Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
722 views
in Technique[技术] by (71.8m points)

android - Events of TextWatcher are being called twice

On my application I put TextWatcher on EditText. When I change the text of the EditText, the events of TextWatcher are being called twice.

I am using emulator for running the app.

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Answer

0 votes
by (71.8m points)

How does your code looks like? that is the normal behaviour of TextWatcher. Example:

myInput.addTextChangedListener(new TextWatcher() {
        boolean mToggle = false;

        public void onTextChanged(CharSequence cs, int s, int b, int c) {}

        public void afterTextChanged(Editable editable) {
            if (mToggle) { 
                Toast.makeText(getBaseContext(), "HIT KEY",Toast.LENGTH_LONG).show();
            }
            mToggle = !mToggle;
        }

        public void beforeTextChanged(CharSequence cs, int i, int j, int k) {}
    });

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...