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Share extension: NSExtensionActivationRule, data handling, UI. Use when implementing app features related to share extensions.
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| name | share-extension |
| description | Share extension: NSExtensionActivationRule, data handling, UI. Use when implementing app features related to share extensions. |
| tags | swiftui, ios, extensions |
| platforms | ios |
SHARE EXTENSION: SETUP: Requires separate extension target (kind: "share" in plan extensions array). The extension receives shared content (URLs, text, images) from other apps via the share sheet.
PRINCIPAL CLASS (in extension target): class ShareViewController: SLComposeServiceViewController { override func isContentValid() -> Bool { return contentText.count > 0 // Validate before enabling Post button }
override func didSelectPost() {
// Access shared items
guard let item = extensionContext?.inputItems.first as? NSExtensionItem,
let provider = item.attachments?.first else {
extensionContext?.completeRequest(returningItems: [], completionHandler: nil)
return
}
if provider.hasItemConformingToTypeIdentifier("public.url") {
provider.loadItem(forTypeIdentifier: "public.url") { [weak self] url, _ in
// Handle URL
self?.extensionContext?.completeRequest(returningItems: [], completionHandler: nil)
}
}
}
override func configurationItems() -> [Any]! {
return [] // Return SLComposeSheetConfigurationItem array for optional UI
}
}
INFO.PLIST KEYS (in extension's Info.plist via XcodeGen): NSExtensionPrincipalClass: $(PRODUCT_MODULE_NAME).ShareViewController NSExtensionActivationRule: NSExtensionActivationSupportsWebURLWithMaxCount: 1 NSExtensionActivationSupportsText: true
APP GROUP: Use AppGroup entitlement to share data between main app and extension.
SHARE EXTENSION: SETUP: Requires separate extension target (kind: "share" in plan extensions array). The extension receives shared content (URLs, text, images) from other apps via the share sheet.
PRINCIPAL CLASS (in extension target): class ShareViewController: SLComposeServiceViewController { override func isContentValid() -> Bool { return contentText.count > 0 // Validate before enabling Post button }
override func didSelectPost() {
// Access shared items
guard let item = extensionContext?.inputItems.first as? NSExtensionItem,
let provider = item.attachments?.first else {
extensionContext?.completeRequest(returningItems: [], completionHandler: nil)
return
}
if provider.hasItemConformingToTypeIdentifier("public.url") {
provider.loadItem(forTypeIdentifier: "public.url") { [weak self] url, _ in
// Handle URL
self?.extensionContext?.completeRequest(returningItems: [], completionHandler: nil)
}
}
}
override func configurationItems() -> [Any]! {
return [] // Return SLComposeSheetConfigurationItem array for optional UI
}
}
INFO.PLIST KEYS (in extension's Info.plist via XcodeGen): NSExtensionPrincipalClass: $(PRODUCT_MODULE_NAME).ShareViewController NSExtensionActivationRule: NSExtensionActivationSupportsWebURLWithMaxCount: 1 NSExtensionActivationSupportsText: true
APP GROUP: Use AppGroup entitlement to share data between main app and extension.