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How to check object is nil or not in swift? 繁体
2014年11月01 - Suppose I have String like : 假设我有如下字符串: var abc : NSString = "ABC" and I want to check that it is

Font works in storyboard but fails to work in iOS simuator (Xcode 8) 繁体
2017年06月10 - I've been working on the launch screen of an app and I ran across a problem. The custom font that I

How to update each custom tableview cell data at the same time? 繁体
2017年06月12 - I am using Xcode 8.2.1 with Swift 3. I have one custom UITableViewCell containing a UITextView. When I type into the textView, the custom cell automatically grows. This part is working fine. I also wa

Why is “data” not a dictionary 繁体
2016年01月28 - I'm trying to parse JSON that I'm getting from an API using SwiftyJSON and it's giving me this error

Use MapKit to generate a route with a specific distance 繁体
2014年10月21 - Getting a lat/long coord a specific distance away from the users current location is easy enough, bu

Importing 3rd party framework in a Playground's “SupportCode.swift 繁体
2015年03月18 - Is there a way to include a (non-Apple) framework in the "SupportCode.swift" file, in the Sources directory of a Playground? 有没有办法在PlayC的Sources目录中的“SupportCode.swift”文件中包含一个(非Apple)框架? While the fr

Why use delegate and protocol instead of just passing an instance in Swift? 繁体
2014年07月25 - I was trying to pass around variables between views in Swift, and ran into the rather abstract concept of protocols and delegates. 我试图在Swift的视图之间传递变量,并遇到了相当抽象的协议和委托概念。 Then I tried storing a referen

cocos2d swift how to present a scene? 繁体
2015年05月08 - Just started with coco2d/swift and am having trouble presenting a scene. I created a new one in spritebuilder, published it, and am loading it with CCReader as a scene. When I try to present it, it wo

How to hide a bar button item for certain users 繁体
2015年01月11 - I have a settings bar button item (set as left bar button item). I only want to display it if the us

Swift 关于Protocol扩展的静态特性 繁体
2017年06月26 - 实验样本代码//声明一个协议protocol SharedString { func methodForOverride() -> Void func methodW


 
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