Android 禁止下拉菜单栏

如下图，有时候我们需要禁止用户下拉出菜单栏。

在解决这个问题之前，我们需要知道，下拉菜单栏总共有两种，一种是锁屏下的下拉菜单，一种是非锁屏下的下拉菜单。因此需要两种不同的方法，才能将下来菜单栏屏蔽干净。

1.屏蔽非锁屏下的下拉菜单栏

这种Android 系统其实是提供了方法的，只不过是隐藏的，只给系统应用，也就是用mk 编译的apk使用。如果第三方应用想要使用，或者Android stuido 编译方式的想要使用。则可以使用反射。

/*** Allows an app to control the status bar.*/
@SystemService(Context.STATUS_BAR_SERVICE)
public class StatusBarManager {/** @hide */public static final int DISABLE_EXPAND = View.STATUS_BAR_DISABLE_EXPAND;/** @hide */public static final int DISABLE_NOTIFICATION_ICONS = View.STATUS_BAR_DISABLE_NOTIFICATION_ICONS;/** @hide */public static final int DISABLE_NOTIFICATION_ALERTS= View.STATUS_BAR_DISABLE_NOTIFICATION_ALERTS;/** @hide */@Deprecated@UnsupportedAppUsagepublic static final int DISABLE_NOTIFICATION_TICKER= View.STATUS_BAR_DISABLE_NOTIFICATION_TICKER;/** @hide */public static final int DISABLE_SYSTEM_INFO = View.STATUS_BAR_DISABLE_SYSTEM_INFO;/** @hide */public static final int DISABLE_HOME = View.STATUS_BAR_DISABLE_HOME;/** @hide */public static final int DISABLE_RECENT = View.STATUS_BAR_DISABLE_RECENT;/** @hide */public static final int DISABLE_BACK = View.STATUS_BAR_DISABLE_BACK;/** @hide */public static final int DISABLE_CLOCK = View.STATUS_BAR_DISABLE_CLOCK;/** @hide */public static final int DISABLE_SEARCH = View.STATUS_BAR_DISABLE_SEARCH;/** @hide */@Deprecatedpublic static final int DISABLE_NAVIGATION =View.STATUS_BAR_DISABLE_HOME | View.STATUS_BAR_DISABLE_RECENT;/** @hide */public static final int DISABLE_NONE = 0x00000000;/** @hide */public static final int DISABLE_MASK = DISABLE_EXPAND | DISABLE_NOTIFICATION_ICONS| DISABLE_NOTIFICATION_ALERTS | DISABLE_NOTIFICATION_TICKER| DISABLE_SYSTEM_INFO | DISABLE_RECENT | DISABLE_HOME | DISABLE_BACK | DISABLE_CLOCK| DISABLE_SEARCH;    
/*** Disable some features in the status bar.  Pass the bitwise-or of the DISABLE_* flags.* To re-enable everything, pass {@link #DISABLE_NONE}.** @hide*/@UnsupportedAppUsagepublic void disable(int what) {try {final int userId = Binder.getCallingUserHandle().getIdentifier();final IStatusBarService svc = getService();if (svc != null) {svc.disableForUser(what, mToken, mContext.getPackageName(), userId);}} catch (RemoteException ex) {throw ex.rethrowFromSystemServer();}}

2. 屏蔽锁屏下的下拉菜单栏

这种没有接口，只能在systemui 里面修改源码，来屏蔽掉。