Masked-Edittext android library > Kotlin/Java/Android

https://github.com/pinball83/Masked-Edittext 

compile 'com.github.pinball83:masked-edittext:1.0.4'

<com.github.pinball83.maskededittext.MaskedEditText
                android:id="@+id/masked_edit_text"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:inputType="number"
                app:mask="8 (***) *** **-**"
                app:notMaskedSymbol="*"
                app:maskIcon="@drawable/abc_ic_clear_mtrl_alpha"
                app:maskIconColor="@color/colorPrimary"
                />