ddrscott’s gists

ddrscott / any_controller.rb

Created January 25, 2013 17:51

How to free up the ns_data (NSMutableData) object? Even though I'm aways overwriting the @image_view.image, resources are not getting freed. If I try calling CG*Release methods, I get other crashes. Every to on_click_test_a is called 60 mb will be leaked.

	def viewWillAppear
	unless @image_view
	@image_view = UIImageView.alloc.initWithFrame([[0,0],[200,200]])
	@image_view.contentMode = UIViewContentModeScaleAspectFit
	@image_view.backgroundColor = UIColor.blackColor
	@image_view.center = view.center
	view.addSubview @image_view

	if self.navigationController
	@test_a_button = UIBarButtonItem.alloc.initWithTitle('Test', style: UIBarButtonItemStylePlain, target: self, action: :on_click_test_a)

ddrscott / QuickDialog-0.7.podspec

Last active December 13, 2015 16:59

RubyMotion parser crash. env => OSX 10.8.2, RubyMotion 1.32, Xcode 4.6

	Pod::Spec.new do \|s\|
	s.name = 'QuickDialog'
	s.version = '0.7'
	s.platform = :ios
	s.license = 'Apache License, Version 2.0'
	s.summary = 'Quick and easy dialog screens for iOS.'
	s.homepage = 'http://escoz.com/quickdialog'
	s.author = { 'Eduardo Scoz' => '[email protected]' }
	s.source = { :git => 'https://github.com/escoz/QuickDialog.git', :tag => '0.7' }

ddrscott / lifo_queue.rb

Created February 14, 2013 21:03

A simple last in - first out queue for RubyMotion. I feel like it should be harder than this...

	class LifoQueue

	def initialize(name, depth)
	raise ArgumentError, "depth must be a number greater than zero" unless Fixnum === depth and depth > 0
	super

	@depth = depth
	@stack = []
	@mutex = Mutex.new
	@queue = Dispatch::Queue.send :new, name

ddrscott / ansi_sample.rb

Created February 20, 2013 03:40

cribbed from http://www.ioncannon.net/ruby/101/fun-with-ansi-escape-codes/

	#!/usr/bin/ruby
	printf "\033[0mAll attributes off\033[0m\n"
	printf "\033[1mBold\033[0m\n"
	printf "\033[4mUnderline\033[0m\n"
	printf "\033[5mBlink\033[0m\n"
	printf "\033[8mHide\033[0m\n"
	printf "\033[30mBlack\033[0m\n"
	printf "\033[31mRed\033[0m\n"
	printf "\033[32mGreen\033[0m\n"
	printf "\033[33mYellow\033[0m\n"

ddrscott / Rakefile

Created February 26, 2013 19:39 — forked from adelevie/Rakefile

	app.libs << '/usr/lib/libz.1.1.3.dylib'
	app.libs << '/usr/lib/libsqlite3.dylib'
	app.frameworks += [
	'AudioToolbox',
	'Accounts',
	'AdSupport',
	'CFNetwork',
	'CoreGraphics',
	'CoreLocation',
	'MobileCoreServices',

ddrscott / parse_test.mm

Last active December 14, 2015 07:19

Using Parse.com API, how to save and retrieve an object in offline mode?

	- testOffline {
	// Important! do all methods without Network
	PFObject *todo1 = [PFObject objectWithClassName:@"Todo"];
	[todo1 setObject:@"Learn Parse API" forKey:@"text"];
	[todo1 saveEventually];

	PFObject *todo2 = [PFObject objectWithClassName:@"Todo"];
	[todo2 setObject:@"Implement iOS" forKey:@"text"];
	[todo2 saveEventually];

ddrscott / layouts.rb

Last active December 14, 2015 23:08

RubyMotion UIBarButtonItem Helper

	# Example:
	# self.navigationItem.leftBarButtonItems = [
	# ui_bar_button_item('1'){App.alert('One')},
	# ui_bar_button_item('2'){App.alert('Two')}
	# ]
	def ui_bar_button_item(title, &block)
	item = UIBarButtonItem.alloc.initWithTitle(title, style: UIBarButtonItemStylePlain, target: block, action: :call)
	item.instance_variable_set('@_target', block) # retain
	item
	end

ddrscott / moon_spinner.rb

Created April 8, 2013 18:13

Rotating phases of the moon using Emoji.

	# -- coding: utf-8 --

	# phases = %w{🌑 🌒 🌓 🌔 🌕 🌖 🌗 🌘}
	phases = (0x1F311..0x1F318).to_a.collect{\|c\| [c].pack('U*')}
	clear_line = "\r\e[0K"

	1000.times do \|i\|
	phase = phases[i % phases.size]
	print "#{clear_line} #{phase}\t#{i} #{phase.unpack('U*').map{ \|i\| "\\u" + i.to_s(16).rjust(4, '0') }.join}"
	sleep rand / 10.0

ddrscott / xe_scrape.rb

Created April 19, 2013 17:49

scrape xe.com using Ruby and Nokogiri

	api_url = "http://www.xe.com/currencytables/?from=USD&date=#{Time.now.strftime('%Y-%m-%d')}"
	doc = Nokogiri(open(api_url))
	rows = doc.search('#historicalRateTbl tr')
	rows.shift # disgard header

	currencies = {}
	while row = rows.shift
	currency = row.children[0].inner_text
	rate_to_us = row.children[2].inner_text
	# rate_from_us = row.children[3].inner_text

ddrscott / letters.rb

Created April 15, 2014 05:18

My son wanted to see colorful letters. This is what I came up with. He actually stayed awake as I type it. It was originally a one liner done in IRB.

	az=("A".."z").to_a.map {\|m\|
	"\033[38;5;#{rand(180)+16}m#{m}\033[0m" # wrap char in random color
	}
	loop {
	puts [az" "] 25 # fill some of the screen
	az<<(az.shift) # rotate chars
	sleep(0.3) # slow down
	puts "\e[26F" # cursor up 26 lines
	}

Scott Pierce ddrscott