A basic mock location app like this labels its output locations as fake to the operating system. https://developer.android.com/reference/android/location/Loc...() will return true. Apps can choose to ignore the fake locations and use a last known location instead.
So maybe it's just displaying the last known location, rather than somehow getting your current location?
Thank you! Having a designer replace our stick figure and clip art satellite reflection and LOS/NLOS images definitely helped. Some of the images were originally created for the company all-hands meeting, so it wasn't all from scratch for the blog post.
Yes, Chicago is one of the toughest cities for GPS in the US.
Here's a peek into average building heights in downtown Chicago. Anywhere red, yellow, or orange we expect to have poor sky visibility. GLONASS being more popular has made Chicago slightly less challenging, before you could have trouble even seeing enough satellites to get a fix.
Yeah, exactly. DOP can provide an artificially rosy picture of the satellite geometry and visibility when you have clean reflections that looks like LOS satellites.
So maybe it's just displaying the last known location, rather than somehow getting your current location?