<How to add suffix text into EditText after write ...

# stackoverflow

[user]

How to add suffix text into EditText after write on Keyboard on Android
In my application I want use EditText and I want after user write on keyboard add suffix text into EditText.
I write below codes, but when user write on keyboard application has freeze!

loginPage4SelectTxt.addTextChangedListener(object : TextWatcher {
override fun beforeTextChanged(p0: CharSequence?, p1: Int, p2: Int, p3: Int) {

}

override fun onTextChanged(p0: CharSequence?, p1: Int, p2: Int, p3: Int) {

}...