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- (UIImage *)dynamicImage | |
{ | |
UITraitCollection *const baseTraitCollection = /* an existing trait collection */; | |
UITraitCollection *const lightTraitCollection = [UITraitCollection traitCollectionWithTraitsFromCollections:@[baseTraitCollection, [UITraitCollection traitCollectionWithUserInterfaceStyle:UIUserInterfaceStyleLight]]]; | |
UITraitCollection *const purelyDarkTraitCollection = [UITraitCollection traitCollectionWithUserInterfaceStyle:UIUserInterfaceStyleDark]; | |
UITraitCollection *const darkTraitCollection = [UITraitCollection traitCollectionWithTraitsFromCollections:@[baseTraitCollection, purelyDarkTraitCollection]]; | |
__block UIImage *lightImage; | |
[lightTraitCollection performAsCurrentTraitCollection:^{ | |
lightImage = /* draw image */; |
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/// Withable is a simple protocol to make constructing | |
/// and modifying objects with multiple properties | |
/// more pleasant (functional, chainable, point-free) | |
public protocol Withable { | |
init() | |
} | |
public extension Withable { | |
/// Construct a new instance, setting an arbitrary subset of properties | |
init(with config: (inout Self) -> Void) { |
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extension NSTimer { | |
/** | |
Creates and schedules a one-time `NSTimer` instance. | |
- Parameters: | |
- delay: The delay before execution. | |
- handler: A closure to execute after `delay`. | |
- Returns: The newly-created `NSTimer` instance. | |
*/ |
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// See: https://devforums.apple.com/message/1000934#1000934 | |
import Foundation | |
// Logic | |
operator prefix ¬ {} | |
@prefix func ¬ (value: Bool) -> Bool { | |
return !value | |
} |
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@interface UIView (MPAdditions) | |
@end | |
@implementation UIView (MPAdditions) | |
- (id)debugQuickLookObject { | |
if (self.bounds.size.width < 0.0f || self.bounds.size.height < 0.0f) { | |
return nil; | |
} | |