Config
Collapse / Fold
To collapse all the search results in the sidebar navigator, cmd ⌘-click on one of the small hide/show details triangle at the beginning of the line
hold ⌘ to : close a type of warnings
hold shift & ⌘ to : close all types of warnings
Behavior
Don't show issues
On every build xcode will switch to Issues tab in Navigator and it becomes annoying sometimes.
To disable this behavior
Build -> Generates new issues
Uncheck the show navigatior issues checkbox.
Keyboard
Theme
Dracula theme for Xcode is nice.
I customized an pure black OLED theme as well.
For peer programming or presenting code, I sometimes select Presentation theme which quickly increases the font and then I can again revert back to my main theme configs.
Git Config
Sometimes xcode doesn't appropriately picks up the right credentials automatically from Keychain or .ssh configs.
You need to explicitly run this command sometimes in order for Xcode to automatically checkout code and associate certain public private key pair ssh keys with specific hosts it tries to checkout.
Add the key to the Keychain with this command.
ssh-add --apple-use-keychain ~/.ssh/id_github
References
https://blog.appcircle.io/article/maximizing-xcode-efficiency-14-tips-for-boosting-productivity