How the Threads App Was Built
Two things stand out for Threads on iOS:
- Threads has 0 dynamic libraries, whereas the Facebook app which heavily utilizes dynamic frameworks.
- Threads has one of the largest plugins we’ve ever seen.
BarcelonaShareExtensionis 81 MB.[…]
As with the Android app, it looks like they were able to share significant amounts of code between Threads & Instagram to help speed up development. Threads team wanted to move fast and took whatever code it could from Instagram and shoved it where it needed to go.
99% native, with a home grown cross-platform solution for a few lightweight flows (think tables or reporting)
We utilized a bunch of existing obj-c/obj-c++ things within IG, but 95% of the new code we wrote was Swift.
We’ll have an eng blog post coming eventually. Mostly Swift, almost all UIKit, a dash of SwiftUl.
Previously:
Update (2023-07-14): Ahmad Shadeed:
One of the most noteworthy use cases of CSS Grid in a production app is found in Threads. CSS Grid is used to build the post layout.
[…]
That line connecting my avatar to Mark’s one is an SVG path.
