#### 本章主要内容： - 探讨状态栏与导航栏的启动过程 - 介绍状态栏中的通知信息、系统状态图标等信息的管理与显示原理 - 介绍导航栏中的虚拟按键、SearchPanel的工作原理 - 介绍SystemUIVisibility #### 本章涉及的源代码文件名及位置： - SystemServer.java `frameworks/base/services/java/com/android/server/SystemServer.java` - SystemUIService.java `frameworks/base/packages/SystemUI/src/com/android/systemui/SystemUIService.java` - PhoneWindowManager.java `frameworks/base/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java` - PhoneStatusBar.java `frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java` - BaseStatusBar.java `frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java` - StatusBarManager.java `frameworks/base/core/java/android/app/StatusBarManager.java` - StatusBarManagerService.java `frameworks/base/services/java/com/android/server/StatusBarManagerService.java` - NotificationManager.java `frameworks/base/core/java/android/app/NotificationManager.java` - NotificationManagerService.java `frameworks/base/services/java/com/android/server/NotificationManagerService.java` - KeyButtonView.java `frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/policy/KeyButtonView.java` - NavigationBarView.java `frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationBarView.java` - DelegateViewHelper.java `frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/DelegateViewHelper.java` - SearchPanelView.java `frameworks/base/packages/SystemUI/src/com/android/systemui/SearchPanelView.java` - PhoneWindow.java `frameworks/base/policy/src/com/android/internal/policy/impl/PhoneWindow.java` - InputMethodService.java `frameworks/base/core/java/android/inputmethodservice/InputMethodService.java` - View.java `frameworks/base/core/java/android/view/View.java` - ViewRootImpl.java `frameworks/base/core/java/android/view/ViewRootImpl.java` - WindowManagerService.java `frameworks/base/services/java/com/android/server/wm/WindowManagerService.java`