我正在尝试在我的反应计划中使用反应DnD。在我的渲染方法中,我定义了一个名为Populate的变量,如下面的show,它返回一个像这样的卡片列表
case
我的渲染方法返回如下
render() {
var isDragging = this.props.isDragging;
var connectDragSource = this.props.connectDragSource;
var Populate = this.props.mediaFiles.map((value) => {
return(
<div>
<MuiThemeProvider>
<Card style= {{marginBottom: 2, opacity: isDragging ? 0 : 1}} id={value.id} key={value.id}
onMouseOver={this.onMouseOver}
onMouseOut={this.onMouseOut}
//onTouchTap={() => {this.handleClick(value.id)}}
zDepth={this.state.shadow}>
<CardHeader
title={value.Episode_Name}
//subtitle={value.description}
actAsExpander={false}
showExpandableButton={false}
/>
</Card>
</MuiThemeProvider>
</div>
)
});
问题是当我尝试使用拖动时,然后选择整个卡片列表进行拖动。我希望所有卡都具有单独的拖动功能。
答案 0 :(得分:0)
如果您希望每张卡具有拖动功能,则必须将每张卡包裹在DragSource中,而不是整个列表。我会将Card拆分成它自己的组件,包含在DragSource中,如下所示:
import React, { Component, PropTypes } from 'react';
import { ItemTypes } from './Constants';
import { DragSource } from 'react-dnd';
const CardSource = {
beginDrag: function (props) {
return {};
}
};
function collect(connect, monitor) {
return {
connectDragSource: connect.dragSource(),
isDragging: monitor.isDragging()
}
}
class CardDragContainer extends React.Component {
render() {
return this.props.connectDragSource(
<div>
<Card style= {{marginBottom: 2, opacity: this.props.isDragging ? 0 : 1}} id={value.id} key={value.id}
onMouseOver={this.props.onMouseOver}
onMouseOut={this.props.onMouseOut}
zDepth={this.props.shadow}>
<CardHeader
title={props.title}
actAsExpander={false}
showExpandableButton={false}
/>
</Card>
</div>
)
}
}
export default DragSource(ItemTypes.<Your Item Type>, CardSource, collect)(CardDragContainer);
然后你将使用这个DragContainer渲染更高级别的组件,如下所示:
render() {
var Populate = this.props.mediaFiles.map((value) => {
return(
<div>
<MuiThemeProvider>
<CardDragContainer
value={value}
onMouseOver={this.onMouseOver}
onMouseOut={this.onMouseOut}
shadow={this.state.shadow}
/>
</MuiThemeProvider>
</div>
)
});
return (
<div>
<MuiThemeProvider>
<div className="mediaFilesComponent2">
{Populate}
</div>
</MuiThemeProvider>
</div>
);
}
这应该会给你一张卡片列表,每张卡片都可单独拖动。