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@randomsequence
randomsequence / StickyHeadersCollectionViewFlowLayout.m
Last active October 26, 2016 14:57
A subclass of UICollectionViewFlowLayout which has UITableView style sticky headers.
// StickyHeadersCollectionViewFlowLayout
//
// A subclass of UICollectionViewFlowLayout which has UITableView style sticky headers.
//
// This code is based on Evadne Wu's code^1, with the following changes:
//
// * Fixes a crash for sections with zero items
// * Adds support for UIScrollView's contentInset
// * Adds support for UICollectionViewFlowLayout's sectionInset
//
@steipete
steipete / DevelopmentEnviromentDetector.m
Last active October 30, 2019 03:49
Detect if you're currently running a development version or an App Store/Ad Hoc version.
static BOOL PSPDFIsDevelopmentBuild(void) {
#if TARGET_IPHONE_SIMULATOR
return YES;
#else
static BOOL isDevelopment = NO;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
// There is no provisioning profile in AppStore Apps.
NSData *data = [NSData dataWithContentsOfFile:[NSBundle.mainBundle pathForResource:@"embedded" ofType:@"mobileprovision"]];
if (data) {
@billyohgren
billyohgren / UILabel+ContentSize.h
Last active April 20, 2020 13:04
Calculate the actual size of the content inside a UILabel
#import <UIKit/UIKit.h>
@interface UILabel (ContentSize)
- (CGSize)contentSize;
@end
@andymatuschak
andymatuschak / CollectionViewDataSource.swift
Last active February 12, 2021 09:44
Type-safe value-oriented collection view data source
//
// CollectionViewDataSource.swift
// Khan Academy
//
// Created by Andy Matuschak on 10/14/14.
// Copyright (c) 2014 Khan Academy. All rights reserved.
//
import UIKit
@lachlanhurst
lachlanhurst / build-gdal-combined-lib.sh
Last active May 14, 2021 02:25
Script for building GDAL for iOS and the iOS simulators
#!/bin/bash
PREFIX=`pwd`/install/
rm -rf $PREFIX
mkdir $PREFIX
LOG=./log
rm -rf $LOG
mkdir $LOG
if [ -e ${PREFIX} ]
then
@andymatuschak
andymatuschak / MultiDirectionAdjudicatingScrollView.swift
Created January 26, 2015 19:31
Source for the Khan Academy app's unusual scrolling interactions
//
// MultiDirectionAdjudicatingScrollView.swift
// Khan Academy
//
// Created by Andy Matuschak on 12/16/14.
// Copyright (c) 2014 Khan Academy. All rights reserved.
//
import UIKit
import UIKit.UIGestureRecognizerSubclass
@steipete
steipete / ios-xcode-device-support.sh
Last active October 14, 2024 16:35
Using iOS 15 devices with Xcode 12.5 (instead of Xcode 13)
# The trick is to link the DeviceSupport folder from the beta to the stable version.
# sudo needed if you run the Mac App Store version. Always download the dmg instead... you'll thank me later :)
# Support iOS 15 devices (Xcode 13.0) with Xcode 12.5:
sudo ln -s /Applications/Xcode-beta.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport/15.0 /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport
# Then restart Xcode and reconnect your devices. You will need to do that for every beta of future iOS versions
# (A similar approach works for older versions too, just change the version number after DeviceSupport)
@TeresaP
TeresaP / CalabashBackdoor.m
Last active June 24, 2020 06:12
Profdata Code Coverage
// Forward-declare LLVM (profdata) methods for usage below
// For documentation, see: http://clang.llvm.org/docs/SourceBasedCodeCoverage.html
int __llvm_profile_write_file(void);
void __llvm_profile_initialize_file(void);
void __llvm_profile_set_filename(const char *Name);
/**
* Generate profraw (profdata) code coverage
*/
- (BOOL)beginCodeCoverage:(NSString*)fullFilePath