sdpjswl’s gists

sdpjswl / NSManagedObjectContext+Convenience.h

Created April 18, 2016 03:10

Helper methods for working with Core Data

	//
	// NSManagedObjectContext+Convenience.h
	// ResidentPortal
	//
	// Created by Prashant Patil on 18/06/14.
	// Copyright (c) 2014 Property Solutions. All rights reserved.
	//

	#import <CoreData/CoreData.h>
	#import <Foundation/Foundation.h>

sdpjswl / PEM files

Last active November 19, 2016 12:31

PEM files

	cert:
	openssl pkcs12 -clcerts -nokeys -out cert.pem -in cert.p12

	key:
	openssl pkcs12 -nocerts -nodes -out key.pem -in key.p12

	source:

	// node.js
	http://stackoverflow.com/questions/1762555/creating-pem-file-for-apns

sdpjswl / UIImage shadow

Created June 17, 2015 06:22

Add a shadow to a UIImage

	- (UIImage *)imageWithShadow {

	CGColorSpaceRef colourSpace = CGColorSpaceCreateDeviceRGB();
	CGFloat imageWidth = self.size.width;
	CGFloat imageHeight = self.size.height;

	CGContextRef shadowContext = CGBitmapContextCreate(NULL, imageWidth, imageHeight, CGImageGetBitsPerComponent(self.CGImage), 0, colourSpace, (CGBitmapInfo)kCGImageAlphaPremultipliedLast);
	CGColorSpaceRelease(colourSpace);

	CGContextSetShadowWithColor(shadowContext, CGSizeMake(1, -1), 3, [UIColor greenColor].CGColor);

sdpjswl / Resized cap image

Created June 11, 2015 08:41

Example of how to use "resizableImageWithCapInsets" method of UIImage

	- (void)setResizedImageNamed:(NSString *)imageName {
	UIEdgeInsets insets = UIEdgeInsetsMake(0, 50, 0, 5);
	UIImage *image = [UIImage imageNamed:imageName];
	UIImage *buttonImage = [image resizableImageWithCapInsets:insets];
	[button setBackgroundImage:buttonImage forState:UIControlStateNormal];
	}

sdpjswl / UIButton insets - Image and title side by side

Created June 11, 2015 08:39

	- (void)centerButtonAndImageWithSpacing:(CGFloat)spacing {
	CGFloat insetAmount = spacing / 2.0;
	self.imageEdgeInsets = UIEdgeInsetsMake(0, -insetAmount, 0, insetAmount);
	self.titleEdgeInsets = UIEdgeInsetsMake(0, insetAmount, 0, -insetAmount);
	self.contentEdgeInsets = UIEdgeInsetsMake(0, insetAmount, 0, insetAmount);
	}

sdpjswl / Execution time

Last active August 29, 2015 14:20

Handy macro to log method execution time

	declare private function in 'libdispatch':

	uint64_t dispatch_benchmark(size_t count, void (^block)(void));

	and use it like so:

	size_t const objectCount = 1000;
	uint64_t n = dispatch_benchmark(10000, ^{
	@autoreleasepool {
	id obj = @42;

sdpjswl / UILabel+PreferredWidth.h

Created April 28, 2015 11:30

Category to get preferred maximum layout width for multiline labels

	//
	// UILabel+PreferredWidth.h
	// GooglePlacesDemo
	//
	// Created by sudeep on 28/04/15.
	// Copyright (c) 2015 Sudeep Jaiswal. All rights reserved.
	//

	@import UIKit;

sdpjswl / Remove .DS_Store

Created April 15, 2015 04:59

Remove .DS_Store files from a directory

find . -name '*.DS_Store' -type f -delete

sdpjswl / CALayer+IBColor.h

Created April 11, 2015 10:32

Set border and shadow color with runtime attributes on xib / storyboard

	//
	// CALayer+IBColor.h
	// FunWithRuntimeAttributes
	//
	// Created by Mike Woelmer on 5/13/14.
	// Copyright (c) 2014 atomicobject. All rights reserved.
	//

	@import UIKit;
	@import QuartzCore;

sdpjswl / UIImage+Colorize.h

Last active August 29, 2015 14:18

Replace color of a UIImage with another color

	//
	// UIImage+Colorize.h
	// Coderwall
	//
	// Created by Coderwall on 11/04/15.
	// Copyright (c) 2015 Coderwall. All rights reserved.
	//

	#import <UIKit/UIKit.h>

Sudeep sdpjswl