ios控件布局 autoresizingMash

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