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Have you ever wanted to build universal apps meaning you build 1 app UI that can work on any screen size? That’s what Auto Layout in iOS will help you.
In this Auto Layout tutorial, you’ll learn:
+ What’s Auto Layout
+ How to add unambiguous constraints
+ Different kinds of constraints in Auto Layout.
+ Priorities in Auto Layout Constraints
+ How to programmatically create auto layout constraints
+ What’s Auto Layout Content Hugging Priority vs. Content Compression Resistence Priority
+ Stack View in iOS
+ How to create and use UIStackView with Auto Layout
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+ the starter and complete projects of this episode
+ Duc’s step-by-step video tutorial
+ Duc’s new training on How to Build Nike E-commerce Store WITHOUT Losing Your Shirt
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ABOUT CODE MASTERY
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Code Mastery is hosted by Duc Tran, founder of Developers Academy.
This is his free-style no notes, no teleprompter presentation and live coding broadcast with you guys everyday.
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MEET DUC TRAN
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Duc Tran is founder of Developers Academy, one of the world’s leading iOS, Android and Web development trainers.
More than 2,000,000 developers have studied his video trainings; 100,000 developers see his posts each month. Each year, Duc has helped 20,000 plus developers graduate from his online courses or video series.
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FREE TRAININGS IN IOS DEVELOPMENT
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SOURCE CODE IN THIS COURSE
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NetworkProcessor.swift
class NetworkProcessor
{
lazy var configuration: URLSessionConfiguration = URLSessionConfiguration.default
lazy var session: URLSession = URLSession(configuration: self.configuration)
let url: URL
init(url: URL)
{
self.url = url
}
typealias JSONDictionaryHandler = (([String : Any]?) – Void)
func downloadJSONFromURL(_ completion: @escaping JSONDictionaryHandler)
{
let request = URLRequest(url: self.url)
let dataTask = session.dataTask(with: request) { (data, response, error) in
if error == nil {
if let httpResponse = response as? HTTPURLResponse {
switch httpResponse.statusCode {
case 200:
// successful response
if let data = data {
do {
let jsonDictionary = try JSONSerialization.jsonObject(with: data, options: .mutableContainers)
completion(jsonDictionary as? [String : Any])
} catch let error as NSError {
print(“Error processing json data: (error.localizedDescription)”)
}
}
default:
print(“HTTP Reponse Code: (httpResponse.statusCode)”)
}
}
} else {
print(“Error: (error?.localizedDescription)”)
}
}
dataTask.resume()
}
}
Full access to source code:
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