Implementing Text Watcher for EditText

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北海茫月
北海茫月 2020-11-27 07:20

I have an EditText. When i click on it, it becomes focusable. I will type the input text to be entered into the EditText. I want to implement a listener for EditText, so tha

4条回答
  •  無奈伤痛
    2020-11-27 07:42

    Try like this.

    EditText et = (EditText)findViewById(R.id.editText);
    Log.e("TextWatcherTest", "Set text xyz");
    et.setText("xyz");
    
    et.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) {
            Log.e("TextWatcherTest", "afterTextChanged:\t" +s.toString());
        }
    });
    

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