Question

Basically, I want to get chars from EditTexts and append TextViews text. For example, when I’m writing hello, TextViews text changed in a process:

1. h
2. he
3. hel
4. hell
5. hello

So how can I do that? I tried addTextChangedListener() but I have some errors. Maybe another method from you helps me.

Answer 1

Add a listener to your edittext to listen for changes:

editText.addTextChangedListener(new TextWatcher{

    public void afterTextChanged(Editable s){
        // This method is called to notify you that, somewhere within s, 
        // the text has been changed.   
    }

    public void beforeTextChanged(CharSequence s, int start, int count, int after){
        // This method is called to notify you that, within s, 
        // the count characters beginning at start are about to be replaced by 
        // new text with length after.
    } 

    public void onTextChanged(CharSequence s, int start, int before, int count){
        // This method is called to notify you that, within s, 
        // the count characters beginning at start have just replaced old 
        // text that had length before.
    }
});