指定是否应在此应用程序的 iOS 版本中隐藏主屏幕按钮。
在 iPhone X 上，主屏幕按钮以系统手势（从屏幕的下边缘向上滑动）的形式实现。
此虚拟按钮的位置由白色条表示。
如果启用了此设置，只要用户几秒钟没有触摸屏幕，主屏幕按钮就会隐藏在视图中。
请注意，iOS 人机界面指南不建议为不包含被动观看体验（例如观看视频或照片幻灯片放映）的应用程序启用此行为。
可以通过更改 iOS.Device.hideHomeButton 属性在运行时隐藏主屏幕按钮。
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