How to dynamically read number of characters from EditText to TextVew and ProgressBar?

Question

Android

Just started learning Android development. I would like to know how, when entering a string in editText, the data was immediately read from it and added to the textview without any clicks.
I also wanted to know how you can also influence the progressbar by changing its progress.

Answer 1

editText.addTextChangedListener(new TextWatcher() {
            @Override
            public void beforeTextChanged(CharSequence s, int start, int count, int after) {

            }

            @Override
            public void onTextChanged(CharSequence s, int start, int before, int count) {
                textVew.setText(s);
            }

            @Override
            public void afterTextChanged(Editable s) {

            }
        });

Answer 2

Everything about real time is Rx. Specifically for the android lib RxBinding - here is a good article.
https://realm.io/news/donn-felker-reactive-android...
Of course, this is an overkill for such a task, but tasks can get more complicated, and you will already know about a good tool.