Detecting location in air

问题

In my app location should be detected by my mobile when i am in air. Is it possible to detect location using google or Apple map? If anyone of you faced this scenario please give me some solution.

回答1:

You can try reading Google Maps Elevation API documentation. The example JSON returns this:

    {
   "results" : [
      {
         "elevation" : 1608.637939453125,
         "location" : {
            "lat" : 39.73915360,
            "lng" : -104.98470340
         },
         "resolution" : 4.771975994110107
      }
   ],
   "status" : "OK"
}

So, you have to look for the elevation attribute. Then, you ask if elevation is higher than X (Where X is the needed altitude to consider the user is in air), and you're done.

来源：https://stackoverflow.com/questions/39102169/detecting-location-in-air