowStart
	toBoundary:UITextGranularityLine
	inDirection:UITextLayoutDirectionRight];

	NSString *lastWord = nil;
	while (!lastWord) {
	UITextRange *range = [self.myTextView.tokenizer rangeEnclosingPosition:firstRowEnd
	withGranularity:UITextGranularityWord