Dudu developers, your interface natively supports displaying speed limits next to speedometer (launcher widgets), displaying street name on the statusbar and even alerts users with a red borders when the speed limit is exceeded etc. I believe this is done using intents in conjunction with Amap Auto but debugging very hardly obscured code is not very easy. Could you share details on exactly how this is implemented? It would be possible to integrate apps like the one mentioned in the thread with this feature. Community can handle things which are not supported by you outside of the China and probably it will be hard to do even in future because no native API with communication with navigation app in non AOS[ Android exist 
