当蓝牙关闭再打开时，测距IBeacons停止

Question

我正在尝试使用Ionic Native IBeacons插件在Ionic 3.6项目上实现屏幕上的IBeacons。

这是我的代码：

scanIBeacons(){
    this.ibeacon.requestAlwaysAuthorization();
    this.ibeacon.isBluetoothEnabled().then(isEnabled => {
      console.log("BLUETOOTH ENABLED " + isEnabled)
      this.isBluetooth = isEnabled;
      if(isEnabled){
        if(!this.didRangeBeaconsInRegion) {
          let delegate = this.ibeacon.Delegate();
          this.didRangeBeaconsInRegion = delegate.didRangeBeaconsInRegion()
            .subscribe(
              data => {
                console.log('## didRangeBeaconsInRegion: ' + JSON.stringify(data))
                this.updateUI(data)

              },
              error => console.error()
            );
        }
         //range all my individual beacons
        for(let myBeacon of this.mybeacons){
          this.rangeBeacon(myBeacon.major, myBeacon.minor);
        }
      }
      else{
        if(this.didRangeBeaconsInRegion) 
        this.didRangeBeaconsInRegion.unsubscribe();
        this.didRangeBeaconsInRegion = null;
      //stop range all my individual beacons
        for(let myBeacon of this.mybeacons){
          this.stopRangeBeacon(myBeacon.major, myBeacon.minor);
        }

      }
    })
  }

rangeBeacon(major:number, minor:number){

    let beaconRegion = this.ibeacon.BeaconRegion(major + "-" + minor,'UUID',major, minor);

    this.ibeacon.startRangingBeaconsInRegion(beaconRegion)
      .then(
        () => console.log('%%%%%%Native layer recieved the request to ranging%%%%%%'),
        error => console.error('%%%%%%Native layer failed to begin ranging%%%%%%: ', error)
      );
  }

  stopRangeBeacon(major:number, minor:number){

    let beaconRegion = this.ibeacon.BeaconRegion(major + "-" + minor,'UUID',major, minor);

    this.ibeacon.stopRangingBeaconsInRegion(beaconRegion)
      .then(
        () => console.log('%%%%%%Native layer recieved the request to ranging%%%%%%'),
        error => console.error('%%%%%%Native layer failed to begin ranging%%%%%%: ', error)
      );
  }

如果我启动了蓝牙激活的应用程序，它开始正确测量IBeacons，但是当我按下de bluetooth toggle关闭然后再次打开它停止测距时，它仍然接收测距事件但是信标数组是空的。要解决的唯一方法是完全关闭应用程序并再次打开它。

我已经尝试删除范围监听器，停止所有范围添加并重新启动它而不起作用。

如果我在关闭蓝牙的情况下启动应用程序，然后在这种情况下打开正常工作。

会出错的是什么？

编辑：此问题仅发生在Android 7上