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Matt Reagan matthewreagan

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@krzyzanowskim
krzyzanowskim / where-where.swift
Last active May 19, 2022 12:38
Where "where" may be used? http://blog.krzyzanowskim.com/2015/11/13/where-where-may-be-used/
import Cocoa
// for-in
func checkForIn(array: [Int], dict: [Int: String]) {
for num in array where dict[num] != nil {
num
}
}
checkForIn([1,2,3,4], dict: [1:"one", 2:"two"])
@iOSDigital
iOSDigital / gist:8379249
Created January 12, 2014 01:14
UIImage doesn't have a tint colour. UIImageView does. This little method returns a UIImage, tinted with a UIColor. It's useful for things like table icons, where the image view is read only. Means you don't have to create loads of PNGs in different colours.
-(UIImage *)imageWithTint:(UIImage *)image andTintColor:(UIColor *)tintColor {
UIImage *imageNew = [image imageWithRenderingMode:UIImageRenderingModeAlwaysTemplate];
UIImageView *imageView = [[UIImageView alloc] initWithImage:imageNew];
imageView.tintColor = tintColor;
UIGraphicsBeginImageContextWithOptions(imageView.bounds.size, NO, 0.0);
[imageView.layer renderInContext:UIGraphicsGetCurrentContext()];
UIImage *tintedImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
@BenedictC
BenedictC / gist:4246759
Created December 9, 2012 20:03
A marco for creating enums with values which can be logged (inspired by http://rentzsch.tumblr.com/post/37512716957/enum-nsstring and long train journey).
#define EMKStringableEnum(ENUM_NAME, ENUM_VALUES...) \
\
typedef enum { \
ENUM_VALUES \
} ENUM_NAME; \
\
\
\
static NSString * ENUM_NAME##ToString(int enumValue) { \
static NSString *enumDescription = @"" #ENUM_VALUES; \