Answers for "flutter widget animation"

3

flutter inhereted widget

class MyInherited extends InheritedWidget {
  const MyInherited({
    Key? key,
    required Widget child,
  }) : super(key: key, child: child);


  // Here be dragons: null check (!) used, but if there's no
  // MyInhereted over where you used it this will throw.
  static MyInherited of(BuildContext context) {
    return context.dependOnInheritedWidgetOfExactType<MyInherited>()!;
  }

  //if you have properties, it should look something like:
  // bool updateShouldNotify(MyInherited old) => old.prop !== new.prop;
  
  //if you don't: 
  @override
  bool updateShouldNotify(MyInherited old) => false;
}
Posted by: Guest on December-03-2020
9

Animation Flutter

class _WelcomeScreenState extends State<WelcomeScreen>
  with SingleTickerProviderStateMixin {
  AnimationController controller;
  Animation animation;

  @override
  void initState() {
  super.initState();
  controller = AnimationController(
  duration: Duration(seconds: 1),
  vsync: this,
  );

  animation = ColorTween(begin: Colors.blueGrey, end: Colors.white)
      .animate(controller);

  controller.forward();

  controller.addListener(() {
  setState(() {});
  print(animation.value);
  });
  }
Posted by: Guest on August-25-2020
0

flutter show widget with animation

//Check this out  
https://www.smashingmagazine.com/2019/10/animation-apps-flutter/
Posted by: Guest on January-05-2021

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