android - Track another device without Internet connection -


i'm working on personal app , want know if it's possible track device without internet connection. example, track friend's device. idea have 2 apps, 1 on device , other on friend's device. know how internet connection (the phone want track sends it's location server , phone tracking location by, example, rest service , display on map). there way without server side? don't want depend on internet. thanks.

get sms packages there many sites provides sms packages library integration can use send message other device track it. , when sending messages 1 device other device put unique code can identify message other device when received.


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