ios的控件的AutoresizingMask属性

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