mikekatz’s gists

mikekatz / easingcurve.swift

Created November 14, 2019 10:22

Get the values in order to plot animation curves for any SwiftUI animation

	// created Michael Katz November 2019
	// MIT licensed

	import SwiftUI

	struct ContentView: View {
	@State var start: Bool = false

	var animationToExplore: Animation {
	// replace this animation with the animation you want to graph

mikekatz / gist:5263150

Created March 28, 2013 13:34

Configurable log redirect

	//the log manager's log method. Each log channel formats its message and then sends the whole string to this method

	- (void) log:(NSString*)message
	{
	if (self.logSink == nil) {
	NSLog(@"%@", message);
	} else {
	[self.logSink log:message];
	}
	}

mikekatz / gist:5224025

Created March 22, 2013 19:27

Debugging Log macros from a PCH of a recent app. Note that it uses TFLog to log to testFlight, so this is still for in-test, not app store release.

	#if DEBUG
	#define AssertLog(condition, desc, args...) NSAssert(condition, desc, ## args)
	#define DBLog(format, args...) TFLog(@"%s, line %d: " format "\n", __func__, __LINE__, ## args);
	#else
	#define AssertLog(c, desc, args...) if (!(c)) TFLog(@"%s, line %d: " desc "\n", __func__, __LINE__, ## args);
	#define DBLog(format, args...) do {} while(0)
	#endif

mikekatz / gist:5187639

Created March 18, 2013 14:43

Log all available fonts in iOS

	for (NSString* familyName in [UIFont familyNames]) {
	NSLog(@"%@",[UIFont fontNamesForFamilyName:familyName]);
	}

mikekatz / gist:4708775

Created February 4, 2013 19:05

Create a simple colored square image. From my UI utils repo https://github.com/mikekatz/iOS-UI-Utils

	+ (UIImage) imageWithColor:(UIColor)color size:(CGSize)size
	{
	UIGraphicsBeginImageContext(size);
	UIBezierPath* rPath = [UIBezierPath bezierPathWithRect:CGRectMake(0., 0., size.width, size.height)];
	[color setFill];
	[rPath fill];
	UIImage* image = UIGraphicsGetImageFromCurrentImageContext();
	UIGraphicsEndImageContext();
	return image;
	}

mikekatz / gist:4550441

Last active December 11, 2015 05:09

Test asynchronous code with OCUnit, this time with a the polling code in a macro

	#define POLL_INTERVAL 0.05 //50ms
	#define N_SEC_TO_POLL 1.0 //poll for 1s
	#define MAX_POLL_COUNT N_SEC_TO_POLL / POLL_INTERVAL

	#define CAT(x, y) x ## y
	#define TOKCAT(x, y) CAT(x, y)
	#define __pollCountVar TOKCAT(__pollCount,__LINE__)

	#define POLL(__done) \
	NSUInteger __pollCountVar = 0; \

mikekatz / gist:4550430

Created January 16, 2013 20:10

Example of writing an OCUnit test that uses asynchronous methods by polling for completion

	#define POLL_INTERVAL 0.05 //50ms
	#define N_SEC_TO_POLL 1.0 //poll for 1s
	#define MAX_POLL_COUNT N_SEC_TO_POLL / POLL_INTERVAL

	- (void) testAnAsynchronousFunction
	{
	__block BOOL done = NO;

	//do async on a delay
	float delayInSeconds = 0.5;

mikekatz / gist:3722237

Created September 14, 2012 14:28

Kinvey fetch entity with relationships

	KCSCollection* books = [KCSCollection collectionFromString:@"books" ofClass:[Book class]];
	KCSLinkedAppdataStore* store = [KCSLinkedAppdataStore storeWithCollection:books options:nil];

	[store loadObjectWithId:@"HPBook6" withCompletionBlock:^(NSArray objectsOrNil, NSError errorOrNil) {
	Book* harryPotter = [objectsOrNil objectAtIndex:0];
	Author* jRowling = harryPotter.author;
	} withProgressBlock:^(NSArray *objects, double percentComplete) {
	//show progress
	}];

mikekatz / gist:3722148

Created September 14, 2012 14:14

Kinvey Supply Mapping for relationship

	//books.h
	@interface Book : NSObject <KCSPersistable>
	@property (nonatomic) Author* author;
	@property (nonatomic) NSString* title;
	@end

	//books.m
	@implementation Book
	+(NSDictionary *)kinveyPropertyToCollectionMapping {
	return @{@"author" : @"authors"};

mikekatz / gist:3040629

Created July 3, 2012 15:53

Creating a KCSCachedStore and using it for query

	- (id) init
	{
	if (self = [super init]) {
	self.tableValues = [NSArray array];
	}
	return self;
	}

	- (void) viewWillAppear:(BOOL)animated
	{

Michael Katz mikekatz