UIView autoresizingMask-代码的界面生成器-以编程方式创建支杆和弹簧-Swift或Objective-C

为视图设置自动调整大小蒙版时，请使用按位包含
（或

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• Springs are represented by specifying a mask (Objective-C or Swift, respectively):

  • vertical spring:

    UIViewAutoresizingFlexibleHeight

    or

    .flexibleHeight

  • horizontal spring:

    UIViewAutoresizingFlexibleWidth

    or

    .flexibleWidth

• Struts are represented by the lack of one of the four ‘flexible margin’ masks (i.e. if a strut does not exist, the mask for that margin is specified):

  • UIViewAutoresizingFlexibleLeftMargin

    or

    .flexibleLeftMargin

  • UIViewAutoresizingFlexibleRightMargin

    or

    .flexibleRightMargin

  • UIViewAutoresizingFlexibleTopMargin

    or

    .flexibleTopMargin

  • UIViewAutoresizingFlexibleBottomMargin

    or

    .flexibleBottomMargin

例如，具有水平弹簧以及顶部和底部支撑的视图
将具有宽度，并且左右边界指定为可伸缩的：

斯威夫特3和4

Swift 3 and 4

mySubview.autoresizingMask = [.flexibleWidth, .flexibleLeftMargin, .flexibleRightMargin]

Swift 2

mySubview.autoresizingMask = [.FlexibleWidth, .FlexibleLeftMargin, .FlexibleRightMargin]

Swift 1.2

mySubview.autoresizingMask = .FlexibleWidth | .FlexibleLeftMargin | .FlexibleRightMargin

Objective-C

mySubview.autoresizingMask = (UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleLeftMargin |          UIViewAutoresizingFlexibleRightMargin);