Swift
This blog post just talk about how to install Swift and Vapor on Ubuntu 20.04. Let's install Swift first, 1. Install some dependencies including clang and Python components sudo apt install clang libpython2.7 libpython2.7-dev 2. Download Swift for Ubuntu 20.04 from [Download Swift](https:
Swift
A stack is a last-in-first-out (LIFO) collection, which means the last thing we pushed is the first thing that gets popped off. If you used UINavigationController before, probably you used the method pushViewController(_:animated:) to push a view controller onto the navigation stack, and then used method popViewController(animated:) to
iOS
NSCache is a mutable dictionary that you could use to cache some data that are expensive to create, so it could improve your app performance. If memory is needed by other applications, it would remove some items from the cache, minimizing its memory footprint, then some values need to be
iOS
You might find out that the private method of UIView recursiveDescription is useful, especially when you want to debug your view hierarchy. You could run the following command from the LLDB prompt in Xcode: po view.value(forKey: "recursiveDescription")! It would print the view hierarchy for you, all
iOS
There is an instance method of UIScrollView called setContentOffset(_:animated:). As UITableView is a subclass of UIScrollView, you could also use this method. If you need to scroll the table view to the top, you just call this method like below: tableView.setContentOffset(.zero, animated: true) Hope this helps, Michael
iOS
As you already know that Swift 3 is released, I guess you guys are busy migrating your project to Swift 3 now. So this post I just list some issues I came across during migrating to Swift 3. 1.Instance method 'application(:didFinishLaunchingWithOptions:)' nearly matches optional requirement '
iOS
Swift是Apple在今年的WWDC推出的一门新的编程语言，它的1.0版本跟着Xcode 6正式发布了。本文主要列出一些关于Swift的学习资源。 * Apple官方推出的iBook The Swift Programming Language web版 The Swift Programming Language * Using Swift with Cocoa and Objective-C * Swift Programming Books * WWDC关于Swift的Session 1. Introduction to Swift 2. Intermediate Swift 3. Advanced Swift *
