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✨ ✨✨强大的flutter动画组件来了

✨ Flutter Animation Set

pub package

简化Flutter交错动画。用动画配置的形式,通过时间线去驱动Flutter的交错动画。你可以

  1. 使用Flutter Animation Set现有的动画组件
  2. 使用Flutter Animation Set去创建新的动画组件
  3. 贡献你的Flutter Animation Set动画组件
  4. 在项目的example中观看所有的Curves动画效果

🎖 Installing

dependencies:
  flutter_animation_set: ^0.0.3
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⚡ Use Animation Set Widget

1、import

import 'package:flutter_animation_set/widget/transition_animations.dart';
import 'package:flutter_animation_set/widget/behavior_animations.dart';
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2、use

child: YYRotatingPlane(),
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3、road map

transition_animations 过渡动画


YYRotatingPlane

YYDoubleBounce

YYWave

YYWanderingCubes

YYFadingFour

YYFadingCube

YYPulse

YYThreeBounce

YYThreeLine

YYCubeGrid

YYRotatingCircle

YYPumpingHeart

YYRipple

YYRotateLine

YYCubeFadeIn

YYBlinkGrid

behavior_animations 行为动画


YYFadeButton

YYSingleLike

YYLove

YYSpringMenu

YYFoldMenu

4、thanks

⚡ Create Animation Set Widget By YourSelf

1、import

import 'package:flutter_animation_set/animation_set.dart';
import 'package:flutter_animation_set/animator.dart';
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2、use widget

通过使用AnimatorSet组装动画

  • child:执行动画的组件
  • animatorSet:动画集合
AnimatorSet(
    child: widget.child,
    animatorSet: [],
)
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3、use api

about animation widget

Widget Mean Description
W width 控制宽度的变化,如果是按比例拉升,建议用SX替代
H height 控制高度的变化,如果是按比例拉升,建议用SY替代
P padding 控制边距的变化
O opacity 控制透明度的变化
SX scaleX 以中点进行X轴的缩放
SY scaleY 以中点进行Y轴的缩放
RX rotateX 以中点进行X轴的旋转
RY rotateY 以中点进行Y轴的旋转
RZ rotateZ 以中点进行Z轴的旋转
TX transitionX 进行X轴的平移
TY transitionY 进行Y轴的平移
C color 控制背景颜色变化
B border 控制背景边框变化

about support widget

Widget Mean Description
Delay delay timeLine 延长时间线,进入等待阶段
Serial combine animation 通过组合动画,达到一起播放的效果

⚡ For Example

1、create timeLine


  1. 此图表明动画的核心组成是根据时间线(timeLine)去制作的
  2. 在执行的过程中有6次动画同时进行,且总动画时长都为900ms
  3. 通过ScaleY组件有序的进行放大和缩小的操作,让每个矩形都有波浪的效果
  4. 通过Delay组件去拖长时间线,达到动画时长统一为900ms

2、build animatorSet

通过上面的图示组装我们的动画组件,动画组件带有以下属性

  • from:动画初始值
  • to:动画结束值
  • duration:动画时间
  • delay:真正执行动画的延时
  • curve:动画插值器
animatorSet: [
  Delay(duration: before),
  SY(from: 0.8, to: 1.6, duration: 200, delay: 0, curve: Curves.linear),
  SY(from: 1.6, to: 0.8, duration: 200, delay: 0, curve: Curves.linear),
  Delay(duration: after),
],
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动画执行的对象是Container长方形

Widget makeWave(int before, int after) {
  return AnimatorSet(
    child: Container(
      color: Colors.white,
      width: 5,
      height: 15,
    ),
    animatorSet: [
      Delay(duration: before),
      SY(from: 0.8, to: 1.6, duration: 200, delay: 0, curve: Curves.linear),
      SY(from: 1.6, to: 0.8, duration: 200, delay: 0, curve: Curves.linear),
      Delay(duration: after),
    ],
  );
}
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3、convert to code

class YYWave extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Container(
      width: 40,
      height: 40,
      child: Row(
        mainAxisAlignment: MainAxisAlignment.spaceBetween,
        children: <Widget>[
          makeWave(0, 500),
          makeWave(100, 400),
          makeWave(200, 300),
          makeWave(300, 200),
          makeWave(400, 100),
          makeWave(500, 0),
        ],
      ),
    );
  }
}
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4、done

More

1、组合动画

缩放效果需要同时缩放X、Y轴,用到Serial组件

animatorSet: [
  Serial(
    duration: 2000,
    serialList: [
      SX(from: 0.0, to: 1.0, curve: Curves.easeInOut),
      SY(from: 0.0, to: 1.0, curve: Curves.easeInOut),
      O(from: 0.5, to: 0.0, delay: 1000, curve: Curves.easeInOut),
    ],
  ),
],
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done

2、延时动画

对真正做动画的时候处理delay属性

class YYThreeLine extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Container(
      width: 40,
      height: 40,
      child: Row(
        mainAxisAlignment: MainAxisAlignment.spaceBetween,
        children: <Widget>[
          makeLine(0),
          makeLine(50),
          makeLine(100),
        ],
      ),
    );
  }
}

Widget makeLine(int delay) {
  return AnimatorSet(
    child: Container(
      color: Colors.white,
      width: 10,
      height: 5,
    ),
    animatorSet: [
      TY(from: 0.0, to: 5.0, duration: 400, delay: delay, curve: Curves.fastOutSlowIn,),
      TY(from: 5.0, to: 0.0, duration: 400, curve: Curves.fastOutSlowIn,),
    ],
  );
}
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done

3、倒退动画

动画可以播放完成后,通过animationType属性设置AnimationType.reverse,让动画接着倒退播放

class YYFoldMenu extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Container(
      width: 40,
      height: 40,
      child: Column(
        mainAxisAlignment: MainAxisAlignment.spaceBetween,
        children: <Widget>[
          makeFoldMenu(0, 40),
          makeFoldMenu(100, 26.0),
          makeFoldMenu(200, 12.0),
        ],
      ),
    );
  }
}

Widget makeFoldMenu(int delay, double toY) {
  return AnimatorSet(
    animationType: AnimationType.reverse,
    child: Container(
      decoration: BoxDecoration(
        color: Colors.white,
      ),
      width: 30,
      height: 10,
    ),
    animatorSet: [
      Serial(
        duration: 2000,
        delay: delay,
        serialList: [
          TY(from: 0.0, to: toY, curve: Curves.elasticInOut),
          SX(from: 1.0, to: 0.1, curve: Curves.elasticInOut),
          SY(from: 1.0, to: 0.1, curve: Curves.elasticInOut),
        ],
      ),
    ],
  );
}
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done

Bugs/Requests

  • If your application has problems, please submit your code and effect to Issue.
  • Pull request are also welcome.

Contribution

  • Contribute your component, and we'll add it to the animation set
  • Or post your animation, if interested, we will help you to achieve

About

License

Apache License 2.0

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