Question

I have a layout where I have some edittexts and one button. This button is setEnabled(false). How I can change his status when user write some text in edittext? I want to when user put some text to edit text button setEnabled on true?

Answer 1

You need to use TextWatcher:

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

                // TODO Auto-generated method stub
            }

            @Override
            public void beforeTextChanged(CharSequence s, int start, int count, int after) {

                // TODO Auto-generated method stub
            }

            @Override
            public void afterTextChanged(Editable s) {

                // TODO Auto-generated method stub
            }
        });