matnogaj’s gists

matnogaj / NSObject+IsNull.h

Last active August 29, 2015 14:02

NSObject+IsNull : check for nil and NSNull with one method

	#import <Foundation/Foundation.h>

	@interface NSObject (IsNull)

	- (BOOL)isNull;
	- (BOOL)isNotNull;

	@end

matnogaj / NSString+Compare.h

Last active August 29, 2015 14:02

Compare strings even if one of them is nil or NSNull

	@interface

	+ (BOOL)compareStringA:(NSString )A andB:(NSString )B;

	@end

matnogaj / gist:1f63f2f27bc724967521

Created October 7, 2014 07:47

CIFilter example

	+ (UIImage )something:(COProductCollectionViewCell )view {
	static EAGLContext *myEAGLContext;
	static NSDictionary *options;
	static CIContext *myContext;

	static dispatch_once_t onceToken;
	dispatch_once(&onceToken, ^{
	myEAGLContext = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES2];
	options = @{ kCIContextWorkingColorSpace : [NSNull null] };

matnogaj / Perspective rotation

Created January 16, 2015 13:22

	- (CATransform3D)perspectiveTransformForProgress:(CGFloat)progress {
	CATransform3D rotationAndPerspectiveTransform = CATransform3DIdentity;

	rotationAndPerspectiveTransform = CATransform3DTranslate(rotationAndPerspectiveTransform, progress * [self menuWidth], 0.0f, 0.0f);

	float scale = 1.0f - ((1.0f - kPerspectiveScale) * progress);
	rotationAndPerspectiveTransform = CATransform3DScale(rotationAndPerspectiveTransform, scale, scale, 1.0f);

	rotationAndPerspectiveTransform.m34 = (1.0f * kPerspectiveDistortionStrength) / -1000.0f;
	rotationAndPerspectiveTransform = CATransform3DRotate(rotationAndPerspectiveTransform,

matnogaj / active architecture only

Created January 30, 2015 10:39

Setting project to build only active arch to NO during pods update

	post_install do \|installer_representation\|
	installer_representation.project.targets.each do \|target\|
	target.build_configurations.each do \|config\|
	config.build_settings['ONLY_ACTIVE_ARCH'] = 'NO'
	end
	end
	end

matnogaj / UIView+AnimatedConstraints.swift

Last active April 16, 2016 15:27

Change constraints and then call this method.

	extension UIView {
	func animateConstraints(animation:(()->())? = nil, completion:(()->())? = nil) {
	setNeedsUpdateConstraints()
	UIView.animateWithDuration(0.3,
	animations: {
	animation?()
	self.layoutIfNeeded()
	}) { _ in
	completion?()
	}

matnogaj / gist:53b737aa3ad3e51d4f24

Created December 16, 2015 12:18

[Typhoon] Test assembly for testing

	@implementation IntegrationTestUtils

	+ (TyphoonComponentFactory*)testAssembly
	{
	TyphoonComponentFactory* factory = [[TyphoonBlockComponentFactory alloc] initWithAssemblies:@[
	[MyAppAssembly assembly],
	[MyAppKernel assembly],
	[MyAppNetworkComponents assembly],
	[MyAppPersistenceComponents assembly]
	]];

matnogaj / picker.swift

Last active March 14, 2022 05:58

Custom date picker with "infinite" hours and minutes


	import UIKit

	@objc protocol CustomDatePickerSourceDelegate:NSObjectProtocol {
	func datePickerDidSelectDate(date:NSDate)
	}

	@objc class CustomDatePickerSource: NSObject {

	enum Component:Int {

matnogaj / NSDateFormatter+Cache.swift

Created February 13, 2016 00:01

NSDateFormatter cache

	import Foundation

	extension NSDateFormatter {
	private static var cache:[String:NSDateFormatter] = [:]

	static func dateFormatterForKey(key:String, initialize:((NSDateFormatter)->())? = nil) -> NSDateFormatter {
	if let formatter = NSDateFormatter.cache[key] {
	return formatter
	} else {
	let formatter = NSDateFormatter()

matnogaj / NSNumberFormatter+Cache.swift

Created February 13, 2016 00:15

NSNumberFormatter+Cache

	extension NSNumberFormatter {
	private static var cache:[String:NSNumberFormatter] = [:]

	static func numberFormatterForKey(key:String, initialize:((NSNumberFormatter)->())? = nil) -> NSNumberFormatter {
	if let formatter = NSNumberFormatter.cache[key] {
	return formatter
	} else {
	let formatter = NSNumberFormatter()
	NSNumberFormatter.cache[key] = formatter
	initialize?(formatter)

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