BounceInDown constructor
      
      BounceInDown({ 
    
    
- dynamic key,
- required Widget child,
- Duration duration = const Duration(milliseconds: 1000),
- Duration delay = const Duration(milliseconds: 0),
- dynamic controller()?,
- bool manualTrigger = false,
- bool animate = true,
- double from = 75,
- dynamic onFinish(- AnimateDoDirection direction
 
- Curve curve = Curves.bounceOut,
Implementation
BounceInDown(
    {key,
    required this.child,
    this.duration = const Duration(milliseconds: 1000),
    this.delay = const Duration(milliseconds: 0),
    this.controller,
    this.manualTrigger = false,
    this.animate = true,
    this.from = 75,
    this.onFinish,
    this.curve = Curves.bounceOut})
    : super(key: key) {
  if (manualTrigger == true && controller == null) {
    throw FlutterError('If you want to use manualTrigger:true, \n\n'
        'Then you must provide the controller property, that is a callback like:\n\n'
        ' ( controller: AnimationController) => yourController = controller \n\n');
  }
}