[안드로이드] 키보드 감추기~

http://stackoverflow.com/questions/1109022/how-to-close-hide-the-android-soft-keyboard

   tabHost.setOnTabChangedListener(new OnTabChangeListener()
        {
        public void onTabChanged(String tabId)
            {
            InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
            imm.hideSoftInputFromWindow(tabHost.getApplicationWindowToken(), 0);
            }
        }