Skip to content

Instantly share code, notes, and snippets.

View Azuritul's full-sized avatar

Wu Azuritul

  • Azuritul Studio
  • Tokyo
View GitHub Profile
@JeOam
JeOam / Animation.md
Last active March 14, 2025 01:34
iOS Core Animation: Advanced Techniques, Part 1: The Layer Beneath

Author: https://www.cyanhall.com/

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:

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
# set these environment variables
#
# PACKAGE_NAME=my-awesome-app
# BUNDLE_IDENTIFIER=com.example.myapp
# MASTER_JENKINS=http://com.example.jenkins:8080
# LOGO_IMG_URL=http://img.example.com/logo.png
############
DIST_URL=${MASTER_JENKINS}/job/${JOB_NAME}/${BUILD_NUMBER}/artifact
DIST_URL_ESC=`echo $DIST_URL | sed 's/=/%3d/g'`
@iwasrobbed
iwasrobbed / gist:5528897
Last active June 5, 2020 20:34
UICollectionView w/ NSFetchedResultsController & NSBlockOperation. Idea originated from Blake Watters (https://github.com/AshFurrow/UICollectionView-NSFetchedResultsController/issues/13)
- (void)controllerWillChangeContent:(NSFetchedResultsController *)controller
{
self.shouldReloadCollectionView = NO;
self.blockOperation = [[NSBlockOperation alloc] init];
}
- (void)controller:(NSFetchedResultsController *)controller didChangeSection:(id<NSFetchedResultsSectionInfo>)sectionInfo
atIndex:(NSUInteger)sectionIndex forChangeType:(NSFetchedResultsChangeType)type
{
__weak UICollectionView *collectionView = self.collectionView;
@mcantrell
mcantrell / displaytag.properties
Created November 17, 2012 22:37
Bootstrap Pagination with DisplayTag
paging.banner.placement=top
paging.banner.all_items_found=
paging.banner.some_items_found=
paging.banner.one_item_found=
paging.banner.no_items_found=
paging.banner.onepage=
paging.banner.first=<div class="pagination pagination-right"><ul><li class="disabled"><span>First</span></li>{0}<li><a href="{4}">Last</a></li></ul></div>
paging.banner.full=<div class="pagination pagination-right"><ul><li><a href="{1}">First</a></li>{0}<li><a href="{4}">Last</a></li></ul></div>
paging.banner.last=<div class="pagination pagination-right"><ul><li><a href="{1}">First</a></li>{0}<li class="disabled"><span>Last</span></li></ul></div>
paging.banner.page.link=<li><a href="{1}">{0}</a></li>
@sekati
sekati / xcode-build-bump.sh
Created July 24, 2012 20:44
Xcode Auto-increment Build & Version Numbers
# xcode-build-bump.sh
# @desc Auto-increment the build number every time the project is run.
# @usage
# 1. Select: your Target in Xcode
# 2. Select: Build Phases Tab
# 3. Select: Add Build Phase -> Add Run Script
# 4. Paste code below in to new "Run Script" section
# 5. Drag the "Run Script" below "Link Binaries With Libraries"
# 6. Insure that your starting build number is set to a whole integer and not a float (e.g. 1, not 1.0)
@bradland
bradland / gencert.sh
Created January 27, 2012 20:39
Generate a self-signed SSL cert
#!/bin/bash
# Bash shell script for generating self-signed certs. Run this in a folder, as it
# generates a few files. Large portions of this script were taken from the
# following artcile:
#
# http://usrportage.de/archives/919-Batch-generating-SSL-certificates.html
#
# Additional alterations by: Brad Landers
# Date: 2012-01-27
@Jaybles
Jaybles / UIDeviceHardware.h
Created October 28, 2011 19:33
UIDeviceHardware - Determine iOS device being used
//
// UIDeviceHardware.h
//
// Used to determine EXACT version of device software is running on.
#import <Foundation/Foundation.h>
@interface UIDeviceHardware : NSObject
- (NSString *) platform;
@cdown
cdown / gist:1163649
Last active July 7, 2025 00:58
Bash urlencode and urldecode
urlencode() {
# urlencode <string>
old_lc_collate=$LC_COLLATE
LC_COLLATE=C
local length="${#1}"
for (( i = 0; i < length; i++ )); do
local c="${1:$i:1}"
case $c in
@jonah-williams
jonah-williams / build.sh
Created April 30, 2011 17:46
Command line iOS project builds and over-the-air distribution
#!/bin/bash
# https://gist.github.com/949831
# http://blog.carbonfive.com/2011/05/04/automated-ad-hoc-builds-using-xcode-4/
# command line OTA distribution references and examples
# http://nachbaur.com/blog/how-to-automate-your-iphone-app-builds-with-hudson
# http://nachbaur.com/blog/building-ios-apps-for-over-the-air-adhoc-distribution
# http://blog.octo.com/en/automating-over-the-air-deployment-for-iphone/
# http://www.neat.io/posts/2010/10/27/automated-ota-ios-app-distribution.html