java - Increasing the accuracy of proximity alerts in Android -


my application keeps track of user's location, , sets proximity alerts nearby stores returned api automatic-chickin type functionality. i'm hitting head against wall trying figure out how improve accuracy when proximity alert triggered network location. need way confirm user @ location either checking again within few minutes, or confirming current position via gps.

part of issue context handling proximity alert intent service, works asynchronously causes issues when alerts fire in rapid succession. there's way (e.g. google+ checkin notifications), i'm @ loss next.

my experience network location less accurate gps location, although neither 100% reliable. gps perfect, @ other times it's wrong maybe 50 metres or more. handle this, think best way combine 2 location sources using simple kalman filter, neither network or gps trigger promimity alerts directly, instead it's result of kalman filtering used. see answer smooth gps data full details of kalman filter might work.


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