[Android] Replace EditText text on user input.

TextWatcherExample

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

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

				@Override
				public void afterTextChanged(Editable s) {

					idAnswerEditText.removeTextChangedListener(this);

					String someString = StringUtil.doSomething(s.toString());
					idAnswerEditText.getText().clear();
					idAnswerEditText.getText().append(someString);
					idAnswerEditText.setSelection(someString.length());

					idAnswerEditText.addTextChangedListener(this);

				}

});