Android : How to remove text formatting when pasting from clipboard on Android

Right now I am working on an Android application that requires allowing the user to cut copy and paste onto an edit text fields. But when I copy a formatted string from other places (i.e. a string that is underlined) and paste it on to the edit text field, it shows it as a formatted version. How do I remove this?

I have tried to add a textwatcher by adding addTextChangedListener, and in the after text change I just do edittext.setText(s.toString()+"") but this creates an infinite loop. :(

Please help! Thanks in advance.