测距多重ibeacon区域

Question

Iam使用react-native-beacons-manager库本地发现ibeacon信标，但是当我添加两个const region1和const region2然后使用Beacons.startRangingBeaconsInRegion（region1）和Beacons.startRangingBeaconsInRegion（region2）时，它不会什么都归还。

我使用的代码是

componentWillMount() {
    Beacons.requestWhenInUseAuthorization();
    const region = {
      identifier: '973d0a2cf8f07443acdc71fad3df043d',
      uuid: 'B9407F30-F5F8-466E-AFF9-25556B57FE6D',
      major: 1,
      minor: 2
    };
    const region2 = {
      identifier: '39120dc19aa1a49c16b48bc4a5ea300b',
      uuid: '5627DB35-B8A3-4EDC-987C-462CCB3B034F',
      major: 2,
      minor: 1
    }
    // Range for beacons inside the region
    Beacons.startRangingBeaconsInRegion(region);
    Beacons.startRangingBeaconsInRegion(region2);
    Beacons.startUpdatingLocation();
  }

  componentDidMount() {
    // Ranging: Listen for beacon changes
    this.beaconsDidRange = DeviceEventEmitter.addListener(
      'beaconsDidRange',
      (data) => {
        this.setState({
          dataSource: this.state.dataSource.cloneWithRows(data.beacons)
        });
      }
    );
    const UniqueID = DeviceInfo.getUniqueID();


  }

  componentWillUnMount() {
    this.beaconsDidRange = null;
  }