ricardopereira

Here's my own list of the interesting stuff announced during this year's WWDC, collected from the keynotes, various Apple docs, blog posts and tweets.

If you're planning to watch the videos, I really recommend this Mac app that helps you download and watch them: https://github.com/insidegui/WWDC.

OS X El Capitan

http://www.apple.com/osx/elcapitan-preview/

• split view - two apps side by side on full screen

ricardopereira

let gradient = CAGradientLayer()

gradient.frame = tableView.superview?.bounds ?? CGRectNull
gradient.colors = [UIColor.clearColor().CGColor, UIColor.clearColor().CGColor, UIColor.blackColor().CGColor, UIColor.blackColor().CGColor, UIColor.clearColor().CGColor, UIColor.clearColor().CGColor]
gradient.locations = [0.0, 0.15, 0.25, 0.75, 0.85, 1.0]
tableView.superview?.layer.mask = gradient

tableView.backgroundColor = UIColor.clearColor()

ricardopereira

Better local require() paths for Node.js

Problem

When the directory structure of your Node.js application (not library!) has some depth, you end up with a lot of annoying relative paths in your require calls like:

var Article = require('../../../models/article');

Those suck for maintenance and they're ugly.

Possible solutions

ricardopereira

Keybase proof

I hereby claim:

• I am ricardopereira on github.
• I am ricardopereira (https://keybase.io/ricardopereira) on keybase.
• I have a public key whose fingerprint is 834C 5C93 547A 11DA 8792 565F CF8F B293 310B 81AB

To claim this, I am signing this object:

ricardopereira

/**
 * The following preprocessor macros can be used to adopt the new nullability annotations and generics
 * features available in Xcode 7, while maintaining backwards compatibility with earlier versions of
 * Xcode that do not support these features.
 */

#if __has_feature(nullability)
#   define __ASSUME_NONNULL_BEGIN      NS_ASSUME_NONNULL_BEGIN
#   define __ASSUME_NONNULL_END        NS_ASSUME_NONNULL_END
#   define __NULLABLE                  nullable

ricardopereira

expr -- (void)printf("[%s, %s]\n",(char *) object_getClassName(*(long*)($esp+4)), (char *) *(long *)($esp+8) )

ricardopereira

expr -- (void)printf("[%s %s]\n",(char *) object_getClassName(*(long*)($rdi)), (char *)($rsi))

ricardopereira

// How to apply color formatting to your log statements:
// 
// To set the foreground color:
// Insert the ESCAPE_SEQ into your string, followed by "fg124,12,255;" where r=124, g=12, b=255.
// 
// To set the background color:
// Insert the ESCAPE_SEQ into your string, followed by "bg12,24,36;" where r=12, g=24, b=36.
// 
// To reset the foreground color (to default value):
// Insert the ESCAPE_SEQ into your string, followed by "fg;"

ricardopereira

PSPDF_EXTERN BOOL PSPDFIsBlock(id _Nullable block) {
    static Class blockClass;
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        blockClass = [^{} class];
        while ([blockClass superclass] != NSObject.class) {
            blockClass = [blockClass superclass];
        }
    });

ricardopereira

import UIKit
import XCPlayground
import Eureka

var formVC = FormViewController()

let section = Section("Whitesmith Events")

section <<< TextRow() {
    $0.value = "Surprise!"