要想实现命令行控制模拟器需要用的到命令是simctl: Simulators Control 看这命令的意思像是这两个单词的缩写，搭载xcrun命令，可以通过这个命令实现以下功能
- 创建、删除、开启 模拟器
- 添加图片到模拟器
- 安装、卸载、打开、关闭APP
帮助命令
xcrun simctl --help
查看当前有哪些模拟器
xcrun simctl list
截取部分日志如下
== Device Types ==
iPhone 4s (com.apple.CoreSimulator.SimDeviceType.iPhone-4s)
iPhone 5 (com.apple.CoreSimulator.SimDeviceType.iPhone-5)
== Runtimes ==
iOS 8.1 (8.1 - 12B411) - com.apple.CoreSimulator.SimRuntime.iOS-8-1
iOS 9.0 (9.0 - 13A344) - com.apple.CoreSimulator.SimRuntime.iOS-9-0
iOS 10.0 (10.0 - 14A345) - com.apple.CoreSimulator.SimRuntime.iOS-10-0
iOS 11.4 (11.4 - 15F79) - com.apple.CoreSimulator.SimRuntime.iOS-11-4
== Devices ==
-- iOS 8.1 --
iPhone 4s (134D6998-BB21-4E41-BF30-F2475B71518C) (Shutdown)
iPhone 5 (C284C3E1-6297-452C-AADF-2AFA0D3D9931) (Shutdown)
iPhone 5s (1417E9B3-FA40-42D3-BF04-F7DD469DDA7E) (Shutdown)
iPhone 6 (A8BA264E-115F-4B64-85FF-63E1C9B8E4CC) (Shutdown)
-- iOS 10.0 --
iPhone 5 (6B088A91-F77C-4FA6-A6DA-0E4722B11DE5) (Shutdown)
iPhone 5s (38D06629-1F4B-46A2-A986-CBE28503E63F) (Shutdown)
iPhone 6 (598F3D6F-5439-4216-808D-D14857B6B68B) (Shutdown)
iPhone 6 Plus (B79E33B8-0944-4509-8DAA-15D00C3FF8E1) (Shutdown)
iPhone 6s (26A06303-C684-46F1-AF9B-9ECEB737B2AA) (Booted)
-- iOS 11.4 --
iPhone 5s (8B31401D-41BE-40F9-8ED1-F17C93C87F8A) (Shutdown)
iPhone 6 (12D46DEB-71A0-4009-A83D-C96A4AACBD3D) (Shutdown)
搭载查找命令grep可以查看正在使用的模拟器
➜ ~ xcrun simctl list | grep Booted
iPhone 6s (26A06303-C684-46F1-AF9B-9ECEB737B2AA) (Booted)
添加一个模拟器
设备名称、设备类型、设备的操作系统、可以定位出一个设备信息，比如我们要增加一个名为DemoDevice、iPhone 7、iOS 11.4命令如下
➜ ~ xcrun simctl create DemoDevice com.apple.CoreSimulator.SimDeviceType.iPhone-7 com.apple.CoreSimulator.SimRuntime.iOS-11-4
4F5A92A2-8241-4A8E-8A22-2E5A87FECCC0
创建成果的话会返回设备的id这里是4F5A92A2-8241-4A8E-8A22-2E5A87FECCC0
list下
-- iOS 11.4 --
iPhone 5s (8B31401D-41BE-40F9-8ED1-F17C93C87F8A) (Shutdown)
iPhone 6 (12D46DEB-71A0-4009-A83D-C96A4AACBD3D) (Shutdown)
iPhone 6 Plus (40F90FF9-D7F8-4D44-85BB-F69B97909CC3) (Shutdown)
iPhone 6s (61DFD682-9E00-4120-9AAF-132D6F2A2DCD) (Shutdown)
iPhone 6s Plus (648433A5-2CDE-4982-BF00-7F70EA20739F) (Shutdown)
DemoDevice (4F5A92A2-8241-4A8E-8A22-2E5A87FECCC0) (Shutdown)
也可以通过grep搜索一下
➜ ~ xcrun simctl list | grep 4F5A92A2-8241-4A8E-8A22-2E5A87FECCC0
DemoDevice (4F5A92A2-8241-4A8E-8A22-2E5A87FECCC0) (Shutdown)
➜ ~
开启一个模拟器
以刚才那个自己创建的为例子吧
➜ ~ xcrun simctl boot 4F5A92A2-8241-4A8E-8A22-2E5A87FECCC0
15313910142713.jpg
写个图片到刚才的模拟器中
桌面准备一张图片google@2x.png
➜ ~ xcrun simctl addmedia 4F5A92A2-8241-4A8E-8A22-2E5A87FECCC0 ~/Desktop/google@2x.png
打开相册会发现多了一张图片，就不截图了
重置模拟器
重置模拟器的命令
➜ ~ xcrun simctl erase 4F5A92A2-8241-4A8E-8A22-2E5A87FECCC0
如果你的模拟器已经开启的情况下可能会报下面的错误
An error was encountered processing the command (domain=com.apple.CoreSimulator.SimError, code=164):
Unable to erase contents and settings in current state: Booted
提示你的模拟器当前的状态是booted的，所有要先关掉模拟器
➜ ~ xcrun simctl shutdown 4F5A92A2-8241-4A8E-8A22-2E5A87FECCC0
再执行
➜ ~ xcrun simctl erase 4F5A92A2-8241-4A8E-8A22-2E5A87FECCC0
会发现之前的所有的修改都没了
如果发现设备卡住了，可以关掉再重新boot下
通过DerivedData来安装app
（1） 在桌面下新建一个名为TestSimctl的工程
（2）cd到TestSimctl目录下通过build命令来得到DerivedData路径
xcodebuild build -scheme 'TestSimctl' CODE_SIGN_IDENTITY="" CODE_SIGNING_REQUIRED=NO -sdk iphonesimulator11.4
会得到~/Library/Developer/Xcode/DerivedData/TestSimctl-heyedthdtyuorceyxhlduzjcoqol/Build/Products/Debug-iphonesimulator/TestSimctl.app
每个人的机器路径会有些不一样复制一下就好了
（2）通过刚才的DerivedData来安装TestSimctl应用
xcrun simctl install booted ~/Library/Developer/Xcode/DerivedData/TestSimctl-heyedthdtyuorceyxhlduzjcoqol/Build/Products/Debug-iphoneos/TestSimctl.app
15314471990147.jpg
（3）通过bundleid来卸载刚才那个app，我这里是com.TestSimctl
xcrun simctl uninstall booted com.TestSimctl
发现哪个app不见了
（4）通过bundleid来启动刚才app, 先保证已经安装了app
xcrun simctl launch booted com.TestSimctl
会发现已经启动起来了
（4）通过bundleid来关闭已经打开的app
xcrun simctl terminate booted com.TestSimctl
截图功能
➜ TestSimctl git:(master) ✗ xcrun simctl io booted screenshot test.png
Detected file type 'PNG' from extension
Wrote screenshot to: test.png
会发现当前目录下多了一张照片
└── test.png
日志功能
xcrun simctl spawn booted log stream --predicate 'processImagePath endswith "TestSimctl"'
改造下viewcontroller代码
- (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event {
NSLog(@"touchesBegan");
}
重新build后可以发现终端可以看到日志了
删除模拟器
先shutdown
xcrun simctl shutdown 4F5A92A2-8241-4A8E-8A22-2E5A87FECCC0
再删除
xcrun simctl delete 4F5A92A2-8241-4A8E-8A22-2E5A87FECCC0
