对于GoogleGlass应用程序，如何让您的应用程序在向下滑动到主玻璃菜单时优雅地退出？在MainActivity中尝试这段代码:@OverrideprotectedvoidonCreate(BundlesavedInstanceState){super.onCreate(savedInstanceState);if(getIntent().getBooleanExtra("EXIT",false)){finish();return;}}@OverridepublicbooleanonKeyDown(intkeycode,KeyEventevent){if(keycode==KeyE