geolocation - distance between mobiles system -



geolocation - distance between mobiles system -

i'm developing mobile , wanted implement feature show other mobile devices near you(changeable radius if it's possible) have same app using wifi or gps, whatever better. how do that(reference great guide/site great)? there sort of ready plugin or ^^? thanks.

1) app reads gps position of user id , send server , store recent one

2) app connect server , reads position of users, or users within aproximate distance current device position gps.

fpr aproximate distance calculate distance between 2 lat/lon coordinates. ios , android have built in functions. otherwise easy self implement.

mobile geolocation gps

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