edwardean

@implementation XCDUUID

+ (void) load
{
    // query runtime if NSUUID class already exists, if so => done
    if (objc_getClass("NSUUID"))
    {
        return;
    }
    

edwardean

- (void)pauseLayer:(CALayer *)layer {
    CFTimeInterval pausedTime = [layer convertTime:CACurrentMediaTime() fromLayer:nil];
    layer.speed = 0.0f;
    layer.timeOffset = pausedTime;
}

- (void)resumeLayer:(CALayer *)layer {
    CFTimeInterval pausedTime = [layer timeOffset];
    layer.speed = 1.0;
    layer.timeOffset = 0.0;

edwardean

// -*- truncate-lines: t; -*-

// OPTION(var, env, help)

OPTION( PrintImages,              OBJC_PRINT_IMAGES,               "log image and library names as they are loaded")
OPTION( PrintImageTimes,          OBJC_PRINT_IMAGE_TIMES,          "measure duration of image loading steps")
OPTION( PrintLoading,             OBJC_PRINT_LOAD_METHODS,         "log calls to class and category +load methods")
OPTION( PrintInitializing,        OBJC_PRINT_INITIALIZE_METHODS,   "log calls to class +initialize methods")
OPTION( PrintResolving,           OBJC_PRINT_RESOLVED_METHODS,     "log methods created by +resolveClassMethod: and +resolveInstanceMethod:")
OPTION( PrintConnecting,          OBJC_PRINT_CLASS_SETUP,          "log progress of class and category setup")

edwardean

FILE SPACING:

 # double space a file
 sed G

 # double space a file which already has blank lines in it. Output file
 # should contain no more than one blank line between lines of text.
 sed '/^$/d;G'

edwardean

#!/bin/sh

# Combined all static libaries in the current directory into a single static library
# It is hardcoded to use the i386, armv7, and armv7s architectures; this can easily be changed via the 'archs' variable at the top
# The script takes a single argument, which is the name of the final, combined library to be created.
#
#   For example:
#  =>    combine_static_libraries.sh combined-library
#
# Script by Evan Schoenberg, Regular Rate and Rhythm Software

edwardean

import Foundation
import UIKit


/// Used to create a layout guide that pins to the top of the keyboard
final class KeyboardLayoutGuide {

    private let notificationCenter: NotificationCenter
    private let bottomConstraint: NSLayoutConstraint

edwardean

int outCount;
objc_property_t *properties = class_copyPropertyList([MyObject class], &outCount);
for(i = 0; i < outCount; i++) {
    objc_property_t property = properties[i];
    const char *c_attributes = property_getAttributes(property);
    printf("%s", c_attributes);
}
free(properties);

属性类型  name值：T  value：变化

edwardean

- (id)initWithCoder:(NSCoder *)aDecoder {
    if (self = [super init]) {
        unsigned int outCount;
        Ivar * ivars = class_copyIvarList([self class], &outCount);
        for (int i = 0; i < outCount; i ++) {
            Ivar ivar = ivars[i];
            NSString * key = [NSString stringWithUTF8String:ivar_getName(ivar)];
            [self setValue:[aDecoder decodeObjectForKey:key] forKey:key];
        }
    }

edwardean

NS_ASSUME_NONNULL_BEGIN

/**
 A proxy used to hold a weak object.
 It can be used to avoid retain cycles, such as the target in NSTimer or CADisplayLink.
 
 sample code:
 
 @implementation MyView {
 NSTimer *_timer;

edwardean

@import Foundation;


@interface NSObject (ThreadSafeProxy)

- (instancetype)threadSafe;

@end