Do you use calculator? Of Course you do in your regular life…So why not create your own basic Calculator Android App in Android Studio and use it for doing those operations.
If you don’t know how to built then you are for treat as we are going to share how the App is created in Android. This is the one of simplest App you can create to understand Android basics.
In this Calculator App tutorial we are going use of multiple Android UI components to design and step by step developing a Basic digital Calculator application in Android Studio.
Topics Used For Creating Calculator App – Before following the below steps it is recommended you check out EditText, TextView, Button & Linear Layout topics. Also go through JAVA OOPS concept once.
How To Create Calculator App In Android Studio:
Below you can download code, see final output and step by step explanation of Calc App in Android Studio.
1.Step : Firstly get the android studio downloaded in your system, then open it.
Step 2: Create a new project and name it Digital Calculator.
2.Step : Open res -> layout -> activity_main.xml (or) main.xml. Here we are going to create the application interface like add layouts, Button , TextView and EditText.
4.Step : Open src -> package -> MainActivity.java. The interface part of the application is over, let’s focus on adding functionality to the application. This calculator app basically perform five operations i.e addition, subtraction, multiplication, division and reset. So for that we need to define these operation over button click. For that we use setOnClickListener() function.
If person doesn’t enter the value and directly click on the any button then a Toast message will appear on the screen telling user to enter the required numbers.
Download Source Code
YouTube Video
OUTPUT:
Now run the App and you will see the basic calculator App. Enter any number and do the operations.