iOS Office Hours

Notes: 11. iOS Office Hours: July 24, 2020

• 4:12 - "When running an application on iPad, I am getting significantly more lag on a custom view than on iPhone. How would one go about troubleshooting UI lag for custom views? What are common factors that contribute to UI lag (Impact of things like rounded edges/shadows/# of elements)? Does iPhone/iPad process visuals/UI in a different way that requires design consideration? - Harmonsam"
• 16:28 - "What does it mean when UI is pulling the dimension/size from a nib file instead of the expected constrained value? - Harmonsam"
• 20:30 - "What is the "proper" way to handle device orientation changes? - Harmonsam"
• 24:50 - "When making a model file in my app and deciding to use either a struct or a class, how do you make a decision on which to use? - Jocelyn"
• 42:02 - "Is there a way to remove a specific notification from Notification Center via Push extension service - Yuxing"
• 46:00 - "What options are there to show a table or collection view of running gifs (not static images) downloaded from the internet inside an app? - Danijela"

Links shared during the session:

Scott

• Getting Started with Instruments
• https://scotteg.github.io/protocol-oriented-programming
• https://developer.apple.com/videos/play/wwdc2016/416

Libranner

• https://developer.apple.com/documentation/uikit/uiview/1622512-updateconstraints
• https://developer.apple.com/documentation/uikit/uicontentcontainer/1621511-willtransition
• https://developer.apple.com/videos/play/wwdc2016/416
• https://www.raywenderlich.com/8440907-getting-started-with-the-viper-architecture-pattern

Jari

• https://www.youtube.com/watch?v=iLDldae64xE
• https://gist.github.com/MrLotU/c5c26d60a43dc695eba7366e764114cc

Chuck

• https://github.com/swiftgif/SwiftGif/blob/master/SwiftGifCommon/UIImage%2BGif.swift