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ios-native

General & other

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Updated 10-15 17:30

About this skill

iOS Native

If the user uses /ios-native install, follow references/install.md.

Build

Use xcodebuild to build the app. First, identify the scheme and workspace/project:

# List available schemes
xcodebuild -list

Build for simulator:

xcodebuild -scheme <SchemeName> -sdk iphonesimulator -configuration Debug -derivedDataPath build build

Running on Simulator (preferred)

List available simulators:

xcrun simctl list devices available

If there is more than one option, ask the user which one to use. Open DeviceHub first, falling back to Simulator.app if it cannot open:

open -a DeviceHub || open -a Simulator

Build the app, boot the selected simulator if needed, then install and launch it with simctl:

xcodebuild -scheme <SchemeName> -sdk iphonesimulator -configuration Debug -derivedDataPath build build
xcrun simctl boot <SimulatorUDID>
xcrun simctl bootstatus <SimulatorUDID> -b
xcrun simctl install <SimulatorUDID> build/Build/Products/Debug-iphonesimulator/<AppName>.app
xcrun simctl launch <SimulatorUDID> <BundleIdentifier>

Skip simctl boot when the selected simulator is already booted. Read <BundleIdentifier> from the built app's Info.plist rather than guessing it.

Running on a Physical Device

Use xcodebuild with -sdk iphoneos and deploy via xcrun:

xcodebuild -scheme <SchemeName> -sdk iphoneos -configuration Debug -derivedDataPath build build
xcrun devicectl device install app --device <DeviceUDID> build/Build/Products/Debug-iphoneos/<AppName>.app

Finding the App Bundle Path

After a successful build, the .app bundle is located at:

build/Build/Products/Debug-iphonesimulator/<AppName>.app   # simulator
build/Build/Products/Debug-iphoneos/<AppName>.app           # device

Gotchas

  • Always run xcodebuild -list first to get the correct scheme name — do not guess it.
  • If the project uses a .xcworkspace (e.g. CocoaPods), pass -workspace <Name>.xcworkspace instead of -project.
  • Use xcrun simctl list devices available to get the exact simulator UDID; native-run may fail when Simulator.app is absent even if DeviceHub opens.
  • Code signing is not required for simulator builds; for device builds, a valid provisioning profile and team ID are needed. If signing fails, inform the user.

Shell command formatting

Always write commands on a single line — no backslash line continuations. The command ACL uses glob patterns without dotAll, so embedded newlines break matching for commands like xcodebuild *. For long output, pipe to tail/head or write to a file.