하단 소프트웨어 메뉴키 여부 체크

출처 - http://stackoverflow.com/questions/16092431/check-for-navigation-bar

 

boolean hasMenuKey = ViewConfiguration.get(context).hasPermanentMenuKey();

boolean hasBackKey = KeyCharacterMap.deviceHasKey(KeyEvent.KEYCODE_BACK);

 

if(!hasMenuKey && !hasBackKey) {

    // Do whatever you need to do, this device has a navigation bar

}