cromandini / universal-framework.sh

Last active September 13, 2025 02:41 — forked from cconway25/gist:7ff167c6f98da33c5352

This run script will build the iphoneos and iphonesimulator schemes and then combine them into a single framework using the lipo tool (including all the Swift module architectures).

	#!/bin/sh

	UNIVERSAL_OUTPUTFOLDER=${BUILD_DIR}/${CONFIGURATION}-universal

	# make sure the output directory exists
	mkdir -p "${UNIVERSAL_OUTPUTFOLDER}"

	# Step 1. Build Device and Simulator versions
	xcodebuild -target "${PROJECT_NAME}" ONLY_ACTIVE_ARCH=NO -configuration ${CONFIGURATION} -sdk iphoneos BUILD_DIR="${BUILD_DIR}" BUILD_ROOT="${BUILD_ROOT}" clean build
	xcodebuild -target "${PROJECT_NAME}" -configuration ${CONFIGURATION} -sdk iphonesimulator ONLY_ACTIVE_ARCH=NO BUILD_DIR="${BUILD_DIR}" BUILD_ROOT="${BUILD_ROOT}" clean build

subchen / git-stash.md

Created October 31, 2014 08:56

Git Stash 用法

git stash用于保存和恢复工作进度

git stash

保存当前的工作进度。会分别对暂存区和工作区的状态进行保存
git stash save "message..."

这条命令实际上是第一条 git stash 命令的完整版

anonymous / AVPlayerCaching.m

Created May 20, 2014 08:30

	//
	// ViewController.m
	// AVPlayerCaching
	//
	// Created by Anurag Mishra on 5/19/14.
	// Sample code to demonstrate how to cache a remote audio file while streaming it with AVPlayer
	//

	#import "ViewController.h"
	#import <AVFoundation/AVFoundation.h>

mralexgray / logProperties.m

Last active September 3, 2019 09:02

A concise category on NSObject to log all declared properties, pretty-like, using minimal SLOC.

	#import <objc/message.h>
	#define DECORATE printf("\n\n+%%$%%+-+%%$%%+-+%%$-+%%$%%+-+%%$%%+-+%%$-+%%$%%+-+%%$%%+-\n\n")
	@implementation NSObject (logProperties) - (void) logProperties { DECORATE; @autoreleasepool { unsigned int propCt = 0;
	const char * myName = [self.description substringWithRange:
	(NSRange){1,[self.description rangeOfString:@":"].location-1}].UTF8String;
	objc_property_t *pA = class_copyPropertyList(self.class, &propCt);
	for (int i = 0; i < propCt; i++) { NSString *name; printf("%s [%s] = %s\n", myName,
	(name = [NSString.alloc initWithUTF8String:property_getName(pA[i])]).UTF8String,
	[objc_msgSend(self,NSSelectorFromString(name)) description].UTF8String);
	} free(pA); } DECORATE; }

paolonl / UIImage+Rotation

Last active July 3, 2018 14:16

Rotate UIImage/CGImageRef

	- (UIImage )rotateImage:(UIImage )image ofAngle:(CGFloat)degrees {
	CGImageRef imgRef = image.CGImage;
	CGFloat angleInRadians = degrees * (M_PI / 180);
	CGFloat width = CGImageGetWidth(imgRef);
	CGFloat height = CGImageGetHeight(imgRef);

	CGRect imgRect = CGRectMake(0, 0, width, height);
	CGAffineTransform transform = CGAffineTransformMakeRotation(angleInRadians);
	CGRect rotatedRect = CGRectApplyAffineTransform(imgRect, transform);

steipete / PSPDFUIKitMainThreadGuard.m

Last active October 30, 2025 15:53

This is a guard that tracks down UIKit access on threads other than main. This snippet is taken from the commercial iOS PDF framework http://pspdfkit.com, but relicensed under MIT. Works because a lot of calls internally call setNeedsDisplay or setNeedsLayout. Won't catch everything, but it's very lightweight and usually does the job.You might n…

	// Taken from the commercial iOS PDF framework http://pspdfkit.com.
	// Copyright (c) 2014 Peter Steinberger, PSPDFKit GmbH. All rights reserved.
	// Licensed under MIT (http://opensource.org/licenses/MIT)
	//
	// You should only use this in debug builds. It doesn't use private API, but I wouldn't ship it.

	// PLEASE DUPE rdar://27192338 (https://openradar.appspot.com/27192338) if you would like to see this in UIKit.

	#import <objc/runtime.h>
	#import <objc/message.h>

steipete / gist:3713233

Created September 13, 2012 09:39

I often use dispatch queues for locking, and this function just makes life SO MUCH EASIER. Accidental deadlocks in more complex code paths are a PITA otherwise. But Apple deprecated dispatch_get_current_queue with iOS6?

	nline void pspdf_dispatch_sync_reentrant(dispatch_queue_t queue, dispatch_block_t block) {
	dispatch_get_current_queue() == queue ? block() : dispatch_sync(queue, block);
	}

hezi / HZClassUsingEnum.h

Created July 12, 2012 14:06

Objective-C Enum-TO-NSString and Vice versa.

	// Declare enums like so:
	#define IMAGE_STATUS(XX) \
	XX(kDOImageStatusOK, = 0) \
	XX(kDOImageStatusCached, )\
	XX(kDOImageStatusRetry, )
	DECLARE_ENUM(DOImageStatus, IMAGE_STATUS)

adamawolf / Apple_mobile_device_types.txt

Last active November 8, 2025 07:48

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

	i386 : iPhone Simulator
	x86_64 : iPhone Simulator
	arm64 : 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

hellerbarde / latency.markdown

Created May 31, 2012 13:16 — forked from jboner/latency.txt

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

xmgtih

git stash用于保存和恢复工作进度

Latency numbers every programmer should know