Open Source library
OTP View is a custom view that allows users to enter OTPs. It is a drop-in replacement for EditText and can be used in any layout. It is highly customizable and can be used to create OTP views with any number of digits. It also supports copy-paste functionality. It is written in Kotlin and is compatible with Java. It is available on GitHub and can be used in any project. It is also available on JitPack.