Basic Syntax of Creating an Animation in Flutter

Create an AnimationController:

final AnimationController _controller = AnimationController(
  duration: Duration(seconds: 1), // Set the duration of the animation
  vsync: this, // Provide a TickerProvider, often you can use 'this'
);

Define the Animation:

final Animation<double> _animation = Tween<double>(
  begin: 0.0, // Starting value of the animation
  end: 1.0,   // Ending value of the animation
).animate(_controller);

Animating an AlertDialog in Flutter involves using the Flutter animations framework to create custom animations for showing and hiding the dialogue. In this article, we are going to add an animation to an AlertDialog. A sample video is given below to get an idea about what we are going to do in this article.