How to get value on MenuItem selection? about react-native-material-menu HOT 3 CLOSED

import React from "react";

import { View, Text } from "react-native";
import Menu, { MenuItem } from "react-native-material-menu";

class App extends React.Component {
  _menu = null;

  state = { filter: null };

  setMenuRef = ref => {
    this._menu = ref;
  };

  sort = filter => {
    this.setState({ filter });
    this._menu.hide();
  };

  showMenu = () => {
    this._menu.show();
  };

  render() {
    const { filter } = this.state;
    return (
      <View style={{ flex: 1, alignItems: "center", justifyContent: "center" }}>
        <Menu
          ref={this.setMenuRef}
          button={
            <Text onPress={this.showMenu}>{filter || "Select filter"}</Text>
          }
        >
          <MenuFilterItem onPress={this.sort} filter="name">
            Name
          </MenuFilterItem>
          <MenuFilterItem onPress={this.sort} filter="price">
            Price
          </MenuFilterItem>
          <MenuFilterItem onPress={this.sort} filter="popularity">
            Popularity
          </MenuFilterItem>
        </Menu>
      </View>
    );
  }
}

class MenuFilterItem extends React.PureComponent {
  onPress = () => {
    this.props.onPress(this.props.filter);
  };

  render() {
    return <MenuItem onPress={this.onPress}>{this.props.children}</MenuItem>;
  }
}

export default App;