richkolasa

override func traitCollectionDidChange(_ previousTraitCollection: UITraitCollection?) {
    super.traitCollectionDidChange(previousTraitCollection)
        
    let referenceSize = UIFont.preferredFont(forTextStyle: .body, 
                                             compatibleWith: .init(preferredContentSizeCategory: .medium))
    let newSize = UIFont.preferredFont(forTextStyle: .body)
 
    let percentIncrease = (newSize.pointSize / referenceSize.pointSize) * 100
    let js = "document.getElementsByTagName('body')[0].style.webkitTextSizeAdjust='\(Int(percentIncrease))%'"
    webView.evaluateJavaScript(js) { _, error in

smorr

#import <Foundation/Foundation.h>
#include <sys/param.h>
#include <sys/mount.h>

// adapted from http://www.cocoabuilder.com/archive/cocoa/203717-looking-for-sample-code-to-read-uuid-from-disk-volume.html
int main(int argc, const char * argv[]) {
    @autoreleasepool {
        // insert code here...
        
        struct statfs stat;

rnystrom

import UIKit

public extension CGSize {

    func snapped(scale: CGFloat) -> CGSize {
        var size = self
        size.width = ceil(size.width * scale) / scale
        size.height = ceil(size.height * scale) / scale
        return size
    }

tclementdev

libdispatch efficiency tips

The libdispatch is one of the most misused API due to the way it was presented to us when it was introduced and for many years after that, and due to the confusing documentation and API. This page is a compilation of important things to know if you're going to use this library. Many references are available at the end of this document pointing to comments from Apple's very own libdispatch maintainer (Pierre Habouzit).

My take-aways are:

• You should create very few, long-lived, well-defined queues. These queues should be seen as execution contexts in your program (gui, background work, ...) that benefit from executing in parallel. An important thing to note is that if these queues are all active at once, you will get as many threads running. In most apps, you probably do not need to create more than 3 or 4 queues.

• Go serial first, and as you find performance bottle necks, measure why, and if concurrency helps, apply with care, always validating under system pressure. Reuse

macguru

COMPACT WIDTH (stacked view)

- 320 x 568 pt
	-> iPhone 5, 5s
- 320 x 768 pt
	-> iPad 9.7" Split Landscape 2/3 right
- 320 x 834 pt
	-> iPad 10.5" Split Landscape 2/3 right
- 320 x 1024 pt
	-> iPad 9.7" Split Portrait right

robjwells

//
//  NSAppleScript+RunHandler.h
//  astest
//
//  Created by Rob Wells on 30/01/2014.
//  Copyright (c) 2014 Rob Wells. All rights reserved.
//

#ifndef kASAppleScriptSuite
#define kASAppleScriptSuite 'ascr'

zrxq

comma script import ~/lldb/subl.py
comma script add -f subl.subl subl