Android Editext监听光标位置

public class NoteContentEditText extends EditText {

    public NoteContentEditText(Context context, AttributeSet attrs) {
        super(context, attrs);
        // TODO Auto-generated constructor stub
    }

    @Override
    public void onDraw(Canvas canvas) {
        super.onDraw(canvas);
    }
    
    @Override
    protected void onSelectionChanged(int selStart, int selEnd) {
        // TODO Auto-generated method stub
        super.onSelectionChanged(selStart, selEnd);
        Logg.D("onSelectionChanged selStart "+selStart+" selEnd "+selEnd);
    }
}