Android Map: How to detect ImageView overlapping on Map Marker?

Question

In my Map Activity i'm displaying few Markers indicating parking lots and i have an ImageView showing a car icon which is fixed to center of the screen on top of the the Map Fragment. I want to perform some action when the car icon overlaps parking_lot Marker while dragging the Map.

What are the possible ways of doing this?

I'm able to get the LatLong of the car while dragging but i have no idea what to do next.

You just need the lat/lon of both points, and then you can use this: http://stackoverflow.com/a/8832202/4409409 — Daniel Nugent, Nov 26 '16 at 17:20
I think finding the distance btween two points will help..thanks bro. — Zayid Mohammed, Nov 26 '16 at 17:25

Amir_P · Accepted Answer · 2020-11-03T08:12:36.023

2

you can get center of map with this

Map.getCameraPosition().target;

then you can find distance between users location and center with this method:

private static double distance(double lat1, double lon1, double lat2, double lon2) {
    double theta = lon1 - lon2;
    double dist = Math.sin(Math.toRadians(lat1)) * Math.sin(Math.toRadians(lat2)) + Math.cos(Math.toRadians(lat1)) * Math.cos(Math.toRadians(lat2)) * Math.cos(Math.toRadians(theta));
    dist = Math.acos(dist);
    dist = Math.toDegree(dist);
    dist = dist * 60 * 1.1515;
    return (dist * 1.609344);
}

if distance is lower than a specific value do what you want

edited Nov 03 '20 at 08:12

answered Nov 26 '16 at 17:37

Amir_P

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whats doing inside the rad2deg() method? – Zayid Mohammed Nov 26 '16 at 17:53
convert radians to degree. post edited @ZayidMohammed – Amir_P Nov 26 '16 at 18:26

Android Map: How to detect ImageView overlapping on Map Marker?

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