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![// AppDelegate
func application(_ application: UIApplication,
continue userActivity: NSUserActivity,
restorationHandler: @escaping ([Any]?) -> Void) -> Bool
{
if userActivity.activityType == NSUserActivityTypeBrowsingWeb,
let webpageURL = userActivity.webpageURL
{
// separate webpageURL using NSURLComponents
// present the correct View Controller if valid
// otherwise, open link in Safari
}
return false
}](https://image.slidesharecdn.com/featuresnotapps-161023235133/75/Build-Features-Not-Apps-58-2048.jpg)
![CREATING AN ACTIVITY
// GelatoDetailViewController
override func viewDidLoad() {
super.viewDidLoad()
// other config here
let activity = NSUserActivity(activityType: "com.natashatherobot.GelatoFinder.gelato")
// will show up as this in Spotlight Search Results
activity.title = gelato.name
// Other keywords to search by
activity.keywords = Set([gelato.name, "gelato"])
// should be handed off to another device?
activity.isEligibleForHandoff = true
// should be indexed in App History?
activity.isEligibleForSearch = true
// should be eligible for indexing for any user of this application?
activity.isEligibleForPublicIndexing = true
// Avoid deallocating before indexing,
// global variable declared in UIResponder class
userActivity = activity
// don't forget to activate!
userActivity!.becomeCurrent()
}](https://image.slidesharecdn.com/featuresnotapps-161023235133/75/Build-Features-Not-Apps-64-2048.jpg)
![SAVE UNIQUE INFO
// GelatoDetailViewController
override func viewDidLoad() {
// create activity and other config here
activity.delegate = self
activity.needsSave = true
// assign to userActivity, etc
}
extension GelatoDetailViewController: NSUserActivityDelegate {
func userActivityWillSave(_ userActivity: NSUserActivity) {
// info needed to recreate activity!
userActivity.userInfo = ["index": gelatoIndex]
}
}](https://image.slidesharecdn.com/featuresnotapps-161023235133/75/Build-Features-Not-Apps-65-2048.jpg)
![RESTORE ACTIVITY
// AppDelegate
func application(_ application: UIApplication,
continue userActivity: NSUserActivity,
restorationHandler: @escaping ([Any]?) -> Void) -> Bool
{
let mainController = (window!.rootViewController! as! UINavigationController).viewControllers.first
mainController?.restoreUserActivityState(userActivity)
return true
}](https://image.slidesharecdn.com/featuresnotapps-161023235133/75/Build-Features-Not-Apps-66-2048.jpg)
![RESTORE ACTIVITY
// GelatoListTableViewController
override func restoreUserActivityState(_ activity: NSUserActivity) {
if let index = activity.userInfo?["index"] as? Int {
searchedGelatoIdentifier = index
performSegue(withIdentifier: "showGelato", sender: self)
}
}](https://image.slidesharecdn.com/featuresnotapps-161023235133/75/Build-Features-Not-Apps-67-2048.jpg)
![RESTORE ACTIVITY
// GelatoListTableViewController
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if let gelatoDetailVC = segue.destination as? GelatoDetailViewController {
let index = tableView.indexPathForSelectedRow?.row ?? searchedGelatoIdentifier ?? 0
gelatoDetailVC.gelato = gelatoFlavors[index]
gelatoDetailVC.gelatoIndex = index
}
}](https://image.slidesharecdn.com/featuresnotapps-161023235133/75/Build-Features-Not-Apps-68-2048.jpg)
![// AppDelegate
func application(_ application: UIApplication,
continue userActivity: NSUserActivity,
restorationHandler: @escaping ([Any]?) -> Void) -> Bool
{
if userActivity.activityType == NSUserActivityTypeBrowsingWeb,
let webpageURL = userActivity.webpageURL
{
// separate webpageURL using NSURLComponents
// present the correct View Controller if valid
// otherwise, open link in Safari
}
return false
}](https://crownmelresort.com/image.slidesharecdn.com/featuresnotapps-161023235133/75/Build-Features-Not-Apps-58-2048.jpg)
![CREATING AN ACTIVITY
// GelatoDetailViewController
override func viewDidLoad() {
super.viewDidLoad()
// other config here
let activity = NSUserActivity(activityType: "com.natashatherobot.GelatoFinder.gelato")
// will show up as this in Spotlight Search Results
activity.title = gelato.name
// Other keywords to search by
activity.keywords = Set([gelato.name, "gelato"])
// should be handed off to another device?
activity.isEligibleForHandoff = true
// should be indexed in App History?
activity.isEligibleForSearch = true
// should be eligible for indexing for any user of this application?
activity.isEligibleForPublicIndexing = true
// Avoid deallocating before indexing,
// global variable declared in UIResponder class
userActivity = activity
// don't forget to activate!
userActivity!.becomeCurrent()
}](https://crownmelresort.com/image.slidesharecdn.com/featuresnotapps-161023235133/75/Build-Features-Not-Apps-64-2048.jpg)
![SAVE UNIQUE INFO
// GelatoDetailViewController
override func viewDidLoad() {
// create activity and other config here
activity.delegate = self
activity.needsSave = true
// assign to userActivity, etc
}
extension GelatoDetailViewController: NSUserActivityDelegate {
func userActivityWillSave(_ userActivity: NSUserActivity) {
// info needed to recreate activity!
userActivity.userInfo = ["index": gelatoIndex]
}
}](https://crownmelresort.com/image.slidesharecdn.com/featuresnotapps-161023235133/75/Build-Features-Not-Apps-65-2048.jpg)
![RESTORE ACTIVITY
// AppDelegate
func application(_ application: UIApplication,
continue userActivity: NSUserActivity,
restorationHandler: @escaping ([Any]?) -> Void) -> Bool
{
let mainController = (window!.rootViewController! as! UINavigationController).viewControllers.first
mainController?.restoreUserActivityState(userActivity)
return true
}](https://crownmelresort.com/image.slidesharecdn.com/featuresnotapps-161023235133/75/Build-Features-Not-Apps-66-2048.jpg)
![RESTORE ACTIVITY
// GelatoListTableViewController
override func restoreUserActivityState(_ activity: NSUserActivity) {
if let index = activity.userInfo?["index"] as? Int {
searchedGelatoIdentifier = index
performSegue(withIdentifier: "showGelato", sender: self)
}
}](https://crownmelresort.com/image.slidesharecdn.com/featuresnotapps-161023235133/75/Build-Features-Not-Apps-67-2048.jpg)
![RESTORE ACTIVITY
// GelatoListTableViewController
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if let gelatoDetailVC = segue.destination as? GelatoDetailViewController {
let index = tableView.indexPathForSelectedRow?.row ?? searchedGelatoIdentifier ?? 0
gelatoDetailVC.gelato = gelatoFlavors[index]
gelatoDetailVC.gelatoIndex = index
}
}](https://crownmelresort.com/image.slidesharecdn.com/featuresnotapps-161023235133/75/Build-Features-Not-Apps-68-2048.jpg)
Uploaded byNatasha Murashev
Build Features Not Apps
The document emphasizes the importance of building features rather than apps, highlighting that most smartphone users download very few apps monthly and that app retention is low. It discusses the transformative impact of speech recognition accuracy and user engagement strategies, like offering sticker features that significantly boost user acquisition. Additionally, it covers technical implementations like NSUserActivity for handoff functionalities and cross-platform capabilities in app development.
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Build Features Not Apps
- 1.
- 2. SWIFT ROBOT ▸ NatashaTheRobot.com ▸@NatashaTheNomad ▸ This Week in Swift ▸ Swift Jobs ▸ try! Swift
- 4. Most smartphone usersdownload 0 apps per month
- 5. An average apploses up to 95% of users within the first month
- 6.
- 9.
- 10.
- 14.
- 17. "As speech recognitionaccuracy goes from say 95% to 99%, all of us in the room will from barely using it today to using it all the time. Most people underestimate the difference between 95% and 99% accuracy - 99% is a game changer" - Andrew NG, Chief Scientist at Baidu
- 18. SIRI INTENTS ▸ Audioor video calling ▸ Messaging ▸ Payments ▸ Searching photos ▸ Workouts ▸ Ride booking
- 19.
- 24. "It took LineMessenger almost four months to find its first two million users ...
- 25. … but afterstickers were launched, it took only two days to find the next million...
- 26. The company nowmakes over $270M a year just from selling stickers."
- 27.
- 29.
- 30.
- 31. ▸ Frameworks allthe things! ▸ Vectorize Images ▸ NSUserActivity FTW
- 34.
- 37.
- 39. let rootURL =FileManager.default(). containerURLForSecurityApplicationGroupIdentifier("group.com.NatashaTheRobot.MyFavoriteGelato")
- 40. let defaults =UserDefaults(suiteName: "group.com.NatashaTheRobot.MyFavoriteGelato")
- 42. ! + ⌚+ #
- 46. MULTIPLATFORM, SINGLE-SCHEME XCODEPROJECTS by Max Howell on PromiseKit.org
- 47. FRAMEWORKS ▸ DRY ▸ AppGroups ▸ iCloud Key-Value Storage ▸ Cross-Platform
- 48.
- 49.
- 54.
- 56. VECTORIZE IMAGES ▸ SingleScale PDFs ▸ Template Image for Icons
- 57.
- 58. // AppDelegate func application(_application: UIApplication, continue userActivity: NSUserActivity, restorationHandler: @escaping ([Any]?) -> Void) -> Bool { if userActivity.activityType == NSUserActivityTypeBrowsingWeb, let webpageURL = userActivity.webpageURL { // separate webpageURL using NSURLComponents // present the correct View Controller if valid // otherwise, open link in Safari } return false }
- 64. CREATING AN ACTIVITY //GelatoDetailViewController override func viewDidLoad() { super.viewDidLoad() // other config here let activity = NSUserActivity(activityType: "com.natashatherobot.GelatoFinder.gelato") // will show up as this in Spotlight Search Results activity.title = gelato.name // Other keywords to search by activity.keywords = Set([gelato.name, "gelato"]) // should be handed off to another device? activity.isEligibleForHandoff = true // should be indexed in App History? activity.isEligibleForSearch = true // should be eligible for indexing for any user of this application? activity.isEligibleForPublicIndexing = true // Avoid deallocating before indexing, // global variable declared in UIResponder class userActivity = activity // don't forget to activate! userActivity!.becomeCurrent() }
- 65. SAVE UNIQUE INFO //GelatoDetailViewController override func viewDidLoad() { // create activity and other config here activity.delegate = self activity.needsSave = true // assign to userActivity, etc } extension GelatoDetailViewController: NSUserActivityDelegate { func userActivityWillSave(_ userActivity: NSUserActivity) { // info needed to recreate activity! userActivity.userInfo = ["index": gelatoIndex] } }
- 66. RESTORE ACTIVITY // AppDelegate funcapplication(_ application: UIApplication, continue userActivity: NSUserActivity, restorationHandler: @escaping ([Any]?) -> Void) -> Bool { let mainController = (window!.rootViewController! as! UINavigationController).viewControllers.first mainController?.restoreUserActivityState(userActivity) return true }
- 67. RESTORE ACTIVITY // GelatoListTableViewController overridefunc restoreUserActivityState(_ activity: NSUserActivity) { if let index = activity.userInfo?["index"] as? Int { searchedGelatoIdentifier = index performSegue(withIdentifier: "showGelato", sender: self) } }
- 68. RESTORE ACTIVITY // GelatoListTableViewController overridefunc prepare(for segue: UIStoryboardSegue, sender: Any?) { if let gelatoDetailVC = segue.destination as? GelatoDetailViewController { let index = tableView.indexPathForSelectedRow?.row ?? searchedGelatoIdentifier ?? 0 gelatoDetailVC.gelato = gelatoFlavors[index] gelatoDetailVC.gelatoIndex = index } }
- 70. NSUSERACTIVITY ▸ Handoff ▸ UniversalLinks ▸ Search ▸ Location ▸ Contextual Reminders ▸ Contact Interactions
- 72. ▸ Frameworks allthe things! ▸ Vectorize Images ▸ NSUserActivity FTW
- 73.