尽管没有供 3rd 方开发人员执行此操作的 API，但 WP7 上的应用程序栏有点奇怪.如果您在图片中心查看全尺寸图片，它会自动为您展开菜单.也许这是一个 UI 错误，或者我们都可以在未来的更新中访问这个 API.值得再次检查.

Even though there is no API for 3rd party developers to do this, the application bar is a bit of an oddity on WP7. If you view a picture full size in the picture hub it will automatically expand the menu for you. Perhaps this is a UI mistake or perhaps we'll all gain access to this API in a future update. It's worth checking back on.