How to convert GPS data to google map routes and display them

well to start it would be better if you post this in the Android Development Forum

but i'll just ask the mods to move this thread there for you.

just an fyi, google maps already does this. at the very bottom you will see a tab called "Saved"....just scroll down to the bottom of the screen and you will see an option called "Your Timeline"....select that and it will show you the time and place you visted and for how long you were there. i service aquariums for busniesses and private homes and use this feature on a daily basis.

so i'm not sure how much of a interest will be in your app if you make one.....unless you devise an app specifically to help out with deliveries and routes.