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flutter animation slide up

Elmogawa answered on July 10, 2020 Popularity 10/10 Helpfulness 4/10

answer flutter animation slide up

flutter animation slide up

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import 'package:flutter/material.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Home(),
    );
  }
}

class Home extends StatefulWidget {
  @override
  State<StatefulWidget> createState() => HomeState();
}

class HomeState extends State<Home> with SingleTickerProviderStateMixin {
  AnimationController controller;
  Animation<Offset> offset;

  @override
  void initState() {
    super.initState();

    controller =
        AnimationController(vsync: this, duration: Duration(seconds: 1));

    offset = Tween<Offset>(begin: Offset.zero, end: Offset(0.0, 1.0))
        .animate(controller);
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Stack(
        children: <Widget>[
          Center(
            child: RaisedButton(
              child: Text('Show / Hide'),
              onPressed: () {
                switch (controller.status) {
                  case AnimationStatus.completed:
                    controller.reverse();
                    break;
                  case AnimationStatus.dismissed:
                    controller.forward();
                    break;
                  default:
                }
              },
            ),
          ),
          Align(
            alignment: Alignment.bottomCenter,
            child: SlideTransition(
              position: offset,
              child: Padding(
                padding: EdgeInsets.all(50.0),
                child: CircularProgressIndicator(),
              ),
            ),
          )
        ],
      ),
    );
  }
}

Popularity 10/10 Helpfulness 4/10 Language whatever

Source: stackoverflow.com

Tags: flutter-animation slide whatever

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Contributed on Jul 10 2020

Elmogawa

0 Answers Avg Quality 2/10

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slide in animation flutter

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import 'package:flutter/material.dart';

class SlideInAnimation extends StatefulWidget {
  final Widget child;
  final Duration duration;

  SlideInAnimation({required this.child, this.duration = const Duration(milliseconds: 500)});

  @override
  _SlideInAnimationState createState() => _SlideInAnimationState();
}

class _SlideInAnimationState extends State<SlideInAnimation> with SingleTickerProviderStateMixin {
  late AnimationController _animationController;
  late Animation<Offset> _animation;

  @override
  void initState() {
    super.initState();
    
    _animationController = AnimationController(vsync: this, duration: widget.duration);
    _animation = Tween<Offset>(begin: Offset(1.0, 0.0), end: Offset.zero)
        .animate(CurvedAnimation(parent: _animationController, curve: Curves.easeInOut));

    _animationController.forward();
  }

  @override
  void dispose() {
    _animationController.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return SlideTransition(
      position: _animation,
      child: widget.child,
    );
  }
}

Popularity 8/10 Helpfulness 2/10 Language dart

Source: Grepper

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Contributed on Sep 12 2023

YOU.com

0 Answers Avg Quality 2/10

flutter animation slide up

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