Connect with MQTT broker by applying the username and password

Setter for MQTT callbacks. @param callback MQTTCallBack to receive messages and delivery complete statuses.

Take the emissions from the Rx Relay as a pair of LatLng and starts the animation of car on map by taking the 2 pair of LatLng's. @param latLngs List

Converts the LatLng string as (28.612, 77.6545) to LatLng type. @param latLngPair String representing latitude and longitude pair of form (28.612, 77

Bearing between two LatLng pair @param begin First LatLng Pair @param end Second LatLng Pair @return The bearing or the angle at which the marker sho

Initialize the MQTT helper to connect to the broker and subscribe to the topic

Used for subscribing to the topic.

Constructor use to init MQTT Helper class @param context The context of client from which its initialized.