react.js 显示隐藏效果

constructor(props) {
        super(props);
        // 设置 initial state
        this.state = {
            style: {display:"block",color:"red"},
            actionTitle:false,
        };
    }   
    showhide = () => {
    this.setState({actionTitle:!this.state.actionTitle});
    if (this.state.style.display === "block") {
      this.setState({ style: { display: "none", } })
    } else {
      this.setState({ style: { display: "block", } })
    }
  };

    render() {
        return <div>
               <List renderHeader={() => (
          <div className="pw-list-title">
            <span>上传图片</span>
            <a className="pw-list-title-extra" onClick={this.showhide}>{this.state.actionTitle ? '关闭详情' :'添加详情'}</a>
          </div>
        )}>
          <Item>
            <ImagePicker
              files={files}
              onChange={this.onFileChange}
              onImageClick={(index, fs) => console.log(index, fs)}
              selectable={files.length < 5}
            />
          </Item>
        </List>

        <div style={this.state.style}>
          {/*商品*/}
          <List renderHeader="商品">
            <InputItem>品名</InputItem>
            <InputItem>货号</InputItem>
          </List>

          {/*价格*/}
          <List renderHeader="价格">
            <SearchItem
              style={{ height: 'auto' }}
              labelInValue
              placeholder="输入颜色"
              options={colors}
              value={selectColors}
              onSelect={this.onColorSelect}
              onDeselect={this.onColorDeselect}
              tags
            >颜色</SearchItem>
            <SearchItem
              style={{ height: 'auto' }}
              labelInValue
              placeholder="输入尺码"
              options={sizes}
              value={selectedSizes}
              onSelect={this.onSizeSelect}
              onDeselect={this.onSizeDeselect}
              tags
            >尺码</SearchItem>
            <InputItem
              placeholder="0.00"
              extra="¥"
              type="money"
            >进货单价</InputItem>
          </List>
        </div>
        </div>
    }