Detect if a point on a map is inside a circle [closed]

In Android is there any type of object to store GPS position?

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LatLng pos = new LatLng(40.416775, -3.703790);
double lat = pos.latitude; //getLatitude
double lng = pos.longitude;//getLongitude

Suppose that this is your point pos

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 GoogleMap map;
 // ... get a map.
 // Add a circle in Sydney
 Circle circle = map.addCircle(new CircleOptions()
     .center(new LatLng(-33.87365, 151.20689))
     .radius(10000)
     .strokeColor(Color.RED)
     .fillColor(Color.BLUE));

if this were your circle circle (it's from the Sydney Australia example in the top link)

  

link ,   double, double, double, float [])

float[] disResultado = new float[2];

Location.distanceBetween( pos.latitude, pos.longitude,
                          circle.getCenter().latitude, 
                          circle.getCenter().longitude, 
                          disResultado);

if(disResultado[0] > circle.getRadius()){
    Log Fuera
} else {
    Log Dentro
}

You can use the class Location to make the calculations

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