Create a method that runs when editText is changing

Question

I'm new to Android development and I want to create a method that runs every time my editText is changed.

In swift I use this function:

func fieldChanged(textfieldChange: UITextField){

}

I can't find anywhere a similar function for Java and Android Studio, are there any suggestions?

Possible duplicate of [android edittext onchange listener](https://stackoverflow.com/questions/11134144/android-edittext-onchange-listener) — Falco Winkler, Jul 21 '17 at 07:54
Why is javascript as tag? Do you ask for Java/Kotlin or are you using javascript and Ionic, Electron or similar...? — sharp, Jul 21 '17 at 08:07

score 1 · Answer 1 · answered Jul 21 '17 at 08:01

// Globally declare a variable

private TextWatcher mTextWatcher;

// Call textChanger() method in onCreate

private void textChanger() {
        mTextWatcher = 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) {
                if (s.length() == 6 && mEditText.getText().toString().trim().equals("some value to check"))
mEditTextOther.requestFocus();
                else
                    mEditText.setError("enter correct");
            }

            @Override
            public void afterTextChanged(Editable s) { }
        };
        mEditText.addTextChangedListener(mTextWatcher);
    }

AskNilesh · Answer 2 · 2017-07-21T08:00:59.950

0

try this

      editText.addTextChangedListener(new TextWatcher() {

        public void afterTextChanged(Editable s) {

                        }

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

        public void onTextChanged(CharSequence s, int start, int before, int count) {}
    });

edited Jul 21 '17 at 08:00

answered Jul 21 '17 at 07:56

AskNilesh

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Where should I add this? I'm new to Android Studio and I'm a little confussed. – Alex Karapanos Jul 21 '17 at 08:00
did your nedd for andord or xmarin – AskNilesh Jul 21 '17 at 08:00

Create a method that runs when editText is changing

2 Answers2