TechRD.in

Topic

programming

A collection of 23 issues

How I hack Pacific Coffee and get free drinks( a lot of)?

First of all. The story bellow is done by my own payment as it's an experiment. Also it just work. Also, I will provide a very simple solution for such system. Please don't miss it. The story began in an evening, I went to Pacific Coffee

How to make a Message framework? Beginning and planing

> Let's make a Message framework and do some practice on architecture. What we will cover in this series? * Planing and architecture of a framework * Kick start a project * Dirty work of setting up a CI * Make a Messaging framework Planing We are going to write an open

Throw inside a do block and catch it back in Swift? Yes

Lazy forks, it's just simple topic, but I did the experiment for you: enum SomeError: Error { case notBig case veryBig } func someErrorFucntion() { do { throw SomeError.veryBig } catch { print(error.localizedDescription) } } someErrorFucntion() // And it will print veryBig!!

How I use gyb to achieve a more flexible localization in Swift

Localization in iOS is so simple by using system provided mechanism. But it can be a nightmare if you want to achieve a more flexible goal with a so far convenient way to access. Compare to lots of solution around, I decide to use gyb to make my baby work

Don't write Swift 3 on your "wish list"

I've been recently invited by many of company those who need to find a right iOS developer. The interesting part is, in almost all of their skill lists, they all want a swift 3 experiences, which, lead me to a very confusing thought, why would they ask this

Fewer "guard" more flatMap

Swift's guard syntax is good, I admitted. But it's not always the best choice in some cases. Let's consider: something.callback() { someOther:SomeOther? in guard let someOther = someOther else { return } functionTakeSomeOther(someOther) } Indeed, "optional chaining" provide us a more convenience way to

Empower your welcome screen video with CIFilter

> Many of us like our app look trendy. How to be "trendy"? Put a video on the welcome our signup screen is quite a good answer. I am going to share my small class to enable easy video looping and block style CIFilter applying.Before I share

Map Map Map better in Swift

> Map function is quite a convenience method that often used in functional(mainly) programming. In Swift, all collection types(Array,Dictionary,Set...) support map. It take a closure that take element type from T and output type U then transform from [T] to [U]. -------------------------------------------------------------------------------- In most case, you

書單紙

書讀唔多，只講最正： Programming: * The Swift Programming Language 1,2,2.2 * Objective-C Programming Language 2.0 Edition * Seven Programming Language in Seven Week * Think functional * Functional Programming with Swift * C程序設計 * 三十日自制操作系統 * Code * Code complete(ing) * Zero to one (其實應該放落文化) * Algorithm及Structure類睇得好雜同散，亦都無一本本頭到尾咁睇，就費事講。設計視覺： * 設計中的設計 * 明室攝影札記 * 論攝影 * 設計的界限 * 犬之記憶 * Another way

Modify Images of NSAttributeString Loaded From HTML in ease

< div>Sometime we may want to load a html file and show it straightly on textview, fast and convenient. Also we might want to modify the images that automatically load from the tags (resize the image, filtering...). Some may suggest you to use a html parser and set