@Override
void updateLatLng(@NonNull Location location) {
if (latLng == null) {
// first location fix
latLng = new LatLng(location);
locationUpdateTimestamp = SystemClock.elapsedRealtime();
}
// updateLatLng timestamp
long previousUpdateTimeStamp = locationUpdateTimestamp;
locationUpdateTimestamp = SystemClock.elapsedRealtime();
// calculate animation duration
long locationUpdateDuration;
if (previousUpdateTimeStamp == 0) {
locationUpdateDuration = 0;
} else {
// TODO remove 10 * hack to multiply duration to workaround easing interpolation
// (easeCamera)
locationUpdateDuration = 10 * (locationUpdateTimestamp - previousUpdateTimeStamp);
}
// calculate interpolated location
previousLocation = latLng;
latLng = new LatLng(location);
interpolatedLocation =
new LatLng(
(latLng.getLatitude() + previousLocation.getLatitude()) / 2,
(latLng.getLongitude() + previousLocation.getLongitude()) / 2);
// build new camera
CameraPosition.Builder builder = new CameraPosition.Builder().target(interpolatedLocation);
// add direction
if (myBearingTrackingMode == MyBearingTracking.GPS) {
if (location.hasBearing()) {
builder.bearing(location.getBearing());
gpsDirection = 0;
}
} else if (myBearingTrackingMode == MyBearingTracking.COMPASS) {
if (!compassListener.isPaused()) {
builder.bearing(compassListener.getCurrentDegree());
compassDirection = 0;
}
}
updateAccuracy(location);
// animate to new camera
mapboxMap.easeCamera(
CameraUpdateFactory.newCameraPosition(builder.build()),
(int) locationUpdateDuration,
null);
}
