Delightful animations in iOS

We all love animations.On one hand, they help our eyes be guided, but they also bring a nice finishing touch, a bit of extra care, a bit of emotion. We also prefer a lively UI to a static one, a UI that gives us feedback, that interacts back with us. But, as with anything, too much will be harmful, so let's explore a few finishing touches that can be added to an app without overwhelming it.Changing a button's frame and/or color on touchDownWe usually put a button's action on touchUpInside and the reason for that is to give the user a chance to change his mind. But the physical action performed is the actual touch of the button, which is handled by touchDown. At this point, we can have the UI respond to the user's interaction, to let them know something did happen, by modifying the appearance.Don't go overboard with this, though.I'd start with a scale of 0.97, a background alpha change to 0.85, a borderWidth increase of 1 or 2, or a combination of two them — more than two will be too aggressive.

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This article is related to

swift,mobile,ios-programming,ios,design