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@matthiasplappert
matthiasplappert / gist:9493050
Last active August 29, 2015 13:57
QuickLook Debugging for `UIView`
@interface UIView (MPAdditions)
@end
@implementation UIView (MPAdditions)
- (id)debugQuickLookObject {
if (self.bounds.size.width < 0.0f || self.bounds.size.height < 0.0f) {
return nil;
}
@kyleve
kyleve / gist:8213806
Created January 2, 2014 01:46
/**
Provides the ability to verify key paths at compile time.
If "keyPath" does not exist, a compile-time error will be generated.
Example:
// Verifies "isFinished" exists on "operation".
NSString *key = SQKeyPath(operation, isFinished);
// Verifies "isFinished" exists on self.
@drance
drance / UIViewController+BHSContainment.m
Last active September 2, 2021 00:26
Tired of the UIViewController containment three-step. Adds a convenience param if the destination superview is not actually the parent VC's main view.
@implementation UIViewController (BHSContainment)
- (void)bhs_addChildViewController:(UIViewController *)child {
[self bhs_addChildViewController:child superview:self.view];
}
// Note this potentially forces view loads on both parent and child
// Not a problem if used in -viewDidLoad or later
// Use superview parameter with care. If it's not within the parent VC's hierarchy, you deserve to lose
@steipete
steipete / PSPDFUIKitMainThreadGuard.m
Last active March 10, 2024 19:23
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>
@ccgus
ccgus / Xcode crash report
Created February 23, 2013 19:02
Xcode crash report whoa
Application Specific Information:
ProductBuildVersion: 4H127
ASSERTION FAILURE in /SourceCache/IDEInterfaceBuilder/IDEInterfaceBuilder-3084/Framework/Connections/Interface/IBConnectionPopUpMenu.m:388
Details: Need a menu.
Function: NSMenuItem *IBPopUpConnectionMenuWithMenuItems(NSArray *, NSMenuItem *, NSEvent *, NSRect, BOOL, NSSet *, CGFloat, NSWindow *, NSColor *, NSColor *, NSColor *, NSColor *, id<IBConnectionPopUpMenuDelegate>)
Thread: <NSThread: 0x40030a1e0>{name = (null), num = 1}
Hints: None
Backtrace:
0 0x000000010c77b249 -[IDEAssertionHandler handleFailureInFunction:fileName:lineNumber:messageFormat:arguments:] (in IDEKit)
1 0x000000010ba2ec65 _DVTAssertionHandler (in DVTFoundation)
@boredzo
boredzo / gist:4604459
Created January 23, 2013 11:04
Two-color angle gradient in Core Image
kernel vec4 coreImageKernel(__color startColor, __color endColor)
{
vec2 point = destCoord();
float angle = atan(point.y, point.x) + radians(180.0);
//Start from the upper middle, not the left middle
angle += radians(90.0);
angle = mod(angle, radians(360.0));
float fraction = angle / radians(360.0);
@adamawolf
adamawolf / Apple_mobile_device_types.txt
Last active May 2, 2024 13:56
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
@omz
omz / gist:1102091
Created July 24, 2011 01:40
Creating arbitrarily-colored icons from a black-with-alpha master image (iOS)
// Usage example:
// input image: http://f.cl.ly/items/3v0S3w2B3N0p3e0I082d/Image%202011.07.22%2011:29:25%20PM.png
//
// UIImage *buttonImage = [UIImage ipMaskedImageNamed:@"UIButtonBarAction.png" color:[UIColor redColor]];
// .h
@interface UIImage (IPImageUtils)
+ (UIImage *)ipMaskedImageNamed:(NSString *)name color:(UIColor *)color;
@end