编程工具

热重载HotReload

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通过InjectionIII实现iOS App的Hot Reload

一、设置

https://github.com/krzysztofzablocki/Inject

Individual Developer setup (once per machine)

If anyone in your project wants to use injection, they only need to:

  • You must add “-Xlinker -interposable” (without the double quotes and on separate lines) to the “Other Linker Flags” of all targets in your project for the Debug configuration (qualified by the simulator SDK to avoid complications with bitcode), refer to InjectionForXcode documentation if you run into any issues
  • Download newest version of Xcode Injection from it’s GitHub Page
  • Unpack it and place under /Applications
  • Make sure that the Xcode version you are using to compile our projects is under the default location: /Applications/Xcode.app
  • Run the injection application
  • Select open project / open recent from it’s menu and pick the right workspace file you are using

After choosing the project in Injection app, launch the app

  • If everything is configured correctly you should see similar log in the console:
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> 💉 InjectionIII connected /Users/merowing/work/SourceryPro/App.xcworkspace
> 💉 Watching files under /Users/merowing/work/SourceryPro
>

1、项目中设置：

1、Podfile

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pod 'InjectHotReload'

2、在Xcode – Targets – Build Settings – “Other Linker Flags” 中添加

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-Xlinker
-interposable

3、在项目启动的时候，代码

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#if DEBUG
   [[NSBundle bundleWithPath:@"/Applications/InjectionIII.app/Contents/Resources/iOSInjection.bundle"] load];
#endif

2、设置监听

1、到 https://github.com/johnno1962/InjectionIII 中的 Release 里下载App

2、打开APP，选择要监听的位置（Open Project），并确认 File Watcher 是打开的。

image-20250315000808395

3、运行效果

1、运行项目，岂会打出如下日志

image-20250315002604154

确认Injection connected有没有打印，也就是说有没有真的运行这个工具。

附：

2、执行保存，会有截图中的1效果。

执行修改2处的颜色，3处的文字，发现并没有更新。需要退出重进才能看到修改。

即：

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如果修改的是一个普通页面的内容，最好是退出这个页面，再进入这个页面
如果修改的是cell / item上面的内容，需要上下滚动才能看到效果

image-20250315002204989

End