Auto remove leading space of any text of EditText?

Question

Description

I am developing one app in which I have registration page. Inside registration page, I am doing registration by getting user\'s full nam

Answer 1

First, try to understand what he is trying to do

He is trying to prevent user typing leading spaces and not after entering text.

He doesn't want to trim username

Update your code from

if(str.length() > 0 && str.contains(" "))
                {
                    user_name.setError("Space is not allowed");
                    user_name.setText("");
                }

to

if(str.equals(" "))
                {
                    user_name.setError("Leading Space is not allowed");
                    user_name.setText("");
                }

It will prevent user typing any space before name