UIViewAutoresizingNone就图像而言,在视图上设置时该值对应于哪个图像?

你是对的,你显示的图像相当于UIViewAutoresizingNone。
您可以从Interface Builder中看到 Autosizing 类似于,

虽然以编程方式,这些支柱的行为与上图“相反”,例如,

UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight) 等价于
UIViewAutoresizingFlexibleTopMargin | UIViewAutoresizingFlexibleBottomMargin |UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleRightMargin) 等价于
UIViewAutoresizingNone相当于
UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleBottomMargin) 等价于
UIViewAutoresizingFlexibleRightMargin | UIViewAutoresizingFlexibleTopMargin) 等价于
UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleRightMargin | UIViewAutoresizingFlexibleTopMargin | UIViewAutoresizingFlexibleBottomMargin | UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight) 等价于
UIViewAutoresizingFlexibleRightMargin | UIViewAutoresizingFlexibleBottomMargin | UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight) 等价于
UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleRightMargin | UIViewAutoresizingFlexibleWidth) 等价于
UIViewAutoresizingFlexibleBottomMargin | UIViewAutoresizingFlexibleRightMargin | UIViewAutoresizingFlexibleLeftMargin)
这样做UIViewAutoresizingNone:

为了将来的参考,只需使用侧面示例,该示例显示您的 Autosizing 将如何表现:

是的,您问题中的图像表示UIViewAutoresizingNone. 设置外部的条形表示“不灵活”,但设置内部的箭头表示flexible。
请注意,如果您尝试设置UIViewAutoresizingNone然后调整超级视图的大小,它将不会受到尊重,因为必须更改某些内容。