Schemetrical questions

Schemetrical answers

• Should app extensions have their own Localizable.strings?
• How can I animate my View Controller's background to fade among multiple colors?
• Update to Xcode 6.3 breaks app - Google GTLTouchStaticLib "not equal to a null pointer is always true"
• Swift - what is downcasting? why do i need to downcast the cell in tableview?
• How to check if a constraint already exists inside a view?
• Properties and Allocating Memory
• Use of unresolved identifier NSCalendarUnitDay
• Advantages of setting Constraints vs Setting Frames of UIViews
• "No provisioned iOS devices are available with a compatible iOS version" after upgrade
• In Swift 4.1 how do you request write-only permission for the photo library?