This is a complete tutorial, discussing how to build a simple calculator app for Android. Check it out, and implement some of the recommended improvements.

In this post, you will learn how to use Android Studio to view and open the files that make up your projects. In doing so, you’ll gain a better understanding of how an Android app is structured ...

Now, in Part 2, you’ll code your first app. The animated mobile app consists of a single activity, which presents Google’s Android robot character and a button for animating the character.

Smartphones and PCs are equipped with calculator apps, which allow you to instantly find the answer for simple calculations. However, it is very difficult to develop a calculator that can display ...