Nachos-TextWatcher.java

@Override
public void afterTextChanged(Editable message) {
    if(mIgnoreTextChangedEvents) {
        return;
    }

    // Avoid triggering text changed events from changes we make in this method
    mIgnoreTextChangedEvents = true;

    // Perform text changes
    // Pass event to ChipTerminatorHandler which may make programmatic changes to the text

    mIgnoreTextChangedEvents = false;
}