edwardean’s gists

edwardean / PSPDFUIKitMainThreadGuard.m

Created December 18, 2015 03:58 — forked from tony0x59/PSPDFUIKitMainThreadGuard.m

iOS，在DEBUG模式自动探测非主线程视图更新操作，将.m加入项目即可生效。

	// 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.

	#ifdef DEBUG //only use this in debug builds

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

edwardean / iOS获取SSID

Last active December 18, 2015 07:18 — forked from tonycn/gist:f877044ebdf80599cb26

iOS SSID

	NSString *currentSSID = @"";
	CFArrayRef myArray = CNCopySupportedInterfaces();
	if (myArray != nil){
	NSDictionary* myDict = (__bridge NSDictionary *) CNCopyCurrentNetworkInfo(CFArrayGetValueAtIndex(myArray, 0));
	if (myDict!=nil){
	currentSSID=[myDict valueForKey:@"SSID"];
	} else {
	currentSSID=@"<<NONE>>";
	}
	} else {

edwardean / detect file creation in a given directory

Last active December 19, 2015 11:29

	dispatch_source_t cookitSourceWithFile(const char *cookieFileName) {
	int fd = open(cookieFileName, O_EVTONLY);
	if (fd == -1) {
	return NULL;
	}
	fcntl(fd, F_SETFL, O_NONBLOCK);
	dispatch_source_t source = dispatch_source_create(DISPATCH_SOURCE_TYPE_VNODE, fd,DISPATCH_VNODE_DELETE \| DISPATCH_VNODE_WRITE \| DISPATCH_VNODE_EXTEND \| DISPATCH_VNODE_RENAME \| DISPATCH_VNODE_REVOKE, DISPATCH_TARGET_QUEUE_DEFAULT);
	if (!source) {
	close(fd);
	return NULL;

edwardean / NSNull in respnse

Created December 22, 2015 06:10

AFHTTPRequestOperationManager->AFHTTPResponseSerializer->removesKeysWithNullValues = YES;

edwardean / Category方法重名：

Created December 22, 2015 07:20

	针对Xcode能自动探知重名的category方法的问题，暂时找到了一个办法。
	在工程的环境变量中加上OBJC_PRINT_REPLACED_METHODS并且值为YES，那么Xcode会自动log出重名的category方法

edwardean / NSNull+LCFMessageForwarding.h

Created December 27, 2015 08:23 — forked from leichunfeng/NSNull+LCFMessageForwarding.h

通过重写 NSNull 的消息转发方法，来避免给 [NSNull null] 发消息时的闪退问题

	//
	// NSNull+LCFMessageForwarding.h
	// NSNull
	//
	// Created by leichunfeng on 15/12/22.
	// Copyright © 2015年 leichunfeng. All rights reserved.
	//

	#import <Foundation/Foundation.h>

edwardean / xcode_ramdisk.sh

Created December 27, 2015 13:41 — forked from skeeet/xcode_ramdisk.sh

Create a RAM disk for using with XCode

	#!/bin/sh
	# Create a RAM disk with same perms as mountpoint
	# Script based on http://itux.idev.pro/2012/04/iservice-speed-up-your-xcode-%D0%BD%D0%B5%D0%BA%D0%BE%D1%82%D0%BE%D1%80%D1%8B%D0%B5-%D1%81%D0%BF%D0%BE%D1%81%D0%BE%D0%B1%D1%8B/ with some additions
	# Usage: sudo ./xcode_ramdisk.sh start

	USERNAME=$(logname)

	TMP_DIR="/private/tmp"
	RUN_DIR="/var/run"
	SYS_CACHES_DIR="/Library/Caches"

edwardean / update_xcode_plugins

Created December 27, 2015 13:46 — forked from skeeet/update_xcode_plugins

	#!/bin/sh

	#ID='A16FF353-8441-459E-A50C-B071F53F51B7' # Xcode 6.2
	#ID='992275C1-432A-4CF7-B659-D84ED6D42D3F' # Xcode 6.3
	#ID='E969541F-E6F9-4D25-8158-72DC3545A6C6' # Xcode 6.3.2
	ID=`/usr/libexec/PlistBuddy -c 'Print DVTPlugInCompatibilityUUID' "$(xcode-select -p)/../Info.plist"`


	PLIST_BUDDY=/usr/libexec/PlistBuddy

edwardean / BNRTimeBlock.h

Created December 27, 2015 13:58 — forked from skeeet/BNRTimeBlock.h

CGFloat BNRTimeBlock (void (^block)(void));

edwardean / gist:32c1ef21d7b732301242

Created January 30, 2016 15:08

mask UIImage

	#define Mask8(__x__) ((__x__) & 0xFF)
	#define R(__x__) (Mask8(__x__))
	#define G(__x__) (Mask8(__x__ >> 8))
	#define B(__x__) (Mask8(__x__ >> 16))
	#define A(__x__) (Mask8(__x__ >> 24))
	#define __RGBA(r, g, b, a) (Mask8(r) \| Mask8(g)<<8 \| Mask8(b)<<16 \| Mask8(a)<<24)

	- (UIImage )maskImage:(UIImage )maskImage {
	if (!maskImage) {
	return self;

Herry edwardean