Pin/OTP entry field library for Android
Usage example:
<com.hm60.pinentryview.PinEntryView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:line_color="#ff0000"
app:number_count="5"
app:has_animation="true"
app:digit_size="22sp"
app:filled_line_color="#d2a12a"
app:text_color="#1f1f1f"/>