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@alex-cellcity
alex-cellcity / Version.m
Created May 30, 2011 04:55
Runtime iOS Version Checking
/*
* System Versioning Preprocessor Macros
*/
#define SYSTEM_VERSION_EQUAL_TO(v) ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] == NSOrderedSame)
#define SYSTEM_VERSION_GREATER_THAN(v) ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] == NSOrderedDescending)
#define SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(v) ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] != NSOrderedAscending)
#define SYSTEM_VERSION_LESS_THAN(v) ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] == NSOrderedAscending)
#define SYSTEM_VERSION_LESS_THAN_OR_EQUAL_TO(v) ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] != NSOrderedDescending)
@lukeredpath
lukeredpath / ExampleClass.m
Created June 30, 2011 22:18
Macro for creating your "shared instance" using GCD
@implementation MySharedThing
+ (id)sharedInstance
{
DEFINE_SHARED_INSTANCE_USING_BLOCK(^{
return [[self alloc] init];
});
}
@end
@Jaybles
Jaybles / UIDeviceHardware.h
Created October 28, 2011 19:33
UIDeviceHardware - Determine iOS device being used
//
// UIDeviceHardware.h
//
// Used to determine EXACT version of device software is running on.
#import <Foundation/Foundation.h>
@interface UIDeviceHardware : NSObject
- (NSString *) platform;
@beccadax
beccadax / ArchVulture.h
Last active December 18, 2015 12:59
Allows you to add a "vulture": a block that will be executed when the object it's attached to is deallocated.
#import <Foundation/Foundation.h>
@interface NSObject (addVulture)
// Do NOT use a block that captures this object.
// If you capture it strongly, you'll create a retain cycle.
// If you capture it weakly, you'll just get nil.
// If you capture it unsafely, you'll start calling methods on a mostly-dealloced object!
- (void)addVultureWithBlock:(dispatch_block_t)block;