Both class and structure can do: Define properties to store values Define methods to provide functionality Be extended Conform to protocols Define intialisers Define Subscripts to provide access to their variables Only class can do: Inheritance Type…

使用cocopod导入第三方swift包后,编译报以下错误: The "Swift Language Version" (SWIFT_VERSION) build setting must be set to a supported value for targets which use Swift. This setting can be set in the build settings editor. 解决方法如下:(上一次没有注意到图片没有传上来,我说咋有人对我倒手指) 选择一…

转发链接:https://blog.csdn.net/nathan1987_/article/details/79757368 The “Swift Language Version” (SWIFT_VERSION) build setting must be set to a supported value for targets which use Swift. This setting can be set in the build settings editor.…

先看看错误提示 这里Alamofire库报错,原因打开工程会Xcode会提示你覆盖到最新的3.0版本.但是仍然有些框架会出现一些问题 解决办法: 选择Pods - ReactiveCocoa - Swift Compiler -Version - Use Legacy Swift Language Version,把Unspecified改成NO.…

API reference Swift UIKit Swift 菜鸟教程 Great Installed Visual Studio Code, I found I cannot open it from Terminal. The solution is:  http://stackoverflow.com/questions/31630762/launch-visual-studio-code-editor-from-terminal-as-root-on-os-x, by adding f…

用xcode编译后会出现这个错误的情况: 1.使用cocopod导入第三方swift包后,swift的包是比较老的swift开发的. 2.用xcode9 打开老的swift(比如swift2.0)的工程的时候 解决方案如下: 在xcode中对应的targets下面的build settings 里面 设置swift的语言版本,就ok.建议设置成最新的swift语言版本. 如图  …

解决方案 选择4.0 然后报错17个,类似以下这样的错误 'AVMediaTypeVideo' has been renamed to 'AVMediaType.video' 根据提示更改 AVMediaTypeVideo为AVMediaType.video这个大部分是版本升级语法改变的错误,我自己是手动改了代码…

swift面向协议编程的根本原因在于值类型的存在:面向对象必须要有引用类型的支持: Protocol Oriented approach was introduced to resolve some issues in programming and it also differs in various scenarios when compared to Object-Oriented programming. So let’s dive into the topic. What is Pro…

最近Xcode升级了,出现了各种蛋疼的错误提示,今天遇到个导入框架出现了提示Swift版本的问题,具体如下: "Use Legacy Swift Language Version" (SWIFT_VERSION) is required to be configured correctly for targets which use Swift. Use the [Edit > Convert > To Current Swift Syntax-] menu to choo…

下载 Xcode 8,配置 iOS 10 和 Swift 3 (可选)通过命令行编译 除 非你想使用命令行编译,使用 Swift 3.0 的工具链并不需要对项目做任何改变.如果你想的话,打开 Xcode-beta,然后从顶部菜单栏中选择 Xcode > Preferences,接着选择 Location,在页面的底部,你会看到「Command Line Tool」这行设置,请在这里选择 Xcode 8.0. 现在,在 Terminal 使用命令行找到工程所在的文件夹,调用 xcodebuild…