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#Notes on Golang

Starting points

• A Tour of Go
• How to write Go Code
• Effective Go
• Go's Declaration Syntax

Cheat Sheet

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source 'https://github.com/CocoaPods/Specs.git'

# optionally complete and uncomment if compilation issues arise
# project '<path to project relative to this Podfile>/<name of project without extension>'
# workspace 'MyPubNubProject'
 
target 'application-target-name' do
    # Should only use this with projects 
    # that must have a minimum deployment 
    # target of iOS 7 

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source 'https://github.com/CocoaPods/Specs.git'

# optionally complete and uncomment if compilation issues arise
# project '<path to project relative to this Podfile>/<name of project without extension>'
# workspace 'MyPubNubProject'

use_frameworks!
 
target 'application-target-name' do
    # Can only support iOS 8 or higher with frameworks, 

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Notes about concurrency

• NSOperation in Swift
• Another example

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Collection of CoreData notes

• I like this post
• With UICollectionView
• NSFetchedResultsController tip

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Notes about Text Programming on iOS

This is a collection of notes from the Text Programming Guide for iOS

Handling keyboard notifications in a scrollview:

// Call this method somewhere in your view controller setup code.
- (void)registerForKeyboardNotifications
{
    [[NSNotificationCenter defaultCenter] addObserver:self

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// Inspired by http://stackoverflow.com/questions/25724527/swift-test-class-type-in-switch-statement

for thing in things {
    switch thing {
    case 0 as Int:
        println("zero as an Int")
    case 0 as Double:
        println("zero as a Double")
    case let someInt as Int:
        println("an integer value of \(someInt)")

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Collection View Notes

This is a colection of notes about UICollectionView programming.

Deleting:

[self.collectionView performBatchUpdates:^{
   NSArray* itemPaths = [self.collectionView indexPathsForSelectedItems];
 
   // Delete the items from the data source.

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// Make sure to include this at the top of AppDelegate.m
@import UserNotifications;

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    // Override point for customization after application launch.
    // Check Notification Settings on launch
    [[UNUserNotificationCenter currentNotificationCenter] getNotificationSettingsWithCompletionHandler:^(UNNotificationSettings * _Nonnull settings) {
        switch (settings.authorizationStatus) {
            // This means we have not yet asked for notification permissions
            case UNAuthorizationStatusNotDetermined:

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import UIKit
import PubNub

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
  var client: PubNub?
  var window: UIWindow?


  func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {