Android @ Kiowok

TextWatcher

There are many ways to respond to changes in a text field.

Assume that you have a reference myText to an EditText object. Then in onCreate you can setup an event handler

	myText.addTextChangedListener(new MyTextWatcher());

where you have defined a TextWatcher class named MyTextWatcher

	class MyTextWatcher implements TextWatcher {
		@Override
		public void afterTextChanged(Editable arg0) {
		}

		@Override
		public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,
				int arg3) {	
		}

		@Override
		public void onTextChanged(CharSequence arg0, int arg1, int arg2,
				int arg3) {
			Log.d("*** YOUR TAG ***", "onTextChanged");
			String s = myText.getText().toString();
			// process the changed text here...
		}
	}