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Repeating at a certain time


Repeat every three seconds using Time.
I used it to create an app that functions like a clock.

  1. Create a collection view with custom layouts
  2. UDP communication in Swift and sending a string
  3. Removing @objc inference warnings when migrating from Swift3 to Swift4
  4. Pinch to zoom in and out on an image with UIScrollView
  5. Removing the back button in UINavigationController.
  6. Execute after ○ seconds, execute every second
  7. Setting a header in UITableView