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Configure SwiftUI Hot Reload

Syntax highlight & code completion​

Install Zed swift extension

Install xcode-build-server

brew install xcode-build-server

Run in the project root dir, will generate buildServer.json:

xcode-build-server config -scheme <Project Scheme>

Install InjectionIII

InjectionIII settings​

Xcode project settings:

Build Settings -> All -> Linking-General -> Other Linker Flags add -Xlinker -interposable

linker-setting.png

If >= Xcode 16.3, add User-Defined Setting EMIT_FRONTEND_COMMAND_LINES to YES, only in Debug is enough

user-customed.png

If run on a real device, such as a macOS app,

  • Turn off App Sandbox and Hardened Runtime in Signing & Capabilities signing.png

  • Set User Script Sandboxing to NO in Build Settings user-script.png

    warning

    Remember to turn on the above two when on release

    • Add Scripts in Build Phases add-script.png

      RESOURCES=/Applications/InjectionIII.app/Contents/Resources
      if [ -f "$RESOURCES/copy_bundle.sh" ]; then
      "$RESOURCES/copy_bundle.sh"
      fi
      • Add the code blew in App init method 
        @main
        struct testApp: App {
            init() {
                #if DEBUG
                Bundle(path: "/Applications/InjectionIII.app/Contents/Resources/iOSInjection.bundle")?.load()
                //for tvOS:
                Bundle(path: "/Applications/InjectionIII.app/Contents/Resources/tvOSInjection.bundle")?.load()
                //Or for macOS:
                Bundle(path: "/Applications/InjectionIII.app/Contents/Resources/macOSInjection.bundle")?.load()
                #endif
            }

            var body: some Scene {
                WindowGroup {
                    ContentView()
                }
            }
        }

Develop SwiftUI App in other Editors​

xcodebuild command line​

Reference

// list project infomation
xcodebuild -list -project <Project Name>.xcodeproj

// build project debug
xcodebuild -scheme <Project Scheme> -configuration Debug

// run unit test
xcodebuild test -scheme <Project Scheme> -configuration Debug

// run unit test without build
xcodebuild test-without-building -scheme <Project Scheme>

Zed​

tasks.json
[
    {
        "label": "Xcode Build & Run",
        "command": "xcodebuild -scheme note-test -configuration Debug && open $(xcodebuild -scheme note-test -configuration Debug -showBuildSettings 2>/dev/null | grep -m 1 CONFIGURATION_BUILD_DIR | sed 's/.*= //')/note-test.app",
        "use_new_terminal": false,
        "reveal": "no_focus"
    },
    {
        "label": "Xcode Build (Debug)",
        "command": "xcodebuild -scheme note-test -configuration Debug",
        "use_new_terminal": false,
        "reveal": "no_focus"
    },
    {
        "label": "Xcode Run",
        "command": "open $(xcodebuild -scheme note-test -configuration Debug -showBuildSettings 2>/dev/null | grep -m 1 CONFIGURATION_BUILD_DIR | sed 's/.*= //')/note-test.app",
        "use_new_terminal": false,
        "reveal": "no_focus"
    },
    {
        "label": "Xcode Stop",
        "command": "pkill -x $(xcodebuild -scheme note-test -configuration Debug -showBuildSettings 2>/dev/null | grep '^ *PRODUCT_NAME =' | sed 's/.*= //')",
        "use_new_terminal": false,
        "reveal": "no_focus"
    },
    {
        "label": "Xcode Test",
        "command": "swift test",
        "use_new_terminal": false,
        "reveal": "no_focus"
    }
]

Jetbrains​

WIP

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