does this device have a system navigation bar ? concode_field_sep int mNavigationBarHeight concode_elem_sep float mSmallestWidthDp concode_elem_sep int mNavigationBarWidth concode_elem_sep boolean mInPortrait concode_elem_sep boolean mTranslucentNavBar concode_elem_sep String NAV_BAR_HEIGHT_RES_NAME concode_elem_sep String sNavBarOverride concode_elem_sep String SHOW_NAV_BAR_RES_NAME concode_elem_sep int mActionBarHeight concode_elem_sep boolean mTranslucentStatusBar concode_elem_sep String STATUS_BAR_HEIGHT_RES_NAME concode_elem_sep int mStatusBarHeight concode_elem_sep String NAV_BAR_WIDTH_RES_NAME concode_elem_sep String NAV_BAR_HEIGHT_LANDSCAPE_RES_NAME concode_elem_sep boolean mHasNavigationBar concode_field_sep int getNavigationBarWidth concode_elem_sep int getNavigationBarWidth concode_elem_sep int getActionBarHeight concode_elem_sep int getActionBarHeight concode_elem_sep int getStatusBarHeight concode_elem_sep int getInternalDimensionSize concode_elem_sep boolean hasNavBar concode_elem_sep boolean isNavigationAtBottom concode_elem_sep int getPixelInsetTop concode_elem_sep int getPixelInsetBottom concode_elem_sep float getSmallestWidthDp concode_elem_sep int getNavigationBarHeight concode_elem_sep int getNavigationBarHeight concode_elem_sep int getPixelInsetRight
boolean function ( ) { return mHasNavigationBar ; }