1/7/2024 0 Comments Simpholders xcode8Provides the UNNotificationContentExtension protocol Use in conjunction with “mutable-content: 1” in the aps portion of an APNS payload. Allows you to process the payload of a push notification before it is presented (eg: end-to-end encryption or notification attachments). UNNotificationServiceExtension - Entry point for service extensions. UNNotificationAction - represents a task you can perform in response to a notification UNNotificationCategory - defines a type of notification, allows actionable notifications and content extensions UserNotificationCenter:didReceiveNotificationResponse:withCompletionHandler UserNotificationCenter:willPresentNotification:withCompletionHandler: UNUserNotificationCenterDelegate Protocol Push (UNPushNotificationTrigger is not instantiated by apps) Scheduling via requests (by providing content and triggers) WatchOS: Support for forwarded notifications and local notifications on the watch IOS: Full support for scheduling and management of notifications Provides a single notifications API across iOS, watchOS and tvOS Uses JSON Web Tokens (libraries widely available to assist with token generation)įor server-side solutions where using a certificate isn’t practical/feasibleĪddresses issue of certificate expiration (though tokens also expire, new ones can be generated on the fly) Scheduling and handling within Extensions UserNotifications (and UserNotificationsUI) Framework (Unifies Remote and Local Notifications)Īccess to user-defined notification settings ![]() What’s New in the Apple Push Notification Service "Weak, Strong, Unowned, Oh My!" - a Guide to References in Swift by Hector Matosīrief breakdown of WWDC sessions related to notifications ![]() Visual Debugging with Xcode WWDC 2016 Session 410 demonstrates the use of the new Memory Graph Debugger starting at about 24 minutes in Use an unowned reference when you know that the reference will never be nil once it has been set during initialization.” Strong Reference CyclesĬlosure example with capture list weak and unownedĪpple says, “Use a weak reference whenever it is valid for that reference to become nil at some point during its lifetime. If you’re intentionally holding onto objects, consider implementing an observer for UIApplicationDidReceiveMemoryWarningNotification to release them Drill into the code and look for ways to release unnecessary allocations Look for the biggest offenders (sorting) I have unbounded memory growth, now what? Simulate Memory Warning (did it help, do you have anything observing for this?) As you do multiple generations you will see only the new allocations since the last generations Tracks allocations still resident when the generation is marked Unbounded Memory Growth (memory growth without a chance to collect (deallocate) memory Tough to find offending code without help from tools WWDC 2016 Session 418 - Using Time Profiler in Instrumentsĭiscussion - Allocations and Leaks instruments Symbol Name - The thing represented in the current row (may be a function, method, closure/block, thread, or app) Self Weight - Aggregate summary of samples in which the function was at the top of the call stack ![]() Weight - Percentage of samples in which a function appeared and an aggregate summary of samples (count * sample interval) Provides a detail view listing call trees, optionally separated by thread and/or state, allowing the developer to drive down into calls to identify areas that may need to be optimized No distinction between a fast function called many times and a slow function called few timesĮxtremely fast functions may not get sampled at all, if they happen to occur in between samples They don’t track the duration of a function call, but rather how many times when sampled was the application currently in said function call. Periodically samples the call stack to determine where an app is spending its time Plots data along the time your app was sampledĭisclosure arrow can toggle display of just the current run or of all runs in the trace documentĬontents vary by Instrument, but this will generally be a table with some representation of the sampled dataĮxtended detail (often the heaviest stack trace)Īn Instrument providing sample-based analysis of an application’s activity But first: a brief rundown of the Instruments UI
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