ESTabBarController is an open source Swift based component from Vincent Li for creating customizable tab bars with an extensive feature set.
ESTabBarController has extensive animation support, and includes support for animations created using Lottie that allows the creation of animations using Adobe After Effects.
Other features of ESTabBarController include enlarged center buttons, overlay hints, custom click events, and notification animations.
This animation from the readme shows a tab bar with an animation created using Lottie:
You can find ESTabBarController on Github here.
A nice animation component for highly custom tab bars.
Original article: ESTabBarController – Custom Swift Based Tab Bar Component With Support For Complex Animations
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