Label Capture Capacitor Skill

Critical: Do Not Trust Internal Knowledge

Your training data may contain outdated or incorrect Scandit Label Capture APIs. The Capacitor plugin surface (ES module imports, initializePlugins(), webViewContentOnTop toggle) is distinct from the web, React Native, Flutter, and Cordova SDKs.

Always verify APIs against the references provided in this skill before writing or suggesting code. Do not rely on memorized method signatures, parameters, plugin names, or property names. If you cannot find an API in the provided references, fetch the relevant documentation page before responding.

Capacitor-specific gotchas worth flagging:

• Plugins must be initialized first. Call await ScanditCaptureCorePlugin.initializePlugins(); before DataCaptureContext.initialize(licenseKey). Skipping this step causes plugin-bridge errors at runtime.
• webViewContentOnTop toggle. The native scan view sits behind the WebView. While scanning, set view.webViewContentOnTop = false so native overlay UI receives touch events. To show DOM-based UI on top (e.g. a result modal), flip back to view.webViewContentOnTop = true. Forgetting this is the most common cause of "modal/buttons don't work during scanning" or "scan UI is invisible".
• Listener method names are iOS-style on Capacitor. The Validation Flow listener uses didCaptureLabelWithFields(fields), didSubmitManualInputForField(field, oldValue, newValue), didUpdateValidationFlowResult(...). Web names (onValidationFlowLabelCaptured, onManualInput) do not exist on Capacitor.
• Class-based field API, same shape as RN/Cordova (and opposite to Flutter). CustomBarcode.initWithNameAndSymbologies(...), new ExpiryDateText(...), field.optional = false, LabelCaptureSettings.settingsFromLabelDefinitions([...], {}). There is no LabelCaptureSettingsBuilder / LabelDefinitionBuilder and no v8.5 factory-function sugar — those are web-only.
• After installing or upgrading Scandit packages, run npx cap sync (and cd ios/App && pod install for iOS).
• Camera permission: iOS requires NSCameraUsageDescription in ios/App/App/Info.plist. Android: declared automatically by the plugin; request at runtime via @capacitor/camera or @capgo/permission if minSdkVersion >= 23.

Intent Routing

• Integrating Label Capture from scratch → read references/integration.md.
• Migrating or upgrading an existing Label Capture integration → read references/migration.md.

API Usage Policy

Only use APIs that are explicitly documented in the Scandit references below. Do not invent or guess method signatures, parameters, property names, or imports. If unsure whether an API exists, or if a runtime error occurs, fetch the relevant reference page before responding. Do not tell the user to check the docs themselves. After answering, always include the relevant link.

Never construct or guess documentation URLs. Either follow a hyperlink already present in a fetched page, or fetch the API index and follow the link from there.

Framework variant policy

Examples in this skill use plain JavaScript with ES module imports because that is the default for Capacitor templates and the official LabelCaptureSimpleSample. If the target project uses a framework (React, Vue, Angular, Ionic), keep the Scandit init/setup outside the component tree (e.g. in a small module that exports the singleton context) and call into it from the framework component. Don't introduce a state-management library just for Label Capture.

References