This intro hides the system bars.
767720
@TargetApi(VERSION_CODES.KITKAT)
    public static void hideSystemUI(Activity activity) {
        // Set the IMMERSIVE flag.
        // Set the content to appear under the system bars so that the content
        // doesn't resize when the system bars hideSelf and show.
        View decorView = activity.getWindow().getDecorView();
        decorView.setSystemUiVisibility(
                View.SYSTEM_UI_FLAG_LAYOUT_STABLE
                        | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
                        | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
                        | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION // hideSelf nav bar
                        | View.SYSTEM_UI_FLAG_FULLSCREEN // hideSelf status bar
                        | View.SYSTEM_UI_FLAG_IMMERSIVE
        );
    }
1365133
private void adaptButtonBarContainerVisibility() {
        if (buttonBarContainer != null) {
            if (TextUtils.isEmpty(positiveButtonText) && TextUtils.isEmpty(neutralButtonText) &&
                    TextUtils.isEmpty(negativeButtonText)) {
                buttonBarContainer.setVisibility(View.GONE);
            } else {
                buttonBarContainer.setVisibility(View.VISIBLE);
            }
        }
    }
998138
function( startMenu ) {
		if ( !startMenu ) {
			startMenu = this.active ? this.active.parent() : this.element;
		}

		startMenu.find( ".ui-menu" )
			.hide()
			.attr( "aria-hidden", "true" )
			.attr( "aria-expanded", "false" );
	}
858120
private function _filesystems()
    {
        $df_args = "";
        $hideFstypes = array();
        if (defined('PSI_HIDE_FS_TYPES') && is_string(PSI_HIDE_FS_TYPES)) {
            if (preg_match(ARRAY_EXP, PSI_HIDE_FS_TYPES)) {
                $hideFstypes = eval(PSI_HIDE_FS_TYPES);
            } else {
                $hideFstypes = array(PSI_HIDE_FS_TYPES);
            }
        }
        foreach ($hideFstypes as $Fstype) {
            $df_args .= "-x $Fstype ";
        }
        if ($df_args !== "") {
            $df_args = trim($df_args); //trim spaces
            $arrResult = Parser::df("-P $df_args 2>/dev/null");
        } else {
            $arrResult = Parser::df("-P 2>/dev/null");
        }
        foreach ($arrResult as $dev) {
            $this->sys->setDiskDevices($dev);
        }
    }
399820
def hide(options = {})
      attributes = {:style => "display:none"}

      if options.has_key?(:unless)
        return options[:unless] ? {} : attributes
      end

      if options.has_key?(:if)
        return options[:if] ? attributes : {}
      end

      attributes
    end
563917
public void hide() {
        div.removeFromParent();
        if (scrollDisabled) {
            RootPanel.get().getElement().getStyle().setOverflow(Style.Overflow.AUTO);
        }
        if (type == LoaderType.CIRCULAR) {
            preLoader.removeFromParent();
        } else if (type == LoaderType.PROGRESS) {
            progress.removeFromParent();
        }
    }
526900
@SuppressWarnings({"WeakerAccess", "unused"}) // For library users
    public void disableFullScreen() {
        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.JELLY_BEAN) {
            setImeOptions(getImeOptions() | EditorInfo.IME_FLAG_NO_EXTRACT_UI);
        }
    }
1261682
private void doClose()
	{
		// set visible, if system tray active and frame is iconified
		if (useSystemTray && (getExtendedState()&ICONIFIED)!=0) setVisible(true);
		
		doStopPlaying();
		getSeekBarPanel().pauseThread();
		getVULMeterPanel().pauseThread();
		getVURMeterPanel().pauseThread();
		getSALMeterPanel().pauseThread();
		getSARMeterPanel().pauseThread();
		getLEDScrollPanel().pauseThread();
		writePropertyFile();
		if (audioProcessor!=null) audioProcessor.removeListener(this);
		
		MultimediaContainerManager.removeMultimediaContainerEventListener(this);

		useSystemTray = false; setSystemTray();

		for (Window win : windows)
		{
			win.setVisible(false);
			win.dispose();
		}
		setVisible(false);
		dispose();
		
		System.exit(0); // this should not be needed! 
	}
82086
def clear(self):
        
        for renderer in self.renderers:
            renderer.RemoveAllViewProps()
        self._scalar_bar_slots = set(range(MAX_N_COLOR_BARS))
        self._scalar_bar_slot_lookup = {}
        self._scalar_bar_ranges = {}
        self._scalar_bar_mappers = {}
        self._scalar_bar_actors = {}
        self._scalar_bar_widgets = {}
529891
@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
    public static void invasionStatusBar(Window window) {
        View decorView = window.getDecorView();
        decorView.setSystemUiVisibility(decorView.getSystemUiVisibility()
                | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
                | View.SYSTEM_UI_FLAG_LAYOUT_STABLE);
        window.setStatusBarColor(Color.TRANSPARENT);
    }
204533
function () {
            var cmenu = this;
            if (cmenu.shown) {
                if (cmenu.iframe) {
                    $(cmenu.iframe).hide();
                }
                if (cmenu.menu) {
                    cmenu.menu[cmenu.hideTransition](cmenu.hideSpeed, ((cmenu.hideCallback) ? function () {
                        cmenu.hideCallback.call(cmenu);
                    } : null));
                }
                if (cmenu.shadow) {
                    cmenu.shadowObj[cmenu.hideTransition](cmenu.hideSpeed);
                }
            }
            cmenu.shown = false;
        }
85150
function enterFullScreen() {
    if (Windows.UI.ViewManagement.ApplicationViewBoundsMode) { // else crash on 8.1
        var view = Windows.UI.ViewManagement.ApplicationView.getForCurrentView();
        view.setDesiredBoundsMode(Windows.UI.ViewManagement.ApplicationViewBoundsMode.useCoreWindow);
        view.suppressSystemOverlays = true;
    }
}
716806
private void obtainShowButtonBar() {
        boolean showButtonBar = ThemeUtil.getBoolean(this, R.attr.showButtonBar, false);
        showButtonBar(showButtonBar);
    }
846936
public final void hideNavigation(final boolean navigationHidden) {
        toolbar.setVisibility(navigationHidden ? View.INVISIBLE : View.VISIBLE);

        if (!navigationHidden) {
            setNavigationWidth(navigationWidth);
        }
    }
1018400
function() {
    dom.hide(this.$startHelp);
    dom.hide(this.$results);
    dom.hide(this.$measureTasks);
    dom.hide(this.$measuringPrompt);
    dom.show(this.$startPrompt);
  }
1167326
function () {
            var documentContainer = document.querySelector('.document-container');
            if (documentContainer.classList.contains('backdrop-hidden')) {
                documentContainer.classList.remove('backdrop-hidden');
                documentContainer.style.display = 'none';
            }
            if (this.classList.contains('chart-hidden')) {
                this.classList.remove('chart-hidden');
                this.style.display = 'none';
            }
        }
48492
function unhide() {
  var els = document.getElementsByClassName('suite')
  for (var i = 0; i < els.length; ++i) classes.remove('hidden', els[i])
}