Tag: iOS
All the articles with the tag "iOS".
iOS push is not one kind of notification: from alerts to communication notifications, image attachments, and Live Activities
From APNs accepting a request, through a Notification Service Extension rewriting content, to iOS deciding how it appears. Alert, silent push, image attachment, communication notification, in-notification reply, time-sensitive, and Live Activity — the mechanisms and when to use them.
VAPKit: Transparent gift animations are two samples from the same frame
A walk through the VAPKit source. H.264 cannot carry Alpha, so VAP paints grayscale transparency into the same image. The player reads vapc, decodes with AVAssetReader, and composites rgbFrame / aFrame in Metal.
NestedPaging: Nested scrolling on a profile page is really just locking contentOffset
A walk through the NestedPaging source. The outer table and child lists both recognize the same vertical gesture; who actually scrolls is decided by offset locking. Header visibility is the only source of truth.