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Creating Your Own Custom Controls Using IBDesignable in Xcode 6
Have you tried to create a custom control in older versions of Xcode? It’s not that easy. What makes it so hard is that you couldn’t see your design in the Interface Builder. Every time you want to review the design changes, you can only test the control in the simulator. That’s troublesome. You would probably need to spend hours and hours on designing a single component.
