alanzeino

// where 'syncLabel' is a UILabel
[UIView animateWithDuration:0.2 
                              delay:0.0 
                            options:0 
                         animations:^{
                             self.syncLabel.alpha = 0.2;
                             self.syncLabel.transform = CGAffineTransformMakeScale(3.0,3.0);
                         } 
                         completion:^(BOOL finished) {
                             self.syncLabel.alpha = 1.0;

alanzeino

@implementation NSArray (YOLO)

- (id)firstObject
{
  if (self.count)
    return [self objectAtIndex:0];
  return nil;
}

@end

alanzeino

// cheers to @stroughtonsmith for helping out with this one

UIColor *barColour = [UIColor colorWithRed:0.13f green:0.14f blue:0.15f alpha:1.00f];
    
UIView *colourView = [[UIView alloc] initWithFrame:CGRectMake(0.f, -20.f, 320.f, 64.f)];
colourView.opaque = NO;
colourView.alpha = .7f;
colourView.backgroundColor = barColour;
    
self.navigationBar.barTintColor = barColour;

alanzeino

LLDB Debugging Cheat Sheet

Commands

LLDB Commands

LLDB comes with a great set of commands for powerful debugging.

help

Your starting point for anything. Type help to get a list of all commands, plus any user installed ones. Type 'help for more information on a command. Type help to get help for a specific option in a command too.

alanzeino

#!/usr/bin/env ruby

require 'yaml'

def find_value_for_key(yaml_file, key)
  yaml_file.each do |yaml_key, yaml_value|
    if key == yaml_key
      return yaml_value
    end
  end

alanzeino

#!/usr/bin/env ruby

require 'yaml'

def find_value_for_key(yaml_file, key)
  yaml_file.each do |yaml_key, yaml_value|
    if key == yaml_key
      return yaml_value
    end
  end

alanzeino

//: Playground - noun: a place where people can play

import Foundation

class Node {
    let value: Any

    var next: Node?

    init(value: Any, next: Node?) {

alanzeino

//
//  NavigationController.swift
//

import UIKit

class NavigationController: UINavigationController {
    init() {
        super.init(nibName: nil, bundle: nil)
        

alanzeino

#!/usr/bin/swift

// Run: $ swift noCrashplan.swift
// Background: https://github.com/KrauseFx/overkill/issues/3#issuecomment-270505227

import Foundation
import Cocoa
import ServiceManagement

let badApps = [ "Code42 CrashPlan", "CrashPlanService", "CrashPlanLauncher", "CrashPlanWeb" ]

alanzeino

CollectionView.swift:111:24: error: method does not override any method from its superclass
    open override func performBatchUpdates(_ updates: (() -> Void)?, completion: ((Bool) -> Void)? = nil) {
                       ^
UIKit.UICollectionView:122:15: note: potential overridden instance method 'performBatchUpdates(_:completion:)' here
    open func performBatchUpdates(_ updates: (() -> Swift.Void)?, completion: ((Bool) -> Swift.Void)? = nil)