A fully featured Android application has a lot of functionality going on to provide a user-friendly interface to the user. For example, we can Indicate if the device is still connected to a network of if connected is it Wifi or mobile network, check GPS status on the device, battery status like a battery percentage or if connected to power source etc. In this post, I am going to list some similar handy and useful methods which are needed most of the time in an Android application.