andrew stoeckley

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

Transparent Git Encryption

This document has been modified from its [original format][m1], which was written by Ning Shang ([email protected]). It has been updated and reformatted into a [Markdown][m2] document by [Woody Gilk][m3] and [republished][m4].

Description

When working with a remote git repository which is hosted on a third-party storage server, data confidentiality sometimes becomes

	port module Main exposing (..)

	import Html exposing (Html, text, program)
	import Html.Events exposing (on)
	import Html.Attributes exposing (type_, src)
	import Json.Decode as Decode exposing (Value, Decoder)


	port readImage : Value -> Cmd msg

	#import <UIKit/UIKit.h>
	#import <ImageIO/ImageIO.h>
	#import <MobileCoreServices/MobileCoreServices.h>

	static UIImage *frameImage(CGSize size, CGFloat radians) {
	UIGraphicsBeginImageContextWithOptions(size, YES, 1); {
	[[UIColor whiteColor] setFill];
	UIRectFill(CGRectInfinite);
	CGContextRef gc = UIGraphicsGetCurrentContext();
	CGContextTranslateCTM(gc, size.width / 2, size.height / 2);

	#!/bin/bash

	# Ease staging of files

	for i in $(git status \| grep -A 10000 "not updated" \| grep modified) ; do
	if [ -f $i ] ; then
	git diff $i;
	echo -n "Add this to stage? [y/n]: ";
	read ans;
	if [ "$ans" == "y" ] ; then

	{-# LANGUAGE OverloadedStrings #-}

	module Main where

	import Text.Parsec
	import Text.Parsec.String
	import Text.Parsec.Char
	import Control.Monad
	import Data.List
	import Data.Either

	#!/bin/bash

	# This script builds the iOS and Mac openSSL libraries with Bitcode enabled
	# Download openssl http://www.openssl.org/source/ and place the tarball next to this script

	# Credits:
	# https://github.com/st3fan/ios-openssl
	# https://github.com/x2on/OpenSSL-for-iPhone/blob/master/build-libssl.sh
	# Peter Steinberger, PSPDFKit GmbH, @steipete.
	# Doron Adler, GlideTalk, @Norod78

	OVERVIEW: LLVM 'Clang' Compiler: http://clang.llvm.org

	USAGE: clang -cc1 [options] <inputs>

	OPTIONS:
	-### Print the commands to run for this compilation
	--analyze Run the static analyzer
	--migrate Run the migrator
	--relocatable-pch Build a relocatable precompiled header
	--serialize-diagnostics <value>

	#############################################################
	# #
	# Generic Makefile for C++ projects #
	# Author: Gabriel <[email protected]> #
	# Date: 2014-04-18 #
	# Version: 1.0 #
	# #
	#############################################################

	#ifndef SSVU_FASTFUNC
	#define SSVU_FASTFUNC

	#include <cstring>
	#include <type_traits>
	#include <cassert>
	#include <cstddef>
	#include <memory>
	#include <new>
	#include <utility>