With CalculatorInputView you can add functionality to a calculation EditText Android
'com.github.gperez88:calculatorInputView:0.0.2'
<dependency>
<groupId>com.github.gperez88</groupId>
<artifactId>calculatorInputView</artifactId>
<version>0.0.2</version>
</dependency>
<dependency org="com.github.gperez88" name="calculatorInputView" rev="0.0.2"/>
"com.github.gperez88", "calculatorInputView", "0.0.2"