public boolean post(Runnable action) {

       Handler handler;

        if (mAttachInfo != null) {

           handler = mAttachInfo.mHandler;

      } else {

            // Assume that post will succeed later

           ViewRoot.getRunQueue().post(action);

           return true;

        }

        return handler.post(action);

    }

    public final void runOnUiThread(Runnable action) {

        if (Thread.currentThread() != mUiThread) {

            mHandler.post(action);

        } else {

            action.run();

        }

    }