public UnikeryDrawable(ObservedTextView textView, Conaco<ImageBitmap> conaco) {
   mTextView = textView;
   mTextView.setOnWindowAttachListener(this);
   mConaco = conaco;
 }
 @Override
 public void invalidateSelf() {
   CharSequence cs = mTextView.getText();
   mTextView.setText(cs);
 }