Android WindowManager窗口类型

/**

• Window type: a panel on top of an application window. These windows

• appear on top of their attached window.

• ZMS:应用窗口子窗口-PopupWindow的默认类型

*/

public static final int TYPE_APPLICATION_PANEL = FIRST_SUB_WINDOW;

/**

• Window type: window for showing media (such as video). These windows

• are displayed behind their attached window.

• ZMS:用来显示Media的窗口

*/

public static final int TYPE_APPLICATION_MEDIA = FIRST_SUB_WINDOW+1;

/**

• Window type: a sub-panel on top of an application window. These

• windows are displayed on top their attached window and any

• {@link #TYPE_APPLICATION_PANEL} panels.

• ZMS:TYPE_APPLICATION_PANEL的子窗口

*/

public static final int TYPE_APPLICATION_SUB_PANEL = FIRST_SUB_WINDOW+2;

/** Window type: like {@link #TYPE_APPLICATION_PANEL}, but layout

• of the window happens as that of a top-level window, not

• as a child of its container.

• ZMS:OptionMenu、ContextMenu的默认类型

*/

public static final int TYPE_APPLICATION_ATTACHED_DIALOG = FIRST_SUB_WINDOW+3;

/**

• Window type: window for showing overlays on top of media windows.

• These windows are displayed between TYPE_APPLICATION_MEDIA and the

• application window. They should be translucent to be useful. This

• is a big ugly hack so:

• @hide

• ZMS:TYPE_APPLICATION_MEDIA的重影窗口，显示在TYPE_APPLICATION_MEDIA和应用窗口之间

*/

public static final int TYPE_APPLICATION_MEDIA_OVERLAY = FIRST_SUB_WINDOW+4;

/**

• End of types of sub-windows.

• ZMS:最后一个子窗口-创建子窗口时，客户端可以指定窗口类型介于1000-1999之间，

• 而WindowManagerService在进行窗口叠加时，会动态调整层值。

*/

public static final int LAST_SUB_WINDOW = 1999;

/**

• Start of system-specific window types. These are not normally

• created by applications.

• ZMS:首个系统窗口-系统窗口，系统窗口不需要对应任何Activity，也不需要有父窗口，

• 对于应用程序而言，理论上是无法创建系统窗口的，因为所有的应用程序都没有这个权限，

• 然而系统进程却可以创建系统窗口。

*/

public static final int FIRST_SYSTEM_WINDOW = 2000;

/**

• Window type: the status bar. There can be only one status bar

• window; it is placed at the top of the screen, and all other

• windows are shifted down so they are below it.

• In multiuser systems shows on all users' windows.

• ZMS:状态栏窗口，层值2000。

*/

public static final int TYPE_STATUS_BAR = FIRST_SYSTEM_WINDOW;

/**

• Window type: the search bar. There can be only one search bar

• window; it is placed at the top of the screen.

• In multiuser systems shows on all users' windows.

• ZMS:搜索条窗口，层值2001。

*/

public static final int TYPE_SEARCH_BAR = FIRST_SYSTEM_WINDOW+1;

/**

• Window type: phone. These are non-application windows providing

• user interaction with the phone (in particular incoming calls).

• These windows are normally placed above all applications, but behind

• the status bar.

• In multiuser systems shows on all users' windows.

• ZMS:来电显示窗口

*/

public static final int TYPE_PHONE = FIRST_SYSTEM_WINDOW+2;

/**

• Window type: system window, such as low power alert. These windows

• are always on top of application windows.

• In multiuser systems shows only on the owning user's window.

• ZMS:警告对话框

*/

public static final int TYPE_SYSTEM_ALERT = FIRST_SYSTEM_WINDOW+3;

/**

• Window type: keyguard window.

• In multiuser systems shows on all users' windows.

• @removed

• ZMS:锁屏

*/

public static final int TYPE_KEYGUARD = FIRST_SYSTEM_WINDOW+4;

/**

• Window type: transient notifications.

• In multiuser systems shows only on the owning user's window.

• ZMS:Toast窗口

*/

public static final int TYPE_TOAST = FIRST_SYSTEM_WINDOW+5;

/**

• Window type: system overlay windows, which need to be displayed

• on top of everything else. These windows must not take input

• focus, or they will interfere with the keyguard.

• In multiuser systems shows only on the owning user's window.

• ZMS:系统覆盖窗口，显示在所有窗口之上

*/

public static final int TYPE_SYSTEM_OVERLAY = FIRST_SYSTEM_WINDOW+6;

/**

• Window type: priority phone UI, which needs to be displayed even if

• the keyguard is active. These windows must not take input

• focus, or they will interfere with the keyguard.

• In multiuser systems shows on all users' windows.

• ZMS:在屏幕保护下的来电显示窗口

*/

public static final int TYPE_PRIORITY_PHONE = FIRST_SYSTEM_WINDOW+7;

/**

• Window type: panel that slides out from the status bar

• In multiuser systems shows on all users' windows.

• ZMS:滑动状态栏后出现的窗口

*/

public static final int TYPE_SYSTEM_DIALOG = FIRST_SYSTEM_WINDOW+8;

/**

• Window type: dialogs that the keyguard shows

• In multiuser systems shows on all users' windows.

• ZMS:锁屏弹出的对话框

*/

public static final int TYPE_KEYGUARD_DIALOG = FIRST_SYSTEM_WINDOW+9;

/**

• Window type: internal system error windows, appear on top of

• everything they can.

• In multiuser systems shows only on the owning user's window.

• ZMS:系统错误窗口

*/

public static final int TYPE_SYSTEM_ERROR = FIRST_SYSTEM_WINDOW+10;

/**

• Window type: internal input methods windows, which appear above

• the normal UI. Application windows may be resized or panned to keep

• the input focus visible while this window is displayed.

• In multiuser systems shows only on the owning user's window.

• ZMS:输入法窗口

*/

public static final int TYPE_INPUT_METHOD = FIRST_SYSTEM_WINDOW+11;

/**

• Window type: internal input methods dialog windows, which appear above

• the current input method window.

• In multiuser systems shows only on the owning user's window.

• ZMS:输入法中备选框对应的窗口

*/

public static final int TYPE_INPUT_METHOD_DIALOG= FIRST_SYSTEM_WINDOW+12;

/**

• Window type: wallpaper window, placed behind any window that wants

• to sit on top of the wallpaper.

• In multiuser systems shows only on the owning user's window.

• ZMS:墙纸对应的窗口

*/

public static final int TYPE_WALLPAPER = FIRST_SYSTEM_WINDOW+13;

/**

• Window type: panel that slides out from over the status bar

• In multiuser systems shows on all users' windows.

• ZMS:滑动状态栏后出现的面板窗口

*/

public static final int TYPE_STATUS_BAR_PANEL = FIRST_SYSTEM_WINDOW+14;

/**

• Window type: secure system overlay windows, which need to be displayed

• on top of everything else. These windows must not take input

• focus, or they will interfere with the keyguard.

• This is exactly like {@link #TYPE_SYSTEM_OVERLAY} except that only the

• system itself is allowed to create these overlays. Applications cannot

• obtain permission to create secure system overlays.

• In multiuser systems shows only on the owning user's window.

• @hide

• ZMS:安全系统覆盖窗口，显示在所有窗口之上。

*/

public static final int TYPE_SECURE_SYSTEM_OVERLAY = FIRST_SYSTEM_WINDOW+15;

/**

• Window type: the drag-and-drop pseudowindow. There is only one

• drag layer (at most), and it is placed on top of all other windows.

• In multiuser systems shows only on the owning user's window.

• @hide

• ZMS:拖动放开窗口。

*/

public static final int TYPE_DRAG = FIRST_SYSTEM_WINDOW+16;

/**

• Window type: panel that slides out from under the status bar

• In multiuser systems shows on all users' windows.

• @hide

• ZMS:滑动状态栏显示的面板窗口。

*/

public static final int TYPE_STATUS_BAR_SUB_PANEL = FIRST_SYSTEM_WINDOW+17;

/**

• Window type: (mouse) pointer

• In multiuser systems shows on all users' windows.

• @hide

• ZMS:鼠标窗口。

*/

public static final int TYPE_POINTER = FIRST_SYSTEM_WINDOW+18;

/**

• Window type: Navigation bar (when distinct from status bar)

• In multiuser systems shows on all users' windows.

• @hide

• ZMS:导航栏窗口

*/

public static final int TYPE_NAVIGATION_BAR = FIRST_SYSTEM_WINDOW+19;

/**

• Window type: The volume level overlay/dialog shown when the user

• changes the system volume.

• In multiuser systems shows on all users' windows.

• @hide

• ZMS:音量调节窗口

*/

public static final int TYPE_VOLUME_OVERLAY = FIRST_SYSTEM_WINDOW+20;

/**

• Window type: The boot progress dialog, goes on top of everything

• in the world.

• In multiuser systems shows on all users' windows.

• @hide

• ZMS:系统启动进程对话框窗口-在其他内容之上。

*/

public static final int TYPE_BOOT_PROGRESS = FIRST_SYSTEM_WINDOW+21;

/**

• Window type: Fake window to consume touch events when the navigation

• bar is hidden.

• In multiuser systems shows on all users' windows.

• @hide

• ZMS:隐藏导航栏时消化触摸事件窗口-当导航栏隐藏时，用来处理消费触摸事件的模拟窗口。

*/

public static final int TYPE_HIDDEN_NAV_CONSUMER = FIRST_SYSTEM_WINDOW+22;

/**

• Window type: Dreams (screen saver) window, just above keyguard.

• In multiuser systems shows only on the owning user's window.

• @hide

• ZMS:LDreams屏保窗口，仅在锁屏窗口之上。

*/

public static final int TYPE_DREAM = FIRST_SYSTEM_WINDOW+23;

/**

• Window type: Navigation bar panel (when navigation bar is distinct from status bar)

• In multiuser systems shows on all users' windows.

• @hide

• ZMS:导航栏面板窗口

*/

public static final int TYPE_NAVIGATION_BAR_PANEL = FIRST_SYSTEM_WINDOW+24;

/**

• Window type: Behind the universe of the real windows.

• In multiuser systems shows on all users' windows.

• @hide

• ZMS:全局背景窗口

*/

public static final int TYPE_UNIVERSE_BACKGROUND = FIRST_SYSTEM_WINDOW+25;

/**

• Window type: Display overlay window. Used to simulate secondary display devices.

• In multiuser systems shows on all users' windows.

• @hide

• ZMS:显示重绘窗口，用来模拟第二屏显示设备。

*/

public static final int TYPE_DISPLAY_OVERLAY = FIRST_SYSTEM_WINDOW+26;

/**

• Window type: Magnification overlay window. Used to highlight the magnified

• portion of a display when accessibility magnification is enabled.

• In multiuser systems shows on all users' windows.

• @hide

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