IOS开发之——屏幕适配-Autoresizing(01)

本文介绍: 一概述什么是Aut o res izin g 布局通过布局实现Aut o resizin g 布局通过代码实现Auto resizin g布局二 Auto resizing布局2.1 什么是Auto resizingAuto resizing是iOS中传统的界面自动布局方式通过它，当父视图 frame 变换时，子视图会自动的做出相应的调整2.2 Auto resizing布局介绍View中参数说明：x：选中View的X坐标 y：选中View的Y坐标Widt h：选中View的宽度Height：选中Vie

View中参数说明：

Autor esizing说明：

Autor esizing右边视图说明：

父布局(红色View)：设置上边距固定、左边距固定、上下/左右缩放箭头

// 默认为YES
@property(nonatomic) BOOL autoresizesSubviews;
// 默认为UIViewAutoresizingNone
@property(nonatomic) UIViewAutoresizing autoresizingMask;

UIViewAutoresizingNone                 = 0,      不执行任何调整
UIViewAutoresizingFlexibleLeftMargin   = 1 << 0, 自动调整与父视图的左边距
UIViewAutoresizingFlexibleWidth        = 1 << 1, 自动调整自身的宽度
UIViewAutoresizingFlexibleRightMargin  = 1 << 2, 自动调整与父视图的右边距
UIViewAutoresizingFlexibleTopMargin    = 1 << 3, 自动调整与父视图的上边距
UIViewAutoresizingFlexibleHeight       = 1 << 4, 自动调整自身的高度
UIViewAutoresizingFlexibleBottomMargin = 1 << 5, 自动调整与父视图的下边距

- (void)viewDidLoad {
    [super viewDidLoad];
    
    UIView * parentView = [[UIView alloc]initWithFrame:CGRectMake(20, 40, 200, 200)];
    parentView.backgroundColor=[UIColor redColor];
    parentView.autoresizingMask=UIViewAutoresizingFlexibleRightMargin|UIViewAutoresizingFlexibleBottomMargin;
    parentView.autoresizingMask=UIViewAutoresizingFlexibleWidth;
    
    UIView * view1 = [[UIView alloc]initWithFrame:CGRectMake(0, 0, 50, 50)];
    view1.backgroundColor=[UIColor blueColor];
    view1.autoresizingMask=UIViewAutoresizingFlexibleRightMargin|UIViewAutoresizingFlexibleBottomMargin;
    view1.autoresizingMask=UIViewAutoresizingFlexibleWidth;
    
    [parentView addSubview:view1];
    
    UIView * view2 = [[UIView alloc]initWithFrame:CGRectMake(150, 150, 50, 50)];
    view2.backgroundColor=[UIColor greenColor];
    view2.autoresizingMask=UIViewAutoresizingFlexibleLeftMargin|UIViewAutoresizingFlexibleTopMargin;
    view2.autoresizingMask=UIViewAutoresizingFlexibleWidth;
    [parentView addSubview:view2];
         
    [self.view addSubview:parentView];  
}