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View locale.swift
let c = try NSString(contentsOfFile: path, encoding: CFStringConvertEncodingToNSStringEncoding(0x0422))
} catch {
dsdstudio / Apple_mobile_device_types.txt
Created Dec 22, 2019 — forked from adamawolf/Apple_mobile_device_types.txt
List of Apple's mobile device codes types a.k.a. machine ids (e.g. `iPhone1,1`, `Watch1,1`, etc.) and their matching product names
View Apple_mobile_device_types.txt
i386 : iPhone Simulator
x86_64 : iPhone Simulator
iPhone1,1 : iPhone
iPhone1,2 : iPhone 3G
iPhone2,1 : iPhone 3GS
iPhone3,1 : iPhone 4
iPhone3,2 : iPhone 4 GSM Rev A
iPhone3,3 : iPhone 4 CDMA
iPhone4,1 : iPhone 4S
iPhone5,1 : iPhone 5 (GSM)
dsdstudio /
Created Nov 30, 2019
jwt token create and validation
import com.auth0.jwt.JWT;
import com.auth0.jwt.JWTVerifier;
import com.auth0.jwt.algorithms.Algorithm;
import com.auth0.jwt.interfaces.DecodedJWT;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.util.Date;
class Scratch {
dsdstudio /
Created May 14, 2019
jooq jpa entity로 부터 뽑아내기
import org.jooq.codegen.DefaultGeneratorStrategy;
import org.jooq.meta.Definition;
public class JQPrefixGeneratorStrategy extends DefaultGeneratorStrategy {
public String getJavaClassName(Definition definition, Mode mode) {
return "JQ" + super.getJavaClassName(definition, mode);
dsdstudio / ff2cv.cpp
Created Feb 23, 2019 — forked from yohhoy/ff2cv.cpp
Read video frame with FFmpeg and convert to OpenCV image
View ff2cv.cpp
* Read video frame with FFmpeg and convert to OpenCV image
* Copyright (c) 2016 yohhoy
#include <iostream>
#include <vector>
// FFmpeg
extern "C" {
#include <libavformat/avformat.h>
dsdstudio /
Last active Oct 19, 2018
Rails request body gzip deflate

Rails5.x config/initializers/mime_types.rb

Mime::Type.register "gzip/json", :gzipjson

ActionDispatch::Http::Parameters::DEFAULT_PARSERS[:gzipjson] = lambda do |raw_body|
  body = ActiveSupport::Gzip.decompress(raw_body)
dsdstudio /
Created Oct 13, 2018 — forked from steve-jansen/
Stop and start Symantec Endpoint Protection on OS X

This script enables you stop and start Symantec Endpoint Protection on OS X


sudo curl -o /usr/local/bin/sep
sudo chmod 755 /usr/local/bin/sep
sudo chown root:staff /usr/local/bin/sep
View url-schemes-settings-ios.mkd


Apple will reject apps that are using private url schemes (Ugh, Apple....) if they are pretty much obvius. Some apps are rejected and others are not, so, be aware of this issue before implementing any of those URL's in your app as a feature.


  • [UPDATE 4] iOS 10 update: apparently settings now can be reached using App-Pref instead of prefs
  • [UPDATE 3] For now you just can use url schemes to open your apps's settings with Swift 3.0 (Xcode 8). I'll keep you informed when OS preferences can be reached
  • [UPDATE 2] The openURL() method of UIApplication is now deprecated. You should use application(_:open:options:) instead
  • [UPDATE 1] Not yet tested in iOS 10. It will fail because of policies changes in URL scheme handling.

Generic 1,2,3 Noise

float rand(float n){return fract(sin(n) * 43758.5453123);}

float noise(float p){
	float fl = floor(p);
  float fc = fract(p);
	return mix(rand(fl), rand(fl + 1.0), fc);
dsdstudio /
Created Sep 25, 2017 — forked from JeOam/
iOS Core Animation: Advanced Techniques, Part 1: The Layer Beneath

1. The Layer Tree

Core Animation's original name is Layer Kit

Core Animation is a compositing engine; its job is to compose different pieces of visual content on the screen, and to do so as fast as possible. The content in question is divided into individual layers stored in a hierarchy known as the layer tree. This tree forms the underpinning for all of UIKit, and for everything that you see on the screen in an iOS application.

In UIView, tasks such as rendering, layout and animation are all managed by a Core Animation class called CALayer. The only major feature of UIView that isn’t handled by CALayer is user interaction.

There are four hierarchies, each performing a different role:

  • view hierarchy
  • layer tree