MUI Popover无法正确锚定(AnchorEl,React,材料表,MUI)

时间:2020-04-27 19:36:56

标签: reactjs material-ui popover material-table

我浏览了许多有关弹出式锚点的问题,但是在使用材料表库https://github.com/mbrn/material-table中的MaterialTable元素时,我还没有看到任何问题。

在调试时,看起来好像anchorEl正确地保存了按钮引用,但是似乎第二次重新呈现并丢失了引用。据我所知,这是从重新安装的按钮开始的。因此,默认情况下,最终渲染会将弹出框放置在屏幕的左上角。我想知道是否有人找到防止这种重新安装或其他解决方法的方法。

export class UsersList extends Component {
constructor(props) {
super(props);
this.state = {
  anchorEl: null,
  anchorReference: "anchorEl"
};
}



render() {
const { classes } = this.props;
var { anchorEl } = this.state;
const open = Boolean(anchorEl);
return (
  <MaterialTable
    isLoading={this.state.isLoading}
    columns={[
      { title: "Username", field: "username" },
      ...more columns
    ]}
    data={this.state.users}
    onRowClick={(evt, selectedRow) => this.setState({ selectedRow })}


    //where I update my anchorEl on a click on the "edit" icon
    actions={[
      {
        icon: "edit",
        tooltip: "Edit",
        onClick: (event, rowData) => {
            this.setState({ anchorEl: event.currentTarget });
          }
        },
      },
    ]}

    components={{
      Body: props => (
        <React.Fragment>
          <MTableBody {...props} />
          <Popover
                //a breakpoint here is hit twice. First time with valid ref, second time without ref
                getContentAnchorEl={null}
                id="myId"
                open={open}
                onClose={this.handlePopoverClose.bind(this)}
                anchorEl={anchorEl}
                getContentAnchorEl={null}
                anchorOrigin={{ vertical: "bottom", horizontal: "center" }}
                transformOrigin={{ vertical: "top", horizontal: "center" }}
                open={open}
              >
                <Typography>The content of the Popover.</Typography>
              </Popover>

EDIT **代码和框的运行示例:如果单击“编辑列”行项目,则会在屏幕的左上角而不是行项旁边显示一个弹出窗口:https://codesandbox.io/s/loving-tdd-8r910?file=/src/App.js

1 个答案:

答案 0 :(得分:0)

将 popover 移动到单独的组件,以便 anchorEl 与 Popover 位于同一组件中。菜单示例:

function MenuCell() {
  const [anchorEl, setAnchorEl] = useState(null);

  return (
    <div>
      <IconButton
        aria-label="more"
        aria-haspopup="true"
        onClick={(event) => setAnchorEl(event.currentTarget)}
      >
        <MoreVertIcon />
      </IconButton>
      <Menu
        anchorEl={anchorEl}
        keepMounted
        open={Boolean(anchorEl)}
        onClose={() => setAnchorEl(null)}
      >
        <MenuItem selected={false} onClick={() => setAnchorEl(null)}>
          Item 1
        </MenuItem>
        <MenuItem selected={false} onClick={() => setAnchorEl(null)}>
          Item 2
        </MenuItem>
        <MenuItem selected={false} onClick={() => setAnchorEl(null)}>
          Item 3
        </MenuItem>
      </Menu>
    </div>
  )
}

并在列单元格定义中使用:

function CustomTable() {
  
  const menuColumn = {
    id: 'menus',
    Header: '',
    Cell: ({ row }) => <MenuCell row={row} />,
  };

  // ...
}