What is the use of Ticker in Flutter?

In Flutter, a Ticker is a mechanism for synchronizing animations with the device’s refresh rate. It’s a class that can be used to drive an animation or a sequence of animations over time.

The Ticker class works by calling a callback function on each frame of the animation. This callback function is typically used to update the state of a widget, which in turn causes the widget to redraw itself with its new state. By using a Ticker, you can create smooth, high-performance animations that are synchronized with the refresh rate of the device’s display.

To use a Ticker in Flutter, you need to create an instance of the Ticker class, passing in a callback function that will be called on each frame of the animation. You can then start the animation by calling the start() method on the Ticker instance, and stop it by calling the stop() method.