Skip to content

Instantly share code, notes, and snippets.

View SoundBlaster's full-sized avatar

Egor Merkushev SoundBlaster

14 followers · 6 following
View GitHub Profile
@andrey-skl
andrey-skl / Readme.md
Last active October 9, 2019 13:42
How to compile and run react-native application from terminal

To run on ios:

  1. Install XCode (recommended) or XCode command line tools by xcode-select --install
  2. Into XCode settings, go to "Downloads" tab and download iOS 9.2 emulator
  3. Compile native app and run it on simulator via npm run ios

To run on Android:

  1. Set up Android environment
  2. Create emulator via npm run android-emulator-create
  3. Run emulator via npm run android-emulator
  4. Compile native code and run it on emulator via npm run android
@robertjpayne
robertjpayne / RCTSwiftBridgeModule.h
Last active January 17, 2024 11:43
React Native - Swift Native Modules
#import <Foundation/Foundation.h>
#import "RCTBridgeModule.h"
#define RCT_EXTERN_MODULE(objc_name, objc_supername) \
RCT_EXTERN_REMAP_MODULE(objc_name, objc_name, objc_supername)
#define RCT_EXTERN_REMAP_MODULE(js_name, objc_name, objc_supername) \
objc_name : objc_supername \
@end \
@interface objc_name (RCTExternModule) <RCTBridgeModule> \
@jstn
jstn / Timer.swift
Last active June 19, 2022 15:14
simple nanosecond timer using mach_absolute_time
/*
var t = Timer()
t.start()
// do something
t.stop()
print("took \(t.seconds)")
*/
@nicklockwood
nicklockwood / Hacking UIView Animation Blocks.md
Last active August 24, 2024 17:08
This article was originally written for objc.io issue 12, but didn't make the cut. It was intended to be read in the context of the other articles, so if you aren't familiar with concepts such as CALayer property animations and the role of actionForKey:, read the articles in that issue first.

Hacking UIView animation blocks for fun and profit

In this article, I'm going to explore a way that we can create views that implement custom Core Animation property animations in a natural way.

As we know, layers in iOS come in two flavours: Backing layers and hosted layers. The only difference between them is that the view acts as the layer delegate for its backing layer, but not for any hosted sublayers.

In order to implement the UIView transactional animation blocks, UIView disables all animations by default and then re-enables them individually as required. It does this using the actionForLayer:forKey: method.

Somewhat strangely, UIView doesn't enable animations for every property that CALayer does by default. A notable example is the layer.contents property, which is animatable by default for a hosted layer, but cannot be animated using a UIView animation block.

@bimawa
bimawa / UIImage+fixBugs
Created February 26, 2014 09:36
FixRotation method for UIImage.
- (UIImage *)fixRotation:(UIImage *)image
{
if (image.imageOrientation == UIImageOrientationUp)
{
return image;
}
CGAffineTransform transform = CGAffineTransformIdentity;
switch (image.imageOrientation)
{
@gdavis
gdavis / gist:6670468
Last active November 9, 2024 08:57
Xcode Build Variables List. Adopted from: http://stackoverflow.com/questions/6910901/canonical-list-of-xcode-environment-variables
ACTION
AD_HOC_CODE_SIGNING_ALLOWED
ALTERNATE_GROUP
ALTERNATE_MODE
ALTERNATE_OWNER
ALWAYS_SEARCH_USER_PATHS
ALWAYS_USE_SEPARATE_HEADERMAPS
APPLE_INTERNAL_DEVELOPER_DIR
APPLE_INTERNAL_DIR
APPLE_INTERNAL_DOCUMENTATION_DIR
@andrei512
andrei512 / GIFLoader.h
Created October 15, 2012 19:53
GIFLoader - simple GIF support for iOS
//
// GIFLoader.h
// AnimatedGifExample
//
// Created by Andrei on 10/15/12.
// Copyright (c) 2012 Whatevra. All rights reserved.
//
#import <Foundation/Foundation.h>
@simX
simX / hidpi.txt
Created July 28, 2012 04:58
Enable HiDPI mode in Mountain Lion w/o Quartz Debug
sudo defaults write /Library/Preferences/com.apple.windowserver DisplayResolutionEnabled -bool YES;
sudo defaults delete /Library/Preferences/com.apple.windowserver DisplayResolutionDisabled;
// by the way, you need to logout and log back in for this to take effect. Or at least that's what
// Quartz Debug says. Who knows, maybe it's lying?
// P.S. Go to [Apple menu --> System Preferences --> Displays --> Display --> Scaled] after logging
// back in, and you'll see a bunch of "HiDPI" resolutions in the list to choose from.
@irae
irae / _Stay_standalone.md
Last active April 17, 2025 15:49 — forked from kylebarrow/example.html
Stay Standalone: Prevent links in standalone web apps opening Mobile Safari

#Stay Standalone

A short script to prevent internal links to a "webapp" added to iPhone home screen to open in Safari instead of navigating internally.

@kylebarrow
kylebarrow / example.html
Created June 23, 2011 06:30
Prevent links in standalone web apps opening Mobile Safari
<!DOCTYPE html>
<head>
<title>Stay Standalone</title>
<meta name="apple-mobile-web-app-capable" content="yes">
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no">
<script src="stay_standalone.js" type="text/javascript"></script>
</head>
<body>
<ul>
<li><a href="http://google.com/">Remote Link (Google)</a></li>