Question

我的物品很多块。当用户将鼠标悬停在项目信息上时，我想显示其信息（项目附近的方块）。这是一个例子： First example Second example

Answer 1

您可以通过反应来实现。

class nameOfClass extends React.Component{
  constructor(props){
    super(props)
    this.state = {
     box1Hover:false,
     box2Hover:false,
     box3Hover:false,
     box4Hover:false,
    }
    this.trueDisplay = this.trueDisplay.bind(this)
    this.falseDisplay = this.falseDisplay.bind(this)
  }
  trueDisplay(e){

   this.setState({[e.target.name]:true})
  }
  falseDisplay(e){

   this.setState({[e.target.name]:false})
  }
  render(){
   return(
      <div>
       <div name="box1Hover" onMouseEnter={this.trueHover} onMouseLeave={this.falseHover}>
         ....
          // your on hover content in bellow line 
         {this.state.box1Hover?<h5>Mouse hovering over me</h5>:""}
        ....
       <div>
       <div name="box2Hover" onMouseEnter={this.trueHover} onMouseLeave={this.falseHover}>
         ....
          // your on hover content in bellow line 
         {this.state.box2Hover?<h5>Mouse hovering over me</h5>:""}
        ....
       <div>
       <div name="box3Hover" onMouseEnter={this.trueHover} onMouseLeave={this.falseHover}>
         ....
          // your on hover content in bellow line 
         {this.state.box3Hover?<h5>Mouse hovering over me</h5>:""}
        ....
       <div>
      </div>
   )
  }
}

如果您知道jquery，则可以使用工具提示 https://www.w3schools.com/bootstrap/bootstrap_tooltip.asp

使用悬浮信息来反应显示块

1 个答案: