iOS开发－AutoresizingMask

关于ios的控件的AutoresizingMask属性   个人测试的一些结果

setAutoresizingMask控件的自适应

UIViewAutoresizingNone                 = 0,

UIViewAutoresizingFlexibleLeftMargin   = 1 << 0,

UIViewAutoresizingFlexibleWidth        = 1 << 1,

UIViewAutoresizingFlexibleRightMargin  = 1 << 2,

UIViewAutoresizingFlexibleTopMargin    = 1 << 3,

UIViewAutoresizingFlexibleHeight       = 1 << 4,

UIViewAutoresizingFlexibleBottomMargin = 1 << 5

UIViewAutoresizingNone

UILabel*    label = [[UILabel alloc] initWithFrame:CGRectMake(50, 100, 200, 40)];

[label setAutoresizingMask: UIViewAutoresizingNone];
 控件相对于俯视图坐标值不变

CGRectMake(50, 100, 200, 40)

UIViewAutoresizingFlexibleWidth：控件的宽度随着父视图的宽度按比例改变
   例如

label宽度为
100     屏幕的宽度为320          当屏幕宽度为480时      label宽度  变为  100*480/320

同理

UIViewAutoresizingFlexibleHeight相同

UIViewAutoresizingFlexibleLeftMargin
 到屏幕左边的距离随着父视图的宽度按比例改变

例如

CGRectMake(50, 100, 200, 40)];

50
    屏幕的宽度为320          当屏幕宽度为480时      label宽度  变为  50*480/320

控件变为

CGRectMake(75, 100, 200, 40)];

UIViewAutoresizingFlexibleRightMargin

UIViewAutoresizingFlexibleTopMargin

UIViewAutoresizingFlexibleBottomMargin

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