mayoff

<?xml version="1.0" encoding="UTF-8"?>
<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14313.18" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
    <device id="retina3_5" orientation="portrait">
        <adaptation id="fullscreen"/>
    </device>
    <dependencies>
        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14283.14"/>
        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
    </dependencies>

mayoff

https://itunes.apple.com/us/app/macos-10-14-beta/id1354523149?mt=12

mayoff

The attached lldb command pblock command lets you peek inside an Objective-C block. It tries to tell you where to find the source code for the block, and the values captured by the block when it was created.

Consider this example program:

#import <Foundation/Foundation.h>

@interface Foo: NSObject
@end

@implementation Foo

mayoff

http://apptrailers.itunes.apple.com/apple-assets-us-std-000001/PurpleVideo125/v4/20/45/61/2045619d-ad44-4aec-e03e-a64e5eb4e424/P53788383__AT_video_gr50.mp4

mayoff

import Cocoa
import MetalKit

@NSApplicationMain
class AppDelegate: NSObject, NSApplicationDelegate, MTKViewDelegate {
    weak var window: NSWindow!
    weak var metalView: MTKView!
    let device = MTLCreateSystemDefaultDevice()!
    var commandQueue: MTLCommandQueue!
    var pipelineState: MTLRenderPipelineState!

mayoff

import Dispatch
import Foundation

var x = 7
let dd = withUnsafeBytes(of: &x, { DispatchData.init(bytes: $0) })
print(dd as? Data)                      // Case 1: nil
print(dd as? NSData)                    // Case 2: nil
print(dd as Any as? Data)               // Case 3: nil
print(dd as Any as? NSData)             // Case 4: .some
print(dd as Any as? NSData as Data?)    // Case 5: .some

mayoff

import UIKit
import ImageIO
import MobileCoreServices
import PlaygroundSupport

let documentFolderUrl = try! FileManager.default.url(for: .documentDirectory, in: .userDomainMask, appropriateFor: nil, create: true)
print(documentFolderUrl)

class ShapeView: UIView {
    override class var layerClass: AnyClass { return CAShapeLayer.self }

mayoff

if [[ $(defaults read com.apple.Finder CreateDesktop 2>/dev/null) = YES ]]; then
	defaults write com.apple.Finder CreateDesktop NO
else
	defaults write com.apple.Finder CreateDesktop YES
fi

mayoff

#!/bin/sh

defaults read com.apple.finder CreateDesktop > /dev/null 2>&1
enabled=$?

if [ "$1" = "off" ]; then
	if [ $enabled -eq 1 ]; then
		defaults write com.apple.finder CreateDesktop false
		osascript -e 'tell application "Finder" to quit'
		open -a Finder

mayoff

@import Foundation;
@import CoreGraphics;

typedef struct __attribute__((objc_boxable)) CGPoint CGPoint;
typedef struct __attribute__((objc_boxable)) CGSize CGSize;
typedef struct __attribute__((objc_boxable)) CGRect CGRect;
typedef struct __attribute__((objc_boxable)) CGVector CGVector;

int main(int argc, const char * argv[]) {
    @autoreleasepool {