Mobile device may lose its network connection any time. This short example shows how to check if the Android device has a working connection.
Android SharedPreferences is a cool way to store user preferences to a file. All of the work is handled by the SharedPreferences class and as a bonus the class creates a file that is human readable.
This tutorials shows how to use self signed certificates in Android application. This tutorials aimed only for testing and development, since you should never allow self signed certificates in released application.
In this tutorial I'll take a brief look at the traffic data available for the developer. It introduces few of the most common methods of TrafficStats class
Short tutorial on using Android virtual keyboard to submit a form.