#SelectorQuery BTS

Gets a reference to the specified node in order to call its methods or get its properties.

Depending on the method of creation, each SelectorQuery object will be assigned a root node. The scope of any node search will be limited to the leaf nodes of that node.

#Instance Methods

SelectorQuery.exec()

Execute all submitted UI node operation tasks.

SelectorQuery.select()

Select the first node that matches the specified CSS selector under the root node specified by SelectorQuery.

SelectorQuery.selectAll()

Select all nodes that match the specified CSS selector under the root node specified by SelectorQuery.

SelectorQuery.selectRoot()

Select the root node specified by SelectorQuery.

SelectorQuery.selectUniqueID()

Select nodes by specifying uid.

#Example

Get the position and size of the specified text node:

class Page extends Component {
  componentDidMount() {
    lynx
      .createSelectorQuery() // create SelectorQuery
      .select('#my-id') // Specify the selector of the target node
      .invoke({
        // Specify the operation for the target node
        method: 'boundingClientRect',
        success: function (res) {
          console.log(res);
        },
        fail: function (res) {
          console.log(res.code, res.data);
        },
      })
      .exec(); // Execute the query
  }

  render() {
    return (
      <view>
        <text id="my-id">...</text>
      </view>
    );
  }
}

#Compatibility