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@mmick66
mmick66 / UICollectionViewFlowLayoutCenterItem.m
Last active August 2, 2022 10:06
UICollectionViewFlowLayout with arbitrary sized Paging
#import "UICollectionViewFlowLayoutCenterItem.h"
@implementation UICollectionViewFlowLayoutCenterItem
- (CGPoint)targetContentOffsetForProposedContentOffset:(CGPoint)proposedContentOffset withScrollingVelocity:(CGPoint)velocity
{
CGSize collectionViewSize = self.collectionView.bounds.size;
CGFloat proposedContentOffsetCenterX = proposedContentOffset.x + self.collectionView.bounds.size.width * 0.5f;
CGRect proposedRect = self.collectionView.bounds;
@wbroek
wbroek / genymotionwithplay.txt
Last active February 13, 2025 09:37
Genymotion with Google Play Services for ARM
NOTE: Easier way is the X86 way, described on https://www.genymotion.com/help/desktop/faq/#google-play-services
Download the following ZIPs:
ARM Translation Installer v1.1 (http://www.mirrorcreator.com/files/0ZIO8PME/Genymotion-ARM-Translation_v1.1.zip_links)
Download the correct GApps for your Android version:
Google Apps for Android 6.0 (https://www.androidfilehost.com/?fid=24052804347835438 - benzo-gapps-M-20151011-signed-chroma-r3.zip)
Google Apps for Android 5.1 (https://www.androidfilehost.com/?fid=96042739161891406 - gapps-L-4-21-15.zip)
Google Apps for Android 5.0 (https://www.androidfilehost.com/?fid=95784891001614559 - gapps-lp-20141109-signed.zip)
@pgor
pgor / NSMutableURLRequest+CacheControl.m
Last active November 7, 2020 01:41
NSURL mechanism doesn't automatically set last-modified or etag headers, so this category does if the cache contains cached responses.
//
// NSMutableURLRequest+CacheControl.m
//
// Created by Paul Goracke on 2/26/13.
//
@implementation NSMutableURLRequest (CacheControl)
+ (instancetype) newCachePolicyRequestWithURL:(NSURL *)url timeoutInterval:(NSTimeInterval)timeoutInterval {
// If we have cached info, tell request to ignore cache because we only want to process data when we get new from server
@steipete
steipete / PSPDFThreadSafeMutableDictionary.m
Last active January 20, 2025 07:33
Simple implementation of a thread safe mutable dictionary. In most cases, you want NSCache instead, but it can be useful in situations where you want to manually control what is evicted from the cache in low memory situations.**Warning:** I only use this for setting/getting keys. Enumeration is not thread safe here and will still throw exception…
//
// PSPDFThreadSafeMutableDictionary.m
//
// Copyright (c) 2013 Peter Steinberger, PSPDFKit GmbH. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// See http://www.opensource.apple.com/source/objc4/objc4-371.2/runtime/Accessors.subproj/objc-accessors.h
extern void objc_setProperty(id self, SEL _cmd, ptrdiff_t offset, id newValue, BOOL atomic, BOOL shouldCopy);
extern id objc_getProperty(id self, SEL _cmd, ptrdiff_t offset, BOOL atomic);
extern void objc_copyStruct(void *dest, const void *src, ptrdiff_t size, BOOL atomic, BOOL hasStrong);
#define PSPDFAtomicRetainedSetToFrom(dest, source) objc_setProperty(self, _cmd, (ptrdiff_t)(&dest) - (ptrdiff_t)(self), source, YES, NO)
#define PSPDFAtomicCopiedSetToFrom(dest, source) objc_setProperty(self, _cmd, (ptrdiff_t)(&dest) - (ptrdiff_t)(self), source, YES, YES)
#define PSPDFAtomicAutoreleasedGet(source) objc_getProperty(self, _cmd, (ptrdiff_t)(&source) - (ptrdiff_t)(self), YES)
#define PSPDFAtomicStructToFrom(dest, source) objc_copyStruct(&dest, &source, sizeof(__typeof__(source)), YES, NO)
@steipete
steipete / PSPDFUIKitMainThreadGuard.m
Last active May 27, 2024 12:11
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>
@mattt
mattt / uiappearance-selector.md
Last active February 7, 2025 15:27
A list of methods and properties conforming to `UIAppearance` as of iOS 12 Beta 3

Generate the list yourself:

$ cd /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS*.sdk/System/Library/Frameworks/UIKit.framework/Headers
$ grep UI_APPEARANCE_SELECTOR ./*     | \
  sed 's/NS_AVAILABLE_IOS(.*)//g'     | \
  sed 's/NS_DEPRECATED_IOS(.*)//g'    | \
  sed 's/API_AVAILABLE(.*)//g'        | \
  sed 's/API_UNAVAILABLE(.*)//g'      | \
 sed 's/UI_APPEARANCE_SELECTOR//g' | \
@kylefox
kylefox / gist:4512777
Created January 11, 2013 18:15
If you want to use Xcode's FileMerge as your git mergetool, this is how you set it up.
# Tell system when Xcode utilities live:
sudo xcode-select -switch /Applications/Xcode.app/Contents/Developer
# Set "opendiff" as the default mergetool globally:
git config --global merge.tool opendiff
@sebk
sebk / gist:3691003
Created September 10, 2012 13:43
UIPanGestureRecognizer - determine direction
CGPoint velocity = [gestureRecognizer velocityInView:currentView];
if (velocity.x * lastGestureVelocity.x + velocity.y * lastGestureVelocity.y > 0) {
//NSLog(@"gesture went in same direction");
}
else {
NSLog(@"gesture went in opposite direction");
}
lastGestureVelocity = velocity;
@benvium
benvium / installMobileProvisionFile.sh
Created May 1, 2012 15:14
This script installs a .mobileprovision file via bash (no GUI session needed)
#!/bin/sh
# 2012 - Ben Clayton (benvium). Calvium Ltd
# Found at https://gist.github.com/2568707
#
# This script installs a .mobileprovision file without using Xcode. Unlike Xcode, it'll
# work over SSH.
#
# Requires Mac OS X (I'm using 10.7 and Xcode 4.3.2)
#