Question

在过去的几个小时里，我一直在努力寻找一种方法来使反应组件可以拖动和调整大小。我找到了一种方法可以使用react drag and drop使其可拖动，但我找不到一种简单的方法来使其可调整大小：/ 有没有人有关于如何使组件可拖动和可调整大小的经验？

任何帮助或指示都表示赞赏！

Answer 1

使用react-grid-layout解决此问题。特别是对于用户可以缩放时间块并沿水平时间线拖放它们的调度小部件。

react-grid-layout提供了一个带有可拖动和可调整大小的小部件的网格，以及响应式布局，可选的自动打包以及其他功能。

var ReactGridLayout = require('react-grid-layout');

// React component render function:
render: function() {
  return (
    <ReactGridLayout className="layout" cols={12} rowHeight={30}>
      <div key={1} _grid={{x: 0, y: 0, w: 1, h: 2}}>1</div>
      <div key={2} _grid={{x: 1, y: 0, w: 1, h: 2}}>2</div>
      <div key={3} _grid={{x: 2, y: 0, w: 1, h: 2}}>3</div>
    </ReactGridLayout>
  )
}

子节点是可拖动和可调整大小的。每个子节点中定义的布局＆＃34; _grid＆＃34;也可以直接在父母＆＃34;布局＆＃34;丙

// React component render function:
render: function() {
  // layout is an array of objects, see the demo
  var layout = getOrGenerateLayout();
  return (
    <ReactGridLayout className="layout" layout={layout} cols={12} rowHeight={30}>
      <div key={1}>1</div>
      <div key={2}>2</div>
      <div key={3}>3</div>
    </ReactGridLayout>
  )
}

回调函数可以作为props传递给组件。连接到这些应该允许您定义任何自定义行为：

// Calls when drag starts.
onDragStart: React.PropTypes.func,
// Calls on each drag movement.
onDrag: React.PropTypes.func,
// Calls when drag is complete.
onDragStop: React.PropTypes.func,
// Calls when resize starts.
onResizeStart: React.PropTypes.func,
// Calls when resize movement happens.
onResize: React.PropTypes.func,
// Calls when resize is complete.
onResizeStop: React.PropTypes.func

来自文档的代码示例： https://github.com/STRML/react-grid-layout

在这里演示： https://strml.github.io/react-grid-layout/examples/0-showcase.html

Answer 2

https://github.com/STRML/react-resizable

'use strict';
var React = require('react/addons');
typeof window !== "undefined" && (window.React = React); // for devtools
typeof window !== "undefined" && (window.Perf = React.addons.Perf); // for devtools
var _ = require('lodash');
var ResizableBox = require('../lib/ResizableBox.jsx');
var Resizable = require('../lib/Resizable.jsx');
require('style!css!../css/styles.css');

var TestLayout = module.exports = React.createClass({
  displayName: 'TestLayout',

  getInitialState() {
    return {width: 200, height: 200};
  },

  onClick() {
    this.setState({width: 200, height: 200})
  },

  onResize(event, {element, size}) {
    this.setState({width: size.width, height: size.height});
  },

  render() {
    return (
      <div>
        <button onClick={this.onClick} style={{'marginBottom': '10px'}}>Reset first element's width/height</button>
        <Resizable className="box" height={this.state.height} width={this.state.width} onResize={this.onResize}>
          <div className="box" style={{width: this.state.width + 'px', height: this.state.height + 'px'}}>
            <span className="text">{"Raw use of <Resizable> element. 200x200, no constraints."}</span>
          </div>
        </Resizable>
        <ResizableBox className="box" width={200} height={200}>
          <span className="text">{"<ResizableBox>, same as above."}</span>
        </ResizableBox>
        <ResizableBox className="box" width={200} height={200} draggableOpts={{grid: [25, 25]}}>
          <span className="text">Resizable box that snaps to even intervals of 25px.</span>
        </ResizableBox>
        <ResizableBox className="box" width={200} height={200} minConstraints={[150, 150]} maxConstraints={[500, 300]}>
          <span className="text">Resizable box, starting at 200x200. Min size is 150x150, max is 500x300.</span>
        </ResizableBox>
        <ResizableBox className="box box3" width={200} height={200} minConstraints={[150, 150]} maxConstraints={[500, 300]}>
          <span className="text">Resizable box with a handle that only appears on hover.</span>
        </ResizableBox>
        <ResizableBox className="box" width={200} height={200} lockAspectRatio={true}>
          <span className="text">Resizable square with a locked aspect ratio.</span>
        </ResizableBox>
        <ResizableBox className="box" width={200} height={120} lockAspectRatio={true}>
          <span className="text">Resizable rectangle with a locked aspect ratio.</span>
        </ResizableBox>
      </div>
    );
  }
});

Answer 3

我一直在使用react-rnd，我真的很满意：https://github.com/bokuweb/react-rnd

reactjs可拖动和可调整组件

3 个答案: