A common task when developing iOS apps is to register custom cell subclasses for both UITableView and UICollectionView. Well, that is if you don’t use Storyboards, of course.
Both UITableView and UICollectionView offer a similar API to register custom cell classes:
public func registerClass(cellClass: AnyClass?, forCellWithReuseIdentifier identifier: String)
public func registerNib(nib: UINib?, forCellWithReuseIdentifier identifier: String)Following the tradition from last year, here's my complete list of all interesting features and updates I could find in Apple's OSes, SDKs and developer tools that were announced at this year's WWDC. This is based on the keynotes, the "What's New In ..." presentations and some others, Apple's release notes, and blog posts and tweets that I came across in the last few weeks.
If for some reason you haven't watched the talks yet, I really recommend watching at least the "State of the Union" and the "What's New In" intros for the platforms you're interested in. The unofficial WWDC Mac app is great way to download the videos and keep track of what you've already watched.
If you're interested, here are my WWDC 2015 notes (might be useful if you're planning to drop support for iOS 8 now and start using some iOS 9 APIs).
| {"lastUpload":"2020-11-06T19:19:35.357Z","extensionVersion":"v3.4.3"} |
| class Cache<T> { | |
| private lazy var objects = [String : T]() | |
| func object(forKey key: String) -> T? { | |
| return objects[key] | |
| } | |
| func addObject(_ object: T, forKey key: String) { | |
| objects[key] = object | |
| } |
Purpose of this list is to gather a source of information on how many people are working on iOS application.
I often wonder how many people are behind Facebook's app or Twitter's. If you're as curious as me, please share and please add apps 😉.
* - it's a rumoured value only. Needs confirmation from someone inside the company.
A common task when developing iOS apps is to register custom cell subclasses for both UITableView and UICollectionView. Well, that is if you don’t use Storyboards, of course.
Both UITableView and UICollectionView offer a similar API to register custom cell classes:
public func register(_ cellClass: AnyClass?, forCellReuseIdentifier identifier: String)
public func register(_ nib: UINib?, forCellReuseIdentifier identifier: String)
Most people is familiar with Xcode theme support for the text editor. You simply open Preferences, Fonts & Colors and duplicate
an existing theme (or create a new one from scratch). Xcode editor themes have the .dvtcolortheme extension.
However, there's some support for themeing Xcode itself (fonts, gradients, colors). Xcode loads the default theme from
/Applications/Xcode.app/Contents/SharedFrameworks/DVTKit.framework/Versions/A/Resources/Default.dvttheme.
.dvttheme files are simply XML files that conform to an undocumented schema. If you want to modify any of the settings in
Default.dvttheme, instead of modifying the bundle resource file you can instruct Xcode to load your custom .dvttheme from
wherever you want:
Download Beta Build (builds expire after 28 days)
Here is an example snippet of the theme configuration commands (place these at the top of your Markdown file):
theme: Work
text: Gill Sans, #F5E5C0, text-scale(0.75), line-height(1.4)
header: Gill Sans UltraBold, text-scale(1.2), line-height(0.9)
| // | |
| // UIView+Constraints.swift | |
| // CiLabs | |
| // | |
| // Copyright © 2019 Netguru.co. All rights reserved. | |
| // | |
| import UIKit | |
| typealias Constraint = (_ layoutView: UIView) -> NSLayoutConstraint |
| public protocol KeypathUpdatable { | |
| func update<T>(_ keyPath: WritableKeyPath<Self, T>, to value: T) -> Self | |
| } | |
| public extension KeypathUpdatable { | |
| public func update<T>(_ keyPath: WritableKeyPath<Self, T>, to value: T) -> Self { | |
| var copy = self | |
| copy[keyPath: keyPath] = value | |
| return copy | |
| } |