頁面佈局autoresizing

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    UIView *view = [[UIView alloc]initWithFrame:CGRectMake(100, 100, 200, 200)];
    view.backgroundColor = [UIColor colorWithRed:0 green:1 blue:1 alpha:0.8];
    [self.view addSubview:view];
    //autoresizingMask
    view.autoresizingMask = UIViewAutoresizingFlexibleWidth;
//    UIViewAutoresizingNone                 = 0,不進行自動調整
//    UIViewAutoresizingFlexibleLeftMargin   = 1 << 0,自動調整與superview左側距離，右側距離保持不變
//    UIViewAutoresizingFlexibleWidth        = 1 << 1,自動調整寬度，保證與superview左右距離不變
//    UIViewAutoresizingFlexibleRightMargin  = 1 << 2,自動調整與superview右側距離，左側距離保持不變
//    UIViewAutoresizingFlexibleTopMargin    = 1 << 3,頂部柔軟，底部固定
//    UIViewAutoresizingFlexibleHeight       = 1 << 4,自動調整高度，保證與superview上下距離不變
//    UIViewAutoresizingFlexibleBottomMargin = 1 << 5底部柔軟，頂部固定
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end