一、状态栏的隐藏与显示 SystemUI模块修改文件如下: frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/CentralSurfacesImpl.java frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/window/StatusBarWindowController.java 二、导航栏的隐藏与显示 packages/apps/Launcher3/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java packages/apps/Launcher3/quickstep/src/com/android/quickstep/TouchInteractionService.java 三、Settings模块修改添加开关: packages/apps/Settings/res/xml/display_settings.xml...