ReactCSSTransitionGroup只适用于新组件中的动画？

Question

我让ReactCSSTransitionGroup正常工作(我认为),新安装的组件在其所有荣耀中都会消失.

问题是被替换的组件突然消失了,这对我来说是一个问题,因为最终我希望我的组件进出视口...

我似乎没有看到任何方式告诉离开组件如何优雅地消失.

我是否遗漏了某些内容或者ReactCSSTransitionGroup是否只能为传入的组件设置动画？

UPDATE

代码如下:

import React from "react";
import ReactDOM from "react-dom";
import { Router, Route, IndexRoute, hashHistory, Link } from "react-router";
import ReactCSSTransitionGroup from "react-addons-css-transition-group";


class PageOne extends React.Component {
  render() {
    return (
      <ReactCSSTransitionGroup transitionName="example" transitionAppear={true} transitionAppearTimeout={500} transitionEnterTimeout={500} transitionLeaveTimeout={500}>
        <div>
          HI FROM PAGE ONE<br />
          <br />
          <Link to="two">Take me to Page Two</Link>
        </div>
      </ReactCSSTransitionGroup>
    );
  }
}
class PageTwo extends React.Component {
  render() {
    return (
      <ReactCSSTransitionGroup transitionName="example" transitionAppear={true} transitionAppearTimeout={500} transitionEnterTimeout={500} transitionLeaveTimeout={500}>
        <div>
          HELLO FROM PAGE TWO<br />
          <br />
          <Link to="/">Go back to Page One</Link>
        </div>
      </ReactCSSTransitionGroup>
    );
  }
}


const app = document.getElementById('app');
ReactDOM.render(
  <Router history={hashHistory}>
    <Route path="/" component={PageOne}></Route>
    <Route path="two" component={PageTwo}></Route>
  </Router>,
app);

而CSS:

.example-enter {
  opacity: 0.01;
}
.example-enter.example-enter-active {
  opacity: 1;
  transition: opacity 500ms ease-in;
}
.example-leave {
  opacity: 1;
}
.example-leave.example-leave-active {
  opacity: 0.01;
  transition: opacity 300ms ease-in;
}

Answer 1

好吧，看来他们已经解决了，只是直到现在我才发现。

React-Router git 存储库有一个示例列表，其中有一个“动画”示例。该演示展示了如何通过克隆元素并分配键来利用 ReactCSSTransitionGroup 为输入/输出“页面”设置动画。

https://reacttraining.com/react-router/web/example/animated-transitions